Version 1.1
Published October 2020
Copyright©2020 ASRock INC. All rights reserved.
Copyright Notice:
No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/
perchlorate”
ASRock Website: http://www.asrock.com
AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage caused by our goods. You are also entitled
to have the goods repaired or replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure. If you require assistance please call ASRock Tel
: +886-2-28965588 ext.123 (Standard International call charges apply)
e terms HDMI® and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.
Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 Specications 2
1.3 Motherboard Layout 7
1.4 I/O Panel 9
Chapter 2 Installation 10
2.1 Installing the CPU 11
2.2 Installing the CPU Fan and Heatsink 13
2.3 Installing Memory Modules (DIMM) 21
2.4 Expansion Slots (PCI Express Slots) 25
2.5 Jumpers Setup 26
2.6 Onboard Headers and Connectors 27
2.7 CrossFireX
TM
and Quad CrossFireX
TM
Operation Guide 32
2.7.1 Installing Two CrossFireX
TM
-Ready Graphics Cards 32
2.7.2 Driver Installation and Setup 34
2.8 M.2_SSD (NGFF) Module Installation Guide (M2_1) 35
2.9 M.2_SSD (NGFF) Module Installation Guide (M2_2) 38
Chapter 3 Software and Utilities Operation 41
3.1 Installing Drivers 41
3.2 A-Tuning 42
3.2.1 Installing A-Tuning 42
3.2.2 Using A-Tuning 42
3.3 ASRock Live Update & APP Shop 45
3.3.1 UI Overview 45
3.3.2 Apps 46
3.3.3 BIOS & Drivers 49
3.3.4 Setting 50
3.4 ASRock Polychrome RGB 51
Chapter 4 UEFI SETUP UTILITY 54
4.1 Introduction 54
4.1.1 UEFI Menu Bar 54
4.1.2 Navigation Keys 55
4.2 Main Screen 56
4.3 OC Tweaker Screen 57
4.4 Advanced Screen 59
4.4.1 CPU Conguration 60
4.4.2 North Bridge Conguration 61
4.4.3 South Bridge Conguration 62
4.4.4 Storage Conguration 63
4.4.5 Super IO Conguration 64
4.4.6 ACPI Conguration 65
4.4.7 Trusted Computing 66
4.4.8 AMD CBS 67
4.4.9 AMD PBS 75
4.5 Tools 76
4.6 Hardware Health Event Monitoring Screen 78
Chapter 1 Introduction
ank you for purchasing ASRock B450M Pro4 motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
In this manual, Chapter 1 and 2 contains the introduction of the motherboard
and step-by-step installation guides. Chapter 3 contains the operation guide of the
soware and utilities. Chapter 4 contains the conguration guide of the BIOS setup.
1.1 Package Contents
•
ASRock B450M Pro4 Motherboard (Micro ATX Form Factor)
•
ASRock B450M Pro4 Quick Installation Guide
•
ASRock B450M Pro4 Support CD
•
1 x I/O Panel Shield
•
2 x Serial ATA (SATA) Data Cables (Optional)
•
2 x Screws for M.2 Sockets (Optional)
4.7 Security Screen 81
4.8 Boot Screen 82
4.9 Exit Screen 84
B450M Pro4
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Chapter 1 Introduction
ank you for purchasing ASRock B450M Pro4 motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock’s
commitment to quality and endurance.
In this manual, Chapter 1 and 2 contains the introduction of the motherboard
and step-by-step installation guides. Chapter 3 contains the operation guide of the
soware and utilities. Chapter 4 contains the conguration guide of the BIOS setup.
1.1 Package Contents
•
ASRock B450M Pro4 Motherboard (Micro ATX Form Factor)
•
ASRock B450M Pro4 Quick Installation Guide
•
ASRock B450M Pro4 Support CD
•
1 x I/O Panel Shield
•
2 x Serial ATA (SATA) Data Cables (Optional)
•
2 x Screws for M.2 Sockets (Optional)
Because the motherboard specications and the BIOS soware might be updated, the
content of this manual will be subject to change without notice. In case any modica-
tions of this manual occur, the updated version will be available on ASRock’s website
without further notice. If you require technical support related to this motherboard,
please visit our website for specic information about the model you are using. You
may nd the latest VGA cards and CPU support list on ASRock’s website as well.
ASRock website http://www.asrock.com.
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1.2 Specications
Platform
•
Micro ATX Form Factor
•
Solid Capacitor design
CPU
•
AMD AM4 Socket
•
Digi Power design
•
9 Power Phase design
Chipset
•
AMD Promontory B450
Memory
•
Dual Channel DDR4 Memory Technology
•
4 x DDR4 DIMM Slots
•
AMD Ryzen series CPUs (Matisse) support DDR4
3200/2933/2667/2400/2133 ECC & non-ECC, un-buered
memory*
•
AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4
3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-
buered memory*
•
AMD Ryzen series CPUs (Picasso) support DDR4
2933/2667/2400/2133 non-ECC, un-buered memory*
•
AMD Ryzen series CPUs (Summit Ridge) support DDR4
3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-
buered memory*
•
AMD Ryzen series CPUs (Raven Ridge) support DDR4
3200+(OC)/2933/2667/2400/2133 non-ECC, un-buered
memory*
* For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only
supported with PRO CPUs.
* Please refer to Memory Support List on ASRock’s website for
more information. (http://www.asrock.com/)
* Please refer to page 21 for the table for AMD non-XMP memory
frequency support. For more details, please refer to the QVL on
ASRock’s website.
•
Max. capacity of system memory: 64GB
•
Supports Extreme Memory Prole (XMP) memory modules
•
15μ Gold Contact in DIMM Slots
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Expansion
Slot
AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle
Ridge)
•
1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
•
1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Ryzen series CPUs (Picasso, Raven Ridge)
•
1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*
•
1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Athlon series CPUs
•
1 x PCI Express 3.0 x16 Slot (PCIE2: x4 mode)*
•
1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
•
* Supports NVMe SSD as boot disks
•
1 x PCI Express 2.0 x1 Slot
•
Supports AMD Quad CrossFireX
TM
and CrossFireX
TM
Graphics
•
Integrated AMD Radeon
TM
Vega Series Graphics in Ryzen
Series APU*
* Actual support may vary by CPU
•
DirectX 12, Pixel Shader 5.0
•
Shared memory default 2GB. Max Shared memory supports
up to 16GB.
* e Max shared memory 16GB requires 32GB system memory
installed.
•
ree graphics output options: D-Sub, DVI-D and HDMI
•
Supports Triple Monitor
•
Supports HDMI 1.4 with max. resolution up to 4K x 2K
(4096x2160) @ 24Hz / (3840x2160) @ 30Hz
•
Supports DVI-D with max. resolution up to 1920x1200 @
60Hz
•
Supports D-Sub with max. resolution up to 1920x1200 @
60Hz
•
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI 1.4 Port (Compliant
HDMI monitor is required)
•
Supports HDCP 1.4 with DVI-D and HDMI 1.4 Ports
•
Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port
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4
Audio
•
7.1 CH HD Audio with Content Protection (Realtek ALC892
Audio Codec)
•
Premium Blu-ray Audio support
•
Supports Surge Protection
•
ELNA Audio Caps
LAN
•
PCIE x1 Gigabit LAN 10/100/1000 Mb/s
•
Realtek RTL8111H
•
Supports Wake-On-LAN
•
Supports Lightning/ESD Protection
•
Supports Energy Ecient Ethernet 802.3az
•
Supports PXE
Rear Panel
I/O
•
1 x PS/2 Mouse/Keyboard Port
•
1 x D-Sub Port
•
1 x DVI-D Port
•
1 x HDMI Port
•
2 x USB 2.0 Ports (Supports ESD Protection)
•
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Pro-
tection)
•
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Pro-
tection)
•
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
•
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
•
HD Audio Jacks: Line in / Front Speaker / Microphone
Storage
•
4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0,
RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
* M2_2 and SATA3_3 share lanes. If either one of them is in use,
the other one will be disabled.
•
1 x Ultra M.2 Socket (M2_1), supports M Key type
2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32
Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge
and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series
APU)**
** Supports NVMe SSD as boot disks
** Supports ASRock U.2 Kit
•
1 x M.2 Socket (M2_2), supports M Key type
2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module
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English
Connector
•
1 x COM Port Header
•
1 x TPM Header
•
1 x Chassis Intrusion Header
•
1 x Power LED and Speaker Header
•
1 x RGB LED Header
* Supports in total up to 12V/3A, 36W LED Strip
•
1 x Addressable LED Header
* Supports in total up to 5V/3A, 15W LED Strip
•
1 x AMD Fan LED Header
* e AMD Fan LED Header supports LED strips of maximum
load of 3A (36W) and length up to 2.5M.
•
1 x CPU Fan Connector (4-pin)
* e CPU Fan Connector supports the CPU fan of maximum
1A (12W) fan power.
•
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan
Speed Control)
* e CPU/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
•
3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan
Speed Control)
* e Chassis/Water Pump Fan supports the water cooler fan of
maximum 2A (24W) fan power.
* CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and
CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.
•
1 x 24 pin ATX Power Connector
•
1 x 8 pin 12V Power Connector
•
1 x Front Panel Audio Connector
•
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD
Protection)
•
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
(Supports ESD Protection)
BIOS
Feature
•
AMI UEFI Legal BIOS with multilingual GUI support
•
Supports “Plug and Play”
•
ACPI 5.1 compliance wake up events
•
Supports jumperfree
•
SMBIOS 2.3 support
•
DRAM Voltage multi-adjustment
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6
Hardware
Monitor
•
Temperature Sensing: CPU, CPU/Water Pump, Chassis/Wa-
ter Pump Fans
•
Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water
Pump Fans
•
Quiet Fan (Auto adjust chassis fan speed by CPU tempera-
ture): CPU, CPU/Water Pump, Chassis/Water Pump Fans
•
Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/
Water Pump Fans
•
CASE OPEN detection
•
Voltage monitoring: +12V, +5V, +3.3V, Vcore
OS
•
Microso® Windows® 10 64-bit
Certica-
tions
•
FCC, CE
•
ErP/EuP ready (ErP/EuP ready power supply is required)
* For detailed product information, please visit our website:
http://www.asrock.com
Please realize that there is a certain risk involved with overclocking, including adjust-
ing the setting in the BIOS, applying Untied Overclocking Technology, or using third-
party overclocking tools. Overclocking may aect your system’s stability, or even cause
damage to the components and devices of your system. It should be done at your own
risk and expense. We are not responsible for possible damage caused by overclocking.
B450M Pro4
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1.3 Motherboard Layout
English
8
No. Description
1 ATX 12V Power Connector (ATX12V1)
2 CPU/Water Pump Fan Connector (CPU_FAN2/WP)
3 CPU Fan Connector (CPU_FAN1)
4 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
5 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
6 AMD Fan LED Header (AMD_FAN_LED1)
7 ATX Power Connector (ATXPWR1)
8 USB 3.2 Gen1 Header (USB3_56)
9 SATA3 Connector (SATA3_3) (Upper)
10 SATA3 Connector (SATA3_4) (Lower)
11 SATA3 Connector (SATA3_2) (Lower)
12 SATA3 Connector (SATA3_1) (Upper)
13 System Panel Header (PANEL1)
14 Power LED and Speaker Header (SPK_PLED1)
15 Chassis Intrusion Header (CI1)
16 Chassis/Water Pump Fan Connector (CHA_FAN2/WP)
17 Chassis/Water Pump Fan Connector (CHA_FAN3/WP)
18 Clear CMOS Jumper (CLRCMOS1)
19 USB 2.0 Header (USB_5_6)
20 USB 2.0 Header (USB_3_4)
21 COM Port Header (COM1)
22 TPM Header (TPMS1)
23 RGB LED Header (RGB_HEADER1)
24 Addressable LED Header (ADDR_LED1)
25 Front Panel Audio Header (HD_AUDIO1)
26 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
B450M Pro4
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English
1.4 I/O Panel
No. Description No. Description
1 USB 2.0 Ports (USB_1_2) 8 USB 3.2 Gen1 Ports (USB3_12)
2 D-Sub Port 9 USB 3.2 Gen2 Type-A Port (USB31_TA_1)
3 LAN RJ-45 Port* 10 USB 3.2 Gen2 Type-C Port (USB31_TC_1)
4 Line In (Light Blue)** 11 HDMI Port
5 Front Speaker (Lime)** 12 DVI-D Port
6 Microphone (Pink)** 13 PS/2 Mouse/Keyboard Port
7 USB 3.2 Gen1 Ports (USB3_34)
* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port
1
8 7
9
1113
3
6
5
4
10
12
2
** Function of the Audio Ports in 7.1-channel Conguration:
Port Function
Light Blue (Rear panel) Rear Speaker Out
Lime (Rear panel) Front Speaker Out
Pink (Rear panel) Central /Subwoofer Speaker Out
Lime (Front panel) Side Speaker Out
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10
is is a Micro ATX form factor motherboard. Before you install the motherboard,
study the conguration of your chassis to ensure that the motherboard ts into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
•
Make sure to unplug the power cord before installing or removing the motherboard.
Failure to do so may cause physical injuries to you and damages to motherboard
components.
•
In order to avoid damage from static electricity to the motherboard’s components,
NEVER place your motherboard directly on a carpet. Also remember to use a grounded
wrist strap or touch a safety grounded object before you handle the components.
•
Hold components by the edges and do not touch the ICs.
•
Whenever you uninstall any components, place them on a grounded anti-static pad or
in the bag that comes with the components.
•
When placing screws to secure the motherboard to the chassis, please do not over-
tighten the screws! Doing so may damage the motherboard.
Chapter 2 Installation
B450M Pro4
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English
2.1 Installing the CPU
Unplug all power cables before installing the CPU.
2
1
English
12
3
B450M Pro4
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2.2 Installing the CPU Fan and Heatsink
Aer you install the CPU into this motherboard, it is necessary to install a larger
heatsink and cooling fan to dissipate heat. You also need to spray thermal grease
between the CPU and the heatsink to improve heat dissipation. Make sure that the
CPU and the heatsink are securely fastened and in good contact with each other.
Installing the CPU Box Cooler SR1
Please turn o the power or remove the power cord before changing a CPU or heatsink.
1
2
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14
3
4
C
P
U
_
FA
N
1
4-pin FAN cable
B450M Pro4
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English
Installing the AM4 Box Cooler SR2
1
2
English
16
3
B450M Pro4
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English
4-pin FAN cable
RGB LED Cable
+12V
*e diagram shown here are for reference only. Please refer to page 31 for the orientation of
AMD Fan LED Header (AMD_FAN_LED1).
5
CPU_
FA
N
1
AM
D
_
FA
N
_
L
E
D
1
4
C
P
U
_
FA
N
1
4-pin FAN cable
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Installing the AM4 Box Cooler SR3
1
2
B450M Pro4
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3
4
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5
CPU_FAN1
Please note that this connector is the interface to the LED control board on the SR3, it requires the AMD
utility "SR3 Settings Soware" to control the LED.
*e diagram shown here are for reference only. Please refer to page 28 for the orientation of USB Header.
C
P
U
_
FA
N
1
6
U
S
B
4-pin FAN cable
USB 2.0 Header
B450M Pro4
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English
Please note that this connector is the interface to the LED control board on the SR3, it requires the AMD
utility "SR3 Settings Soware" to control the LED.
*e diagram shown here are for reference only. Please refer to page 28 for the orientation of USB Header.
4-pin FAN cable
2.3 Installing Memory Modules (DIMM)
is motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
AMD non-XMP Memory Frequency Support
Ryzen Series CPUs (Matisse):
1. For dual channel conguration, you always need to install identical (the same
brand, speed, size and chip-type) DDR4 DIMM pairs.
2. It is unable to activate Dual Channel Memory Technology with only one or three
memory module installed.
3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
slot; otherwise, this motherboard and DIMM may be damaged.
UDIMM Memory Slot
Frequency
(Mhz)
A1 A2 B1 B2
- SR - - 3200
- DR - - 3200
- SR - SR 3200
- DR - DR 3200
SR SR SR SR 2933
SR/DR DR SR/DR DR 2667
SR/DR SR/DR SR/DR SR/DR 2667
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22
Ryzen Series CPUs (Pinnacle Ridge):
Ryzen Series CPUs (Picasso):
UDIMM Memory Slot
Frequency
(Mhz)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2933
- SR - SR 2933
- DR - DR 2933
SR SR SR SR 2933
SR/DR DR SR/DR DR 2667
SR/DR SR/DR SR/DR SR/DR 2133-2400
UDIMM Memory Slot
Frequency
(Mhz)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2667
- SR - SR 2667
- DR - DR 2400
SR SR SR SR 2133
SR/DR DR SR/DR DR 1866
SR/DR SR/DR SR/DR SR/DR 1866
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Ryzen Series CPUs (Summit Ridge):
Ryzen Series CPUs (Raven Ridge):
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
UDIMM Memory Slot
Frequency
(Mhz)
A1 A2 B1 B2
- SR - - 2667
- DR - - 2667
- SR - SR 2667
- DR - DR 2667
SR SR SR SR 2667
SR/DR DR SR/DR DR 2667
SR/DR SR/DR SR/DR SR/DR 2133-2400
UDIMM Memory Slot
Frequency
(Mhz)
A1 A2 B1 B2
- SR - - 2933
- DR - - 2667
- SR - SR 2667
- DR - DR 2667
SR SR SR SR 2667
SR/DR DR SR/DR DR 2667
SR/DR SR/DR SR/DR SR/DR 2133-2400
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24
e DIMM only ts in one correct orientation. It will cause permanent damage to
the motherboard and the DIMM if you force the DIMM into the slot at incorrect
orientation.
1
2
3
B450M Pro4
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2.4 Expansion Slots (PCI Express Slots)
ere are 3 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE3 (PCIe 2.0 x16 slot) is used for PCI Express x4 lane width graphics cards.
PCIe Slot Congurations
Before installing an expansion card, please make sure that the power supply is
switched o or the power cord is unplugged. Please read the documentation of the
expansion card and make necessary hardware settings for the card before you start
the installation.
PCIE1 PCIE2 PCIE3
Ryzen Series CPUs (Matisse) x1 x16 x4
Ryzen Series CPUs (Pinnacle Ridge) x1 x16 x4
Ryzen Series CPUs (Picasso) x1 x8 x4
Ryzen Series CPUs (Summit Ridge) x1 x16 x4
Ryzen Series CPUs (Raven Ridge) x1 x8 x4
Athlon series APU x1 x4 x4
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2.5 Jumpers Setup
e illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is
“Open”.
Clear CMOS Jumper
(CLRCMOS1)
(see p.7, No. 18)
Short: Clear CMOS
Open: Default
CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the system
parameters to default setup, please turn o the computer and unplug the power
cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to
short the pins on CLRCMOS1 for 5 seconds. However, please do not clear the
CMOS right aer you update the BIOS. If you need to clear the CMOS when you
just nish updating the BIOS, you must boot up the system rst, and then shut it
down before you do the clear-CMOS action. Please be noted that the password,
date, time, and user default prole will be cleared only if the CMOS battery is
removed. Please remember toremove the jumper cap aer clearing the CMOS.
If you clear the CMOS, the case open may be detected. Please adjust the BIOS option
“Clear Status” to clear the record of previous chassis intrusion status.
2-pin Jumper
B450M Pro4
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2.6 Onboard Headers and Connectors
System Panel Header
(9-pin PANEL1)
(see p.7, No. 13)
Connect the power
switch, reset switch and
system status indicator on
the chassis to this header
according to the pin
assignments below. Note
the positive and negative
pins before connecting
the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may congure the way to
turn o your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset switch to restart
the computer if the computer freezes and fails to perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. e LED is on when
the system is operating. e LED keeps blinking when the system is in S3 sleep state.
e LED is o when the system is in S4 sleep state or powered o (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. e LED is on when
the hard drive is reading or writing data.
e front panel design may dier by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard drive activity LED, speaker and etc.
When connecting your chassis front panel module to this header, make sure the wire
assignments and the pin assignments are matched correctly.
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over
these headers and connectors. Placing jumper caps over the headers and connectors
will cause permanent damage to the motherboard.
GND
R ESET#
P WRBTN#
P LED-
P LED+
GND
H DLED-
H DLED+
1
GND
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Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.7, No. 14)
Please connect the
chassis power LED and
the chassis speaker to this
header.
Serial ATA3 Connectors
(SATA3_1:
see p.7, No. 12) (Upper)
(SATA3_2:
see p.7, No. 11) (Lower)
(SATA3_3:
see p.7, No. 9) (Upper)
(SATA3_4:
see p.7, No. 10) (Lower)
ese four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
* M2_2 and SATA3_3
share lanes. If either one
of them is in use, the other
one will be disabled.
USB 2.0 Headers
(9-pin USB_3_4)
(see p.7, No. 20)
(9-pin USB_5_6)
(see p.7, No. 19)
ere are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
USB 3.2 Gen1 Header
(19-pin USB3_56)
(see p.7 or 8, No. 8)
ere is one header on
this motherboard. Each
USB 3.2 Gen1 header can
support two ports.
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.7, No. 25)
is header is for
connecting audio devices
to the front audio panel.
1
+5V
DUMMY
PLED+
PLED+
PLED-
DUMMY
SPEAKER
DUMMY
GND
GND
P+
P-
USB_PWR
P+
P-
USB_PWR
1
SATA3_3
SATA3_4
SATA3_1
SATA3_2
J _SENSE
O UT2_L
1
M IC_RET
P RESENCE#
GN D
O UT2_R
M IC2_R
M IC2_L
OUT_RET
1
IntA_ PB_D +
Dummy
IntA_ PB_D -
GND
IntA_ PB_S ST X +
GND
IntA_ PB_S ST X -
IntA_ PB_S SR X +
IntA_ PB_S SR X -
VbusVbus
Vbus
IntA_ PA_S SR X -
IntA_ PA_S SR X +
GND
IntA_ PA_S ST X -
IntA_ PA_S ST X +
GND
IntA_ PA_D -
IntA_ PA_D +
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GND
FAN_VOLTAGE_ CONTROL
FAN_SPEE D
FAN_SPEE D_CONTROL
GND
FAN_VOLTAGE_ CONTROL
FAN_SPEE D
FAN_SPEE D_CONTROL
GND
FAN_VOLTAGE_ CONTROL
FAN_SPEE D
FAN_SPEE D_CONTROL
Chassis/Water Pump Fan
Connectors
(4-pin CHA_FAN1/WP)
(see p.7, No. 26)
(4-pin CHA_FAN2/WP)
(see p.7, No. 16)
(4-pin CHA_FAN3/WP)
(see p.7, No. 17)
is motherboard
provides three 4-Pin water
cooling
chassis
fan
connectors. If you plan to
connect a 3-Pin
chassis
water cooler fan, please
connect it to Pin 1-3.
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.7, No. 3)
is motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
CPU/Water Pump Fan
Connector
(4-pin CPU_FAN2/WP)
(see p.7, No. 2)
is motherboard
provides a 4-Pin water
cooling CPU fan
connector. If you plan
to connect a 3-Pin CPU
water cooler fan, please
connect it to Pin 1-3.
1. High Denition Audio supports Jack Sensing, but the panel wire on the chassis must
support HDA to function correctly. Please follow the instructions in our manual and
chassis manual to install your system.
2. If you use an AC’97 audio panel, please install it to the front panel audio header by
the steps below:
A. Connect Mic_IN (MIC) to MIC2_L.
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for the HD audio panel only. You don’t need to
connect them for the AC’97 audio panel.
E. To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel
and adjust “Recording Volume”.
FAN_VOLTAGE
GND
FAN_SPEED
FAN_SPEED_CONTROL
1
2
3
4
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ATX Power Connector
(24-pin ATXPWR1)
(see p.7, No. 7)
is motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
ATX 12V Power
Connector
(8-pin ATX12V1)
(see p.7, No. 1)
is motherboard
provides a 8-pin ATX 12V
power connector. To use a
4-pin ATX power supply,
please plug it along Pin 1
and Pin 5.
Serial Port Header
(9-pin COM1)
(see p.7, No. 21)
is COM1 header
supports a serial port
module.
Chassis Intrusion Header
(2-pin CI1)
(see p.7, No. 15)
is motherboard
supports CASE OPEN
detection feature that
detects if the chassis cove
has been removed. is
feature requires a chassis
with chassis intrusion
detection design.
TPM Header
(17-pin TPMS1)
(see p.7, No. 22)
is connector supports
Trusted Platform Module
(TPM) system, which can
securely store keys, digital
certicates, passwords,
and data. A TPM system
also helps enhance
network security, protects
digital identities, and
ensures platform integrity.
12
1
24
13
5
1
8
4
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
1
GN D
SMB_DATA_MAIN
LAD2
LAD1
GN D
S_PWRDWN #
SERIRQ #
GN
D
P CICL K
P CIRST #
LAD3
+3V
LAD0
+3VS B
GN D
FRAM E
SMB_CLK_MAIN
1
Signal
GND
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AMD FAN LED Header
(4-pin AMD_FAN_
LED1)
(see p.7, No. 6)
AMD FAN LED Header is used
to connect RGB LED
extension cable that comes with
AMD heatsink. e cable
connection allows users to choose
from various LED lighting
eects.
Caution: Never install the FAN
LED cable in the wrong orienta-
tion; otherwise, the cable may
be damaged.
RGB LED Header
(4-pin RGB_LED1)
(see p.7, No. 23)
is header is used to connect
RGB LED extension cable which
allows users to choose from vari-
ous LED lighting eects.
Caution: Never install the RGB
LED cable in the wrong orienta-
tion; otherwise, the cable may
be damaged.
*Please refer to page 51 for fur-
ther instructions on this header.
Addressable LED Header
(3-pin ADDR_LED1)
(see p.7, No. 24)
is header is used to connect
Addressable
LED extension cable
which allows users to choose
from various LED lighting
eects.
Caution: Never install the
Addressable LED cable in the
wrong orientation; otherwise,
the cable may be damaged.
*Please refer to page 52 for fur-
ther instructions on this header.
12V G R B
1
12V G R B
1
VOUT
DO_ADDR
GND
1
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2.7 CrossFireX
TM
and Quad CrossFireX
TM
Operation Guide
is motherboard supports CrossFireX
TM
and Quad CrossFireX
TM
that allows you
to install up to two identical PCI Express x16 graphics cards.
2.7.1 Installing Two CrossFireX
TM
-Ready Graphics Cards
Step 1
Insert one graphics card into PCIE2 slot
and the other graphics card to PCIE3 slot.
Make sure that the cards are properly
seated on the slots.
Step 2
Connect two graphics cards by installing
a CrossFire Bridge on the CrossFire Bridge
Interconnects on the top of the graphics
cards. (e CrossFire Bridge is provided
with the graphics card you purchase, not
bundled with this motherboard. Please
refer to your graphics card vendor for
details.)
1. You should only use identical CrossFireX
TM
-ready graphics cards that are AMD
certied.
2. Make sure that your graphics card driver supports AMD CrossFireX
TM
technology.
Download the drivers from the AMD’s website: www.amd.com
3. Make sure that your power supply unit (PSU) can provide at least the minimum
power your system requires. It is recommended to use a AMD certied PSU. Please
refer to the AMD’s website for details.
4. If you pair a 12-pipe CrossFireX
TM
Edition card with a 16-pipe card, both cards will
operate as 12-pipe cards while in CrossFireX
TM
mode.
5. Dierent CrossFireX
TM
cards may require dierent methods to enable CrossFi-
reX
TM
. Please refer to AMD graphics card manuals for detailed installation guide.
CrossFire Bridge
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Step 3
Connect a VGA/DVI/DP/HDMI cable
from the monitor to the corresponding
port on the graphics card installed to the
PCIE2 slot.
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34
Step 1
Power on your computer and boot into OS.
Step 2
Remove the AMD drivers if you have any VGA drivers installed in your system.
Step 3
Install the required drivers and CATALYST Control Center then restart your
computer. Please check AMD’s website for details.
2.7.2 Driver Installation and Setup
Step 4
Double-click the AMD Catalyst Control
Center icon in the Windows
®
system tray.
Step 5
In the le pane, click Performance and
then AMD CrossFireX
TM
. en select
Enable AMD CrossFireX and click Apply.
Select the GPU number according to your
graphics card and click Apply.
AMD Catalyst Control Center
e Catalyst Uninstaller is an optional download. We recommend using this utility
to uninstall any previously installed Catalyst drivers prior to installation. Please
check AMD’s website for AMD driver updates.
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2.8 M.2_SSD (NGFF) Module Installation Guide (M2_1)
The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and
versatile card edge connector that aims to replace mPCIe and mSATA. The Ultra M.2
Socket (M2_1) supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3
x4 (32 Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or
Gen3 x2 (16 Gb/s) (with Athlon series APU).
Installing the M.2_SSD (NGFF) Module
Step 1
Prepare a M.2_SSD (NGFF) module
and the screw.
Step 2
Depending on the PCB type and
length of your M.2_SSD (NGFF)
module, nd the corresponding nut
location to be used.
No. 1 2 3
Nut Location A B C
PCB Length 4.2cm 6cm 8cm
Module Type Type 2242 Type2260 Type 2280
2
1
3
ABC
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36
Step 3
Move the stando based on the
module type and length.
e stando is placed at the nut
location C by default. Skip Step 3
and 4 and go straight to Step 5 if you
are going to use the default nut.
Otherwise, release the stando by
hand.
Step 4
Peel o the yellow protective lm on
the nut to be used. Hand tighten the
stando into the desired nut location
on the motherboard.
Step 5
Gently insert the M.2 (NGFF) SSD
module into the M.2 slot. Please
be aware that the M.2 (NGFF) SSD
module only ts in one orientation.
ABC
ABC
ABC
ABC
20
o
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Step 6
Tighten the screw with a screwdriver
to secure the module into place.
Please do not overtighten the screw
as this might damage the module.
NUT1NUT2C
M.2_SSD (NGFF) Module Support List
For the latest updates of M.2_SSD (NFGG) module support list, please visit our website
for details: http://www.asrock.com
Vendor Interface P/N
Intel PCIe INTEL 6000P-SSDPEKKF256G7 (nvme)
Intel PCIe INTEL 6000P-SSDPEKKF512G7 (nvme)
Intel PCIe INTEL 600P-SSDPEKKW256G7-256GB (nvme)
Kingston PCIe Kingston SHPM2280P2 / 240G (Gen2 x4)
SanDisk PCIe SanDisk-SD6PP4M-128G(Gen2 x2)
Samsung PCIe Samsung XP941-MZHPU512HCGL(Gen2x4)
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2.9 M.2_SSD (NGFF) Module Installation Guide (M2_2)
The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and
versatile card edge connector that aims to replace mPCIe and mSATA. e M.2 Socket
(M2_2) supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module.
* M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be
disabled.
Installing the M.2_SSD (NGFF) Module
Step 1
Prepare a M.2_SSD (NGFF) module
and the screw.
Step 2
Depending on the PCB type and
length of your M.2_SSD (NGFF)
module, nd the corresponding nut
location to be used.
No. 1 2 3 4
Nut Location A B C D
PCB Length 3cm 4.2cm 6cm 8cm
Module Type Type2230 Type 2242 Type2260 Type 2280
3
2
4
5
BCDE
A
1
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Step 3
Move the stando based on the
module type and length.
e stando is placed at the nut
location D by default. Skip Step 3 and
4 and go straight to Step 5 if you are
going to use the default nut.
Otherwise, release the stando by
hand.
BCD
E
A
Step 4
Peel o the yellow protective lm on
the nut to be used. Hand tighten the
stando into the desired nut location
on the motherboard.
Step 5
Gently insert the M.2 (NGFF) SSD
module into the M.2 slot. Please
be aware that the M.2 (NGFF) SSD
module only ts in one orientation.
NUT1NUT2D
E
Step 6
Tighten the screw with a screwdriver
to secure the module into place.
Please do not overtighten the screw as
this might damage the module.
BCD
E
A
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Vendor Interface P/N
ADATA SATA ADATA - AXNS381E-128GM-B
Crucial SATA Crucial-CT240M500SSD4-240GB
EZLINK SATA EZLINK P51B-80-120GB
Intel SATA INTEL 540S-SSDSCKKW240H6-240GB
Kingston SATA Kingston-RBU-SNS8400S3 / 180GD
Kingston SATA Kingston SM2280S3G2/120G - Win8.1
LITEON SATA LITEON LJH-256V2G-256GB (2260)
PLEXTOR SATA PLEXTOR PX-128M7VG-128GB
PLEXTOR SATA PLEXTOR PX-128M6G-2260-128GB
SanDisk SATA SanDisk-SD6SN1M-128G
SanDisk SATA SanDisk X400-SD8SN8U-128G
SanDisk SATA Sandisk Z400s-SD8SNAT-128G-1122
Transcend SATA Transcend TS256GMTS800-256GB
Transcend SATA Transcend TS64GMTS400-64GB
V-Color SATA V-Color 120G
V-Color SATA V-Color 240G
WD SATA WD BLUE WDS100T1B0B-00AS40
WD SATA WD GREEN WDS240G1G0B-00RC30
M.2_SSD (NGFF) Module Support List
For the latest updates of M.2_SSD (NFGG) module support list, please visit our website
for details: http://www.asrock.com
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Chapter 3 Software and Utilities Operation
3.1 Installing Drivers
e Support CD that comes with the motherboard contains necessary drivers and
useful utilities that enhance the motherboard’s features.
Running The Support CD
To begin using the support CD, insert the CD into your CD-ROM drive. e CD
automatically displays the Main Menu if “AUTORUN” is enabled in your computer.
If the Main Menu does not appear automatically, locate and double click on the le
“ASRSETUP.EXE” in the Support CD to display the menu.
Drivers Menu
e drivers compatible to your system will be auto-detected and listed on the
support CD driver page. Please click Install All or follow the order from top to
bottom to install those required drivers. erefore, the drivers you install can work
properly.
Utilities Menu
e Utilities Menu shows the application soware that the motherboard supports.
Click on a specic item then follow the installation wizard to install it.
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3.2 A-Tuning
A-Tuning is ASRock’s multi purpose soware suite with a new interface, more new
features and improved utilities.
3.2.1 Installing A-Tuning
A-Tuning can be downloaded from ASRock Live Update & APP Shop. Aer the
installation, you will nd the icon “A-Tuning“ on your desktop. Double-click the “A-
Tuning“ icon, A-Tuning main menu will pop up.
3.2.2 Using A-Tuning
ere are ve sections in A-Tuning main menu: Operation Mode, OC Tweaker,
System Info, FAN-Tastic Tuning and Settings.
Operation Mode
Choose an operation mode for your computer.
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OC Tweaker
Congurations for overclocking the system.
System Info
View information about the system.
*e System Browser tab may not appear for certain models.
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44
FAN-Tastic Tuning
Congure up to ve dierent fan speeds using the graph. e fans will automatically shi
to the next speed level when the assigned temperature is met.
Settings
Congure ASRock A-Tuning. Click to select "Auto run at Windows Startup" if you
want A-Tuning to be launched when you start up the Windows operating system.
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3.3 ASRock Live Update & APP Shop
e ASRock Live Update & APP Shop is an online store for purchasing and
downloading soware applications for your ASRock computer. You can quickly and
easily install various apps and support utilities. With ASRock Live Update & APP
Shop, you can optimize your system and keep your motherboard up to date simply
with a few clicks.
Double-click on your desktop to access ASRock Live Update & APP Shop
utility.
*You need to be connected to the Internet to download apps from the ASRock Live Update & APP Shop.
3.3.1 UI Overview
Category Panel: e category panel contains several category tabs or buttons that
when selected the information panel below displays the relative information.
Information Panel: e information panel in the center displays data about the
currently selected category and allows users to perform job-related tasks.
Hot News: e hot news section displays the various latest news. Click on the image
to visit the website of the selected news and know more.
Information Panel
Hot News
Category Panel
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3.3.2 Apps
When the "Apps" tab is selected, you will see all the available apps on screen for you
to download.
Installing an App
Step 1
Find the app you want to install.
e most recommended app appears on the le side of the screen. e other various
apps are shown on the right. Please scroll up and down to see more apps listed.
You can check the price of the app and whether you have already intalled it or not.
- e red icon displays the price or "Free" if the app is free of charge.
- e green "Installed" icon means the app is installed on your computer.
Step 2
Click on the app icon to see more details about the selected app.
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Step 3
If you want to install the app, click on the red icon to start downloading.
Step 4
When installation completes, you can nd the green "Installed" icon appears on the
upper right corner.
To uninstall it, simply click on the trash can icon .
*e trash icon may not appear for certain apps.
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Upgrading an App
You can only upgrade the apps you have already installed. When there is an
available new version for your app, you will nd the mark of "New Version"
appears below the installed app icon.
Step 1
Click on the app icon to see more details.
Step 2
Click on the yellow icon to start upgrading.
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3.3.3 BIOS & Drivers
Installing BIOS or Drivers
When the "BIOS & Drivers" tab is selected, you will see a list of recommended or
critical updates for the BIOS or drivers. Please update them all soon.
Step 1
Please check the item information before update. Click on to see more details.
Step 2
Click to select one or more items you want to update.
Step 3
Click Update to start the update process.
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3.3.4 Setting
In the "Setting" page, you can change the language, select the server location, and
determine if you want to automatically run the ASRock Live Update & APP Shop
on Windows startup.
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3.4 ASRock Polychrome RGB
ASRock Polychrome RGB is a lighting control utility specically designed for unique individuals
with sophisticated tastes to build their own stylish colorful lighting system. Simply by connect-
ing the LED strip, you can customize various lighting schemes and patterns, including Static,
Breathing, Strobe, Cycling, Music, Wave and more.
Connecting the LED Strip
Connect your RGB LED strips to the
RGB LED Header
(
RGB_HEADER1)
on the
motherboard.
RGB_HEADER1
1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable
may be damaged.
2. Before installing or removing your RGB LED cable, please power o your system
and unplug the power cord from the power supply. Failure to do so may cause dam-
ages to motherboard components.
1. Please note that the RGB LED strips do not come with the package.
2. e RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a
maximum power rating of 3A (12V) and length within 2 meters.
1
2
V
G
R
B
1
12V G R B
1
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Connecting the Addressable RGB LED Strip
Connect your Addressable RGB LED strip to the Addressable LED Header (ADDR_LED1) on
the motherboard.
ADDR_LED1
1
1. Never install the RGB LED cable in the wrong orientation; otherwise, the cable
may be damaged.
2. Before installing or removing your RGB LED cable, please power o your system
and unplug the power cord from the power supply. Failure to do so may cause dam-
ages to motherboard components.
1. Please note that the RGB LED strips do not come with the package.
2. e RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/
GND), with a maximum power rating of 3A (5V) and length within 2 meters.
VOUT
DO_ADDR
GND
1
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ASRock Polychrome RGB Utility
Now you can adjust the RGB LED color through the ASRock Polychrome RGB utility.
Download this utility from the ASRock Live Update & APP Shop and start coloring your
PC style your way!
Toggle on/o the
RGB LED switch
Sync RGB LED eects
for all LED regions of
the motherboard
Select a RGB LED light eect
from the drop-down menu.
Drag the tab to customize your
preference.
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Chapter 4 UEFI SETUP UTILITY
4.1 Introduction
is section explains how to use the UEFI SETUP UTILITY to congure your
system. You may run the UEFI SETUP UTILITY by pressing <F2> or <Del> right
aer you power on the computer, otherwise, the Power-On-Self-Test (POST) will
continue with its test routines. If you wish to enter the UEFI SETUP UTILITY aer
POST, restart the system by pressing <Ctl> + <Alt> + <Delete>, or by pressing the
reset button on the system chassis. You may also restart by turning the system o
and then back on.
4.1.1 UEFI Menu Bar
e top of the screen has a menu bar with the following selections:
Main
For setting system time/date information
OC Tweaker
For overclocking congurations
Advanced
For advanced system congurations
Tool
Useful tools
H/W Monitor
Displays current hardware status
Security
For security settings
Boot
For conguring boot settings and boot priority
Exit
Exit the current screen or the UEFI Setup Utility
Because the UEFI soware is constantly being updated, the following UEFI setup
screens and descriptions are for reference purpose only, and they may not exactly
match what you see on your screen.
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4.1.2 Navigation Keys
Use < > key or < > key to choose among the selections on the menu bar, and
use < > key or < > key to move the cursor up or down to select items, then
press <Enter> to get into the sub screen. You can also use the mouse to click your
required item.
Please check the following table for the descriptions of each navigation key.
Navigation Key(s) Description
+ / -
To change option for the selected items
<Tab>
Switch to next function
<PGUP>
Go to the previous page
<PGDN>
Go to the next page
<HOME>
Go to the top of the screen
<END>
Go to the bottom of the screen
<F1>
To display the General Help Screen
<F7>
Discard changes and exit the SETUP UTILITY
<F9>
Load optimal default values for all the settings
<F10>
Save changes and exit the SETUP UTILITY
<F12>
Print screen
<ESC>
Jump to the Exit Screen or exit the current screen
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4.2 Main Screen
When you enter the UEFI SETUP UTILITY, the Main screen will appear and
display the system overview.
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4.3 OC Tweaker Screen
In the OC Tweaker screen, you can set up overclocking features.
CPU Conguration
OC Mode Change Switch
Select a setting for OC Mode.
Overclock Mode
Select the overclock mode.
CPU Frequency and Voltage Change
If this item is set to [Manual], the multiplier and voltage will be set based on user selection.
Final result is depending on the CPU's capability.
SMT Mode
is item can be used to disable symmetric multithreading. To re-enable SMT, a
power cycle is needed aer selecting [Auto].
Warning: S3 is not supported on systems where SMT is disabled.
Because the UEFI soware is constantly being updated, the following UEFI setup
screens and descriptions are for reference purpose only, and they may not exactly
match what you see on your screen.
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DRAM Timing Conguration
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically.
AM4 Advance Boot Training
Set TR4 Advance boot training to [Auto] to increase compatibility.
Voltage Conguration
CPU SOC Voltage
Congure the voltage for the CPU SOC.
Vcore Oset Voltage
Use this to select Vcore Oset Voltage.
Vcore NB Oset Voltage
Use this to select Vcore NB Oset Voltage.
DRAM Voltage
Use this to select DRAM Voltage. e default value is [Auto].
1.8 Voltage
Use this to select 1.8 Voltage. e default value is [Auto].
VDDP
Congure the voltage for the VDDP.
Save User Default
Type a prole name and press enter to save your settings as user default.
Load User Default
Load previously saved user defaults.
Save User UEFI Setup Prole to Disk
It helps you to save current UEFI settings as an user prole to disk.
Load User UEFI Setup Prole from Disk
You can load previous saved prole from the disk.
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4.4 Advanced Screen
In this section, you may set the congurations for the following items: CPU
Conguration, North Bridge Conguration, South Bridge Conguration, Storage-
Conguration, Super IO Conguration, ACPI Conguration, Trusted Computing ,
AMD CBS and AMD PBS.
UEFI Conguration
Active Page on Entry
Select the default page when entering the UEFI setup utility.
Full HD UEFI
When [Auto] is selected, the resolution will be set to 1920 x 1080 if the monitor
supports Full HD resolution. If the monitor does not support Full HD resolution,
then the resolution will be set to 1024 x 768. When [Disable] is selected, the
resolution will be set to 1024 x 768 directly.
Setting wrong values in this section may cause the system to malfunction.
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4.4.1 CPU Conguration
Cool 'n' Quiet
Use this item to enable or disable AMD’s Cool ‘n’ Quiet
TM
technology. e default value is
[Enabled]. Conguration options: [Enabled] and [Disabled]. If you install Windows
®
OS and
want to enable this function, please set this item to [Enabled]. Please note that enabling this
function may reduce CPU voltage and memory frequency, and lead to system stability or
compatibility issue with some memory modules or power supplies. Please set this item to
[Disable] if above issue occurs.
AMD fTPM Switch
Use this to enable or disable AMD CPU fTPM.
SVM Mode
When this option is set to [Enabled], a VMM (Virtual Machine Architecture) can
utilize the additional hardware capabilities provided by AMD-V. e default value is
[Enabled]. Conguration options: [Enabled] and [Disabled].
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4.4.2 North Bridge Conguration
SR-IOV Support
Enable/disable the SR-IOV (Single Root IO Virtualization Support) if the system
has SR-IOV capable PCIe devices.
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4.4.3 South Bridge Conguration
Onboard HD Audio
Enable/disable onboard HD audio. Set to Auto to enable onboard HD audio and
automatically disable it when a sound card is installed.
Front Panel
Enable/disable front panel HD audio.
Deep Sleep
Congure deep sleep mode for power saving when the computer is shut down.
Restore on AC/Power Loss
Select the power state aer a power failure. If [Power O] is selected, the power will
remain o when the power recovers. If [Power On] is selected, the system will start
to boot up when the power recovers.
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4.4.4 Storage Conguration
SATA Controller(s)
Enable/disable the SATA controllers.
SATA Mode
AHCI: Supports new features that improve performance.
RAID: Combine multiple disk drives into a logical unit.
SATA Hot Plug
Enable/disable the SATA Hot Plug function.
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4.4.5 Super IO Conguration
Serial Port
Enable or disable the Serial port.
Serial Port Address
Select the address of the Serial port.
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4.4.6 ACPI Conguration
Suspend to RAM
It is recommended to select auto for ACPI S3 power saving.
ACPI HPET Table
Enable the High Precision Event Timer for better performance and to pass WHQL
tests.
PS/2 Keyboard Power On
Allow the system to be waked up by a PS/2 Keyboard.
PCIE Devices Power On
Allow the system to be waked up by a PCIE device and enable wake on LAN.
RTC Alarm Power On
Allow the system to be waked up by the real time clock alarm. Set it to By OS to let
it be handled by your operating system.
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4.4.7 Trusted Computing
Security Device Support
Enable to activate Trusted Platform Module (TPM) security for your hard disk
drives.
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4.4.8 AMD CBS
Zen Common Options
RedirectForReturnDis
From a workaround for GCC/C000005 issue for XV Core on CZ A0, setting MSRC001_1029
Decode Conguration (DE_CFG) bit 14 [DecfgNoRdrctForReturns] to 1.
L2 TLB Associativity
0 - L2 TLB ways [11:8] are fully associative. 1 - =L2 TLB ways [11:8] are 4K-only.
Platform rst Error Handling
Enable/disable PFEH, cloak individual banks, and mask deferred error interrupts from each
bank.
Core Performance Boost
Disable CPB.
Enable IBS
Enables IBS through MSRC001_1005[42] and disables SpecLockMap through
MSRC001_1020[54].
Global C-state Control
Controls IO based C-state generation and DF C-states.
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Opcache Control
Enables or disables the Opcache.
OC Mode
OC1 - 16 cores/3.6GHz on 1.3375V
OC2 - 8 cores/3.7GHz on 1.369V
OC3 - 4 cores/3.75GHz on 1.374V\nMax Stress - 16 cores/3.8GHz on 1.400V
SEV-ES ASID Space Limit
SEV VMs using ASIDs below the SEV-ES ASID Space Limit must enable the SEV-ES feature.
e valid values for this eld are from 0x1 (1) - 0x10 (16).
Core/Thread Enablement
Downcore control
Sets the number of cores to be used. Once this option has been used to remove any cores, a
POWER CYCLE is required in order for future selections to take eect.
SMTEN
is item can be used to disable symmetric multithreading. To re-enable SMT, a POWER
CYCLE is needed aer selecting the 'Auto' option.
Warning: S3 is NOT SUPPORTED on systems where SMT is disabled.
Streaming Stores Control
Enables or disables the streaming stores functionality.
DF Common Options
DRAM scrub time
Provide a value that is the number of hours to scrub memory.
Redirect scrubber control
Control DF::RedirScrubCtrl[EnRedirScrub]
Disable DF sync ood propagation
Control DF::PIECong[DisSyncFloodProp].
Freeze DF module queues on error
Controls DF::PIECong[DisImmSyncFloodOnFatalError]
Disabling this option sets DF:PIECong[DisImmSyncFloodOnFatalError].
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GMI encryption control
GMI encryption control
Control GMI link encryption
xGMI encryption control
Control xGMI link encryption
CC6 memory region encryption
Control whether or not the CC6 save/restore memory is encrypted
Location of private memory regions
Controls whether or not the private memory regions (PSP, SMU and CC6) are at the top of
DRAM or distributed. Note that distributed requires memory on all dies. Note that it will
always be at the top of DRAM if some dies don't have memory regardless of this option's
setting.
System probe lter
Controls whether or not the probe lter is enabled. Has no eect on parts where the probe
lter is fuse disabled.
Memory interleaving
Controls fabric level memory interleaving (AUTO, none, channel, die, socket). Note that
channel, die, and socket has requirements on memory populations and it will be ignored if
the memory doesn't support the selected option.
Memory interleaving size
Controls the memory interleaving size. e valid values are AUTO, 256 bytes, 512 bytes, 1
Kbytes or 2Kbytes. is determines the starting address of the interleave (bit 8, 9, 10 or 11).
Channel interleaving hash
Controls whether or not the address bits are hashed during channel interleave mode. is
eld should not be used unless the interleaving is set to channel and the interleaving size is
256 or 512 bytes.
Memory Clear
When this feature is disabled, BIOS does not implement MemClear aer memory training
(only if non-ECC DIMMs are used).
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UMC Common Options
DDR4 Common Options
DRAM Controller Conguration
DRAM Controller Conguration
DRAM Power Options
Cmd2T
Select between 1T and 2T mode on ADDR/CMD
Gear Down Mode
Congure the Gear Down Mode.
CAD Bus Conguration
CAD Bus Timing User Controls
Setup time on CAD bus signals to Auto or Manual
CAD Bus Drive Strength User Controls
Drive Strength on CAD bus signals to Auto or Manual
Data Bus Conguration
Data Bus Conguration User Controls
Specify the mode for drive strength to Auto or Manual
Common RAS
Data Poisoning
Enable/disable data poisoning: UMC_CH::EccCtrl[UcFatalEn] UMC_
CH::EccCtrl[WrEccEn]
Should be enabled/disabled together.
Security
TSME
Transparent SME: AddrTweakEn = 1; ForceEncrEn =1; DataEncrEn = 0
Data Scramble
Data scrambling: DataScrambleEn
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DRAM Memory Mapping
Chipselect Interleaving
Interleave memory blocks across the DRAM chip selects for node 0.
BankGroupSwap
Congure the BankGroupSwap.
BankGroupSwapAlt
Congure BankGroupSwapAlt.
Address Hash Bank
Congure the bank address hashing.
Address Hash CS
Congure the CS address hashing.
NVDIMM
Memory MBIST
MBIST Enable
Congure the Memory MBIST.
MBIST SubType Test
Select MBIST Subtest - Single Chipselect, Multi Chipselect, Address Line Test or execute
All test
MBIST Aggressors
Enable or disable MBIST Aggressor test.
MBIST Per Bit Slave Die Reporting
Enable or disable MBIST per bit slave die result report.
NBIO Common Options
NB Conguration
IOMMU
Use this to enable or disable IOMMU. e default value of this feature is [Disabled].
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Determinism Slider
[Auto]
Use default performance determinism settings
cTDP Control
[Auto]
Use the fused cTDP.
[Manual]
User can set customized cTDP.
Fan Control
[Auto]
Use the default fan controller settings.
[Manual]
User can set customized fan controller settings.
PSI
Disable PSI.
ACS Enable
Enable ACS.
PCIe ARI Support
Enables Alternative Routing-ID Interpretation
CLDO_VDDP Control
[Manual]
If this option is selected, user can set customized CLDO_VDDP voltage.
HD Audio Enable
Enable HD Audio.
FCH Common Options
SATA Conguration Options
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SATA Controller
Disable or enable OnChip SATA controller
Sata RAS Support
Disable or enable Sata RAS Support
Sata Disabled AHCI Prefetch Function
Congure the Sata Disabled AHCI Prefetch function.
Aggresive SATA Device Sleep Port 0
Congure the Aggresive SATA Device Sleep Port 0.
Aggresive SATA Device Sleep Port 1
Congure the Aggresive SATA Device Sleep Port 1.
USB Conguration Options
XHCI controller enable
Congure the USB3 controller.
SD (Secure Digital) Options
SD Conguration Mode
Select SD Mode.
Ac Power Loss Options
Select Ac Loss Control Method.
I2C Conguration Options
Uart Conguration Options
ESPI Conguration Options
XGBE Conguration Options
eMMC Options
NTB Common Options
DRAM Memory Mapping
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Chipselect Interleaving
Interleave memory blocks across the DRAM chip selects for node 0.
BankGroupSwap
Congure the BankGroupSwap.
BankGroupSwapAlt
Congure the BankGroupSwapAlt.
Address Hash Bank
Congure the bank address hashing.
Address Hash CS
Congure the CS address hashing.
NVDIMM
Memory MBIST
MBIST Enable
Congure the Memory MBIST.
MBIST SubType Test
Select MBIST Subtest - Single Chipselect, Multi Chipselect, Address Line Test or execute
all test.
MBIST Aggressors
Congure the MBIST Aggressor test.
MBIST Per Bit Slave Die Reporting
Congure the MBIST per bit slave die result report.
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4.4.9 AMD PBS
e AMD PBS menu accesses AMD specic features.
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4.5 Tools
RGB LED
ASRock Polychrome RGB allows you to adjust the RGB LED color to your liking.
Easy RAID Installer
Easy RAID Installer helps you to copy the RAID driver from the support CD to
your USB storage device. Aer copying the drivers please change the SATA mode to
RAID, then you can start installing the operating system in RAID mode.
Easy Driver Installer
For users that don’t have an optical disk drive to install the drivers from our support
CD, Easy Driver Installer is a handy tool in the UEFI that installs the LAN driver
to your system via an USB storage device, then downloads and installs the other
required drivers automatically.
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Instant Flash
Save UEFI les in your USB storage device and run Instant Flash to update your
UEFI.
Internet Flash - DHCP (Auto IP), Auto
ASRock Internet Flash downloads and updates the latest UEFI rmware version
from our servers for you. Please setup network conguration before using Internet
Flash.
*For BIOS backup and recovery purpose, it is recommended to plug in your USB
pen drive before using this function.
Network Conguration
Use this to congure internet connection settings for Internet Flash.
Internet Setting
Enable or disable sound eects in the setup utility.
UEFI Download Server
Select a server to download the UEFI rmware.
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4.6 Hardware Health Event Monitoring Screen
is section allows you to monitor the status of the hardware on your system,
including the parameters of the CPU temperature, motherboard temperature, fan
speed and voltage.
Fan Tuning
Measure Fan Min Duty Cycle.
Fan-Tastic Tuning
Select a fan mode for CPU Fan 1, or choose Customize to set 5 CPU temperatures and
assign a respective fan speed for each temperature.
CPU_FAN1 Setting
Select a fan mode for CPU Fan 1, or choose Customize to set 5 CPU temperatures
and assign a respective fan speed for each temperature.
CPU_FAN1 Temp Source
Select a fan temperature source for CPU Fan 1.
CPU_FAN2/WP Switch
Select CPU Water Pump mode.
CPU Fan 2 Control Mode
Select PWM mode or DC mode for CPU fan 2.
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CPU Fan 2 Setting
Select a fan mode for CPU Fan 2, or choose Customize to set 5 CPU temperatures
and assign a respective fan speed for each temperature.
CPU Fan 2 Temp Source
Select a fan temperature source for CPU Fan 2.
CHA_FAN1/WP Switch
Select Chassis Fan 1 or Water Pump mode.
Chassis Fan 1 Control Mode
Select PWM mode or DC mode for Chassis Fan 1.
Chassis Fan 1 Setting
Select a fan mode for Chassis Fan 1, or choose Customize to set 5 CPU temperatures
and assign a respective fan speed for each temperature.
Chassis Fan 1 Temp Source
Select a fan temperature source for Chassis Fan 1.
CHA_FAN2/WP Switch
Select Chassis Fan 2 or Water Pump mode.
Chassis Fan 2 Control Mode
Select PWM mode or DC mode for Chassis Fan 2.
Chassis Fan 2 Setting
Select a fan mode for Chassis Fan 2, or choose Customize to set 5 CPU temperatures
and assign a respective fan speed for each temperature.
Chassis Fan 2 Temp Source
Select a fan temperature source for Chassis Fan 2.
CHA_FAN3/WP Switch
Select Chassis Fan 3 or Water Pump mode.
Chassis Fan 3 Control Mode
Select PWM mode or DC mode for Chassis Fan 3.
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Chassis Fan 3 Setting
Select a fan mode for Chassis Fan 3, or choose Customize to set 5 CPU temperatures
and assign a respective fan speed for each temperature.
Chassis Fan 3 Temp Source
Select a fan temperature source for Chassis Fan 3.
Case Open Feature
Enable or disable Case Open Feature to detect whether the chassis cover has been
removed.
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4.7 Security Screen
In this section you may set or change the supervisor/user password for the system.
You may also clear the user password.
Supervisor Password
Set or change the password for the administrator account. Only the administrator
has authority to change the settings in the UEFI Setup Utility. Leave it blank and
press enter to remove the password.
User Password
Set or change the password for the user account. Users are unable to change the
settings in the UEFI Setup Utility. Leave it blank and press enter to remove the
password.
Secure Boot
Enable to support Secure Boot.
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4.8 Boot Screen
is section displays the available devices on your system for you to congure the
boot settings and the boot priority.
Fast Boot
Fast Boot minimizes your computer's boot time. In fast mode you may not boot
from an USB storage device.
Boot From Onboard LAN
Allow the system to be waked up by the onboard LAN.
Setup Prompt Timeout
Congure the number of seconds to wait for the setup hot key.
Bootup Num-Lock
Select whether Num Lock should be turned on or o when the system boots up.
Boot Beep
Select whether the Boot Beep should be turned on or o when the system boots up. Please
note that a buzzer is needed.
Full Screen Logo
Enable to display the boot logo or disable to show normal POST messages.
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AddOn ROM Display
Enable AddOn ROM Display to see the AddOn ROM messages or congure the
AddOn ROM if you've enabled Full Screen Logo. Disable for faster boot speed.
CSM (Compatibility Support Module)
CSM
Enable to launch the Compatibility Support Module. Please do not disable unless
you’re running a WHCK test.
Launch PXE OpROM Policy
Select UEFI only to run those that support UEFI option ROM only. Select Legacy
only to run those that support legacy option ROM only. Select Do not launch to not
execute both legacy and UEFI option ROM.
Launch Storage OpROM Policy
Select UEFI only to run those that support UEFI option ROM only. Select Legacy
only to run those that support legacy option ROM only. Select Do not launch to not
execute both legacy and UEFI option ROM.
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4.9 Exit Screen
Save Changes and Exit
When you select this option the following message, “Save conguration changes
and exit setup?” will pop out. Select [OK] to save changes and exit the UEFI SETUP
UTILITY.
Discard Changes and Exit
When you select this option the following message, “Discard changes and exit
setup?” will pop out. Select [OK] to exit the UEFI SETUP UTILITY without saving
any changes.
Discard Changes
When you select this option the following message, “Discard changes?” will pop
out. Select [OK] to discard all changes.
Load UEFI Defaults
Load UEFI default values for all options. e F9 key can be used for this operation.
Launch EFI Shell from lesystem device
Copy shellx64.e to the root directory to launch EFI Shell.
Contact Information
If you need to contact ASRock or want to know more about ASRock, you’re welcome
to visit ASRock’s website at http://www.asrock.com; or you may contact your dealer
for further information. For technical questions, please submit a support request
form at https://event.asrock.com/tsd.asp
ASRock Incorporation
2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District,
Taipei City 112, Taiwan (R.O.C.)
ASRock EUROPE B.V.
Bijsterhuizen 11-11
6546 AR Nijmegen
e Netherlands
Phone: +31-24-345-44-33
Fax: +31-24-345-44-38
ASRock America, Inc.
13848 Magnolia Ave, Chino, CA91710
U.S.A.
Phone: +1-909-590-8308
Fax: +1-909-590-1026
DECLARATION OF CONFORMITY
Per FCC Part 2 Section 2.1077(a)
Responsible Party Name:
ASRock Incorporation
Address:
13848 Magnolia Ave, Chino, CA91710
+1-909-590-8308/+1-909-590-1026
Phone/Fax No:
hereby declares that the product
Product Name : Motherboard
Model Number :
Conforms to the following specications:
FCC Part 15, Subpart B, Unintentional Radiators
Supplementary Information:
is device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) is device may not cause harmful interference,
and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Representative Person’s Name:
James
Signature :
Date :
May 12, 2017
B450M Pro4
EU Declaration of Conformity
For the following equipment:
Motherboard
(Product Name)
B450M Pro4 / ASRock
(Model Designation / Trade Name)
ASRock Incorporation
(Manufacturer Name)
2F., No.37, Sec. 2, Jhongyang S. Rd., Beitou District, Taipei City 112, Taiwan (R.O.C.)
(Manufacturer Address)
ASRock EUROPE B.V.
(Company Name)
Bijsterhuizen 1111 6546 AR Nijmegen e Netherlands
(Company Address)
Person responsible for making this declaration:
(Name, Surname)
A.V.P
(Position / Title)
July 6, 2018
(Date)
P/N: 15G062108002AK V1.1
EMC
—
Directive 2014/30/EU (from April 20th, 2016)
☐ EN 55022:2010/AC:2011 Class B EN 55024:2010/A1:2015
ڛ EN 55032:2012+AC:2013 Class B ڛ
ڛ
EN 61000-3-3:2013
ڛ EN 61000-3-2:2014
ڛ
LVD —Directive 2014/35/EU (from April 20th, 2016)
EN 60950-1 : 2011+ A2: 2013 ☐
☐
EN 60950-1 : 2006/A12: 2011
ڛ RoHS
—
Directive 2011/65/EU
ڛ CE marking
(EU conformity marking)
☐
