X370 Pro4 - Motherboard ASROCK - Free user manual and instructions

Product Type	Motherboard
Brand	ASRock
Model	X370 Pro4
Form Factor	ATX (305 mm x 244 mm)
Socket	AM4 (Ryzen / A-Series APU)
Chipset	AMD Promontory X370
Memory	4 x DDR4, max 64 GB, dual channel, up to 3200+ MHz (OC)
Expansion Slots	2 x PCIe 3.0 x16 (x16/x4), 4 x PCIe 2.0 x1
Integrated Graphics	AMD Radeon (APU), D-Sub, DVI-D, HDMI outputs, triple monitor
Audio	Realtek ALC892, 7.1 HD channels
Network	Realtek RTL8111GR Gigabit LAN
Storage	6 x SATA3 (6 Gb/s), 1 x Ultra M.2 PCIe 3.0 x4, 1 x M.2 SATA3
Rear USB	2 x USB 2.0, 5 x USB 3.2 Gen1, 1 x USB-C 3.2 Gen1
Required Power	ATX 24-pin + ATX 12V 8-pin
BIOS	AMI UEFI with multilingual graphical interface
Operating System	Windows 10 64-bit
Care	Clean with a dry soft cloth; avoid moisture
Security	Overvoltage and electrostatic discharge protection, TPM header
Spare Parts	Contact ASRock support or an authorized reseller

Frequently Asked Questions - X370 Pro4 ASROCK

What type of processor does this motherboard support?

The ASRock X370 Pro4 motherboard supports AMD Ryzen (Summit Ridge) processors and A-Series (Bristol Ridge) APUs on socket AM4.

What is the maximum amount of RAM supported?

The board supports up to 64 GB of DDR4 memory in dual-channel configuration, with frequencies up to 3200+ MHz when overclocking.

How to update the BIOS?

Download the latest BIOS version from the ASRock website, place it on a FAT32 USB drive, then use the Instant Flash utility in the UEFI BIOS.

Does this motherboard support CrossFire?

Yes, it supports AMD Quad CrossFireX and CrossFireX, but only with Ryzen (Summit Ridge) processors.

What video outputs are available?

The video outputs are D-Sub, DVI-D, and HDMI. They work only with an integrated APU (A-Series).

How to connect an RGB fan?

Use the RGB LED header (RGB_HEADER1) or the AMD fan LED header (AMD_FAN_LED1) to connect compatible RGB strips or fans.

Can I use an NVMe SSD as a boot drive?

Yes, the Ultra M.2 socket (M2_1) supports NVMe PCIe 3.0 x4 SSDs and can be used as a boot drive.

How to clear the CMOS?

Turn off the computer, unplug the power cord, wait 15 seconds, then short pins 2 and 3 of the CLRMOS1 jumper for 5 seconds.

What is the maximum power supported by the CPU_FAN connector?

The CPU_FAN connector supports a fan up to 1 A (12 W).

How to enable 7.1 audio?

Connect an HD audio module to the front panel and install the Realtek driver; then configure multi-channel sound in the Realtek control panel.

USER MANUAL X370 Pro4 ASROCK

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 identification or explanation and to the owners' benefit, without intent to infringe.

Disclaimer:

Specifications 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 fitness for a particular purpose.

In no event shall ASRock, its directors, officers, employees, or agents be liable for any indirect, special, incidental, or consequential damages (including damages for loss of profits, 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.

This 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

The 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: [phone] ext.123 (Standard International call charges apply)

The terms HDMI ^® and HDMI High-Definition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

HIGH-DEFINITION MULTIMEDIA INTERFACE

Motherboard Layout

25 Super I/O RoHS PCIE6 PCIE5 PCIE4 PCIE3 PCIE2 PCIE1 RODS PCIExpress 3.0 CMOS Battery ASROCK X370 Pro4 SOCKET AM4 Front USB 3.0 AMD Promontory X370 M2_1 Ultra M.2 PCIe Gen3 X4 DDR4_A1 (64 bit, 288-pin module) DDR4_A2 (64 bit, 288-pin module) DDR4_B1 (64 bit, 288-pin module) DDR4_B2 (64 bit, 288-pin module) ATXPPWR1 VGA1 HDMI DVI USB 2.2 Gen1 USB 2.2 Gen1 USB 2.2 Gen2 R-USB1 R-USB2 R-USB3 VGA2.0 T-USB1 B-USB2 P92 Keyboard/ Mouse ATXVR1 1 2 3 4 5 6 7 8 9 10 11 12 13 14

No. Description

1 ATX 12V Power Connector (ATX12V1)

2 CPU Fan Connector (CPU_FAN1)

3 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)

4 2 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)

5 AMD Fan LED Header (AMD_FAN_LED1)

6 RGB LED Header (RGB_HEADER1)

7 ATX Power Connector (ATXPWR1)

8 USB 3.2 Gen1 Header (USB3_5_6)

9 SATA3 Connector (SATA3_2)

10 SATA3 Connector (SATA3_1)

11 SATA3 Connector (SATA3_A1)

12 SATA3 Connector (SATA3_A2)

13 SATA3 Connector (SATA3_3)

14 SATA3 Connector (SATA3_4)

15 Power LED and Speaker Header (SPK_PLED1)

16 System Panel Header (PANEL1)

17 Chassis Fan Connector (CHA_FAN2)

18 Chassis Fan Connector (CHA_FAN1)

19 Clear CMOS Jumper (CLRCMOS1)

20 USB 2.0 Header (USB_3_4)

21 USB 2.0 Header (USB_1_2)

22 COM Port Header (COM1)

23 TPM Header (TPMS1)

24 Front Panel Audio Header (HD_AUDIO1)

25 Chassis Fan Connector (CHA_FAN3)

I/O Panel

Diagram showing labeled electronic device ports and connectors, including computer, VGA, USB, and network ports with numbered labels.

No. Description No. Description

1 USB 2.0 Ports (USB12) 8 USB 3.2 Gen1 Ports (USB3_12)
2 DVI-D Port 9 USB 3.2 Gen1 Port (USB31_TA_1)
3 LAN RJ-45 Port* 10 USB 3.2 Gen1 Type-C Port (USB31_TC_1)
4 Line In (Light Blue)** 11 HDMI Port
5 Front Speaker (Lime) ^** 12 D-Sub Port
6 Microphone (Pink)** 13 PS/2 Mouse/Keyboard Port
7 USB 3.2 Gen1 Ports (USB3_34)

* There 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
Off No Link	Off 10Mbps connection
Blinking	Data Activity	Orange	100Mbps connection
On Link	Green	1Gbps connection

**Function of the Audio Ports in 7.1-channel Configuration:

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

Chapter 1 Introduction

Thank you for purchasing ASRock X370 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.

Because the motherboard specifications and the BIOS software might be updated, the content of this manual will be subject to change without notice. In case any modifications 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 specific information about the model you are using. You may find the latest VGA cards and CPU support list on ASRock's website as well. ASRock website http://www.asrock.com.

1.1 Package Contents

• ASRock X370 Pro4 Motherboard (ATX Form Factor)
• ASRock X370 Pro4 Quick Installation Guide
• ASRock X370 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)

1.2 Specifications

Platform

• ATX Form Factor
  • Solid Capacitor design

CPU

• Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge)
• Digi Power design
  • 9 Power Phase design

Chipset

• AMD Promontory X370

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-buffered memory*
- AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, unbuffered memory*
- AMD Ryzen series CPUs (Picasso) support DDR4 2933/2667/2400/2133 non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/2933/2667/2400/2133 non-ECC, un-buffered memory*
- AMD 7 ^th Gen A-Series APUs support DDR4 2400/2133 non-ECC, un-buffered 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 22 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
• 15μ Gold Contact in DIMM Slots

Expansion Slot

AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)

- 2 x PCI Express 3.0 x16 Slots (single at x16 (PCIE2); dual at x16 (PCIE2) / x4 (PCIE4))*

AMD 7 ^th A-Series APUs

- 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x2 (PCIE4))*

AMD Ryzen series CPUs (Picasso, Raven Ridge)

- 2 x PCI Express 3.0 x16 Slots (single at x8 (PCIE2); dual at x8 (PCIE2) / x4 (PCIE4))*

AMD Athlon series CPUs

- 2 x PCI Express 3.0 x16 Slots (single at x4 (PCIE2); dual at x4 (PCIE2) / x2 (PCIE4))*

* Supports NVMe SSD as boot disks

* If M2_1 is occupied, PCIE4 will be disabled.

• 4 x PCI Express 2.0 x1 Slots

• Supports AMD Quad CrossFireX ^TM and CrossFireX ^TM_**

** This feature is only supported with Ryzen Series CPUs (Matisse, Summit Ridge, Pinnacle Ridge, Picasso and Raven Ridge).

Graphics

- Integrated AMD Radeon ^TM Vega Series Graphics in Ryzen Series APU*

- Integrated AMD Radeon ^TM R-Series Graphics in A-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.

* The Max shared memory 16GB requires 32GB system memory installed.

- Three 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 Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI 1.4 Ports

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 RTL8111GR
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection
• Supports LAN Cable Detection
• Supports Energy Efficient 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 Gen1 Type-C Port (Supports ESD Protection)
- 5 x USB 3.2 Gen1 Ports (Supports ESD Protection (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*
• 2 x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, support 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 A-Series APU and Athlon series APU)**

** If M2_1 is occupied, PCIE4 will be disabled.

** Supports NVMe SSD as boot disks

** Supports ASRock U.2 Kit

- 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module

Connector

• 1 x COM Port Header

- 1 x TPM Header

• 1 x Power LED and Speaker Header

- 1 x RGB LED Header

* Supports up to 12V/3A, 36W LED Strip

• 1 x AMD Fan LED Header

• 1 x CPU Fan Connector (4-pin)

* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

- 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)

* CHA_FAN2 and CHA_FAN3 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

Hardware Monitor

• CPU/Chassis temperature sensing
• CPU/Chassis Fan Tachometer
• CPU/Chassis Quiet Fan
• CPU/Chassis Fan multi-speed control
• Voltage monitoring: +12V, +5V, +3.3V, Vcore

os

• Microsoft® Windows® 10 64-bit

Certifications

• 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 adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using third-party overclocking tools. Overclocking may affect 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.

Chapter 2 Installation

This is an ATX form factor motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits 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.

2.1 Installing the CPU

Unplug all power cables before installing the CPU.

1

Technical line drawing of a square electronic component with a vertical pole and a curved arrow indicating rotation (no text or symbols)

2

Technical line drawing of a mechanical component with a highlighted circular feature (no text or symbols)

3

Line drawing of a rectangular device with a scroll arrow indicating rotation (no text or symbols)

2.2 Installing the CPU Fan and Heatsink

After 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.

Please turn off the power or remove the power cord before changing a CPU or heatsink.

Installing the CPU Box Cooler SR1

1

Technical diagram showing screw installation on a microprocessor base (no text or symbols)

2

Technical line drawing of a mechanical component with two views showing internal structure and mounting points (no text or symbols)

3

Technical diagram showing assembly of a device with labeled components and directional arrows indicating assembly steps.

4

Technical line drawing of a mechanical device with mounting base and wiring, no visible text or symbols

Installing the AM4 Box Cooler SR2

1

Technical diagram showing screw installation components with arrows indicating assembly (no text or labels)

2

Technical line drawing of an electronic component with mounting holes and a central chip, showing no text or symbols.

3

Technical diagram of a mechanical assembly with exploded view and mounting base (no text or symbols)

4

Technical line drawing of a mechanical device with mounting base and wiring, no visible text or symbols

5 RGB LED Cable +12V 4-pin FAN cable +12V +12V

*The diagram shown here are for reference only. Please refer to page 32 for the orientation of AMD Fan LED Header (AMD_FAN_LED1).

Installing the AM4 Box Cooler SR3

1

Technical line drawing of a mechanical assembly with a central component and base components, showing no text or symbols.

2

Technical line drawing of a mechanical device with no visible text or symbols

3

Technical line drawing of a mechanical device with no visible text or symbols

4

Technical line drawing of a mechanical device with internal components and a highlighted orange section (no text or symbols)

5

Technical line drawing of a mechanical device with mounting base and internal components (no text or symbols)

6

+12V +12V

7

Technical line drawing of a mechanical device with internal components and wiring (no text or symbols)

Please note that only one cable should be used at a time in this step.

If you select AMD_FAN_LED1, please install ASRock utility "ASRock RGB LED".

If you select USB connector, please install AMD utility "SR3 Settings Software".

*The diagram shown here are for reference only. Please refer to page 32 for the orientation of AMD Fan LED Header (AMD_FAN_LED1).

2.3 Installing Memory Modules (DIMM)

This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology.

1. For dual channel configuration, 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.

AMD non-XMP Memory Frequency Support

A-Series APUs (Bristol Ridge):

UDIMM Memory Slot

A1 A2 B1 B2

Frequency

(Mhz)

- SR - - 2400

- DR -- 2400

- SR - SR 2400

- DR - DR 2133

SR SR SR SR 1866

SR/DR DR SR/DR DR 1866

Ryzen Series CPUs (Matisse):

UDIMM Memory Slot

A1 A2 B1 B2

Frequency

(Mhz)

- 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

Ryzen Series CPUs (Pinnacle Ridge):

UDIMM Memory SlotA1 A2 B1 B2

Frequency(Mhz)

- 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

Ryzen Series CPUs (Picasso):

UDIMM Memory SlotA1 A2 B1 B2

Frequency(Mhz)

- 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

Ryzen Series CPUs (Summit Ridge):

UDIMM Memory SlotA1 A2 B1 B2

Frequency(Mhz)

- 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

Ryzen Series CPUs (Raven Ridge):

UDIMM Memory SlotA1 A2 B1 B2

Frequency(Mhz)

- 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

SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label

DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label

The DIMM only fits 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

Technical line drawing of a mechanical support structure with an arrow indicating rotation (no text or symbols)

2

Illustration of hands installing a component into a mechanical bracket with an arrow indicating the process (no text or symbols present)

3

Isometric line drawing of a rectangular electronic component with multiple slots and a curved arrow indicating rotation (no text or symbols)

2.4 Expansion Slots (PCI Express Slots)

There are 6 PCI Express slots on the motherboard.

Before installing an expansion card, please make sure that the power supply is switched off 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.

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 x1 slot) is used for PCI Express x1 lane width cards.

PCIE4 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards.**

PCIE5 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.

PCIE6 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.

** If M2_1 is occupied, PCIE4 will be disabled.

PCIe Slot Configurations

PCIe Slot PCIE1 PCIE2 PCIE3 PCIE4 PCIE5 PCIE6

A-Series APUs (Bristol Ridge) x1 8 x1 x2 x1 x1

Ryzen Series CPUs (Matisse) x1 x16 x1 x4 x1 x1

Ryzen Series CPUs (Pinnacle Ridge) x1 x16 x1 x4 x1 x1

Ryzen Series CPUs (Summit Ridge) x1 x16 x1 x4 x1 x1

Ryzen Series CPUs (Picasso) x1 x8 x1 x4 x1 x1

Ryzen Series CPUs (Raven Ridge) x1 x8 x1 x4 x1 x1

AMD Athlon Series CPUs x1 x4 x1 x2 x1 x1

2.5 Jumpers Setup

The 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". The illustration shows a 3-pin jumper whose pin1 and pin2 are "Short" when a jumper cap is placed on these 2 pins.

Short Open 1 2 3

Clear CMOS Jumper (CLRMOS1)

(see p.1, No. 19)

CLRMOS1 allows you to clear the data in CMOS. To clear and reset the system parameters to default setup, please turn off the computer and unplug the power cord from the power supply. After waiting for 15 seconds, use a jumper cap to short pin2 and pin3 on CLRMOS1 for 5 seconds. However, please do not clear the CMOS right after you update the BIOS. If you need to clear the CMOS when you just finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clear-CMOS action. Please be noted that the password, date, time, and user default profile will be cleared only if the CMOS battery is removed.

2.6 Onboard Headers and Connectors

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.

System Panel Header (9-pin PANEL1) (see p.1, No. 16)

PLED+ PLED- PWRBTN# GND 1 GND RESET# GND HDLED- HDLED+

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 configure the way to turn off 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. 'The LED is on when the system is operating. The LED keeps blinking when the system is in S3 sleep state. The LED is off when the system is in S4 sleep state or powered off (S5).

HDLED (Hard Drive Activity LED):

Connect to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data.

The front panel design may differ 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.

Power LED and Speaker Header

(7-pin SPK_PLED1)

(see p.1, No. 15)

Please connect the chassis power LED and the chassis speaker to this header.

Serial ATA3 Connectors

Vertical:

(SATA3_1:

see p.1, No. 10)

(SATA3_2:

see p.1, No. 9)

Right Angle:

(SATA3_3:

see p.1, No. 13)

(SATA3_4:

see p.1, No. 14)

(SATA3_A1:

see p.1, No. 11)

(SATA3_A2:

see p.1, No. 12)

SATA3_1

These six 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.

* To minimize the boot time, use AMD SATA ports (SATA3_1\~4) for your bootable devices.

USB 2.0 Headers

(9-pin USB_1_2)

(see p.1, No. 21)

(9-pin USB_3_4)

(see p.1, No. 20)

USB_PWR P- P+ GND DUMMY 1 GND P+ P- USB_PWR

There are two headers on this motherboard. Each USB 2.0 header can support two ports.

USB 3.2 Gen1 Header

(19-pin USB3_5_6)

(see p.1, No. 8)

VbusVbus Vbus IntA_PA_SSRX- IntA_PA_SSRX+ GND GND IntA_PA_SSTX- IntA_PA_SSTX+ GND GND IntA_PA_D- IntA_PA_D+ Dummy 3

There 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.1, No. 24)

GND PRESENCE# MIC_RET OUT_RET 1 OUT2_L J_SENSE OUT2_R MIC2_R MIC2_L

This header is for

connecting audio devices to the front audio panel.

1. High Definition 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".

Chassis Fan Connectors

(4-pin CHA_FAN1)

(see p.1, No. 18)

(4-pin CHA_FAN2)

(see p.1, No. 17)

(4-pin CHA_FAN3)

(see p.1, No. 25)

FAN_VOLTAGE_CONTROL GND FAN_SPEED FAN_SPEED_CONTROL 1 2 3 4

Please connect fan cables to the fan connectors and match the black wire to the ground pin.

CPU Fan Connector

(4-pin CPU_FAN1)

(see p.1, No. 2)

FAN_VOLTAGE_CONTROL GND FAN_SPEED FAN_SPEED_CONTROL 1 2 3 4

This motherboard provides 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.

ATX Power Connector (24-pin ATXPWR1) (see p.1, No. 7)

This motherboard provides 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.1, No. 1)

This 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.1, No. 22)

RRXD1 DDTR#1 DDSR#1 CCTS#1 RRI#1 RRTS#1 GND TTXD1 DDCD#1

This COM1 header supports a serial port module.

TPM Header (17-pin TPMS1) (see p.1, No. 23)

PCICLK FRAME PCIRST# LAD3 +3V LAD0 +3VSB GND CND SMB_CLK_MAIN SMB_DATA_MAIN LAD2 LAD1 CND S_PWRDWN# SERIRQ# GND

This connector supports Trusted Platform Module (TPM) system, which can securely store keys, digital certificates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity.

RGB LED Header (4-pin RGB_HEADER1) (see p.1, No. 6)

RGB LED header is used to connect RGB LED extension cable which allows users to choose from various LED lighting effects.

Caution: Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be damaged.

AMD FAN LED Header (4-pin AMD_FAN_ LED1) (see p.1, No. 5)

AMD FAN LED Header is used to connect RGB LED extension cable that comes with AMD heatsink. The cable connection allows users to choose from various LED lighting effects.

Caution: Never install the FAN LED cable in the wrong orientation; otherwise, the cable may be damaged.

2.7 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 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 A-Series APU and Athlon series APU).

* If M2_1 is occupied, PCIE4 will be disabled.

Installing the M.2\_SSD (NGFF) Module

Pure technical line drawing of a rectangular component with cutouts and internal features (no text or symbols)

Step 1

Prepare a M.2_SSD (NGFF) module and the screw.

③ ② ① C B A

Step 2

Depending on the PCB type and length of your M.2_SSD (NGFF) module, find the corresponding nut location to be used.

No.123

Nut Location A B C

PCB Length 4.2cm 6cm 8cm

Module Type Type 2242 Type2260 Type 2280

Step 3

Move the standoff based on the module type and length. The standoff 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 standoff by hand.

Step 4

Peel off the yellow protective film on the nut to be used. Hand tighten the standoff into the desired nut location on the motherboard.

Technical diagram of a mechanical assembly with labeled components A and B, showing a directional arrow and component layout (no text or symbols beyond labels)

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 fits in one orientation.

B A 20°

Simple line drawing of a mechanical setup with a lever and base plate (no text or symbols)

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.

M.2\_SSD (NGFF) Module Support List

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)

For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for details: http://www.asrock.com

2.8 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. The M.2 Socket (M2_2) supports type 2230/2242/2260/2280/22110 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

Pure technical line drawing of a rectangular component with no text or symbols

Step 1

Prepare a M.2_SSD (NGFF) module and the screw.

E D C B A 1 2 3 4 5

Step 2

Depending on the PCB type and length of your M.2_SSD (NGFF) module, find the corresponding nut location to be used.

No.12345

Nut Location A B C D E
PCB Length	3cm	4.2cm	6cm	8cm	11cm
Module Type	Type2230	Type 2242	Type2260	Type 2280	Type 22110

E D C B A

Step 3

Move the standoff based on the module type and length.

The standoff 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 standoff by hand.

Step 4

Peel off the yellow protective film on the nut to be used. Hand tighten the standoff into the desired nut location on the motherboard.

ABCDE ABCDE 20°

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 fits in one orientation.

Simple line drawing of a mechanical setup with a lever and base plate (no text or symbols)

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.

M.2\_SSD (NGFF) Module Support List

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

For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for details: http://www.asrock.com

1 Einleitung

Cavalier Clear CMOS (CLRMOS1)

(voir p.1, No. 19)

Par défaut

Fonction Clear CMOS

• Supporto WOL (Wake-On-LAN)

• Supporto Energy Efficient Ethernet 802.3az

- Supporto PXE

I/O pannello posteriore

• 1 x porta mouse/tastiera PS/2

- 1 x porta D-Sub

- 1 x porta DVI-D

- 1 x porta HDMI

** Supporta kit ASRock U.2

- 1 x M.2 Socket (M2_2), supporta un modulo M.2 SATA3 6,0 Gb/s tipo 2230/2242/2260/2280/22110

Connettore

Apagar o Jumper CMOS (CLRMOS1)

(ver p.1, N.° 19)

AMD Ryzen series CPUs

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

The Netherlands

Phone: [phone]

Fax: [phone]

ASRock America, Inc.

13848 Magnolia Ave, Chino, CA91710

U.S.A.

Phone: [phone]

Fax: [phone]

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2.1077(a)

Responsible Party Name: ASRock Incorporation

Address: 13848 Magnolia Ave, Chino, CA91710

Phone/Fax No: [phone]/[phone]

hereby declares that the product

Product Name : Motherboard

Model Number : X370 Pro4

Conforms to the following specifications:

☒ FCC Part 15, Subpart B, Unintentional Radiators

Supplementary Information:

This 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.

Representative Person's Name: James

Signature :

Date : May 12, 2017

EU Declaration of Conformity

ASRock®

For the following equipment:

Motherboard

(Product Name)

X370 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)

EMC — Directive 2014/30/EU (from April 20th, 2016)

□ EN 55022:2010/AC:2011 Class B

EN 55024:2010/A1:2015

EN 55032:2012+AC:2013 Class B

EN 61000-3-3:2013

EN 61000-3-2:2014

□ LVD — Directive 2014/35/EU (from April 20th, 2016)

□ EN 60950-1:2011+A2:2013 □

EN 60950-1:2006/A12:2011

☒ RoHS — Directive 2011/65/EU

CE marking

(EU conformity marking)

CE

ASRock EUROPE B.V.

(Company Name)

Bijsterhuizen 1111 6546 AR Nijmegen The Netherlands

(Company Address)

Person responsible for making this declaration:

(Name, Surname)

A.V.P

(Position / Title)

February 9, 2018

(Date)

P/N: 15G062075001AK V1.1