ASROCK B850M-X User Manual
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ASROCK B850M-X User Manual

ASROCK B850M-X User Manual

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  • Page 2: Contact Information

    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 e-mail: info@asrock.com.tw...

  • Page 3: Table Of Contents

    1.1 Package Contents 1.2 Specifications 1.3 Motherboard Layout 1.4 I/O Panel 1.5 Block Diagram 1.6 802.11axe Wi-Fi 6E Module and ASRock WiFi 2.4/5/6 GHz Antennas (B850M-X WiFi) Chapter 2 Installation 2.1 Installing the CPU 2.2 Installing the CPU Fan and Heatsink 2.3 Installing Memory Modules (DIMM)

  • Page 4: Smart Switches

    2.14 Smart Switches 2.15 Post Status Checker 2.16 M.2 WiFi/BT PCIe WiFi Module Installation Guide (B850M-X) 2.17 M.2 SSD Installation Guide (M2_1) 2.18 M.2 SSD Installation Guide (M2_2)

  • Page 5: Chapter 1 Introduction

    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.

  • Page 6: Specifications

    • Supports DDR5 ECC/non-ECC, un-buffered memory up to 8200+(OC)* • Max. capacity of system memory: 128GB • Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules * Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/) CPU: Expansion Slot •...
  • Page 7 B850M-X WiFi B850M-X Graphics • Integrated AMD RDNA graphics (Actual support may vary by CPU) • 1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz • 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max.
  • Page 8 • 5 x USB 2.0 (1 Rear (USB_1), 4 Front) * All USB ports support ESD Protection Rear Panel • 2 x Antenna Ports (B850M-X WiFi) • 2 x Antenna Mounting Points (B850M-X) • 1 x HDMI Port • 1 x DisplayPort 1.4 •...
  • Page 9 B850M-X WiFi B850M-X RAID • Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices • Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices* * Requires additional M.2 NVMe expansion cards to support RAID 10 •...
  • Page 10 • 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.

  • Page 11: Motherboard Layout

    B850M-X WiFi B850M-X 1.3 Motherboard Layout CPU_FAN1 CPU_FAN2 AIO_PUMP ATX12V1 DRAM BOOT BIOS _FB1 USB 2.0 T: USB_2 B: USB_1 USB 3.2 Gen1 T: USB32_1 B: USB32_TC1 USB 3.2 Gen1 Top: T: USB32_3 LAN1 B: USB32_2 PCIE1 SPI_TPM_J1 BIOS CMOS...
  • Page 12 No. Description ATX 12V Power Connector (ATX12V1) CPU Fan Connector (CPU_FAN1) 2 x 288-pin DDR5 DIMM Slots (DDR5_A1, DDR5_B1) CPU Fan Connector (CPU_FAN2) AIO Pump Fan Connector (AIO_PUMP) Post Status Checker (PSC) Addressable LED Header (ADDR_LED2) Addressable LED Header (ADDR_LED1) ATX Power Connector (ATXPWR1) Front Panel Type C USB 3.2 Gen1 Header (USB32_TC_2) USB 3.2 Gen1 Header (USB32_4_5)

  • Page 13: I/O Panel

    B850M-X WiFi B850M-X 1.4 I/O Panel B850M-X WiFi: No. Description No. Description 2.5G LAN RJ-45 Port* USB 3.2 Gen1 Type-C Port (USB32_TC1) Line In (Light Blue)** USB 2.0 Ports (USB_12) Front Speaker (Lime)** BIOS Flashback Button Microphone (Pink)** HDMI Port USB 3.2 Gen1 Ports (USB32_23)
  • Page 14 * There are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications. ACT/LINK LED SPEED LED LAN Port Activity / Link LED Speed LED Status Description Status Description No Link 10Mbps connection Blinking Data Activity Orange...

  • Page 15: Block Diagram

    B850M-X WiFi B850M-X 1.5 Block Diagram...

  • Page 16: 802.11Axe Wi-Fi 6E Module And Asrock Wifi 2.4/5/6 Ghz Antennas (B850M-X Wifi)

    1.6 802.11axe Wi-Fi 6E Module and ASRock WiFi 2.4/5/6 GHz Antennas (B850M-X WiFi) 802.11axe Wi-Fi 6E + BT Module This motherboard comes with an exclusive 802.11 a/b/g/n/ac/ax/axe Wi-Fi 6E + BT module that offers support for 802.11 a/b/g/n/ac/ax/axe Wi-Fi 6E connectivity standards and Bluetooth.
  • Page 17 B850M-X WiFi B850M-X WiFi Antennas Installation Guide Step 1 Prepare the WiFi 2.4/5/6 GHz Antennas that come with the package. Step 2 Connect the two WiFi 2.4/5/6 GHz Antennas to the antenna connectors. Turn the antenna clockwise until it is securely connected.

  • Page 18: Chapter 2 Installation

    Chapter 2 Installation This is a Micro 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.

  • Page 19: Installing The Cpu

    B850M-X WiFi B850M-X 2.1 Installing the CPU 1. Before you insert the 1718-Pin CPU into the socket, please check if the PnP cap is on the socket, if the CPU surface is unclean, or if there are any bent pins in the socket.
  • Page 20 Carefully place the CPU in as flat as possible. Do not drop it.
  • Page 21 B850M-X WiFi B850M-X Make sure the CPU is aligned with the socket before locking it into place. Make sure the black cover plate is always in place until it pops off when closing the socket lever. Please save the cover if the processor is removed. The cover must be placed if you wish...

  • Page 22: Installing The Cpu Fan And Heatsink

    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.
  • Page 23 B850M-X WiFi B850M-X...
  • Page 24 Installing the CPU Cooler (Type 2)
  • Page 25 B850M-X WiFi B850M-X...
  • Page 26 +12V *The illustrations shown here are for reference purposes only and may not exactly match the model you purchase.
  • Page 27 B850M-X WiFi B850M-X Installing the CPU Cooler (Type 3)
  • Page 29 B850M-X WiFi B850M-X...
  • Page 30 +12V Please note that only one cable should be used at a time in this step. If you select RGB_LED1, please install ASRock utility "ASRock Polychrome SYNC". If you select USB connector, please install AMD utility "SR3 Settings Software". *The illustrations shown here are for reference purposes only and may not exactly match...

  • Page 31: Installing Memory Modules (Dimm)

    B850M-X WiFi B850M-X 2.3 Installing Memory Modules (DIMM) This motherboard provides two 288-pin DDR5 (Double Data Rate 5) 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) DDR5 DIMM pairs.

  • Page 33: Connecting The Front Panel Header

    B850M-X WiFi B850M-X 2.4 Connecting the Front Panel Header Front Panel Wires System Panel Header Power SW (-) RESET SW (+) Power SW (+) RESET SW (-) Power LED (-) HDD LED (-) Power LED (+) HDD LED (+) PANEL1...

  • Page 34: Installing The I/O Panel Shield

    2.5 Installing the I/O Panel Shield...

  • Page 35: Installing The Motherboard

    B850M-X WiFi B850M-X 2.6 Installing the Motherboard...

  • Page 36: Installing Sata Drives

    2.7 Installing SATA Drives Optical Drive SATA Drive SATA Data Cable...
  • Page 37 B850M-X WiFi B850M-X SATA Power Connector SATA Data Connector...

  • Page 38: Installing A Graphics Card

    2.8 Installing a Graphics Card CLICK!
  • Page 39 B850M-X WiFi B850M-X Expansion Slots (PCIe Slots) There are 3 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.

  • Page 40: Connecting Peripheral Devices

    2.9 Connecting Peripheral Devices...

  • Page 41: Connecting The Power Connectors

    B850M-X WiFi B850M-X 2.10 Connecting the Power Connectors...

  • Page 42: Power On

    2.11 Power On...

  • Page 43: Jumpers Setup

    B850M-X WiFi B850M-X 2.12 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”. Clear CMOS Jumper (CLRCMOS1) (see p.7, No.

  • Page 44: Onboard Headers And Connectors

    2.13 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.7, No.
  • Page 45 B850M-X WiFi B850M-X Power LED and Speaker Header (7-pin SPK_PLED1) (see p.7, No. 16) Please connect the chassis power LED and the chassis speaker to this header. SPK_PLED1 SPEAKER DUMMY DUMMY PLED+ PLED+ PLED- Serial ATA3 Connectors Right Angle: (SATA3_1) (see p.7, No. 13) (Lower) (SATA3_2) (see p.7, No.
  • Page 46 USB 2.0 Headers (9-pin USB_3_4) (see p.7, No. 20) (9-pin USB_5_6) (see p.7, No. 19) There are two headers on this motherboard. Each USB 2.0 header can support two ports. USB_3_4 USB_PWR DUMMY USB_PWR USB_5_6 USB_PWR DUMMY USB_PWR USB 3.2 Gen1 Header (19-pin USB32_4_5) (see p.7, No.
  • Page 47 B850M-X WiFi B850M-X Front Panel Type C USB 3.2 Gen1 Header (20-pin USB32_TC_2) (see p.7, No. 10) There is one Front Panel Type C USB 3.2 Gen1 Header on this motherboard. This header is used for connecting a USB 3.2 Gen1 module for additional USB 3.2 Gen1 ports.
  • Page 48 Chassis Fan Connectors (4-pin CHA_FAN1) (see p.7, No. 21) (4-pin CHA_FAN2) (see p.7, No. 22) (4-pin CHA_FAN3) (see p.7, No. 23) This header allows you to connect Case or Radiator fan. If you plan to connect a 3-pin fan, please connect it to Pin 1-3. CHA_FAN3 FAN_VOLTAGE CHA_FAN_SPEED...
  • Page 49 B850M-X WiFi B850M-X CPU Fan Connector (4-pin CPU_FAN1) (see p.7, No. 2) This header allows you to connect CPU fan. If you plan to connect a 3-pin fan, please connect it to Pin 1-3. CPU_FAN1 +12V CPU_F AN_SPEED FAN_SPEED_CONTROL CPU Fan Connector (4-pin CPU_FAN2) (see p.7, No.
  • Page 50 AIO Pump Fan Connector (4-pin AIO_PUMP) (see p.7, No. 5) This header allows you to connect AIO (All-in-One) pump or fan. If you plan to connect a 3-pin AIO cooler fan, please connect it to Pin 1-3. AIO_PUMP FAN_VOLTAGE AIO_PUMP_SPEED FAN_SPEED_CONTROL...
  • Page 51 B850M-X WiFi B850M-X ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 9) 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. ATXPWR1 ATX 12V Power Connector (8-pin ATX12V1) (see p.7, No.
  • Page 52 SPI TPM Header (13-pin SPI_TPM_J1) (see p.7, No. 12) This connector supports SPI 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.
  • Page 53 B850M-X WiFi B850M-X RGB LED Header (4-pin RGB_LED1) (see p.7, No. 25) This RGB header is used to connect RGB LED extension cable which allow 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.
  • Page 54 Addressable LED Headers (3-pin ADDR_LED1) (see p.7, No. 8) (3-pin ADDR_LED2) (see p.7, No. 7) (3-pin ADDR_LED3) (see p.7, No. 24) These headers are used to connect Addressable LED extension cables which allow users to choose from various LED lighting effects. Caution: Never install the Addressable LED cable in the wrong orientation;...
  • Page 55 B850M-X WiFi B850M-X 1. Never install the Addressable LED cable in the wrong orientation; otherwise, the cable may be damaged. 2. Before installing or removing your Addressable LED cable, please power off your system and unplug the power cord from the power supply. Failure to do so may cause damages to motherboard components.

  • Page 56: Smart Button

    2.14 Smart Button The motherboard has one smart button: BIOS Flashback Button, allowing users to flash the BIOS. BIOS Flashback Button (BIOS_FB1) (see p.9, No. 9) BIOS Flashback Button allows users to flash the BIOS. BIOS_FB1 USB BIOS Flashback port...
  • Page 57 B850M-X WiFi B850M-X ASRock BIOS Flashback feature allows you to update BIOS without powering on the system, even without CPU. Before using the BIOS Flashback function, please suspend BitLocker and any encryp- tion or security relying on the TPM. Make sure that you have already stored and backup-ed the recovery key.

  • Page 58: Post Status Checker

    2.15 Post Status Checker Post Status Checker (PSC) diagnoses the computer when users power on the machine. The LEDs light up to show what component is running into an issue. They emit red, yel- low, white and yellow-green lights to indicate, respectively, the CPU, memory, VGA and storage are not detected or fail.
  • Page 59 B850M-X WiFi B850M-X 2.16 M.2 WiFi/BT PCIe WiFi Module Installation Guide (B850M-X) The M.2 is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The M.2 Socket (Key E) supports type 2230 WiFi/BT PCIe WiFi module.
  • Page 60 Step 3 Gently insert the WiFi/BT module into the M.2 slot. Please be aware that the module only fits in one orientation. Step 4 Tighten the screw with a screwdriver to secure the module into place. Please do not overtighten the screw as this might damage the module.
  • Page 61 B850M-X WiFi B850M-X 2.17 M.2 SSD Installation Guide (M2_1) The M.2 is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Blazing M.2 Socket (M2_1, Key M) supports type 2280 PCIe Gen5x4 (128 Gb/s) mode.
  • Page 62 Step 3 Before installing a M.2 SSD, please loosen the screws to remove the M.2 heatsink. *Please remove the protective film on the bottom side of the M.2 heatsink before you install a M.2 SSD.. Step 4 Align and gently insert the M.2 SSD into the M.2 slot.
  • Page 63 B850M-X WiFi B850M-X Step 6 Tighten the screws with a screwdriver to secure the SSD and M.2 heatsink into place in the order shown. Tighten screw opposite the M.2 connector first (2), and then tighten the one next to the M.2 connector (3).
  • Page 64 2.18 M.2 SSD Installation Guide (M2_2) The M.2 is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Hyper M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode. M2_2 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors.
  • Page 65 B850M-X WiFi B850M-X Step 3 Use a screwdriver to remove the standoff. Skip Step 3 if your M.2 SSD is Type 2280. Step 4 Peel off the yellow protective film on the nut to be used. Tighten the standoff into the desired nut location on the motherboard with a screwdriver.
  • Page 66 Ensure that the notch at the end of the M.2 SSD aligns with the nut. Then secure the M.2 SSD by turning the nut lock clockwise to its locked position. For the latest updates of M.2 SSD support list, please visit our website for details: http:// www.asrock.com...

  • Page 67: Copyright Notice

    (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...

  • Page 68: Fcc Compliance Statement

    FCC Compliance Statement 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.
  • Page 69 ASRock follows the green design concept to design and manufacture our products, and makes sure that each stage of the product life cycle of ASRock product is in line with global environmental regulations. In addition, ASRock disclose the relevant information based on regulation requirements.
  • Page 70 If you require assistance please call ASRock Tel : +886-2-28965588 ext.123 (Standard International call charges apply)
  • Page 71 European Community Radio Equipment Directive Compliance Statement This device complies with directive 2014/53/EU issued by the Commision of the European Community. This equipment complies with EU radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &...

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