MSI MAG B850M MORTAR WIFI User Manual
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MSI MAG B850M MORTAR WIFI User Manual

MSI MAG B850M MORTAR WIFI User Manual

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MAG Series
Motherboard
MAG B850M MORTAR WIFI
User Guide

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Summary of Contents for MSI MAG B850M MORTAR WIFI

  • Page 1 MAG Series Motherboard MAG B850M MORTAR WIFI User Guide...

  • Page 2: Table Of Contents

    JARGB_V2_1~3: A-RAINBOW V2 (ARGB Gen2) LED connectors ......51 JAF_1: EZ Conn-Header V1 ..................53 Onboard LEDs........................55 EZ Debug LED ......................55 EZ Memory Detection LED ..................55 Installing OS, Drivers & MSI Center ................56 Installing Drivers with MSI Driver Utility Installer ..........57...
  • Page 3 UEFI BIOS ........................60 BIOS Setup ......................61 Entering BIOS Setup ....................62 Resetting BIOS ......................63 Updating BIOS ......................63 Block diagram .......................65...

  • Page 4: Quick Start

    Quick Start This Quick Start provides clear diagrams to help you install the motherboard. Video demonstrations are also available for some installations. Visit these videos by clicking the provided URL on your phone or tablet’ s web browser. Alternatively, you can scan the QR code to access the video directly.

  • Page 5: Safety Information

    Safety Information The components included in this package are prone to damage from electrostatic ● discharge (ESD). Please adhere to the following instructions to ensure successful computer assembly. Ensure that all components are securely connected. Loose connections may cause ● the computer to not recognize a component or fail to start.
  • Page 6 Case stand-off notification To prevent damage to the motherboard, any unnecessary mounting stand-off between the motherboard circuits and the computer case is prohibited. The Case standoff keep out zone signs will be marked on the backside of motherboard (as shown below) to serve as a warning to user.

  • Page 7: Installing A Processor

    Installing a Processor ⚽ https://msi.gm/SDBE5855 ●...
  • Page 8 ⚠ Important If you are installing the screw-type CPU heatsink, please follow the figure below to remove the retention module first and then install the heatsink.
  • Page 9 Installing DDR5 memory ⚽ https://msi.gm/S647FF99 ● DIMMA1 DIMMA2 DIMMA2 DIMMA2 DIMMB1 DIMMB2 DIMMB2...

  • Page 10: Connecting The Front Panel Header

    Connecting the Front Panel Header ⚽ https://msi.gm/S8EF7577 ● Power LED Power Switch JFP1 Reserved HDD LED Reset Switch JFP1 HDD LED - HDD LED HDD LED + POWER LED - POWER LED POWER LED +...

  • Page 11: Installing The Motherboard

    Installing the Motherboard ⚽ https://msi.gm/S4BA9046 ● Torque: 3 kgf·cm* *3 kgf·cm = 0.3 N·m = 2.6 lbf·in...

  • Page 12: Connecting The Power Connectors

    Connecting the Power Connectors ⚽ https://msi.gm/SD937E2C ● ATX_PWR1 CPU_PWR1~2 PCIE_PWR1...

  • Page 13: Installing Sata Drives

    Installing SATA Drives ⚽ https://msi.gm/S9369131 ●...

  • Page 14: Installing A Graphics Card

    Installing a Graphics Card ⚽ https://msi.gm/SBC41FF1 ●...

  • Page 15: Connecting Peripheral Devices

    Connecting Peripheral Devices...
  • Page 16 Power On...

  • Page 17: Specifications

    Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop ● Processors* Processor socket AM5 ● * Please go to www.msi.com to get the newest support status as new processors are released. Chipset AMD B850 Chipset 4x DDR5 memory slots*, supporting up to 256GB** ●...
  • Page 18 Continued from previous column 3x M.2 slots (Key M) ● M2_1 slot (From CPU) ● Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 ● Series processors) Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series ● processors) Supports 2260/ 2280 storage devices ●...
  • Page 19 Continued from previous column Wi-Fi 7 The Wireless module is pre-installed in the M.2 (Key-E)slot ● Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) ● up to 5.8Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Wi-Fi & Bluetooth® ● Supports Bluetooth®...
  • Page 20 ACPI 6.5, SMBIOS 3.7 ● Multi-language ● Drivers ● MSI Center ● Acrobat ● Adobe Creative Cloud ● Software AIDA64 Extreme - MSI Edition ● CPU-Z MSI GAMING ● MSI App Player (Blue Stacks) ● Dropbox ● Norton 360 ●...

  • Page 21: Special Features

    Special Features MSI Center EZ DIY MSI AI Engine EZ M.2 Sheild Frozr II ● ● Game Highlights EZ M.2 Clip II ● ● Cooling Wizard EZ PCIe Release ● ● Mystic light Flash BIOS Button ● ● Ambient Link Clear CMOS Button ●...

  • Page 22: Package Contents

    Package Contents Please check the contents of your motherboard package. It should contain: Board 1x Motherboard ● Documentation 1x Quick installation guide ● 1x European Union Regulatory Notices ● Cables 1x SATA cable ● 1x EZ Front Panel Cable ● 1x 1 to 2 EZ Conn-Cable (V1) ●...

  • Page 23: Back Panel Connectors

    Back Panel Connectors Item Description Clear CMOS button - Power off your computer. Press and hold the Clear CMOS button for about 5-10 seconds to reset BIOS to default values. HDMI™ port 5Gbps LAN (RJ45) port USB 10Gbps Type-A port (From CPU) USB 5Gbps Type-A ports (From B850 chipset/ GL3523) USB 20Gbps Type-C port (From B850 chipset) Wi-Fi Antenna connectors...

  • Page 24: Lan Port Led Status Table

    LAN Port LED Status Table Link/ Activity LED Speed LED Link/ Activity LED Speed LED Status Description Status Speed No link 10 Mbps Yellow blinking slowly Linked Green 100 Mbps/ 1 Gbps/ 2.5 Gbps Yellow blinking rapidly Data activity Orange 5 Gbps Audio Jacks Connection Audio jacks to headphone and microphone diagram...
  • Page 25 Audio jacks to 4-channel speakers diagram AUDIO INPUT Rear Front Front Panel Audio jacks to 5.1-channel speakers diagram AUDIO INPUT Rear Front Center/ Subwoofer Front Panel Audio jacks to 7.1-channel speakers diagram AUDIO INPUT Rear Front Side Center/ Subwoofer Front Panel...

  • Page 26: Installing Antenna

    Installing Antenna 1. Connect two antenna cables tight to the Wi-Fi antenna connectors as shown. 2. Place the antenna as high as possible for a better signal.

  • Page 27: Overview Of Components

    Overview of Components Top view CPU_FAN1 PUMP_SYS1 SYS_FAN1 JARGB_V2_3 ATX_PWR1 JUSBC1 JTPM1 PCI_E1 JCI1 M2_1 SATA▼_1▲_2 SATA▼_3▲_4 M2_2 SYS_FAN2 PCI_E2 SYS_FAN3 JARGB_V2_2...
  • Page 28 Bottom view M2_3...

  • Page 29: Cpu Socket

    CPU Socket The AM5 socket is a modern CPU socket designed for AMD processors. It is a key component in contemporary computing systems, providing the foundation for powerful and efficient CPUs. Installing the CPU to the AM5 socket The surface of the AM5 CPU has two notches and a golden triangle to assist in correctly lining up the CPU for motherboard placement.
  • Page 30 ● disconnect the power cord from the power outlet before installing or removing the CPU. Please retain the CPU protective cap after installing the processor. MSI will deal with ● Return Merchandise Authorization (RMA) requests if only the motherboard comes with the protective cap on the CPU socket.

  • Page 31: Ddr5 Dimm Slots

    DDR5 DIMM Slots The DDR5 DIMM slot is a dedicated connector designed to accommodate DDR5 (Double Data Rate 5) memory modules. It represents the latest standard in computer memory, providing enhanced data transfer speeds and efficiency. DIMMA1 DIMMB1 DIMMA2 DIMMB2 Channel A Channel B Memory module installation recommendation...
  • Page 32 It is recommended to use a more efficient memory cooling system for full DIMMs ● installation or overclocking. The stability and compatibility of installed memory module depend on installed CPU ● and devices when overclocking. Please refer to www.msi.com for more information on compatible memory. ●...

  • Page 33: Pci_E1~2: Pcie Expansion Slots

    PCI_E2: PCIe 4.0 x4 ⚠ Important If you install a large and heavy graphics card, you need to use a tool such as MSI ● Graphics Card Bolster to support its weight to prevent deformation of the slot. For a single PCIe x16 expansion card installation with optimum performance, using ●...
  • Page 34 Installing a graphics card into PCI_E1 slot 1. Ensure that the EZ PCIe Release Button is in the locked position. If it is unlocked, press the button to lock it. 2. Insert the graphics card into the PCIe slot.
  • Page 35 Removing a graphics card from PCI_E1 slot 1. Ensure that the EZ PCIe Release Button is in the unlocked position. If it is locked, press the button to unlock it. 2. Gently pull the graphics card out of the PCIe slot.

  • Page 36: M2_1~3: M.2 Slots (Key M)

    M2_3 M2_2 Watch the video to learn how to Install M.2 SSD ⚽ with Screwless M.2 Shield Frozr heatsink. https://msi.gm/S7F5D000 ● ⚠ Important If your M.2 SSD equips its own heatsink, please note the following: Remove the M.2 plate or rubber cube in the M.2 slot before installing M.2 SSD. Do not ●...
  • Page 37 Installing M.2 module into M2_1/ M2_2 slot 1. Press and hold the end button of Screwless M.2 Shield Frozr heatsink. 2. Slightly lift up the end part of Screwless M.2 Shield Frozr heatsink and move it forward to uninstall the heatsink. 3.
  • Page 38 4. If you install 2260 SSD, use the included EZ M.2 Clip II Remover. Remove the plate screw and install EZ M.2 Clip II in the slot by using the remover. Skip this step if you install 2280 SSD. EZ M.2 Clip II Remover EZ M.2 Clip II plate screw 5.
  • Page 39 7. Remove the protective films from the thermal pads under Screwless M.2 Shield Frozr heatsink. 8. Align the notches under Screwless M.2 Shield Frozr heatsink with the tenons, and then put the heatsink back in place. 9. Press the end side of Screwless M.2 Shield Frozr heatsink to lock it completely.
  • Page 40 Installing M.2 module into M2_3 slot 1. Insert your M.2 SSD into the M2_3 slot at a 30-degree angle. 2. Secure the M.2 SSD in place with the supplied M.2 8.5H screw. 30º 30º ⚠ Important M2_3 slot is on the bottom of the motherboard.

  • Page 41: Sata_1~4: Sata 6Gb/S Connectors

    SATA_1~4: SATA 6Gb/s Connectors These connectors are SATA 6Gb/s interface ports. Each connector can connect to one SATA device. SATA_2 SATA_1 SATA_4 SATA_3 ⚠ Important Please do not fold the SATA cable at a 90-degree angle. Data loss may result during ●...

  • Page 42: Jfp1, Jfp2: Front Panel Connectors

    JFP1, JFP2: Front Panel Connectors The JFP1 connector controls the power on, power reset, and the LEDs on your PC case/ chassis. Power Switch/ Reset Switch headers allow you to connect power button/ reset button. Power LED header connects to LED light on the PC case, and HDD LED header indicates the activity of the hard disk.

  • Page 43: Jdash1 : Tuning Controller Connector

    JDASH1 : Tuning Controller connector This connector is used to connect an optional Tuning Controller module. Signal Name Signal Name No Pin MCU_SMB_SCL_M MCU_SMB_SDA_M VCC5 Ground JOC_FS1: Safe Boot Jumper This jumper is used for Safe Boot. When this jumper is enabled, the system will boot with default settings and lower PCIe (from CPU) mode.

  • Page 44: Cpu_Pwr1~2, Atx_Pwr1, Pcie_Pwr1: Power Connectors

    CPU_PWR1~2, ATX_PWR1, PCIE_PWR1: Power Connectors These power connectors allow you to connect an ATX power supply. CPU_PWR1~2 Signal Name Signal Name Ground Ground Ground Ground +12V +12V +12V +12V ATX_PWR1 Signal Name Signal Name CPU_PWR1~2 +3.3V +3.3V Ground Ground Ground PWR OK 5VSB +12V...

  • Page 45: Jci1: Chassis Intrusion Connector

    JCI1: Chassis Intrusion Connector This connector allows you to connect the chassis intrusion switch cable. Normal Trigger the chassis (default) intrusion event Using chassis intrusion detector 1. Connect the JCI1 connector to the chassis intrusion switch/ sensor on the chassis. 2.

  • Page 46: Jusbc1: Usb 10Gbps Type-C® Front Panel Connectors

    JUSBC1: USB 10Gbps Type-C® Front Panel Connectors This USB connector allows you to connect to the USB Type-C® port on the front panel and supports data transfer speeds of up to 10Gbps. It features a user-friendly design that ensures proper orientation when connecting the cable. USB Type-C Cable JUSBC1 USB Type-C port of...

  • Page 47: Jusb1~2: Usb 2.0 Connectors

    Important Note that the VCC and Ground pins must be connected correctly to avoid possible ● damage. In order to recharge your iPad, iPhone and iPod through USB ports, please install MSI ● Center utility. JTPM1: TPM Module Connector This connector is designed for a Trusted Platform Module (TPM) to enable secure storage of sensitive data and perform cryptographic operations that ensure the integrity of your system.

  • Page 48: Cpu_Fan1, Pump_Sys1, Sys_Fan1~4: Fan Connectors

    CPU_FAN1, PUMP_SYS1, SYS_FAN1~4: Fan Connectors Fan connectors can be divided into two categories: PWM Mode and DC Mode. PWM Mode fan connectors provide a constant 12V output and adjust fan speed with a speed control signal. DC Mode fan connectors control fan speed by changing voltage. Please refer to the following specification table for the fan connector mode of your motherboard.

  • Page 49: Jbat1: Clear Cmos (Reset Bios) Jumper

    JBAT1: Clear CMOS (Reset BIOS) Jumper There is CMOS memory onboard that is external powered from a battery located on the motherboard to save system configuration data. If you want to clear the system configuration, set the jumpers to clear the CMOS memory. Keep Data Clear CMOS/ (default)

  • Page 50: Jrgb1: Rgb Led Connector

    (12V/G/R/B) with the maximum power rating of 3A (12V). Always turn off the power supply and unplug the power cord from the power outlet ● before installing or removing the RGB LED strip. Please use MSI’ s software to control the extended LED strip. ●...

  • Page 51: Jargb_V2_1~3: A-Rainbow V2 (Argb Gen2) Led Connectors

    JARGB_V2_1~3: A-RAINBOW V2 (ARGB Gen2) LED connectors The JARGB_V2 connectors allow you to connect the ARGB Gen2 and the ARGB-based LED strips. The JARGB_V2 connector supports up to 180 individually addressable RGB LEDs with maximum power rating of 3A (5V). Signal Name Signal Name Data...
  • Page 52 Always turn off the power supply and unplug the power cord from the power outlet ● before installing or removing the addressable RGB LED strip. Please use MSI’ s software to control the extended LED strip. ●...

  • Page 53: Jaf_1: Ez Conn-Header V1

    JAF_1: EZ Conn-Header V1 This header is designed to connect MPG EZ120 ARGB fans, simplifying cable routing. It also allows you to connect the ARGB Gen1 and Gen2 LED strips and system fans. Signal Name Signal Name Ground DATA Sense Ground Speed Control Signal No Pin...
  • Page 54 1 to 2 EZ Conn-Cable (V1) ARGB/ ARGB Gen2 LED Fan JAF_1 header ⚠ Important The Fan-JAF1 Cable is included in the packaging of MPG EZ120 ARGB. ● For more information on how to install MPG EZ120 ARGB, please refer to ● https://msi.gm/S5035E56.

  • Page 55: Onboard Leds

    Onboard LEDs EZ Debug LED These LEDs indicate the debug status of the motherboard. LED Color Status CPU is not detected or fail DRAM is not detected or fail Yellow GPU is not detected or fail White Green Booting device is not detected or fail EZ Memory Detection LED This LED indicates that the memory module’...

  • Page 56: Installing Os, Drivers & Msi Center

    Installing OS, Drivers & MSI Center Please download and update the latest utilities and drivers at www.msi.com Installing Windows 11 1. Power on the computer. 2. Insert the Windows 11 installation disc/ USB into your computer. 3. Press the Restart button on the computer case.

  • Page 57: Installing Drivers With Msi Driver Utility Installer

    2. Select Start > Settings > Windows Update, and then select Check for updates. 3. MSI Driver Utility Installer will pop up automatically. 4. Select the I have read and agree to the MSI Terms of Use check box, and then click Next.
  • Page 58 5. Check the Select All checkbox in the lower-left corner and click Install to install MSI Center and drivers. The installation progress will be shown at the bottom. 6. Once the progress has completed, click Finish.
  • Page 59 MSI Center is an application that helps you easily optimize game settings and smoothly use content creation softwares. It also allows you to control and synchronize LED light effects on PCs and other MSI products. With MSI Center, you can customize ideal modes, monitor system performance, and adjust fan speed.

  • Page 60: Uefi Bios

    UEFI has many new functions and advantages that traditional BIOS cannot achieve, and it will completely replace BIOS in the future. The MSI UEFI BIOS uses UEFI as the default boot mode to take full advantage of the new chipset’ s capabilities.

  • Page 61: Bios Setup

    ● have. BIOS User Guide If you’ d like to know more instructions on setting up the BIOS, please refer to https://msi.gm/S53FE767 or scan the QR code to access. ⚠ Important The appearance of the BIOS user guide may differ based on your motherboard model.

  • Page 62: Entering Bios Setup

    Entering BIOS Setup Press Delete key, when the Press DEL key to enter Setup Menu, F11 to enter Boot Menu message appears on the screen during the boot process. Function key +/ -: Increase / decrease the value Enter: Select the item ESC: Exit Tab:...

  • Page 63: Resetting Bios

    ● Please follow the steps below to update BIOS: 1. Download the latest BIOS file from the MSI website that matches your motherboard model, and save it to the USB flash drive. 2. If your motherboard has a Multi-BIOS switch, switch to the target BIOS ROM.
  • Page 64 1. Download the latest BIOS file from the MSI website that matches your motherboard model. 2. Rename the BIOS file to MSI.ROM, and save it to the root directory of a USB flash device. 3. Connect the power supply to CPU_PWR1 and ATX_PWR1. (You don’ t need to install the CPU and memory.)

  • Page 65: Block Diagram

    Block diagram MAG B850M MORTAR WIFI DDR5 DIMM A1/A2 DIMM B1/B2 PCIe 5.0x16 PCI_E1 GEN5 x4 M.2_1 GEN5 x4 M.2_2 (PCIe Only) (PCIe Only) USB3.2 Gen2 10Gbps USB3.2 Gen2 10Gbps (Type-C) (Type-A) Wi-Fi 7 HDMI 2.1 FRL (8K@60Hz) PCIE x4 PCIe 4.0x4 PCI_E2...

  • Page 66: Regulatory Notices

    This device may not cause harmful interference. ● This device must accept any interference received, including interference that may ● cause undesired operation. MSI Computer Corp. 901 Canada Court, City of Industry, CA 91748, USA (626)913-0828 www.msi.com...
  • Page 67 ● Compliance with these directives is assessed using applicable European Harmonized Standards. The point of contact for regulatory matters is MSI-Europe: Eindhoven 5706 5692 ER Son, the Netherlands. For any support regarding the EU General Product Safety Regulation (GPSR), please contact MSI Computer Europe В.V.
  • Page 68 20 cm ensures that radio frequency exposure levels comply with the Australian and New Zealand Standards. クラスB情報技術装置 この装置は 、 クラスＢ情報技術装置です 。 この装置は 、 家庭環境で使用することを目的としてい ますが 、 この装置がラジオやテレビジョン受信機に近接して使用されると 、 受信障害を引き起こ すことがあります 。 取扱説明書に従って正しい取り扱いをして下さい 。 VCCI-B KC인증서 상호: (주)엠에스아이코리아 제품명: 메인보드 모델명: 10-7E61 제조년월: 2025년 R-R-MSI-10-7E61 제조자 및 제조국가: MSI/중국...

  • Page 69: Battery Information

    Battery Information European Union: Batteries, battery packs, and accumulators should not be disposed of as unsorted household waste. Please use the public collection system to return, recycle, or treat them in compliance with the local regulations. BSMI: 廢電池請回收 For better environmental protection, waste batteries should be collected separately for recycling or special disposal.

  • Page 70: Environmental Policy

    Chemical Substances Information In compliance with chemical substances regulations, such as the EU REACH Regulation (Regulation EC No. 1907/2006 of the European Parliament and the Council), MSI provides the information of chemical substances in products at: https://csr.msi.com/global/index Environmental Policy The product has been designed to enable proper reuse of parts and ●...
  • Page 71 2008 № 1057. Việt Nam RoHS Kể từ ngày 01/12/2012, tất cả các sản phẩm do công ty MSI sản xuất tuân thủ Thông tư số 30/2011/TT-BCT quy định tạm thời về giới hạn hàm lượng cho phép của một số hóa chất độc hại có...

  • Page 72: Copyright And Trademarks Notice

    Copyright and Trademarks Notice Copyright © Micro-Star Int’ l Co., Ltd. All rights reserved. The MSI logo used is a registered trademark of Micro-Star Int’ l Co., Ltd. All other marks and names mentioned may be trademarks of their respective owners. No warranty as to accuracy or completeness is expressed or implied.

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