MSI PRO B850M-G

  • Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
  • Supports DDR5 Memory, Dual Channel DDR5 8200+ MT/s (OC)
  • Ultra Performance: Direct 7+2+1 Power System with P-PAK, an 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper and server-grade level material
  • EZ DIY: EZ M.2 Clip II and EZ PCIe Clip II
  • Lightning Fast Game experience: PCIe 5.0 slot and Lightning Gen 5 x4 M.2
  • Audio Boost: Reward your ears with studio-grade sound quality for the most immersive gaming experience
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Specification Details
Chipset AMD B850
CPU Supports AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors
Socket AM5
Memory
Configuration 2x DDR5 UDIMM, Maximum Memory Capacity 128GB
Memory Support DDR5 8200 – 5600 (OC) MT/s / 5600 – 4800 (JEDEC) MT/s
Ryzen 9000 Series Max Overclocking Frequency 1DPC 1R: Up to 8200+ MT/s
1DPC 2R: Up to 8000+ MT/s
Features Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPO
Supports Dual-Channel Mode
Supports Non-ECC, Un-buffered Memory
Supports CUDIMM, Clock Driver Bypass Mode Only*
Notes * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility.
– The DIMM slots on this motherboard have single-sided latches.
– Memory compatibility and supported speeds depend on CPU and configuration. For detailed information, visit https://www.msi.com/support/.
Onboard Graphics
Ports 1x HDMI
Supports HDMI 2.1, maximum resolution 4K 60Hz*
1x DisplayPort
Supports DisplayPort 1.4, maximum resolution 4K 60Hz*
*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on CPU installed.
Expansion Slots
Slots 2x PCI-E x16 Slots
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCI_E1 Slot – PCIe 5.0 x16 (Ryzen 9000 / 7000)
– PCIe 4.0 x8 (Ryzen 8700 / 8600 / 8400)
– PCIe 4.0 x4 (Ryzen 8500 / 8300)
Audio
Codec Realtek ALC897
Channels 7.1-Channel High Definition Audio
Storage
Configuration 2x M.2
M.2_1 (From CPU): PCIe 5.0 x4, supports 2280/2260 devices
M.2_2 (From CPU): PCIe 4.0 x4, supports 2280/2260 devices
4x SATA 6G
M.2_1 Slot – PCIe 5.0 x4 (Ryzen 9000 / 7000)
– PCIe 4.0 x4 (Ryzen 8000)
M.2_2 Slot – PCIe 4.0 x4
– PCIe 4.0 x2 (Ryzen 8500 / 8300)
RAID
Support Supports RAID 0, RAID 1, and RAID 10 for SATA Storage Devices
Supports RAID 0 and RAID 1 for M.2 NVMe Storage Devices
USB
Configuration 2x USB 2.0 (Rear)
4x USB 2.0 (Front)
3x USB 5Gbps Type-A (Rear)
1x USB 5Gbps Type-C (Rear)
2x USB 5Gbps Type-A (Front)
1x USB 10Gbps Type-C (Front)
LAN
Port Realtek 8126VB 5G LAN
Internal I/O
Connectors 1x ATX Power (ATX_PWR)
1x CPU Power (CPU_PWR)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
2x System Fans
2x Front Panels (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x COM Port (JCOM)
3x Addressable V2 RGB (JARGB_V2)
1x RGB LED (JRGB)
1x TPM Header (Supports TPM 2.0)
4x USB 2.0 Ports
2x USB 5Gbps Type-A Ports
1x USB 10Gbps Type-C Port
LED Features
Indicators 4x EZ Debug LED
1x EZ Memory Detection LED
Back Panel Ports
Configuration

  1. DisplayPort
  2. HDMI
  3. USB 5Gbps Type-A
  4. Clear CMOS Button
  5. USB 2.0
  6. 5G LAN
  7. Audio Connectors
  8. USB 5Gbps Type-C
  9. Flash BIOS Button
  10. USB 5Gbps Type-A
Operating System
Support Windows 11 64-bit
Box Content
INCLUDES
PCB INFO
mATX
226mmx243.84mm

Overview

MSI PRO B850M-G

The MSI PRO B850M-G is a compact, high-performance micro-ATX motherboard engineered for professionals, creators, and gamers seeking a powerful and stable platform. Built on the AMD B850 chipset and featuring the AM5 socket, it supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors, ensuring next-generation performance and long-term compatibility.

With dual-channel DDR5 support up to 8200+ MT/s (OC), this board delivers lightning-fast memory speeds for smoother multitasking and improved productivity. Its Direct 7+2+1 Power System with P-PAK components, reinforced by an 8-pin CPU power connector, Core Boost, and Memory Boost technologies, provides exceptional power delivery and system efficiency. The 6-layer PCB made from 2 oz thickened copper and server-grade materials enhances durability, stability, and cooling under intense workloads.

MSI’s Frozr Guard thermal design ensures optimal temperature management with an extended heatsink, 7 W/mK MOSFET thermal pads, additional choke pads, and M.2 Shield Frozr for SSD protection. The motherboard also features PCIe 5.0 and Lightning Gen 5 x4 M.2 slots, delivering cutting-edge performance for GPUs and high-speed storage.

For seamless connectivity, the integrated 5G LAN provides fast, secure, and reliable networking, while Audio Boost technology delivers crystal-clear, studio-grade sound for immersive experiences.

The MSI PRO B850M-G combines power, performance, and reliability in a sleek micro-ATX form factor—perfect for modern professionals and gamers who demand efficiency and excellence.

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