MSI B850 MLG EDITION Motherboards

MSI B850 MLG EDITION Motherboards

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Chipset: AMD B850; CPU socket: AM5 for Ryzen 7000/9000 series; Memory: four DDR5 UDIMM slots, dual‑channel, up to 8400 MT/s (1DPC 1R) and 6400 MT/s otherwise, supporting AMD EXPO and overclocking; Onboard graphics: HDMI 2.1 (FRL) up to 8K 60 Hz on CPUs with integrated graphics.

Expansion: three PCIe x16 slots (PCIe 5.0/4.0 depending on CPU); Storage: four M.2 slots (PCIe 5.0 x4 or PCIe 4.0 x4/2) with RAID 0/1/10 for NVMe; Audio: Realtek ALC4080 7.1‑channel codec, 32‑bit/384 kHz, S/PDIF; LAN: Realtek 8126 5 Gbps.

Internal I/O: ATX and CPU power connectors, 8‑pin PCIe power, multiple fan headers, EZ‑Connect, front‑panel, chassis intrusion, RGB and addressable LED connectors, TPM 2.0 header.

Specifications

Chipset AMD B850
CPU Socket AM5
Memory 4x DDR5 UDIMM Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8400+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6400+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO TM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* * 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 only have single-sided latche. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
Onboard Graphics Support HDMI TM 2.1 with FRL port, supporting a maximum resolution of 8K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Slot 3x PCI-E x16 slot (Qty) PCI_E1 slot • Supports PCIe 5.0 x16 (For Ryzen™ 9000/ 7000 Series processors) • Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor) *PCI_E3 slot will run x2 speed when installing devices in the M.2_3 slot
Audio Realtek ® ALC4080 Codec 7.1-Channel USB High-Performance Audio Supports up to 32-Bit/384 kHz playback on front panel Supports S/PDIF output
Storage 4x M.2 (Qty) M.2_1 slot • 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) M.2_2 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8700/ 8600 / 8400 Series processors) • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors)
RAID • Supports RAID 0, RAID 1 and RAID 10* for M.2 NVMe storage devices *RAID 10 for M.2 NVMe storage devices is only supported by AMD Ryzen 9000/7000 series CPU
LAN 1x Realtek ® 8126 5G LAN
Internal IO 1x Power Connector(ATX_PWR) 2x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 6x System Fan 1x EZ Conn-header (JAF_2) 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0)
WIRELESS LAN & BLUETOOTH 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 Supports Bluetooth ® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.
LED FEATURE 4x EZ Debug LED 1x EZ Digit Debug LED 1x EZ Memory Detection LED
BACK PANEL PORTS Clear CMOS Button USB 10Gbps Type-A USB 5Gbps Type-A USB 2.0 5G LAN Wi-Fi / Bluetooth Audio Connectors Flash BIOS Button HDMI™ USB 10Gbps Type-C USB 10Gbps Type-A USB 10Gbps Type-C Optical S/PDIF Out
OPERATING SYSTEM Support for Windows ® 11 64-bit

Key Features

  • AMD B850 Chipset & AM5 Socket: Optimized for Ryzen™ 9000/7000 series processors with next‑gen performance.
  • DDR5 Memory Support: Four DDR5 UDIMM slots, dual‑channel, up to 8400+ MT/s (1DPC 1R) and up to 6400+ MT/s for other configurations.
  • PCIe 5.0 Expansion: One PCI‑E 5.0 x16 slot and two M.2 slots supporting PCIe 5.0 x4 for ultra‑fast graphics and NVMe storage.
  • Wi‑Fi 7 & Bluetooth 5.4: Pre‑installed module delivers up to 5.8 Gbps (320 MHz) and Bluetooth 5.4 connectivity.
  • 5 Gbps Ethernet: Realtek 8126 LAN controller provides high‑speed wired networking.
  • HDMI 2.1 with FRL: Supports up to 8K 60 Hz output (CPU must have integrated graphics).
  • Premium Audio: Realtek ALC4080 7.1‑channel USB codec, 32‑bit/384 kHz playback, and S/PDIF output.
SKU: MSI-B850MLG Category:
Chipset AMD B850
CPU Socket AM5
Memory 4x DDR5 UDIMM Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8400+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6400+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO TM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* * 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 only have single-sided latche. • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
Onboard Graphics Support HDMI TM 2.1 with FRL port, supporting a maximum resolution of 8K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Slot 3x PCI-E x16 slot (Qty) PCI_E1 slot • Supports PCIe 5.0 x16 (For Ryzen™ 9000/ 7000 Series processors) • Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor) *PCI_E3 slot will run x2 speed when installing devices in the M.2_3 slot
Audio Realtek ® ALC4080 Codec 7.1-Channel USB High-Performance Audio Supports up to 32-Bit/384 kHz playback on front panel Supports S/PDIF output
Storage 4x M.2 (Qty) M.2_1 slot • 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) M.2_2 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8700/ 8600 / 8400 Series processors) • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors)
RAID • Supports RAID 0, RAID 1 and RAID 10* for M.2 NVMe storage devices *RAID 10 for M.2 NVMe storage devices is only supported by AMD Ryzen 9000/7000 series CPU
LAN 1x Realtek ® 8126 5G LAN
Internal IO 1x Power Connector(ATX_PWR) 2x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 6x System Fan 1x EZ Conn-header (JAF_2) 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0)
WIRELESS LAN & BLUETOOTH 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 Supports Bluetooth ® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.
LED FEATURE 4x EZ Debug LED 1x EZ Digit Debug LED 1x EZ Memory Detection LED
BACK PANEL PORTS Clear CMOS Button USB 10Gbps Type-A USB 5Gbps Type-A USB 2.0 5G LAN Wi-Fi / Bluetooth Audio Connectors Flash BIOS Button HDMI™ USB 10Gbps Type-C USB 10Gbps Type-A USB 10Gbps Type-C Optical S/PDIF Out
OPERATING SYSTEM Support for Windows ® 11 64-bit

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