MSI PRO B840-P WIFI Motherboard – AMD Ryzen™ 9000/8000/7000 Series, DDR5 up to 8000+ MT/s (OC), Frozr Guard Cooling, Wi-Fi 7, PCIe 4.0, Audio Boost, and EZ DIY Features for Reliable Performance and Productivity

Chipset

• Model: AMD B840

CPU

• Supported Processors:
  • AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
• Socket: AM5

Memory

• Slots: 4x DDR5 UDIMM slots
• Maximum Capacity: 256GB
• Supported Memory Speeds:
  • Overclocked (OC): 8000 - 5600 MT/s
  • JEDEC Standard: 5600 - 4800 MT/s
• Max. Overclocking Frequencies (Ryzen™ 9000 Series):
  • 1DPC 1R: Up to 8000+ MT/s
  • 1DPC 2R: Up to 6400+ MT/s
  • 2DPC 1R: Up to 6400+ MT/s
  • 2DPC 2R: Up to 4800+ MT/s
• Memory Features:
  • Dual-Channel Mode
  • Non-ECC, Un-buffered Memory
  • Supports CUDIMM (Clock Driver bypass mode only)
  • Supports AMD POR Speed and JEDEC Speed
  • Supports Memory Overclocking and AMD EXPO™
• Note:
  • CUDIMM support and POR boot frequency may vary by CPU series. Manual overclocking is 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.

Onboard Graphics

• Ports:
  • 1x HDMI™ (Supports HDMI™ 2.1, max resolution of 4K @ 60Hz )
• Note: Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the installed CPU.

Expansion Slots

• PCIe Configuration:
  • PCI_E1: PCIe 4.0 x16 slot (From CPU)
    • Supports PCIe 4.0 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 processors)
  • PCI_E2: PCIe 3.0 x1 slot (From Chipset)
  • PCI_E3: PCIe 3.0 x1 slot (From Chipset)
  • PCI_E4: PCIe 3.0 x4 slot (From Chipset)
  • PCI_E5: PCIe 3.0 x1 slot (From Chipset)

Audio

• Codec: Realtek® ALC897
• Features:
  • 7.1-Channel High-Definition Audio

Storage

• M.2 Slots:
  • M.2_1: PCIe 4.0 x4 (From CPU), supports 2280/2260 devices
  • M.2_2:
    • Supports up to PCIe 4.0 x4 (For Ryzen™ 9000/7000 Series processors)
    • Supports up to PCIe 3.0 x4 (For Ryzen™ 8700/8600/8400 Series processors)
    • Supports up to PCIe 3.0 x2 (For Ryzen™ 8500/8300 Series processors)
    • Supports 22110/2280/2260 devices
• SATA Ports: 4x SATA 6Gb/s ports
• RAID Support: RAID 0, RAID 1, and RAID 10 for SATA storage devices
• Note: Refer to the manual for M.2 SSD heatsink restrictions.

USB

• Rear Ports:
  • 4x USB 2.0 Type-A
  • 2x USB 5Gbps Type-A
  • 1x USB 10Gbps Type-A
  • 1x USB 10Gbps Type-C
• Front Ports:
  • 4x USB 2.0
  • 2x USB 5Gbps Type-A
  • 1x USB 5Gbps Type-C

LAN

• Controller: Realtek® 8125D 2.5G LAN

Wireless & Bluetooth

• Wireless Module: Wi-Fi 7 (Pre-installed in M.2 Key-E slot)
• Features:
  • Supports MU-MIMO TX/RX
  • Frequency Bands: 2.4GHz, 5GHz, 6GHz (320MHz)
  • Maximum Speed: Up to 5.8Gbps
  • Wi-Fi Standards: 802.11 a/b/g/n/ac/ax/be
• Bluetooth:
  • Version: Bluetooth® 5.4 (supports MLO, 4KQAM)
  • Note: 6GHz band support depends on regional regulations. Wi-Fi 7 and Bluetooth 5.4 require Windows 11 version 24H2.

Back Panel Ports

• Connectivity:
  • Clear CMOS Button
  • USB 10Gbps Type-A
  • USB 2.0 Type-A
  • 2.5G LAN Port
  • Wi-Fi / Bluetooth Antenna Connector
  • Audio Connectors
  • Flash BIOS Button
  • HDMI™ Port
  • USB 10Gbps Type-C
  • USB 5Gbps Type-A

Internal I/O Connectors

• Fan Headers:
  • 1x CPU Fan
  • 1x Combo Fan (Pump_Sys Fan)
  • 4x System Fans
• Power Connectors:
  • 1x ATX Power Connector (24-pin)
  • 1x CPU Power Connector (8-pin)
• Other Headers:
  • 2x Front Panel Connectors (JFP)
  • 1x Chassis Intrusion Header (JCI)
  • 1x Front Audio Header (JAUD)
  • 1x COM Port Header (JCOM)
  • 1x Tuning Controller Connector (JDASH)
  • 2x Addressable V2 RGB LED Connectors (JARGB_V2)
  • 1x RGB LED Connector (JRGB)
  • 1x TPM Pin Header (Supports TPM 2.0)
  • 4x USB 2.0 Ports
  • 2x USB 5Gbps Type-A Ports
  • 1x USB 5Gbps Type-C Port

LED Features

• EZ Debug LEDs: 4x EZ Debug LEDs

Operating System

• Supported OS: Windows® 11 64-bit

Form Factor

• Size: ATX Form Factor
• Dimensions: 12" x 9.6" (30.5 cm x 24.4 cm)