ASRock Rack B650D4U Server Motherboard - AMD Ryzen 7000 Series Platform

The ASRock Rack B650D4U delivers professional-grade server capabilities in a Micro-ATX form factor, designed for AMD Ryzen 7000 series processors. Built on the AMD B650E chipset with AM5 socket (LGA 1718), this motherboard supports processors up to 170W with proper cooling solutions, making it suitable for demanding server and workstation applications.

Memory and Storage Configuration

Equipped with 4 DIMM slots supporting both ECC and non-ECC DDR5 UDIMM memory up to 128GB, the B650D4U offers dual-channel memory architecture with speeds up to 5200MHz (1DPC) or 3600MHz (2DPC). Storage flexibility includes 4 SATA 6Gb/s ports, plus two M.2 slots: one PCIe 5.0 x4 and one PCIe 4.0 x4, both supporting 2280/2242 form factors. RAID functionality is integrated for enhanced data protection.

Enterprise-Class Networking and Remote Management

Dual Intel i210 Gigabit Ethernet controllers provide reliable network connectivity, while the dedicated IPMI port enables full remote management capabilities. The ASPEED AST2600 BMC allows administrators to monitor and control the system remotely, including hardware monitoring of CPU, DDR, motherboard, chipset, and M.2 slot temperatures. Fan speed control and voltage monitoring across 13 different rails ensure optimal system stability.

Expansion and Graphics Options

The PCIe configuration includes one PCIe 5.0 x16 slot, one PCIe 5.0 x4 slot, and one PCIe 4.0 x1 slot for maximum expansion flexibility. Graphics output is provided through the ASPEED AST2600 (VGA) and AMD processor integrated graphics (HDMI and DisplayPort), supporting multiple display configurations.

Professional BIOS and Hardware Monitoring

The AMI UEFI BIOS features a 256Mb SPI Flash ROM with ACPI 6.4 compliance and SMBIOS 3.5 support. Comprehensive hardware monitoring tracks temperatures across six zones, provides multi-speed fan control with CPU Quiet Fan technology, and monitors 13 voltage rails including VCORE, VSOC, VMEM, and all power delivery voltages.

Connectivity and I/O

Rear panel I/O includes UID button with LED, VGA, DisplayPort, HDMI, serial port (DB9), 4x USB 3.2 Gen1 Type-A ports, dual RJ45 Gigabit Ethernet, and dedicated IPMI port. Internal headers provide extensive connectivity options including 24-pin ATX power, dual 8-pin ATX 12V, 7 fan headers, TPM, SMBus, PMBus, and IPMB headers.

Operating Specifications

Designed for reliable 24/7 operation, the B650D4U operates within 10°C to 35°C temperature range and stores safely from -40°C to 70°C. The 9.6" x 9.6" Micro-ATX form factor fits standard server chassis while delivering enterprise-grade features typically found in larger form factors.

B650D4U

• Micro-ATX (9.6"x 9.6")
• Support AMD Ryzen 7000 series Processors
• 4 DIMM slots (2DPC), supports DDR5 ECC/non-ECC UDIMM
• 1 PCIe5.0 x16, 1 PCIe5.0 x4, 1 PCIe4.0 x1
• Supports 1 M.2 (PCIe5.0 x4), 1 M.2 (PCIe4.0 x4)
• 2 RJ45 (1GbE) by Intel® i210
• 4 SATA 6Gb/s
• 1 HDMI, 1 DisplayPort
• Remote management (IPMI)

Description

Specification

• Motherboard Type: Server / Workstation
• Form Factor: Micro ATX
• Socket: AMD AM5
• Chipset: AMD B650E
• #Hide#DDR Type: DDR5
• CPU Support: Supports AMD Ryzen 7000 series Processors
  Single Socket AM5 (LGA 1718)
  Up to 170W with proper cooling solution
  
  Click here for CPU support list
• RAM Technology: DDR5 (Dual Channel)
• RAM Slots: 4 x DIMM
• RAM Speeds: "5200MHz (1DPC); 3600MHz (2DPC)
  ECC/non-ECC UDIMM"
• Maximum Memory: 128GB
• Graphics: Yes
• Graphics Ports: "ASPEED AST2600:
  1 DB15 (VGA), 1 (15-pin) header
  
  AMD Processors with Graphics:
  1 HDMI, 1 DisplayPort"
• PCI/PCI Express: PCIe x 16 - SLOT6: PCIe5.0 x16 [CPU]
  PCIe x 4 - SLOT7: PCIe5.0 x4 [CPU]
  PCIe x 1 - SLOT4: PCIe4.0 x1 [FCH]
• Storage: "4 x SATA III
  1 x M-key (PCIe5.0 x4), supports 2280/2242 form factor [CPU]
  1 x M-key (PCIe4.0 x4), supports 2280/2242 form factor [FCH]"
• RAID: Yes
• LAN: Dual GB LAN & Dedicated IPMI LAN port
• USB Ports Supported: 4 x USB 3.2 Gen1 Type- A (at back)
• Back Panel I/O Ports: 1 x UID button w/ LED
  1 x DB15 (VGA)
  1 x DisplayPort
  1 x HDMI
  1 x Serial Port DB9
  4 x USB3.2 Gen1 Type-A
  2 x RJ45 (1GbE)
  1 x dedicated IPMI
• Internal I/O Connectors: "1 x 24-pin, ATX main power
  2 x 8-pin, ATX 12V
  1 x Auxiliary Panel Header (18-pin)
  1 x System Panel
  1 x VGA header
  1 x Speaker Header
  1 x Buzzer
  7 x Fan Header (6-pin)
  1 x TPM Header (13-pin, SPI)
  1 x SMBus header
  1 x PMBus header
  1 x IPMB Header"
• .: "1 x Clear CMOS
  1 x 3-pin, 80 debug port header"
• Additional Features: See Overview
• Package Type: Retail
• Package Weight: 1.2650 kg
• Warranty: 3 Years
• #Hide#M.2 Slot(s): Yes (M.2)
• #Hide#No. LAN Ports: 2 x LAN
• #Hide#Max LAN Speed: GB LAN