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Green Micro-ATX server motherboard with silver AM5 socket, four black DDR5 DIMM slots, multiple PCIe slots, two M.2 sockets

ASRock Rack

ASRock Rack B650D4U server motherboard AM5 DDR5

SKU CH-93KF-PPZC7 MPN B650D4U

Micro-ATX server board for single AMD EPYC or Ryzen CPUs with four DDR5 ECC slots, PCIe 5.0 x16 and x4, dual 1 GbE LAN and IPMI

  • CPU Socket TypeSingle Socket AM5 (LGA 1718)
  • CPU TypeSupports AMD EPYC 4004 and AMD Ryzen 8000/7000 Series Proces
  • Number of Processor Support1
  • CPU FeaturesThermal Design Power: Up to 170W by proper cooling solution
  • North BridgeAMD B650E
  • Memory Slots4 DIMM slots (2DPC) DDR5 288-pin ECC/non-ECC UDIMM

Style ASRock rack B650D4U

Les versions barrées existent, mais ne sont pas disponibles ici.

  • Supports AMD EPYC 4005 and Ryzen 9000 series processors
  • DDR5 ECC memory up to 48 GB per DIMM
  • PCIe 5.0 x16 slot for high-bandwidth add-in cards
  • Dual 1 GbE Intel i210 LAN ports for reliable connectivity
  • Dedicated IPMI LAN with Aspeed AST2600 remote management

AM5 server board for EPYC and Ryzen CPUs

The ASRock Rack B650D4U is a Micro-ATX server motherboard built around the AMD B650E chipset. It accepts a single AM5 processor from the EPYC 4004 or Ryzen 7000 and 8000 series with a thermal design power up to 170W when paired with adequate cooling. The board targets small-form-factor servers and workstations that need ECC memory support and remote management in a compact footprint.

Check CPU cooler clearance and memory population

Verify that your chassis can accommodate a cooler rated for up to 170W TDP within the Micro-ATX 9.6-inch square layout. The four DDR5 DIMM slots run at 5200 MHz with one module per channel and drop to 3600 MHz when both channels are populated per channel. Maximum capacity per DIMM is 48GB, so plan module density before ordering.

Replaces older AM4 server boards

This board upgrades platforms that previously used AM4 sockets by adding PCIe 5.0 x16 and x4 slots from the CPU plus a PCIe 5.0 M.2 slot. Dual 1GbE Intel i210 ports and a dedicated IPMI LAN give basic remote management. The jump is worthwhile when you need DDR5 ECC support, higher memory bandwidth, and Gen5 expansion in a Micro-ATX form factor.

Points forts

  • Supports AMD EPYC 4005 and Ryzen 9000 series processors
  • DDR5 ECC memory up to 48 GB per DIMM
  • PCIe 5.0 x16 slot for high-bandwidth add-in cards
  • Dual 1 GbE Intel i210 LAN ports for reliable connectivity
  • Dedicated IPMI LAN with Aspeed AST2600 remote management

Caractéristiques

BrandAsRock Rack
ModelB650D4U
CPU Socket TypeSingle Socket AM5 (LGA 1718)
CPU TypeSupports AMD EPYC 4004 and AMD Ryzen 8000/7000 Series Processors
Number of Processor Support1
CPU FeaturesThermal Design Power: Up to 170W by proper cooling solution
North BridgeAMD B650E
Memory Slots4 DIMM slots (2DPC)
DDR5 288-pin ECC/non-ECC UDIMM
Memory Standard5200 MHz (1DPC); 3600 MHz (2DPC)
Maximum Memory SupportedMax. Capacity per DIMM: 48GB
ECC SupportedYes
PCI Express 5.0 x16SLOT6: PCIe5.0 x16 [CPU]
PCI Express x4SLOT7: PCIe5.0 x4 [CPU]
PCI Express x1SLOT4: PCIe4.0 x1 [FCH]
SATA4 x SATA 6.0Gb/s
M.21 M-key (PCIe5.0 x4), supports 2280/2242 form factor [CPU]
1 M-key (PCIe4.0 x4), supports 2280/2242 form factor [FCH]
Onboard Video ChipsetAspeed AST2600
LAN ChipsetIntel i210: 2 RJ45 (1GbE)
1 Realtek RTL8211F for dedicated management GLAN
LAN Speed10/100/1000Mbps
Back I/O PortsUID Button/LED: 1 UID button w/ LED
VGA Port: 1 DB15 (VGA), 1 DisplayPort, 1 HDMI
Serial Port: 1 DB9 (COM)
USB 3.2 Gen1 Port: 4 Type-A (USB3.2 Gen1)
RJ45: 2 RJ45 (1GbE), 1 dedicated IPMI
Other ConnectorsPower Connector: 1 (24-pin, ATX main power), 2 (8-pin, ATX 12V)
Auxiliary Panel Header: 1 (18-pin): chassis intrusion, system fault LED, LAN activity LED
System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
VGA header: 1
Speaker Header: 1
Buzzer: 1
Fan Header: 7 (6-pin)
TPM Header: 1 (13-pin, SPI)
SMBus header: 1
PMBus header: 1
IPMB Header: 1
Clear CMOS: 1
Others: 1 (3-pin, 80 debug port header)
Form FactorMicro ATX
Dimensions (W x L)9.6" x 9.6"
Poids d’expédition1.19 kg
Dimensions du colis244 × 244 × 74 mm

Autres versions de ce modèle

4 de plus dans cette gamme

Même famille, mémoire, ventirad ou fréquence différents — comparez avant de vous décider.

Questions sur cet article

What comes in the box and what do I need to buy separately?

The motherboard includes an Aspeed AST2600 video chipset, two Intel i210 1GbE ports, a dedicated Realtek management LAN, four USB 3.2 Gen1 Type-A ports, HDMI, DisplayPort, VGA, a serial port and four SATA 6.0Gb/s connectors. You must supply an AM5 processor, DDR5 ECC or non-ECC UDIMMs, storage drives and a chassis with Micro-ATX mounting.

Which memory capacity and speed should I choose for the four DDR5 slots?

Each slot accepts up to 48GB DDR5 UDIMM. With one DIMM per channel the board runs at 5200 MHz; populating both channels drops the speed to 3600 MHz. The QVL lists validated 16GB, 32GB and 48GB modules at 4800, 5200 and 5600 MHz, both ECC and non-ECC.

What does the PCIe 5.0 x16 slot deliver once a Ryzen 7000 or EPYC 4004 CPU is installed?

The primary x16 slot (SLOT6) is wired directly to the CPU and operates at PCIe 5.0 x16 bandwidth. A second slot (SLOT7) provides PCIe 5.0 x4 from the CPU, while a third slot (SLOT4) runs at PCIe 4.0 x1 from the chipset.

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