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Green Deep Micro-ATX server motherboard with eight DDR5 DIMM slots, dual SFP28 ports and multiple MCIO connectors

ASRock Rack

ASRock Rack GNRD8UD-2Q server motherboard 1 TB DDR5 6400 25 Gbps LAN

SKU CH-JTJE-8SVP6 MPN GNRD8UD-2Q

Deep Micro-ATX board supports Intel Xeon 6700E-series CPUs with eight DDR5 6400 RDIMM slots up to 1 TB, dual 25 Gbps SFP28 LAN, two PCIe 5.0 x16 slots.

  • CPU TypeSupports Intel Xeon 6700E-series processors
  • Number of Processor Support1
  • Memory Slots8 x DDR5 288-pin
  • Memory StandardDDR5 6400
  • Maximum Memory Supported1TB
  • RegisteredYes
  • Supports Intel Xeon 6700E-series processors for high-density compute
  • Eight DDR5 6400 RDIMM slots scale to 1 TB registered memory
  • Two PCIe 5.0 x16 slots plus six MCIO x8 lanes enable flexible expansion
  • Dual 25 GbE SFP28 ports driven by Intel E810-XXVAM2 controller
  • Deep Micro-ATX 9.6 x 10.5 inch form factor fits compact server chassis

Deep Micro-ATX Server Board

The ASRock Rack GNRD8UD-2Q is a Deep Micro-ATX server motherboard built for single-socket Intel Xeon 6700E-series processors. It measures 9.6 by 10.5 inches and provides eight 288-pin DDR5 slots supporting registered DIMMs at 6400 MT/s. Total memory capacity reaches 1 TB across the eight channels.

Suits Dense 25 GbE Deployments

This board suits builders who need dual 25 Gbps SFP28 links from the Intel E810-XXVAM2 controller in a compact chassis. It is not for buyers who require more than two x16 PCIe 5.0 slots or who need onboard 10 GbE RJ45 ports instead of SFP28.

1 TB DDR5 6400 Ceiling

The maximum supported memory is 1 TB of DDR5 6400 registered DIMMs across eight slots. Population rules and qualified vendor lists determine which specific modules reach that ceiling.

Highlights

  • Supports Intel Xeon 6700E-series processors for high-density compute
  • Eight DDR5 6400 RDIMM slots scale to 1 TB registered memory
  • Two PCIe 5.0 x16 slots plus six MCIO x8 lanes enable flexible expansion
  • Dual 25 GbE SFP28 ports driven by Intel E810-XXVAM2 controller
  • Deep Micro-ATX 9.6 x 10.5 inch form factor fits compact server chassis

Specifications

BrandAsRock Rack
ModelGNRD8UD-2Q
CPU TypeSupports Intel Xeon 6700E-series processors
Number of Processor Support1
Memory Slots8 x DDR5 288-pin
Memory StandardDDR5 6400
Maximum Memory Supported1TB
RegisteredYes
PCI Express 5.0 x16SLOT6: PCIe5.0 / CXL2.0 x16
SLOT4: PCIe5.0 / CXL2.0 x16
Other Slots4 MCIO (PCIe5.0 / CXL2.0 x8) [CPU0]
2 MCIO (PCIe5.0 / CXL2.0 x8) [CPU0]*
*MCIO5/6 only function with with selected processors
M.22 M-key (PCIe5.0 x4), supports 2280 form factor
LAN ChipsetIntel E810-XXVAM2
LAN Speed25Gbps
Max LAN Speed2 x 25Gbps
Back I/O Ports1 x D-Sub / 2 x SFP28 / 2 x USB 3.2 Gen 1 Type-A
Onboard USBUSB 3.2 (Gen1) Header: 1 header (19-pin, 2 USB3.2 Gen1)
USB 2.0 Header: 1 header (9-pin, 2 USB2.0)
Other ConnectorsPower Connector: 1 Micro-Fit (4-pin, ATX PSU signal) w/ ATX 24-pin adapter cable, 3 (8- pin, ATX 12V)
Other Power Connectors: 1 (6-pin) for HDD power
Auxiliary Panel Header: 1 (18-pin): chassis intrusion, system fault LED, LAN1/LAN2 activity LED, locate, SMBus
System Panel: 1 (9-pin): power switch, reset switch, system power LED, HDD activity LED
COM Header: 1
Speaker Header: 1
Fan Header: 8 (6-pin)
TPM Header: 1 (13-pin, SPI)
VROC header: 1
HSBP: 1
SMBus header: 2
PMBus header: 1
IPMB Header: 1
Clear CMOS: 1 (contact pads)
NMI Header: 1
BIOS FeatureAMI UEFI BIOS; 512Mb SPI Flash ROM
Plug and Play, ACPI 4.0 and above compliance wake up events, SMBIOS 3.4 and above, ASRock Rack instant flash
Form FactorDeep Micro-ATX
Dimensions (W x L)9.6" x 10.5"
Shipping weight1.54 kg
Package size343 × 305 × 76 mm

Questions about this item

How do I install the Intel Xeon 6700E-series processor into the single socket on this board?

Align the processor with the socket keying, lower it evenly, then secure the retention mechanism before attaching the heatsink; the step most often missed is connecting all three 8-pin ATX 12V power cables to the board.

Which components on this motherboard will need replacement over time?

The TPM module uses a 13-pin SPI header and the firmware resides on a 512Mb SPI flash ROM; both are socketed and can be swapped if a future security update or failure requires it.

What is the first limit reached when the dual 25GbE ports run at full throughput for extended periods?

The Intel E810-XXVAM2 controller tops out at 2 x 25Gbps, so aggregate bandwidth saturates before the PCIe 5.0 x16 or MCIO x8 links become a bottleneck.

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