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Green EEB server motherboard with dual CPU sockets, sixteen DDR5 DIMM slots, multiple PCIe x16 slots and dual 10GbE RJ45 ports

ASRock Rack

ASRock Rack GNR2D16-2T EEB server motherboard 2 CPU 16 DDR5 6400

SKU CH-5Z57-DMXVC MPN GNR2D16-2T

Dual-socket EEB board with sixteen DDR5 6400 slots, five PCIe 5.0 x16 slots, one x8 slot, two M.2 connectors and dual 10 GbE LAN

  • ProcessorSupports Intel Xeon 6700E-series processors
  • Form factorEEB
  • Network speed10 Gbit/s
  • Supported CPU count2
  • RAM slots16 x DDR5 288-pin
  • Supported memoryDDR5 6400
  • Dual Intel Xeon 6700E-series processors deliver high multi-thread throughput
  • Sixteen DDR5 6400 RDIMM slots support up to 2TB registered memory
  • Five PCIe 5.0 x16 plus CXL 2.0 slots enable dense accelerator deployment
  • Dual 10Gbps Intel X710 LAN provides fast server connectivity
  • EEB 12" x 13" form factor fits standard rack chassis

Dual Xeon 6700E server platform

The ASRock Rack GNR2D16-2T is an EEB form-factor motherboard built for two Intel Xeon 6700E-series processors. Sixteen DDR5 288-pin slots support up to 2 TB of registered DDR5 6400 memory. Five PCIe 5.0 x16 slots, one x8 slot and an MCIO x8 connector provide high-bandwidth expansion for compute or storage cards.

Suited for multi-socket memory-intensive workloads

This board targets applications that need dual-processor scaling and large memory capacity such as virtualisation hosts, database servers or HPC clusters. Builders who require only a single CPU, fewer than sixteen DIMM slots or a smaller ATX chassis should consider a different form factor.

DDR5 6400 registered memory requirement

All sixteen slots accept only registered DDR5 6400 RDIMMs; unbuffered or slower modules are not supported. Matching the memory standard is the single specification that determines whether this motherboard fits the build.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $863.99
Pricier than about 91% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameAsRock Rack
Model nameGNR2D16-2T
Processor
ProcessorSupports Intel Xeon 6700E-series processors
Supported CPU count2
Memory
RAM slots16 x DDR5 288-pin
Supported memoryDDR5 6400
Max supported RAM2 TB
Storage
M.2 slots2 M-key (PCIe5.0 x2), supports 22110/2280 form factor [CPU0]
Connectivity
Network speed10 Gbit/s
Ethernet controllerIntel X710-AT2
Maximum network speed2 × 10 Gbit/s
Ports & slots
PCIe 5.0 x16 slotsSLOT1:PCIe5.0 / CXL2.0 x16 [CPU1]
SLOT2:PCIe5.0 / CXL2.0 x16 [CPU0]
SLOT3:PCIe5.0 / CXL2.0 x16 [CPU1]
SLOT4:PCIe5.0 / CXL2.0 x16 [CPU0]
SLOT5:PCIe5.0 / CXL2.0 x16 [CPU1]
Additional slots1 MCIO (PCIe5.0 / CXL2.0 x8) [CPU0]
Rear panel ports1 x D-Sub / 2 x LAN (RJ45) / 2 x USB 3.2 Gen 1 Type-A
Onboard USB headersUSB 3.2 (Gen1) Header: 1 header (19-pin, 2 USB3.2 Gen1)
Size & build
Form factorEEB
Width and length12 in × 13 in
Shipping weight2.52 kg
Package size406 × 381 × 76 mm
More details
Registered statusYes
PCI express x8SLOT6:PCIe5.0 / CXL2.0 x8 [CPU0]
BIOSAMI 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

Questions about this item

What chassis clearance does the 12 x 13 inch EEB form factor require?

The board follows the EEB specification at 12 inches by 13 inches, so the chassis must provide mounting holes and internal space for those exact dimensions.

Which power connectors must be populated for dual Intel Xeon 6700E-series processors?

Connect the 24-pin ATX main power plus all four 8-pin ATX 12V headers; each CPU socket needs its own 12V supply for stable operation.

When should the 13-pin SPI TPM module be replaced or upgraded?

Replace the module only if a firmware update cannot be applied through the AMI UEFI BIOS or if the physical header shows damage during service.

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