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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

  • CPU TypeSupports Intel Xeon 6700E-series processors
  • Number of Processor Support2
  • Memory Slots16 x DDR5 288-pin
  • Memory StandardDDR5 6400
  • Maximum Memory Supported2TB
  • RegisteredYes
  • 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.

Highlights

  • 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

Specifications

BrandAsRock Rack
ModelGNR2D16-2T
CPU TypeSupports Intel Xeon 6700E-series processors
Number of Processor Support2
Memory Slots16 x DDR5 288-pin
Memory StandardDDR5 6400
Maximum Memory Supported2TB
RegisteredYes
PCI Express 5.0 x16SLOT1: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]
PCI Express x8SLOT6:PCIe5.0 / CXL2.0 x8 [CPU0]
Other Slots1 MCIO (PCIe5.0 / CXL2.0 x8) [CPU0]
M.22 M-key (PCIe5.0 x2), supports 22110/2280 form factor [CPU0]
LAN ChipsetIntel X710-AT2
LAN Speed10Gbps
Max LAN Speed2 x 10Gbps
Back I/O Ports1 x D-Sub / 2 x LAN (RJ45) / 2 x USB 3.2 Gen 1 Type-A
Onboard USBUSB 3.2 (Gen1) Header: 1 header (19-pin, 2 USB3.2 Gen1)
Other ConnectorsPower Connector: 1 (24-pin, ATX main power), 4 ( 8-pin, ATX 12V)
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 (9-pin)
Fan Header: 8 (6-pin)
TPM Header: 1 (13-pin, SPI)
HSBP: 2
SMBus header: 2
PMBus header: 1
IPMB Header: 1
Clear CMOS: 1 (contact pads)
Others: 1 RAID header, 1 Micro SD card slot
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 FactorEEB
Dimensions (W x L)12" x 13"
Shipping weight2.52 kg
Package size406 × 381 × 76 mm

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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