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Green rectangular ATX server motherboard with silver CPU socket, eight black DDR4 slots, seven PCIe slots, blue SATA ports

ASRock Rack

ASRock Rack SPC621D8-2L2T server motherboard

SKU CH-WS1D-WTHMK MPN SPC621D8-2L2T

ATX server board with single LGA 4189 socket for 3rd Gen Intel Xeon Scalable CPUs, eight DDR4 3200 RDIMM/LRDIMM slots up to 256 GB per DIMM, four PCIe 4.0 x16 and three PCIe 4.0 x8 slots.

  • ProcessorSupports 3rd Gen Intel Xeon Scalable processors
  • Form factorATX
  • CPU socketSingle Socket P+ (LGA 4189)
  • Network speed10 Gbit/s
  • ChipsetIntel C621A
  • Number of DDR4 slots8 × 288-pin
  • Supports 3rd Gen Intel Xeon Scalable processors via LGA 4189 socket
  • Eight DDR4 3200 RDIMM/LRDIMM slots with 3DS and Optane support
  • Four PCIe 4.0 x16 and three PCIe 4.0 x8 expansion slots
  • Dual 10GbE Intel X710-AT2 plus dual 1GbE Intel I210 LAN
  • Two M.2 slots (PCIe 3.0 x4/x1 or SATA 6Gb/s) plus eight SATA 6Gb/s ports

ATX server board for Xeon Scalable

The ASRock Rack SPC621D8-2L2T is an ATX motherboard built around the Intel C621A chipset. It accepts a single LGA 4189 processor from the 3rd Gen Intel Xeon Scalable family. Eight DDR4 slots support RDIMM, LRDIMM, 3DS variants and Intel Optane Persistent Memory 200 series at up to 3200 MHz.

Suits dense compute and storage nodes

Builders who need four full-length PCIe 4.0 x16 slots plus three x8 slots, dual 10 GbE and dual 1 GbE ports, and eight SATA 6 Gb/s connectors will find the I/O coverage sufficient. Systems requiring more than one CPU socket, 10 GbE ports beyond the two provided, or onboard Wi-Fi should evaluate alternative platforms.

Single-socket LGA 4189 constraint

The board only fits one processor in the LGA 4189 socket, so total core count and memory-channel bandwidth are limited to what a single 3rd Gen Xeon Scalable CPU delivers. Multi-socket scaling is not possible on this platform.

How it compares

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

Price $516.99
Pricier than about 82% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameAsRock Rack
Model nameSPC621D8-2L2T
Processor
ProcessorSupports 3rd Gen Intel Xeon Scalable processors
CPU socketSingle Socket P+ (LGA 4189)
ChipsetIntel C621A
Memory
DDR4 memory supportDDR4 3200
Supported memorySupported Type: Supports DDR4 288-pin RDIMM, LRDIMM, RDIMM/LRDIMM-3DS, Intel Optane Persistent Memory 200 series
Max. DIMM Frequency: 3200 MHz
Max supported RAMMax. Capacity per DIMM:
RDIMM: up to 64 GB
RDIMM-3DS: up to 256 GB
LRDIMM: up to 128 GB
LRDIMM-3DS: up to 256 GB
Storage
SATA ports8 x SATA 6.0Gb/s
M.2 slots1 M-key (PCIe3.0 x4 or SATA 6Gb/s), supports 22110/2280/2242 form factor
1 M-key (PCIe3.0 x1 or SATA 6Gb/s), supports 22110/2280/2242 form factor
Graphics
Onboard video chipAspeed AST2500
Connectivity
Network speed10 Gbit/s
Ethernet controllerAdditional GbE Controller
Intel X710-AT2: 2 RJ45 (10 GbE)
Intel i210: 2 RJ45 (1GbE)
IPMI Dedicated GLAN
1 x Realtek RTL8211E for dedicated management GLAN
Second LAN controllerIntel I210
Second LAN speed10/100/1000 Mbit/s
Maximum network speed1 Gbit/s
Ports & slots
Number of DDR4 slots8 × 288-pin
PCIe 4.0 x16 slotsSLOT7: PCIe4.0 x16*
SLOT5: PCIe4.0 x16*
SLOT3: PCIe4.0 x16*
SLOT1: PCIe4.0 x16
* SLOT7/5/3 auto-switch to PCIe4.0 x8 when SLOT6/4/2 occupied
Rear panel portsUID Button/LED: 1
VGA Port: 1 DB15
USB 3.2 Gen1 Port: 4 Type-A (USB3.2 Gen1)
RJ45: 2 RJ45 (10GbE), 2 RJ45 (1GbE)
Dedicate LAN: 1 dedicated IPMI
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Shipping weight1.68 kg
Package size356 × 301 × 72 mm
More details
PCI express x8SLOT6: PCIe4.0 x8
SLOT4: PCIe4.0 x8
SLOT2: PCIe4.0 x8

Questions about this item

Does the SPC621D8-2L2T come with a CPU cooler or mounting hardware, or must those be purchased separately?

The motherboard is sold without a CPU cooler or mounting hardware; both must be sourced separately for the LGA 4189 socket.

Which DDR4 module types and capacities are validated on the SPC621D8-2L2T?

The board supports DDR4 3200 RDIMM up to 64 GB, RDIMM-3DS up to 256 GB, LRDIMM up to 128 GB and LRDIMM-3DS up to 256 GB per DIMM.

How do the PCIe 4.0 x16 slots behave when the adjacent x8 slots are populated?

Slots 7, 5 and 3 automatically drop from x16 to x8 electrical when slots 6, 4 or 2 are occupied.

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