Comparison reviews

ASRock C621A WS supports workstations with 38 cores and up to 2TB DDR4

Followed by Intel Xeon W-3300 series CPU released, ASRock Thursday introduce One of the industry’s first retail motherboards for processors. The company’s C621A WS platform allows system manufacturers and enthusiasts to build ultra-high-end workstations with up to 38-core Xeon W-3375 CPU, 2TB DDR4 memory, and four PCIe 4.0 x16 dual-slot graphics cards, SSD or FPGA cards.

Designed for workstations and multi-purpose servers, ASRock C621A WS The focus is on scalability, stability, and reliability, rather than focusing on overclocking, advanced cooling, built-in features, and the impressive appearance of high-end desktop platforms. The C621A WS motherboard has a fairly common seven-phase digital voltage regulator module (VRM), which can still handle Intel W-3300 CPUs with up to 270W TDP. If Intel decides to provide a successor to its Xeon W-3175X CPU with an unlocked multiplier, then the C621A WS does not seem to be the ideal choice for this type of chip.

The motherboard uses a narrow version of Socket P+, so it is only compatible with specific heat sinks. One of the reasons why ASRock must insist on using a narrow slot is because it wants to adopt an ATX form factor to ensure wider compatibility with the chassis without making any compromises on scalability or functionality.

(Image source: ASRock)

The C621A WS platform has 8 DDR4 memory slots and can use RDIMM, LRDIMM and/or Intel Optane persistent memory modules to support up to 2TB of DRAM. In addition, the platform has four PCIe 4.0 x16 and three PCIe 4.0 x8 slots for inserting boards such as graphics cards, FPGA accelerators, high-end enterprise SSDs or other adapters. In terms of storage, C621A WS has one M.2-22110 slot for PCIe 4.0 x4 SSD, one M.2-22110 slot for SATA or PCIe 3.0 x1 drives, two SATA ports and one Mini-SAS Connector.

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