ASRock’s C621A WS Enables Workstations with 38 Cores & Up to 2TB DDR4


Hot on the heels of Intel’s Xeon W-3300-series CPUs announcement, ASRock on Thursday introduced one of the industry’s first retail motherboard for the processors. The company’s C621A WS platform allows system makers and enthusiasts to build ultra-high-end workstations with up to 38-core Xeon W-3375 CPU, 2TB of DDR4 memory, and four PCIe 4.0 x16 dual-slot graphics, SSD or FPGA cards. 

Being designed solely for workstations and multi-purpose servers, the ASRock C621A WS is all about expandability, stability, and reliability as opposed to focus on overclocking, advanced cooling, built-in features, and impressive look in case of high-end desktop platforms. The C621A WS motherboard has a rather modest seven-phase digital voltage regulating module (VRM) that can still handle Intel’s W-3300 CPUs with an up to 270W TDP. If Intel decides to offer a successor to its Xeon W-3175X CPU with unlocked multiplier, it does not look like the C621A WS will be an ideal choice for such a chip. 

The motherboard uses a narrow version of the Socket P+, so it is compatible only with select coolers. One of the reasons why ASRock had to stick to a narrow socket is because it wanted to go with the ATX form-factor to ensure broader compatibility with chassis without making any compromises to expandability or features.

(Image credit: ASRock)

The C621A WS platform carries eight slots for DDR4 memory that can support up to 2TB of DRAM using RDIMM, LRDIMMs, and/or Intel Optane Persistent Memory modules. In addition, the platform has four PCIe 4.0 x16 and three PCIe 4.0 x8 slots for add-in-boards, such as graphics cards, FPGA accelerators, high-end enterprise-grade SSDs or other adapters. As for storage, the C621A WS has one M.2-22110 slot for a PCIe 4.0 x4 SSD, one M.2-22110 slot for a SATA or PCIe 3.0 x1 drive, two SATA ports, and one Mini-SAS connector.  



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