- Will this work in a regular desktop PC?
- No. It is registered ECC buffered memory (RDIMM), which consumer Intel and AMD desktop boards do not support. It is meant for server boards like the ROMED8-2T.
- Can I install just one of these?
- Yes, the ROMED8-2T accepts a single DIMM, but EPYC platforms get the most bandwidth with all memory channels populated. One module gives capacity, not full channel bandwidth.
- Is 2666MHz the right speed for this board?
- 2666MHz is the native DDR4 speed for EPYC 7002 and 7003 processors, so this module runs at rated speed without overclocking.
- What does 2S4Rx4 mean?
- It describes the module's organization: dual-rank, quad-rank DRAM packages, x4 data width. It is a standard registered ECC layout for large-capacity server DIMMs.
- Do I need ECC support on the board?
- The ROMED8-2T supports registered ECC memory, which this module is. ECC lets the system detect and correct single-bit errors, which matters for long-running server workloads.
- Can I mix this with other memory?
- Mixing different capacities, speeds or organizations in one system can cause instability or force slower timings. Matching modules is the safer choice for a server.
- Where is the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM cheapest?
- At Amazon, for $947.10, as of our latest check.
- Where can I buy the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM?
- 2 stores we checked sell it, including Amazon, A-Tech Memory.