NEMIX RAM 256GB 8x32GB DDR5 4800 CL40 2Rx8 ECC RDIMM Supermicro H14DSG-O-CPU

256GB DDR5-4800 ECC RDIMM kit

This 256GB kit contains eight 32GB DDR5 registered ECC modules rated at 4800 MT/s with CL40 latency and 1.1V operation. It is built for the Supermicro H14DSG-O-CPU motherboard where registered DIMMs are required for full-capacity population. The 2Rx8 organisation matches the board's memory-controller expectations so the system recognises every module at its rated speed. Buyers needing unbuffered UDIMMs or non-ECC memory for a workstation or desktop platform should look elsewhere.

Installation notes

Each module uses the standard 288-pin DDR5 RDIMM keying, so it seats in the board's DIMM slots like any registered server memory. Because the kit fills all eight channels, follow the motherboard manual's exact population sequence; skipping a slot or mixing ranks can prevent the system from posting. The modules have no heat spreaders, so verify that your chassis airflow reaches the memory area, especially in dense 1U or 2U enclosures where restricted airflow can raise module temperatures.

Pre-order checklist

Confirm that your Supermicro H14DSG-O-CPU is running a BIOS version that supports 256GB of DDR5-4800 registered ECC with 2Rx8 modules. Check the manual for the approved DIMM population order and any per-channel or per-socket capacity limits before ordering. Ensure the server's power budget accommodates eight registered DIMMs at 1.1V, and that the chassis provides sufficient clearance for full-height 288-pin modules.