A-Tech 8GB DDR4 3200 ECC RDIMM 1Rx8 for HP P07638-B21 P07638-H21 P07638-K21 P11441-191 P20499-001 server RAM

8GB DDR4 3200 ECC RDIMM for HP Servers

This 8GB DDR4 3200 ECC RDIMM module is built for HP server and workstation platforms that require registered memory with error correction. It matches part numbers P07638-B21, P07638-H21, P07638-K21, P11441-191 and P20499-001. System administrators expanding memory capacity in compatible HP systems use this single-rank 1Rx8 DIMM.

Sustained load behaviour with registered ECC

The registered buffer reduces electrical loading on the memory controller, allowing stable operation when all slots are populated under continuous workloads. ECC circuitry detects and corrects single-bit errors in real time, preventing data corruption during long compute tasks. CL22 latency and 1.20V voltage maintain consistent timing and power draw across extended duty cycles.

1Rx8 rank decides slot population limits

The single-rank 1Rx8 organisation determines how many modules the memory controller can address per channel. Systems with strict rank-per-channel limits need this exact configuration to reach maximum capacity. Builders requiring dual-rank or quad-rank density per module cannot use this DIMM.