OWC 4R8D51R8032P 32GB (2x16GB) DDR5 4800 CL40 1Rx8 1.1V ECC Registered RDIMM memory upgrade

System-specific DDR5 ECC kit

This OWC kit delivers 32 GB of DDR5 4800 ECC registered memory as two 16 GB modules. It is built for Dell Precision 5860 and 7960 workstations in tower, XL tower and rack form factors. The modules run at 1.1 V with CL40 latency and a 1Rx8 rank structure. Registered ECC design targets data-integrity workloads on supported platforms.

Replacing non-ECC or slower DDR5

The upgrade replaces standard unbuffered DDR5 or lower-speed registered kits that lack error correction. It is worth the jump when the workload demands ECC protection and the system requires registered DIMMs. Mixing with unbuffered or load-reduced ECC memory is not supported. The kit matches the JEDEC PC5-38400 specification for the listed Dell platforms.

Build integration for Precision workstations

Each module uses a 288-pin RDIMM form factor without a heat spreader, fitting the Dell Precision 5860 and 7960 memory slots directly. The registered buffer reduces electrical load on the memory controller, freeing headroom for larger total capacities. No extra cooling or voltage adjustment is needed beyond the 1.1 V standard. The kit is RoHS compliant and validated for the named Dell systems only.