OWC 32GB (2x16GB) DDR3L 1600 CL11 2Rx4 1.35V ECC Registered RDIMM memory upgrade

Server-grade DDR3L upgrade kit

This OWC kit supplies 32 GB of DDR3L 1600 memory as two 16 GB registered ECC RDIMMs built for Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4 and x3630 M4 servers. The modules run at 1.35 V with CL11 latency and a 2Rx4 organisation. They are intended for administrators who need to expand capacity in supported workstation or server chassis.

DDR3L 1600 registered ECC limits

The DDR3L 1600 standard tops out at PC3L-12800 bandwidth and requires a platform that accepts registered ECC DIMMs; it will not work in systems that only support unbuffered memory. Mixing registered and unbuffered modules is not supported, so the whole memory population must match this type. The 240-pin form factor fits only sockets wired for DDR3L registered operation.

32 GB capacity for virtualised workloads

Two 16 GB ranks give 32 GB total, which suits moderate virtualisation, database caching and multi-user file services on the listed Lenovo models. Workloads that demand larger per-socket footprints or higher memory frequencies will exceed what this DDR3L 1600 kit can deliver. Buyers needing more than 32 GB per channel or faster transfer rates must look beyond the DDR3L platform.