OWC 32GB DDR3 1333 PC3-10600 CL9 4Rx4 240-pin 1.5V ECC Registered RDIMM Memory Upgrade

32GB DDR3 ECC RDIMM for HP ProLiant Gen7

This 32GB DDR3 1333 PC3-10600 CL9 registered ECC module is built for HP ProLiant BL460c G7, BL490c G7, BL620c Gen7, BL680c Gen7 and BL685c Gen7 servers. It targets administrators who need to expand memory capacity in these specific blade platforms without mixing registered and unbuffered DIMMs. The single 4Rx4 240-pin stick runs at 1.5V and meets JEDEC and RoHS standards for warranty-safe deployment.

Replaces lower-capacity DDR3 registered DIMMs

Upgrading from smaller registered modules to this 32GB stick increases total memory per slot, which helps when virtualisation workloads or large datasets exceed the current footprint. The jump is worth it when the server’s memory controller supports 4Rx4 ranks and the BIOS recognises the full capacity; mixing with unbuffered memory is not supported and will prevent boot. Buyers who need unbuffered desktop memory or higher DDR generations cannot use this module.

Tool-less blade installation with rank-awareness

The DIMM slots into the blade’s 240-pin sockets without tools; alignment keys prevent backward insertion. Common issues include populating slots in an order the BIOS does not expect for 4Rx4 ranks, leaving the new capacity unseen, or mixing registered and unbuffered sticks which halts POST. OWC tests every module in-house, so a non-booting blade usually points to slot population rules or firmware revision rather than the stick itself.