HPE DDR3 16GB 1333 MT/s RDIMM

Brand: HPE | Category: Memory (RAM)

SKU: 712657-B21 | Part #: 712657-B21 | MPN: 712657-B21

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HPE's DDR3 16GB 1333 MT/s RDIMM (part number 712657-B21) is purpose-built for Intel Xeon E5 and E5-2600 series processors that power HPE ProLiant Gen8 and select Gen7 servers. This registered memory module occupies a single DIMM slot and operates at 1333 megatransfers per second, delivering the bandwidth these dual-socket and quad-socket platforms require for sustained multi-threaded workloads across virtualised data centres and modest-scale analytics environments.

The 712657-B21 uses dual-rank, 64-bit ECC architecture with an additional 8 parity bits per transfer, giving it a full 72-bit data path. This redundancy matters because enterprise memory failures don't announce themselves politely—they corrupt quietly until a transaction or checkpoint fails. HPE built Smart Memory detection into this module, which means your ProLiant firmware recognises it on boot and flags any thermal or voltage anomalies before they cascade into downtime. The module runs at 1.5 volts with a CAS latency of 9 cycles, operating safely between 0°C and 55°C, which covers standard data-centre ambient conditions and modest thermal peaks during summer months in the GCC region.

System administrators and infrastructure teams deploying Gen8 servers—particularly those refreshing mid-cycle memory capacity for database servers, virtualisation hosts, or backup appliances—specify this part regularly. A typical scenario involves adding capacity to an existing ProLiant DL380p Gen8 or DL390p Gen8 without replacing entire DIMM populations. HPE's memory validation ensures compatibility and simplifies procurement for teams managing dozens of similar platforms across multiple locations. The 240-pin DIMM form factor is standard; the registered variant prevents signal reflection and crosstalk in multi-rank configurations, which matters when you're populating 18 memory slots with full-capacity modules.

Performance remains predictable across the operating envelope. The PC3-10600R rating reflects the module's 10,600 MB/s peak bandwidth under sustained load, sufficient for most transactional and read-heavy workloads. Hypervisor memory overcommit, Hadoop MapReduce jobs, and SQL Server analytics queries benefit from ample capacity without the latency penalties of slower speeds or the thermal overhead of faster alternatives. HPE's validation testing ensures this module won't become a bottleneck in mixed-vendor environments where memory sourcing has pulled from different manufacturers; the DDR3 standard guarantees consistency, and HPE's part number ensures firmware support across the ProLiant G8 generation.

Supply of DDR3 RDIMM modules has tightened as enterprises migrate to Xeon Scalable and newer platforms, but the 712657-B21 remains essential for data-centre operators still running stable, proven Gen8 infrastructure. Cost per gigabyte remains competitive for legacy refresh, and the module's proven reliability track record means fewer warranty claims than sourcing from unfamiliar vendors. This is exactly the kind of unglamorous but critical component that keeps existing environments running smoothly while budget cycles align with newer hardware.

Technical Specifications and Compatibility

• Capacity and Speed: 16 GB DDR3 running at 1333 MT/s (PC3-10600R rating)
• Module Type: RDIMM with dual-rank, 72-bit data path (64-bit + 8-bit ECC)
• Voltage and Latency: 1.5 V operating voltage with CAS latency 9, optimised for Xeon E5 platform power delivery
• Form Factor: Standard 240-pin DIMM, fits all ProLiant Gen8 and compatible Gen7 memory slots
• Smart Memory: HPE firmware detects and validates module on every boot, alerting to thermal or electrical anomalies
• Temperature Range: Rated 0°C to 55°C, suitable for standard and warm data-centre environments
• Part Number: 712657-B21 (HPE manufacturer part), widely available through authorised distributors

Omnixon Global stocks the HPE 712657-B21 and maintains ready inventory across our Dubai headquarters and regional hubs serving the GCC, Indian subcontinent, and European data-centre markets. If your infrastructure team is planning a Gen8 refresh, capacity upgrade, or replacement procurement, we deliver validated HPE memory to your loading dock with full technical support and warranty documentation. Request a quote today, and our sales engineers will confirm compatibility with your specific platform configuration.