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Green rectangular circuit board with gold edge connectors and black memory chips

HPE

HPE 647879-S21 8GB DDR3 1600MHz ECC Registered DIMM

SKU CH-XHG9-QJ9XY MPN 647879-S21

8GB DDR3 ECC registered DIMM running at 1600MHz with CL11 latency and 1.50V operation

  • Electrical Outlet Plug TypeRAM Module
  • ECC protection prevents data corruption in critical workloads
  • Registered signal processing improves stability for dense server configurations
  • 1600 MHz DDR3 speed delivers responsive performance for memory-intensive applications
  • 50 V operation reduces power draw compared to higher-voltage modules
  • 240-pin DIMM form factor fits compatible HPE server memory slots

HPE 8 GB DDR3 ECC Registered DIMM

This module adds 8 GB of DDR3 memory with ECC and registered signal processing for compatible HPE servers and workstations. It operates at 1600 MHz with a CAS latency of CL11 and a voltage of 1.50 V. The 240-pin DIMM form factor fits standard DDR3 slots in supported platforms.

Compatibility checklist before ordering

Verify that your system accepts DDR3-1600/PC3-12800 registered ECC DIMMs and that the memory controller supports 1.50 V operation. Confirm the motherboard or server manual lists 240-pin registered modules with CL11 timing as qualified parts. Ensure the platform can address the full 8 GB capacity per slot without exceeding the maximum supported memory.

Build quality and daily handling

The module uses a standard green PCB with gold edge contacts rated for repeated insertion in server maintenance cycles. Registered buffering reduces electrical load on the memory bus, which helps stability in multi-DIMM configurations. ECC circuitry corrects single-bit errors during operation, protecting data integrity in critical workloads. The 240-pin DIMM keying prevents accidental installation in incompatible slots.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • Registered signal processing improves stability for dense server configurations
  • 1600 MHz DDR3 speed delivers responsive performance for memory-intensive applications
  • 50 V operation reduces power draw compared to higher-voltage modules
  • 240-pin DIMM form factor fits compatible HPE server memory slots

Specifications

BrandHPE
Electrical Outlet Plug TypeRAM Module
Shipping weight2.31 kg
Package size89 × 25 × 25 mm

Questions about this item

What comes with the 647879-S21 DIMM and what else must be purchased?

The module is a single 8 GB DDR3 registered ECC DIMM; any additional DIMMs for multi-channel configurations must be bought separately.

Which capacity and speed version of the 647879-S21 should I select for a DDR3-1600/PC3-12800 system?

This part is an 8 GB DDR3-1600/PC3-12800 module with CL11 latency and 1.50 V operation; choose it when those exact specifications match the server memory list.

What does the 1600 MHz rating mean once the 647879-S21 is installed in a compatible server?

The memory runs at 1600 MHz (PC3-12800) with ECC error correction and registered signal processing, delivering 8 GB of registered DDR3 capacity per DIMM slot.

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