We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular DDR3 server memory module with gold edge connectors and black chips on both sides

A-Tech

A-Tech 64GB DDR3 1600 ECC LRDIMM 8Rx4 for HP 700838-B21 701807-081 Server Memory

SKU CH-DDCR-QKN43

64GB DDR3 1600 ECC LRDIMM module with 8Rx4 organisation and CL11 latency for HP 700838-B21 and 701807-081 servers

  • Capacity64GB
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • 64 GB capacity supports large server workloads
  • DDR3 1600 speed (PC3-12800) delivers fast data throughput
  • ECC LRDIMM design reduces electrical load for stability
  • 240-pin form factor fits compatible HP server slots
  • 5 V operation matches standard DDR3 voltage

64GB DDR3 1600 LRDIMM for HP Servers

This A-Tech module provides 64GB of DDR3 1600 server memory in a single 240-pin LRDIMM. It is built for HP systems using part numbers 700838-B21 and 701807-081. The ECC Load Reduced design helps maintain data integrity in demanding server and workstation environments.

DDR3 1600 speed and LRDIMM electrical loading

The module runs at DDR3 1600 (PC3-12800) with a CAS latency of CL11 and standard 1.50V voltage. Load Reduced DIMM technology reduces the electrical load on the memory bus, allowing higher densities per channel than standard registered DIMMs. System chipset and BIOS must support LRDIMM operation for the module to function.

8Rx4 rank organisation decides compatibility

This module uses an 8Rx4 rank configuration, which determines how the memory controller addresses the chips. The server memory controller must explicitly support 8Rx4 LRDIMMs; systems limited to lower rank counts or different rank architectures will not recognise the full 64GB capacity. Verify the supported rank structure before purchase.

Highlights

  • 64 GB capacity supports large server workloads
  • DDR3 1600 speed (PC3-12800) delivers fast data throughput
  • ECC LRDIMM design reduces electrical load for stability
  • 240-pin form factor fits compatible HP server slots
  • 5 V operation matches standard DDR3 voltage

Specifications

BrandA-Tech
Capacity64GB
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.50V
ECCYes
Buffered/RegisteredLoad Reduced
Rank8Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

Should I choose this 64GB module or a smaller capacity for my HP server?

This is a single 64GB LRDIMM designed as a direct replacement for HP part numbers 700838-B21 and 701807-081; choose it when your system requires maximum density per slot.

What does the 1600MHz speed mean for actual server performance?

The module operates at DDR3 1600 (PC3-12800) with CL11 latency, providing the rated data rate your platform's memory controller negotiates at boot.

How does the LRDIMM interface affect total memory capacity?

Load Reduced DIMM technology buffers the data and address lines, allowing the memory controller to support higher overall capacities than standard registered DIMMs.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.