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Green 240-pin DDR3 UDIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR3 1600 ECC UDIMM 2Rx8 745886-001 server RAM

SKU CH-W6BS-M9R0Q

4GB DDR3 1600 ECC UDIMM module with CL11 latency and 1.5V operation for HP 745886-001 servers

  • Capacity4GB
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection guards against data corruption
  • 1600 MHz DDR3 speed handles demanding workloads
  • HP 745886-001 compatible replacement ensures fit
  • 5 V standard voltage enables broad platform support
  • 2Rx8 dual-rank organisation boosts memory density

4GB DDR3 ECC UDIMM for HP servers

This 4GB DDR3 1600 module is an unbuffered ECC UDIMM built to replace HP part 745886-001 in compatible server and workstation platforms. It runs at 1.50V with CL11 latency and a 2Rx8 organisation across a 240-pin DIMM form factor. The module targets administrators who need to add dependable error-correcting capacity to supported HP systems.

Replaces HP 745886-001 in qualified platforms

The stick serves as a direct replacement for the original HP 745886-001 module, allowing capacity increases or failed-module swaps without changing memory architecture. The upgrade is worthwhile when the platform supports DDR3 1600 unbuffered ECC and has free 240-pin slots, but it cannot be used in systems that require registered or load-reduced DIMMs.

DDR3 1600 unbuffered ECC limits

DDR3 1600 unbuffered ECC tops out at the electrical and timing boundaries of the PC3-12800 standard, so maximum usable capacity is capped by the platform's memory controller and slot count rather than the module itself. Systems limited to lower DDR3 speeds or non-ECC operation will not benefit from the error-correction or rated frequency of this part.

Highlights

  • ECC protection guards against data corruption
  • 1600 MHz DDR3 speed handles demanding workloads
  • HP 745886-001 compatible replacement ensures fit
  • 5 V standard voltage enables broad platform support
  • 2Rx8 dual-rank organisation boosts memory density

Specifications

BrandA-Tech
SeriesCompatible Replacement for HP
Model745886-001
Capacity4GB
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.50V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Features745886-001

Questions about this item

Will the 240-pin DDR3 DIMM fit my HP server that uses the 745886-001 part?

Yes, this module is a 240-pin DDR3 UDIMM built to match the HP 745886-001 specification, so it installs in the same DIMM slots as the original memory.

What is the correct way to seat the 240-pin DDR3 UDIMM, and what step do people often miss?

Align the notch on the module with the key in the slot, press down firmly until both side clips click shut, and verify the clips are fully locked — partial insertion is the common mistake.

When should I replace this ECC UDIMM?

Replace the module if system logs show increasing correctable ECC errors, if memory diagnostics start reporting failures, or if you move to a platform that requires a different DDR generation or higher capacity per slot.

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