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Two green DDR2 DIMMs with gold contacts and black chips

Computer Memory Solutions

Computer Memory Solutions CM256726400ECCNRDR 4GB (2x2GB) DDR2 800MHz ECC Non-Registered DIMM memory upgrade

SKU CH-KXVH-J3NPC

ECC DDR2 800MHz kit adds 4GB across two 2GB DIMMs for HP/Compaq Xw4300, Xw4300Ct, Xw4600 and Xw4600Ct workstations

  • Capacity4GB (2 x 2GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 800 (PC2 6400)
  • CAS LatencyCL6
  • Timing6-6-6
  • Voltage1.8V
  • ECC protection guards data integrity in servers
  • 800 MHz DDR2 speed matches system requirements
  • 4 GB kit (2×2 GB) fills two slots
  • Validated for HP Workstation XW4300 and XW4600
  • 8 V standard voltage keeps power draw low

Capacity and fit

This kit provides four gigabytes in two matched 2GB modules built for HP and Compaq workstations including the xw4300, xw4300Ct, xw4600 and xw4600Ct. The 240-pin DDR2 DIMMs run at 800 MHz with CL6 timings and include ECC error correction for data integrity. Unregistered design suits the specified workstation memory controllers. Buyers who need more than four gigabytes total or registered modules for server boards cannot use this kit.

Upgrade path

The modules replace slower 667 MHz DDR2 ECC memory in the compatible workstations and raise the bus speed to 800 MHz. The jump is worth it when the system chipset and processor front-side bus both support the higher rate and the BIOS recognises the tighter 6-6-6 timing. Systems limited to 667 MHz or requiring registered DIMMs will not benefit from this kit.

Installation notes

Each stick inserts into a standard 240-pin DDR2 slot at 1.8 volts with no heat spreader to clear. The dual-rank 2Rx8 organisation means the workstation must support that density per slot. Common issues include mixing these unregistered ECC modules with registered memory or exceeding the four-slot, eight-gigabyte maximum listed for the supported models.

Points forts

  • ECC protection guards data integrity in servers
  • 800 MHz DDR2 speed matches system requirements
  • 4 GB kit (2×2 GB) fills two slots
  • Validated for HP Workstation XW4300 and XW4600
  • 8 V standard voltage keeps power draw low

Caractéristiques

BrandComputer Memory Solutions
ModelCM256726400ECCNRDR
Capacity4GB (2 x 2GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 800 (PC2 6400)
CAS LatencyCL6
Timing6-6-6
Voltage1.8V
ECCYes
Buffered/RegisteredUnregistered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp/Compaq Workstation Xw4300, 4300Ct, Xw4600, Xw4600Ct
Package Content2 Memory RAM Sticks

Questions sur cet article

Does the 240-pin DDR2 DIMM fit the four memory slots in an HP xw4600 workstation?

Yes, the kit is validated for the xw4600 and xw4300 workstations, which each provide four 240-pin DDR2 slots supporting up to 8 GB total.

What is the correct seating procedure for these unregistered ECC modules, and what step do builders often miss?

Align the notch on the 240-pin edge connector with the slot key, press straight down until both retaining clips snap shut, then verify the BIOS reports 800 MHz at 1.8 V — skipping the clip check is the common error.

When should the dual-rank 2Rx8 modules be replaced if ECC corrected-error counts start rising?

Replace the pair when the system logs show a sustained increase in corrected ECC errors, indicating the DDR2 chips are degrading beyond the controller's correction capability.

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