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Four green DDR2 DIMMs with gold contacts, 240-pin registered ECC modules

Computer Memory Solutions

Computer Memory Solutions CM512725300ECCREG2R4 16GB DDR2 667 ECC Registered DIMM

SKU CH-N53G-EHAN7

16GB DDR2-667 ECC Registered kit upgrades HP xw9400 workstations to 64GB maximum

  • Capacity16GB (4 x 4GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 667 (PC2 5300)
  • CAS LatencyCL5
  • Timing5-5-5
  • Voltage1.8V
  • 16 GB kit for HP xw9400 workstations
  • ECC registered design protects data integrity
  • DDR2-667 speed matches system specification
  • 240-pin DIMMs install in available sockets
  • Four 4 GB modules fill a memory bank

16GB DDR2 Registered Kit for HP xw9400

This 16GB kit contains four 4GB DDR2-667 ECC registered DIMMs built for the HP/Compaq Workstation xw9400. Each module runs at 1.8V with CL5 timing and uses a 240-pin interface. The registered design helps maintain signal integrity on the workstation’s eight memory sockets.

Suited for xw9400 upgrades only

Buyers restoring or expanding an HP xw9400 G2 workstation can fill up to four sockets per CPU to reach the 64GB system maximum. Systems that require unbuffered memory, non-ECC modules or a different DDR generation cannot use this kit. The 2Rx4 organisation also matches the platform’s registered requirements.

Straightforward DIMM installation

Modules seat into the 240-pin slots like standard registered DIMMs; align the notch and press until the latches click. Common issues include mixing registered with unbuffered sticks or populating sockets in the wrong bank order, which prevents the workstation from posting.

Highlights

  • 16 GB kit for HP xw9400 workstations
  • ECC registered design protects data integrity
  • DDR2-667 speed matches system specification
  • 240-pin DIMMs install in available sockets
  • Four 4 GB modules fill a memory bank

Specifications

BrandComputer Memory Solutions
ModelCM512725300ECCREG2R4
Capacity16GB (4 x 4GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 667 (PC2 5300)
CAS LatencyCL5
Timing5-5-5
Voltage1.8V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Heat SpreaderBased on Current Inventory (If Required Please Contact)
Compatible SystemHp/Compaq Workstation Xw9400 G2
Package Content1 Memory RAM Stick

Questions about this item

What system must I already own for this 16GB DDR2 667 ECC Registered kit to work?

It is validated for the HP/Compaq Workstation xw9400 G2 with eight total DIMM sockets and a 64GB maximum.

How will these 4GB 2Rx4 registered modules behave alongside older DDR2 5300 sticks I keep in the same workstation?

All sockets run at 667 MHz CL5; the registered design adds one cycle of buffering, so matching speed and latency keeps the platform stable.

How can I confirm the kit is running as intended after installation?

The BIOS memory screen should show 16GB detected at DDR2 667 with ECC active and registered status on all four modules.

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