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
Two green 240-pin DDR2 DIMM sticks without heat spreaders

Computer Memory Solutions

Computer Memory Solutions 4GB (2x2GB) DDR2 667 PC2-5300 CL5 240-pin DIMM memory upgrade

SKU CH-K7KH-W5NEJ

A 4 GB DDR2 kit with two 2 GB DIMMs running at 667 MHz CL5 for Asus P5GC‑MX motherboards

  • Capacity4GB (2 x 2GB)
  • Type240-Pin DDR2 SDRAM
  • SpeedDDR2 667 (PC2 5300)
  • CAS LatencyCL5
  • Timing5-5-5
  • Voltage1.8V
  • 4GB dual-channel kit boosts system responsiveness
  • DDR2-667 CL5 timing matches motherboard specifications
  • 8 V operation reduces power draw and heat
  • Unbuffered non-ECC design fits standard desktop DIMM slots
  • Tested compatible with Asus P5GC-MX series motherboards

DDR2 667 kit for Asus P5GC-MX boards

This 4 GB kit contains two 2 GB DDR2 667 DIMMs built for the Asus P5GC-MX 1333 and P5GC-MX GBL motherboards. It uses unbuffered, non-ECC modules rated at CL5 5-5-5 timing and 1.8 V. The kit targets owners of those specific boards who need to reach the platform's 4 GB maximum. It is not suited for systems that require ECC, registered memory or a different DDR generation.

DDR2 667 speed ceiling and density limits

The DDR2 667 interface caps transfer rates at the PC2-5300 level, so bandwidth cannot exceed that standard. Each DIMM carries 2 GB in a 2Rx8 organisation, and the board provides only two sockets, fixing the absolute ceiling at 4 GB. Buyers who want more storage or faster memory than DDR2 667 provides cannot use this kit to overcome those limits.

Straightforward two-slot installation

Installation consists of seating both 240-pin modules into the board's two DIMM slots until the retention clips engage. The usual mistake is inserting only one stick and leaving the second slot empty, which halves the capacity. Another common error is forcing a module in the wrong orientation, which can damage the slot or the DIMM's edge connector.

Highlights

  • 4GB dual-channel kit boosts system responsiveness
  • DDR2-667 CL5 timing matches motherboard specifications
  • 8 V operation reduces power draw and heat
  • Unbuffered non-ECC design fits standard desktop DIMM slots
  • Tested compatible with Asus P5GC-MX series motherboards

Specifications

BrandComputer Memory Solutions
ModelCM256645300DIMMDR
Capacity4GB (2 x 2GB)
Type240-Pin DDR2 SDRAM
SpeedDDR2 667 (PC2 5300)
CAS LatencyCL5
Timing5-5-5
Voltage1.8V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemAsus/Asmobile P5 Motherboard P5Gc-Mx 1333, P5Gc-Mx GBl
Package Content2 Memory RAM Sticks

Questions about this item

Should I choose the 4GB kit or a single 2GB module?

The 4GB kit provides two matched 2GB modules for dual-channel operation on the two-slot Asus P5GC-MX boards, while a single module would run in single-channel mode and leave one slot empty.

What does the PC2-5300 rating mean once installed?

PC2-5300 indicates a maximum data rate of 5300 MB/s at 667 MHz; the motherboard chipset and CPU memory controller will determine the actual throughput achieved in your system.

What does the 240-pin DDR2 interface cap in practice?

The 240-pin DDR2 interface is limited to the 667 MHz / PC2-5300 speed grade and 1.8 V operation; it cannot run at higher DDR2 speeds or any later DDR generation.

Also in this aisle

People compared these

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