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Green PCB memory module with black heat spreader and gold edge contacts

Corsair

Corsair CM2X1024-5400C4 1GB DDR2 675 PC2 5400 CL4 desktop RAM

SKU CH-4RP6-19972 MPN CM2X1024-5400C4

1 GB DDR2 desktop module rated at 675 MHz with CL4 4-4-4-12 timings and a 1.90 V heat-spread design

  • Total capacity1 GB
  • Rated speedDDR2 675 (PC2 5400)
  • CAS latencyCL4
  • Memory timings4-4-4-12
  • Rated voltage1.9 V
  • Recommended forHigh Performance or Gaming Memory
  • Low-latency CL4 timing for snappy response
  • Tight 4-4-4-12 timings boost throughput
  • 90 V operation keeps power draw modest
  • Six-layer PCB design improves signal integrity
  • Verified 667 MHz operation on DDR2 boards

Capacity and purpose

This Corsair XMS2 module delivers 1024 MB of DDR2 memory rated at 675 MHz with CL4 4-4-4-12 timings. It targets enthusiasts building or upgrading high-performance desktop systems on platforms that support DDR2.

Build integration

The DIMM operates at 1.90 V and includes a heat spreader for thermal management. It fits standard DDR2 slots and has been validated across multiple motherboards for compatibility at its rated 667 MHz speed. Matched TwinX pairs are available for dual-channel configurations.

Sustained-load behaviour

Six-layer JEDEC-compliant PCB construction optimises clock skew and noise immunity during extended sessions. The module maintains its specified 4-4-4-12 latency without throttling, providing consistent throughput for demanding applications and gaming workloads.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 93% of the 3,647 comparable items (median $90.99).
Total capacity 1 GB
Lower than about 98% of the 3,251 comparable items (median 16 GB).
Price per GB $13.99 per GB
Pricier than about 83% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameCORSAIR
Product lineXMS2
Model nameCM2 × 1024-5400C4
Total capacity1 GB
Performance
Rated speedDDR2 675 (PC2 5400)
Memory
CAS latencyCL4
Memory timings4-4-4-12
Heat spreaderYes
Power
Rated voltage1.9 V
Size & build
Shipping weight0.09 kg
Package size203 × 152 × 13 mm
Compatibility
Recommended forHigh Performance or Gaming Memory

Questions about this item

Does the 1.90V voltage become a thermal limit during extended high-load sessions?

The module runs at a rated 1.90V with an integrated heat spreader to dissipate the extra power; sustained loads stay within the specified voltage envelope.

How loud or hot does the kit get when it runs all day at 667 MHz?

There are no moving parts, so acoustic output is zero; the aluminium heat spreader keeps surface temperature within normal DDR2 operating ranges during continuous use.

What motherboard slot and chipset must I already have for this 1024 MB DDR2 stick to work?

A desktop board with a standard 240-pin DDR2 DIMM slot and a chipset that supports PC2 5400 speeds is required.

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