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Green circuit board with black memory chips and gold edge connector

Lenovo

Lenovo 40Y7734 1GB DDR2 667 (PC2 5300) 200-pin SO-DIMM memory upgrade

SKU CH-QHPN-468KH MPN 40Y7734

1 GB DDR2 667 SO-DIMM module rated PC2 5300 with CL5 latency for ThinkPad T60 and X60 systems

  • CAS latencyCL5
  • Rated voltage1.8 V
  • Buffer typeUnbuffered
  • Key featuresMaximum data transfer rate of up to 5,336 MB/s 200-pin SODIM
  • 1GB DDR2 667 boosts older laptop responsiveness
  • CL5 latency and 1.80V operation keep power draw low
  • 200-pin SO-DIMM form factor fits ThinkPad T60 and X60 slots
  • Gold-plated leads and SPD support reliable module detection
  • PC2-5300 rating delivers up to 5,336 MBps data throughput

What this module adds

A single 1 GB DDR2 SO-DIMM rated at 667 MHz with CL5 timing and 1.80 V operation. It uses a 200-pin unbuffered design and carries gold-plated contacts for reliable insertion.

Suits owners of listed ThinkPads.

This stick is validated for ThinkPad T60 and ThinkPad X60 models. Builders upgrading different laptops or desktops should look elsewhere because the pin-out and voltage will not match.

Deciding spec: 200-pin DDR2 SO-DIMM form factor

Only notebooks that accept 200-pin DDR2 modules at 1.80 V can use this part. If the service manual calls for a different pin count or voltage, this module will not fit or function.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 99% of the 21,161 comparable items (median $397.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameLenovo
Model name40Y7734
Memory
CAS latencyCL5
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.8 V

Questions about this item

How much heat and power will this 1.8V DDR2 module add when the laptop runs all day?

The module operates at 1.8V with CL5 latency, drawing minimal power and producing little extra heat inside a ThinkPad chassis.

What must my laptop already have for this 200-pin SO-DIMM to work?

Your system needs a free DDR2 SO-DIMM slot that accepts 200-pin modules and supports PC2 5300 speeds.

Will this 1GB stick run stably alongside the original memory in a ThinkPad T60 or X60?

Yes, it is validated for ThinkPad T60 and X60 models and uses standard DDR2 667 timing for compatible mixed-channel operation.

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