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Two green 200-pin DDR2 SODIMM sticks, no heat spreader, gold edge connectors

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR2 667MHz PC2-5300 SODIMM memory upgrade

SKU CH-9TQ9-52DAF

8GB dual-channel DDR2-667 SODIMM kit for Lenovo ThinkPad T61 and T61p notebooks

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 8 GB total capacity for multitasking headroom in compatible ThinkPad T61 and T61p models
  • DDR2 667 MHz PC2-5300 speed matches original system specification
  • 200-pin SODIMM form factor fits the two memory sockets in supported notebooks
  • Unbuffered non-ECC design with CL5 5-5-5 timing for stable operation
  • Two 4 GB modules supplied as a matched kit for dual-channel performance

8GB DDR2 SO-DIMM Kit for ThinkPad T61

This 8GB kit contains two 4GB DDR2 667MHz SO-DIMM modules built for the Lenovo ThinkPad T61 and T61p series. It uses the 200-pin form factor and runs at 1.8V with CL5 latency. The unbuffered, non-ECC design matches the original specification for these notebooks.

Steady throughput on legacy platforms

At DDR2 667 speed the modules deliver consistent bandwidth for everyday multitasking on supported ThinkPad models. The 5-5-5 timing provides stable operation during extended sessions without the variability sometimes seen in generic alternatives. Performance scales with the dual-channel architecture of the host system.

Direct-fit modules with no spreader

The low-profile sticks install directly into the two SODIMM sockets beneath the keyboard or access panel. No heat spreader means they clear the tight chassis clearance of the T61 family. Buyers running a 32-bit operating system should note the OS will only address approximately 3.0 to 3.5GB of the installed 8GB.

How it compares

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

Price $96.99
Cheaper than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $12.12 per GB
Pricier than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512645300SO
Total capacity8 GB (2 × 4 GB)
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsIbm Lenovo Thinkpad T61, T61P
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the 1.8 V DDR2 667 MHz kit add noticeable heat or fan noise during all-day use?

These modules run at the standard 1.8 V for DDR2 667 MHz and have no heat spreader, so they add minimal thermal load to the ThinkPad T61 cooling system.

My ThinkPad T61 currently runs a 32-bit OS; what must I change to use the full 8 GB?

You need a 64-bit operating system; with a 32-bit OS the system will only recognise 3.0 to 3.5 GB even though both 4 GB SODIMMs are installed.

Can I keep one existing 2 GB stick and add just one 4 GB module from this kit?

The T61 has two SODIMM slots; mixing a 2 GB module with a 4 GB module works but total capacity becomes 6 GB and dual-channel mode is lost.

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