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Green 200-pin DDR2 SODIMM memory module with black chips and gold contacts

Computer Memory Solutions

Computer Memory Solutions CM256645300SO 2GB DDR2 667MHz SODIMM for ThinkPad T61 T61P memory upgrade

SKU CH-B3DK-12CSR

A 2 GB DDR2 667 MHz SODIMM module for upgrading ThinkPad T61 and T61p laptops

  • Total capacity2 GB
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • 2 GB DDR2 667 MHz module boosts ThinkPad T61 performance
  • CL5 5-5-5 timing delivers responsive multitasking on legacy systems
  • 8 V unbuffered SODIMM fits 200-pin slots without adapters
  • Major-brand chipset ensures stable operation in supported ThinkPad models
  • Compatible with OEM part 73P3846 for direct replacement confidence

ThinkPad T61 DDR2 SODIMM upgrade

This 2 GB DDR2-667 SO-DIMM is built for Lenovo ThinkPad T61 and T61P notebooks. It uses a 200-pin unbuffered layout with CL5 timing and runs at 1.8 V. The module carries major-brand chips and is guaranteed compatible by Computer Memory Solutions.

Suits single-stick expansion on 32-bit

Users adding one stick to a free slot will gain 2 GB instantly. Buyers who need more than 3 GB on a 32-bit OS should look elsewhere, as the platform caps recognised memory at 3.0 or 3.5 GB. Systems already populated in both sockets cannot accept another module.

Fits the two SODIMM slots in T61 chassis

The stick slots into either of the two 200-pin sockets without a heat spreader, leaving clearance for the factory keyboard and palm-rest assembly. No extra voltage or BIOS work is required, freeing the builder to focus on the operating-system reinstall that a memory change often prompts.

How it compares

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

Price $9.99
Cheaper than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM256645300SO
Total capacity2 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 Series
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 200-pin DDR2 SODIMM fit a ThinkPad T61 that already has one module installed?

Yes, the T61 has two SODIMM sockets so this 2 GB stick can be added alongside the existing module for a total of up to 3 GB on 32-bit Vista or 8 GB on 64-bit Vista.

Does the CL5 5-5-5 timing match the original 73P3846 memory in my T61P?

The module runs at DDR2-667 with CL5 5-5-5 timing, which matches the PC2-5300 specification used by the OEM 73P3846 part.

How can I confirm the new stick is recognised at 667 MHz after installation?

Enter BIOS or use a system-information tool; it should report 2 GB at 667 MHz (PC2-5300) with CL5 timings and 1.8 V operation.

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