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Two green DDR3 SODIMM sticks with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM512648500SODRH 8GB (2×4GB) DDR3 1066MHz SODIMM

SKU CH-S24M-66SZY

8GB DDR3 1066MHz SODIMM kit (2×4GB) for Lenovo ThinkPad T400 models 2764–2768, CL7 timing

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB kit upgrades Lenovo ThinkPad T400 models 2764-2768
  • DDR3 1066MHz CL7 timing improves system responsiveness
  • 2×4GB unbuffered SODIMM fits both expansion sockets
  • 5V operation matches original laptop voltage spec
  • Major-brand chips backed by CMS lifetime warranty

8GB DDR3 1066 MHz kit for ThinkPad T400

This 8GB kit contains two 4GB DDR3 1066 MHz SO-DIMM modules built to the PC3-8500 standard. Each stick is unbuffered, non-ECC and runs at 1.5V with CL7 timings. The 204-pin form factor matches the two memory slots in the listed ThinkPad T400 models.

Upgrade from 2GB or 4GB factory configurations

Many T400 units shipped with 2GB or 4GB in one or both slots. Replacing those modules with this matched pair restores dual-channel bandwidth and raises usable capacity to the 8GB maximum a 64-bit operating system can address on this platform. A 32-bit OS will still see only about 3.5GB.

Suits owners of compatible T400 part numbers

The kit is validated for ThinkPad T400 systems carrying part numbers 2764 through 2769, 2773, 6473 to 6475, and 7417, 7420, 7425, 7434. Builders working on other laptops, desktops or servers should choose memory specified for those platforms instead.

How it compares

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

Price $40.99
Cheaper than about 80% 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 $5.12 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512648500SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo Thinkpad T400 2764, 2765, 2766, 2767, 2768
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will this 204-pin DDR3 SODIMM kit fit inside a Lenovo ThinkPad T400 2764 without any adapter?

Yes, the 2×4 GB kit is built to the 204-pin SODIMM standard used by the T400 2764, 2765, 2766, 2767 and 2768 models, so it slots straight into the two memory sockets.

What is the correct way to seat these DDR3-1066 modules and which step do people often skip?

Slide each module into the socket at a shallow angle until the gold edge contacts are fully hidden, then press down evenly until the metal retention clips on both sides snap into the notches — the step many miss is pressing both ends simultaneously so the stick sits flat.

Will the 1.5 V unbuffered DDR3 chips need active cooling or replacement after a certain period?

No, the modules run at standard 1.5 V without heat spreaders and have no moving parts; they are rated for the lifetime of the laptop and only need replacement if a stick fails or you upgrade capacity.

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