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Computer Memory Solutions
Computer Memory Solutions CM128645300SO 2GB (2 x 1GB) DDR2 667 memory upgrade
DDR2 667 SO-DIMM kit adds 2 GB across two 1 GB modules for ThinkPad T43 notebooks
- Capacity2GB (2 x 1GB)
- Type200-Pin DDR2 SO-DIMM
- SpeedDDR2 667 (PC2 5300)
- CAS LatencyCL5
- Timing5-5-5
- Voltage1.8V
- 2GB dual-channel kit boosts ThinkPad T43 responsiveness
- DDR2-667 PC2-5300 speed matches factory specification
- CL5 5-5-5 timings at 1.8V ensure stable operation
- 200-pin unbuffered SODIMMs install without tools
- Major-brand chips backed by CMS lifetime warranty
DDR2 667 SO-DIMM kit for ThinkPad T43
This kit supplies two 1 GB DDR2 667 (PC2-5300) modules in the 200-pin SO-DIMM form factor. It is built for the IBM Lenovo ThinkPad T43 notebook series and runs at 1.8 V with CL5 5-5-5 timing. The unbuffered, non-ECC design matches the original memory specification for those systems.
Tool-free slot access on the T43 underside
Installation requires removing the memory cover on the bottom of the notebook and pressing each module into the 200-pin socket until the retention clips lock. Common issues include inserting a module at the wrong angle, failing to seat it fully so the clips do not engage, or mixing these DDR2 sticks with any other DDR generation which physically will not fit.
Verify two free 200-pin slots and DDR2 667 support
Before ordering, confirm the ThinkPad T43 has both SO-DIMM sockets available and that the BIOS recognises DDR2 667 (PC2-5300) at CL5. The notebook must accept 1.8 V unbuffered non-ECC modules; systems limited to a different voltage, registered DIMMs or a lower maximum speed will not work with this kit.
Highlights
- 2GB dual-channel kit boosts ThinkPad T43 responsiveness
- DDR2-667 PC2-5300 speed matches factory specification
- CL5 5-5-5 timings at 1.8V ensure stable operation
- 200-pin unbuffered SODIMMs install without tools
- Major-brand chips backed by CMS lifetime warranty
Specifications
| Brand | Computer Memory Solutions |
|---|---|
| Model | CM128645300SO |
| Capacity | 2GB (2 x 1GB) |
| Type | 200-Pin DDR2 SO-DIMM |
| Speed | DDR2 667 (PC2 5300) |
| CAS Latency | CL5 |
| Timing | 5-5-5 |
| Voltage | 1.8V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
| Heat Spreader | No |
| Compatible System | IBM Lenovo Thinkpad T43 Notebook Series |
| Package Content | 1 Memory RAM Stick |
Questions about this item
How can I verify the CM128645300SO kit is running at 667 MHz after installation?
Open the BIOS or a system-information utility such as CPU-Z and confirm the memory frequency reads 667 MHz with timings of 5-5-5 at 1.8 V.
What exactly ships with the CM128645300SO package and is anything else required?
The box contains two 1 GB DDR2 200-pin SO-DIMM modules; no additional parts or tools are needed for a ThinkPad T43 upgrade.
Which capacity version of the CM128645300SO should I choose for a ThinkPad T43 with two memory slots?
This 2 GB kit (2 × 1 GB) fills both slots and matches the DDR2 667 specification supported by the T43 series.
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