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Computer Memory Solutions
Computer Memory Solutions CM512646400SO 4GB DDR2 800 SO-DIMM
4GB DDR2 800 SO-DIMM 200-pin module compatible with Compaq Presario CQ61 models
- Capacity4GB
- Type200-Pin DDR2 SO-DIMM
- SpeedDDR2 800 (PC2 6400)
- CAS LatencyCL6
- Timing6-6-6
- Voltage1.8V
- 4 GB capacity adds multitasking headroom for compatible Compaq Presario CQ61 models
- DDR2 800 speed (PC2 6400) matches original system specification
- CL6 6-6-6 timing delivers responsive data access
- 8 V unbuffered SO-DIMM fits 200-pin laptop slots directly
- Single 4 GB module leaves second socket free for future expansion
CMS 4GB DDR2-800 SO-DIMM for Compaq Presario
This 4GB module uses 200-pin DDR2 SO-DIMM technology rated at 800 MHz with CL6 timing and 1.8 V operation. It is built as a single 2Rx8 unbuffered stick without a heat spreader and carries a major-brand chipset. The part is validated for Compaq Presario CQ61-100EE, CQ61-100ES and CQ61-100EW notebooks.
Suitable for CQ61 owners needing a single 4GB
Owners of the listed Compaq Presario models can install this stick to reach the per-socket limit of 4GB. Buyers whose laptops use a different pin count, voltage or memory generation cannot use this module. Systems that require ECC or registered memory should look elsewhere.
Deciding spec: 200-pin DDR2 SO-DIMM at 800 MHz
The 200-pin DDR2 SO-DIMM form factor running at 800 MHz is the single specification that determines fit. If the target notebook accepts PC2-6400 200-pin DDR2 SO-DIMMs, this module will work; otherwise it will not seat or function.
Highlights
- 4 GB capacity adds multitasking headroom for compatible Compaq Presario CQ61 models
- DDR2 800 speed (PC2 6400) matches original system specification
- CL6 6-6-6 timing delivers responsive data access
- 8 V unbuffered SO-DIMM fits 200-pin laptop slots directly
- Single 4 GB module leaves second socket free for future expansion
Specifications
| Brand | Computer Memory Solutions |
|---|---|
| Model | CM512646400SO |
| Capacity | 4GB |
| Type | 200-Pin DDR2 SO-DIMM |
| Speed | DDR2 800 (PC2 6400) |
| CAS Latency | CL6 |
| Timing | 6-6-6 |
| Voltage | 1.8V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
| Heat Spreader | No |
| Compatible System | Compaq Presario Cq61-100Ee, Cq61-100Es, Cq61-100Ew |
| Package Content | 1 Memory RAM Stick |
Questions about this item
Does the 200-pin DDR2 SO-DIMM slot need to be free on my Compaq Presario CQ61?
Yes, the module fits a single 200-pin DDR2 SO-DIMM socket; one slot must be vacant for installation.
Can I keep the existing memory stick when adding this 4GB DDR2 800 module?
The notebook supports two sockets with a maximum of 4 GB each, so a second module can stay installed alongside this one.
How do I confirm the 800 MHz speed and CL6 timing are active after installing the CM512646400SO?
Check the memory tab in CPU-Z or the BIOS memory information screen; both should report DDR2-800 and 6-6-6 timings.
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