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Green 204-pin DDR3 SO-DIMM stick, black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1333 CL7 SODIMM 2Rx8

SKU CH-0TFT-B43W9

A 4GB DDR3 SODIMM module rated at 1333MHz CL7 for upgrading compatible Compaq Presario laptops

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4GB capacity expands multitasking headroom for compatible Compaq notebooks
  • DDR3-1333 CL7 timing delivers responsive data access at 1.5V
  • 204-pin SO-DIMM form factor fits CQ57-439WM and G42-164LA slots
  • Unbuffered non-ECC design ensures straightforward installation without configuration
  • 2Rx8 rank organisation using major-brand chips supports stable dual-channel operation

System-Specific DDR3 SODIMM

This 4 GB DDR3-1333 module is built for the Compaq Presario CQ57-439WM and G42-164LA notebooks. It arrives as a single 204-pin SO-DIMM stick rated at CL7 7-7-7 timing and 1.5 V unbuffered operation. The 2Rx8 organisation uses major-brand chips and carries a lifetime warranty from Computer Memory Solutions.

Upgrade from 2 GB or 4 GB factory fit

The supported platforms ship with two slots and a maximum of 8 GB, so adding this stick doubles a 4 GB configuration or fills the second slot on a 2 GB base. The jump is worth it when the system feels sluggish with multiple browser tabs or office applications open. Matching the existing CL7 timing avoids down-clocking the new module to a slower CAS setting.

Check slot count and current population

Verify the notebook still has a free SO-DIMM socket before ordering; the CQ57 and G42 families provide two slots total. Confirm the installed memory runs at DDR3-1333 (PC3-10600) so the new stick operates at its rated speed without automatic reduction. Ensure the chassis allows access to the memory compartment without full disassembly.

How it compares

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

Price $19.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% 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 nameCM5126410600SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
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 systemsCompaq Presario Cq57-439Wm, G42-164La
In the box
Included items1 Memory RAM Stick

Questions about this item

Does this 204-pin DDR3 SODIMM fit the Compaq Presario CQ57-439WM and G42-164LA laptops?

Yes, it is validated for those models which have two SODIMM slots and a maximum memory capacity of 8 GB.

What is the correct way to seat the module and the step most people miss?

Align the notch on the 204-pin edge connector with the slot key, insert at a 30-degree angle, then press down firmly until both side clips click into place — the click is the step often missed.

Will this 1.5 V CL7 module need any firmware updates or paired replacement later?

No firmware updates are required; if you later add a second stick, match DDR3 1333 speed, CL7 timing and 1.5 V voltage for best stability.

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