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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

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL7
  • Timing7-7-7
  • Voltage1.5V
  • 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.

Highlights

  • 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

Specifications

BrandComputer Memory Solutions
ModelCM5126410600SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL7
Timing7-7-7
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemCompaq Presario Cq57-439Wm, G42-164La
Package Content1 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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