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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1600 SO-DIMM CL11 1.5V 204-Pin memory upgrade

SKU CH-0BRE-655Z3

4GB DDR3 1600 SO-DIMM CL11 1.5V 204-pin upgrade for Compaq Presario CQ58-bf9WM laptop

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.5V
  • 4GB DDR3 1600 MHz boosts multitasking for Compaq Presario CQ58
  • CL11 latency at 1.5V keeps power draw low
  • 204-pin SO-DIMM fits the single expansion socket
  • Major-brand chipset ensures reliable operation
  • Lifetime warranty from CMS backs the module

Compaq Presario Cq58-Bf9Wm upgrade

This 4 GB DDR3 SO-DIMM is built specifically for the Compaq Presario Cq58-Bf9Wm notebook. It delivers a single 4 GB module that matches the system’s DDR3 1600 specification. Buyers who want more storage or a different memory generation will not be served by this part.

Installation and system fit

The stick uses the standard 204-pin SO-DIMM form factor and runs at 1.5 V unbuffered. It occupies the laptop’s sole expansion socket, so no additional modules can be added alongside it. The system maximum is 8 GB, leaving one free slot if the factory module is removed.

Sustained operation behaviour

CL11 timing at 1600 MHz provides steady throughput for everyday multitasking. Without a heat spreader, the module relies on the notebook’s internal airflow to maintain temperature during extended sessions. The major-brand chipset and 2Rx8 organisation support consistent reliability over long workloads.

Highlights

  • 4GB DDR3 1600 MHz boosts multitasking for Compaq Presario CQ58
  • CL11 latency at 1.5V keeps power draw low
  • 204-pin SO-DIMM fits the single expansion socket
  • Major-brand chipset ensures reliable operation
  • Lifetime warranty from CMS backs the module

Specifications

BrandComputer Memory Solutions
ModelCM5126412800SODRH
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemCompaq Presario Cq58-Bf9Wm Laptop/Notebook
Package Content1 Memory RAM Stick

Questions about this item

Does the DDR3-1600 speed limit bandwidth under sustained load?

The module runs at 1600 MHz with CL11 11-11-11 timings; sustained throughput is capped by that DDR3-12800 rating.

Will the unbuffered 1.5 V SO-DIMM run hot or loud in a laptop chassis all day?

No heat spreader is fitted; the stick draws standard 1.5 V and relies on the notebook's existing cooling, adding negligible noise or temperature rise.

What must the Compaq Presario Cq58-Bf9Wm already have for this 204-pin stick to work?

One free 204-pin DDR3 SO-DIMM slot and a BIOS that accepts 4 GB unbuffered non-ECC modules; the system maximum is 8 GB.

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