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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

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 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.

How it compares

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

Price $10.99
Cheaper than about 96% 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 $2.75 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsCompaq Presario Cq58-Bf9Wm Laptop/Notebook
In the box
Included items1 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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