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Green 200-pin DDR2 SODIMM module with black chips

Computer Memory Solutions

Computer Memory Solutions CM256646400SO 2GB DDR2 800MHz SODIMM HP/Compaq Presario Cq50 memory upgrade

SKU CH-RH58-AM8WT

2GB DDR2 800MHz SODIMM module upgrades HP/Compaq Presario CQ50 notebooks with CL6 timing and 1.8V operation

  • Total capacity2 GB
  • Rated speedDDR2 800 (PC2 6400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL6
  • Memory timings6-6-6
  • Rated voltage1.8 V
  • Guaranteed compatibility with HP/Compaq Presario CQ50 series
  • 2GB DDR2 800MHz module boosts multitasking performance
  • 200-pin SO-DIMM fits notebook memory slots directly
  • CL6 timing at 1.8V for stable operation
  • Single 2GB stick allows flexible upgrade path

HP Presario CQ50 memory upgrade

This 2GB DDR2 SODIMM is built for HP and Compaq Presario CQ50 notebooks. It runs at 800MHz with CL6 timing and 1.8V voltage. The module uses a 200-pin unbuffered, non-ECC design and carries a major brand chipset. It replaces OEM part numbers such as 451400-001 and 482169-001.

Who this suits and who should look elsewhere

The stick fits CQ50 models including CQ50-100, CQ50-101AU, CQ50-102LA and CQ50-103ER. It is intended for owners upgrading a compatible notebook to the supported memory limit. Buyers whose laptop requires ECC or registered modules, or who need a different pin count, voltage or speed, cannot use this part.

Deciding specification

The memory operates at DDR2 800 (PC2 6400) with CL6 6-6-6 timing. This speed and latency combination determines whether the module matches the notebook's memory controller requirements. Confirm the system specifies PC2 6400 before ordering.

How it compares

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

Price $9.99
Cheaper than about 97% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% 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 nameCM256646400SO
Total capacity2 GB
Product type200-Pin DDR2 SO-DIMM
Performance
Rated speedDDR2 800 (PC2 6400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL6
Memory timings6-6-6
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsHp/Compaq Presario Cq50 Notebook Series
In the box
Included items1 Memory RAM Stick

Questions about this item

Does my Presario CQ50 need a free 200-pin DDR2 SODIMM slot to install this 2 GB module?

Yes, the notebook has two SODIMM sockets; one must be vacant for this 200-pin stick to fit.

Will this PC2-6400 800 MHz stick run at its rated speed if the other slot holds slower DDR2 memory?

The memory controller will drop both modules to the lowest common speed, so the new stick will match the slower module.

How can I confirm the 2 GB upgrade is recognised after fitting the CM256646400SO?

Check the BIOS memory summary or Windows Task Manager — both should show the total capacity increased by 2 GB.

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