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Green circuit board SODIMM memory module with black chips

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1066MHz SODIMM A34

SKU CH-CHYF-QFPKH

A 4 GB DDR3 1066 MHz SODIMM module rated at PC3 8500 with CL7 timing for compatible HP Compaq Presario CQ57 and G42 laptops

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 4GB capacity expands system memory for HP Compaq Presario CQ57-214NR
  • DDR3 1066MHz speed matches PC3-8500 specification for responsive performance
  • CL7 7-7-7 timings deliver low latency at 1.5V operation
  • 204-pin SODIMM form factor fits compatible HP laptop memory slots
  • 2Rx8 rank configuration with major brand chipset ensures reliable compatibility

Targeted DDR3 SODIMM Upgrade

This 4 GB DDR3-1066 module is built for the HP Compaq Presario CQ57-214NR and CQ57-487SA notebooks. It arrives as a single 204-pin SO-DIMM rated at PC3-8500 with CL7 timings and 1.5 V operation. The unbuffered, non-ECC design matches the factory specification for these systems.

Replaces Slower or Smaller Factory Modules

The kit upgrades the original memory when the laptop shipped with 2 GB or a lower-speed DDR3 stick. Adding this 4 GB rank 2Rx8 module fills one of the two available sockets and raises the total toward the 8 GB platform maximum. The jump is worthwhile when the system currently swaps to disk during everyday multitasking.

Limited by DDR3-1066 Bus and Two-Socket Design

The memory controller in these notebooks caps transfer rate at 1066 MHz, so faster DDR3 modules will downclock to this speed. Only two SO-DIMM slots exist, setting a hard ceiling of 8 GB total capacity. Buyers who need more than 8 GB or a higher memory bandwidth must choose a different platform.

How it compares

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

Price $16.99
Cheaper than about 93% 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 $4.25 per GB
Cheaper than about 83% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512648500SODRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
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 systemsHp Compaq Presario Cq57-214Nr, Cq57-487Sa
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the 204-pin DDR3 SODIMM fit the HP Compaq Presario CQ57-214NR laptop?

Yes, the module is built to the 204-pin DDR3 SODIMM form factor that the CQ57-214NR and CQ57-487SA require.

What is the correct slot orientation when installing the CM512648500SODRH stick?

Align the notch on the gold edge with the key in the socket, press firmly until both side clips click, then verify the stick sits flat.

Will the CL7 1.5 V module need a voltage adjustment or firmware update later?

No, it runs at the standard 1.5 V DDR3 voltage with CL7 timing, so no BIOS voltage change or firmware update is required.

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