Computer Memory Solutions 4GB DDR3 1066MHz SODIMM A34

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.