4AllDeals 8GB 2x4GB Memory RAM for Compaq Presario CQ57-229WM, CQ57-250SV, CQ56-115DX (DDR3-1333MHz 204-pin SODIMM) at Amazon.com
4GB Upgrade for a HP - Compaq Presario CQ57-229WM System (DDR3 PC3-12800, Non-ECC, ) at Amazon.com
COMPAQ PRESARIO CQ57-200TU
4GB RAM Memory Upgrade for the Compaq HP Presario CQ57-229WM Memory (RAM) netperfekt Computers/Tablets & Networking
4GB DDR3-1333 (PC3-10600) RAM Memory Upgrade for The Compaq HP Presari – DirectNine - United Arab Emirates
Specs HP Compaq Presario CQ57-252SA DDR3-SDRAM Notebook 39.6 cm (15.6") 1366 x 768 pixels Intel® Celeron® 2 GB 320 GB HDD Windows 7 Home Premium Black Notebooks (LT125EA)