HP Compaq Presario CQ61 AMD Athlon II WIN11 4GB RAM 120 GB SSD | eBay
1GB Black Diamond Memory Module for Compaq Presario CQ61 Series CQ60-123EF DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade System Specific Memory - Newegg.com
578002-001 578002-501 578002-601 For HP Compaq Presario CQ61 G61 Laptop Motherboard DA00P6MB6D0 With Intel GM45 DDR2 100% Tested International Power Cords - Newegg.com
CMS 4GB (1X4GB) DDR2 6400 800MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Compaq Presario Cq61-100Ee, Cq61-100Es, Cq61-100Ew - A42 at Amazon.com