Lenovo ThinkCentre M58 9960-AKU Desktop PC - Intel Core 2 Duo E7500 2.93GHz, 2GB DDR3, 250GB HDD, DVDRW, Windows XP Pro / Windows 7 Professional 32-bit at TigerDirect.com
Performing Pc-Check Diagnostic Tests
PC won't accept RAM? Here's how to fix this issue
Q&A: Why won't my PC boot up with new RAM sticks installed?