NeweggBusiness - Lenovo Laptop Intel Core 2 Duo T6600 (2.20GHz) 3GB Memory 320GB HDD Intel GMA 4500MHD 15.6" Windows XP Professional preinstalled with Windows 7 Professional Upgrade Option G550(2958-A4U)
Lenovo G550 specifications
168002997 Motherboard for Lenovo G550 LA-5082P with heatsink instead of G555 LA-5972P 100% compatible and a free CPU - AliExpress