Lenovo ThinkPad SL510 28479WU 15.6-Inch Laptop (Black) - 3GB DDR3 320GB HDD (Windows XP/7 Pro Upgrade) Notebook Mainboard Chipset Type : Intel GM45 Express DisplayDisplay Diagonal Size : 15.6 Inch Display Technology : TFT active matrix Max Resolution : 1366 x 768 MemoryCache Memory Type