Processor & Cache Memory Intel Core i5 Processor 460M : 2.53 GHz with Turbo Boost up to 2.8 GHz; Intel Core i3 Processor 380M/370M : 2.53 GHz - 2.4 GHz, Chipset Mobile Intel HM55 Express Chipset Main Memory DDR3 1333 MHz SDRAM, 2 x SODIMM socket for expansion up to 8GB SDRAM Display 13.3" 16:9 HD (1366x768) LED backlit Hard Drive 640GB,5400rpm 500GB,5400rpm;7200rpm 320GB,5400rpm Card Reader 3 in 1 card reader SD,MMC,MS Video Camera 0.3 Mega Pixel web camera Fax/Modem/LAN/WLAN Integrated 802.11 b/g/n or 802.11b/g Built-in Bluetooth V2.1+EDR (optional) 3G/3.5G Antenna support(in selected territories) 10/100/1000 Base T Interface 1 x Microphone-in jack 1 x Headphone-out jack (S/PDIF) 1 x VGA port/Mini D-sub 15-pin for external monitor 3 x USB 2.0 ports 1 x RJ45 LAN Jack for LAN insert 1 x HDMI Audio Built-in speaker and microphone Altec Lansing speakers Battery Pack & Life 6 cells: 4400 mAh 47 Whrs 8 cells: 5600 mAh 83 Whrs AC Adapter Output: 19 V DC, 3.42 A, 65W Input: 100~240 V AC, 50/60 Hz universal Dimension & Weight 32.8 x 23.3 x 2.53~2.85 cm (W x D x H) 1.78 kg (with 6 cell battery) Security BIOS Booting / HDD User Password Protection Intel Anti-theft LoJack Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.