Processor & Cache Memory Intel Core i7 Processor 620M/820QM/740QM/720QM : 2.66 GHz - 1.6 GHz, with Turbo Boost up to 3.33/3.06/2.93/2.8 GHz; Intel Core i5 Processor 540M/520M/460M/450M/430M : 2.53 GHz - 2.26 GHz, with Turbo Boost up to 3.06/2.93/2.8/2.66/2.53 GHz Intel Core i3 Processor 370M/350M/330M : 2.4 GHz - 2.13 GHz, Chipset Mobile Intel HM55 Express Chipset Main Memory DDR3 1333 MHz up to 8GB (Intel i7-720QM / i7-740QM / i7-820QM platform) DDR3 1066 MHz up to 4GB (Intel Core i7-620M/ i5 / i3 platform) Display 17.3" 16:9 Full HD (1920x1080)/HD+ (1600x900) LED backlit,Color-Shine (Glare-type) Video Graphics & Memory VIDIA GeForce GTX 460M, with 1.5GB GDDR5 VRAM Hard Drive 750GB,5400rpm;7200rpm 640GB,5400rpm 500GB,5400rpm;7200rpm 320GB,7200rpm Dual HDD support 500GB 7200rpm SSH Optical Drive DVD Super Multi Blu-Ray DVD Combo Blu-ray writer Card Reader 8 in 1 card reader SDXC,MMC,MS,MS-Pro,MS-Duo Video Camera 2.0 Mega Pixel web camera Fax/Modem/LAN/WLAN Integrated 802.11 b/g/n Built-in Bluetooth V2.1+EDR (optional) 10/100/1000 Base T Interface 1 x Microphone-in jack 1 x Headphone-out jack 1 x USB 3.0 ports 3 x USB 2.0 ports 1 x RJ45 LAN Jack for LAN insert 1 x HDMI Audio Built-in speaker and microphone Subwoofer EAX Advanced HD 5.0 THX TruStudio Battery Pack & Life 8 cells: 5200 mAh 75 Whrs AC Adapter Output: 16 V DC, 4.7 A, 150W Input: 100-240 V AC, 50/60 Hz universal (Intel i7-720QM / i7-820QM platform) Output: 19 V DC, 4.74 A, 120W Input: 100~240 V AC, 50/60 Hz universal (Intel Corei7-620M/ i5 / i3 platform) Dimension & Weight 41.5 x 32.0 x 1.89~5.69 cm (W x D x H) 3.85 kg (with 8 cell battery) 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.