CPU: Intel Centrino 2 Processor Technology Chipset: Intel PM45+ICH9M Memory: DDR2 800, Max: 4GB LCD Size: 15.4" WSXGA+/WXGA ACV Display Graphics: ATI Mobility Radeon HD4670 Graphics VRAM: DDR3 512MB HDD (GB): 2.5" 160GB/250GB/320GB SATA Optical Drive: Super-Multi/ Blu-ray Audio: 2 speakers Webcam: 2.0M Card Reader: SD/MMC/MS/MS Pro LAN: 10/100/1000 Wireless LAN: 802.11b/g/n Bluetooth: optional D-Sub (VGA): 1 HDMI: 1 USB 2.0 port: 2 USB 3.0 port: N/A eSATA: N/A eSATA/USB Combo: 1 Mic-in/Headphone-out: 1 Express Card: 1 Modem port: 1 Line-in: N/A Keyboard: 103 keys AC Adapter: 90W Battery: 6/9 cells Dimension: 360 x 260 x 33~36 mm Weight (KG): 2.74 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.