Hi everyone, After such good responses from last time I thought Id come here for help once again. Starting from last night I've been getting bsod's crashing etc. I cannot pinpoint anything specifically it all seems to random. Ive checked all my temps n fan speeds etc for overheating. Temps are normal 30c and under and fans are going well. Ive changed the setting in my computer properties to not automatically reboot after system failure to see if i get a better explanation of what's causing it. 0x1000000a (0x00000000, 0x00000002, 0x00000001, 0x805219c4). 0x1000000a (0x0000002d, 0x00000002, 0x00000000, 0x804e6cbd) 0x100000d1 (0x0000000c, 0x00000002, 0x00000000, 0xb9d89f27). 0x1000008e (0xc0000005, 0xbfb66700, 0xb3a10981, 0x00000000) Current System specs: Mb: Asus P5N32-e-sli Cpu: Intel Core 2 EDuo E6850 , 3.00 GHz Memory:4gig Corsair 6400C4 Graphics: XFX 8800gtx Hdd: 2x 500gig WD sata, 1x 160gig Seagate sata. OS: Windows XP Pro PSU: 850watt Thermaltake Thanks again guys. Any help is appreciated. Update: I just did 10 passes of memtest86 and I got no errors whatsoever. I have also defragged and air compressed my computer no longer than 2 weeks ago. Only thing that i can think of which may have caused this issue is that i have installed a card reader bout a week ago. It is powered by usb (internal). Ever since i installed it my printer no longer works it says that the device has malfunctioned (also usb connected). So was thinking perhaps the card or software is at fault. Perhaps surging/overloading the usb hub. Other than that just a couple of software installs/uninstalls. Azureus, Nvidia Network access manager, Call of duty4. Thanks again guys for your help.