Hi, well i bought this computer from ebay http://cgi.ebay.co.uk/QUAD-CORE-2-Q6600-2GB-DDR2-400-GB-7200GS-512MB-GFX_W0QQitemZ160180217152QQihZ006QQcategoryZ179QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Basically the specs are
4coredual-sata2 (link here to manual and specs http://www.asrock.com/mb/overview.asp?Model=4CoreDual-SATA2
Quad core 2 q6600
Seagate 7200 400gb
2gb dual channel ram
Now when i first got it, the pc kept crashing/freezing constantly, i went to pcworld and replaced the graphics card with a 7900gt. The crashing became less frequent but its still doing it, so i used the pc with only 1gb stick in, and changed the sticks, kept crashing, so the ram can be ruled out, i bought a new 4coredual-sata2 motherboard, still crashing, reinstalled windows 3 times formatting every time, still crashing.
It crashes much less frequent, but all i have to do to make it crash is extract a large rar file and defrag at the same time, it crashes after about 5 minutes into the process. Completely freezing and i have to press reset switch. i have disconnected any front usb cables etc, and speakers, to minimize the problem bracket. i have unplugged the dvdrom and run it, still crashes. tried a geforce 7600gs, still crashes. another thing i suppose i should mentiion is that i added a pci wireless network card, and that and the hard disk are the only constants in this system. so im assuming its one or the other.
A few questions ive asked myself are.
1. Are the sata2 settings right, the manual only gives specifics for three other brands and not seagate barracuda.
2. Perhaps the 450watt psu is not enough, but the ebayer assures me it is plenty.
3. Maybe the hard disk is faulty, but i have scanned it and formatted many times.
4. worst thing possible, that the quad core is somehow faulty. tempreture is fine.
Please help me! my new pc which cost ÃƒÂ‚Ã‚Â£330 is dieing on me at the most annoying times. It seems to crash when its under stress, like a lot of hard disk usage. Any, and i mean any suggestions will be carried out