8800gt alpha dog issues

[Sygybob]

Hi,

Just wondering if anyone could help. I have raised a ticket but am wondering if anyone here can help.

I have the 8800GT aplha dog edition (not OC'd). With this card in my system, I am experiencing windows blue screening and restarting as well as games locking up or crashing etc. I originally thought my 430W power supply was the issue so I have bought a 620W corsair PS and this has not changed it at all. I also tried to underclock the video card (50MHz less than default) but it doesn't seem to change anything.

While playing either WoW, after about 30mins to 1 hr of play, the textures on the screen change to random colours and in Neverwinter Nights 2, the menus turn to random pixels. I am running the PC with the side cover off, and
nTune says my video card is running at 55degrees celcius in WoW. I have updated to the latest nVidia drviers and motherboard drivers. I find Alt-Tabing out of the program will fix the textures up, but this is usually followed shortly after by the program crashing. See pics below.

My system specs are:
Corsair TWINX-3200C2 DDR RAM (4X512MB)
Gigabyte K8NXP-9 nForce4-Ultra chipset Motherboard
AMD 3500+ (939)(Venice)
Corsair 620W PSU

Some pics of whats happening.
http://i269.photobucket.com/albums/jj61/Sygybob/NWN.jpg
http://i269.photobucket.com/albums/jj61/Sygybob/WOWVidcard2.jpg
http://i269.photobucket.com/albums/jj61/Sygybob/WOWVidcard.jpg

If anyone has any ideas or suggestions please let me know!

[xfxsupport]

Have you ensured your Motherboard BIOS and chipset drivers are updated? What video card was used before this one? Just to ensure the RAM is not having issues test them one stick at a time as well.

[Miker]

If underclocking the card didn't fix anything, and alt+tab fixes it for a second chances are it is your ram. Run a bootable memtest on every stick. Also know, a lot of PCs do not like 4 sticks of RAM, and 90% of DDR era PCs don't like 4x RAM.

[Sygybob]

Previously I had an ATI X800 in this box, but it now has some serious overheating issues.

I will use memtest to check the ram tonight.