Quote: "you power supply sounds a little underpowered too, you should get a better psu, >400W can be bought for <$20"
That may very well be the problem, i have a ati x850 pe pci express card right now. I have been using it for about 2 months now but i do notice a little bit of artifacting on my desktop espcially when i open mulitiple folders. Usually this goes away though with a refresh still a bit annoying though.
And the reason i belive this happens is because im using a 365 watt psu (some oddball crap designed by sony so i can't change it out unless i do some serious moding to the case that i don't feel like doing) and the card recommends a 350 or higher but 365 is really cutting it to close, good thing is it only happens on the desktop or in folders not in any games. I have noticed that it happens less using the latest 5.8 drivers.
Also remember that everything you plug in or added into you tower or usb is running off the psu, so even if you meet the required psu you may be over if you have added in a hard drive, optical drive, printer, scanner or anything added from the original specs that is running while your comp is will be drawing off the psu.
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