Quote:
Originally posted by Slaymate@Oct 16 2007, 09:57 PM
I have seen some drivers incorrectly identify a cards core and memory speeds
and overclock the settings. That will cause your issues. But if it's been running
like that for awhile it may have already damaged your card. Memtest won't
help you if your card is artifacting in games. I hate to say I'm right, but I am.
If the drivers don't help you need to follow the steps I previously posted.
Edit:
And those steps may or may not help. The gpu can usually withstand the
extra heat from overclocking or a faultly fan. It's usually the memory chips
on the card that will crap out 1st. But if your lucky :-)
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But I wasn't suggesting he test his video memory, just his main system RAM. Overclocked RAM will cause artifacting, BSOD, Reboots and obviously data corruption. In the years gone by I experienced artifacting on loads of VIA chipset motherboards, the ones with the 4in1 driver. It was an issue related to sideband addressing and fast write caching through the AGPgart component. It wasn't resolved until my last AMD chipset the VIA KT400.
Usually GPU overclocking artifacts are short and sweet and the driver will bomb out and depending on your OS and driver version, you will either get a reboot, BOSD or CTD. Consistant artificating without crashing would suggest that it is a software issue. Faulty GFX memory would be noticable in the OS, before any games are launched, because the display buffer splits the screen drawing in such way that you would have one correct portion and the other corrupt, dependant on the amount of memory that is FUBAR.
If I had such a problem, I would immediately reset the BIOS and rebuild the OS from scratch. Once Windows has installed, just install the motherboard chipset drivers and GFX driver, DX9.0c and test it out in 3DMark or a Tech Demo. This really would tell you if its something wrong at a hardware level.