I have a Sapphire X1900XTX and I've been having some problems. Everything seems to work fine except for the fact that I'm encountering this weird phenomenon. As some of you might know, the X1900XTX runs at 500 core 600 mem in 2D mode and clocks up to 650/775 when running 3D applications. When I start up or exit a 3D game, I get a momentary flash of what looks like a single frame of display corruption. At first I figured this might just be the result of the card changing its clock speeds on the fly and might be normal, but a friend who has the exact same videocard doesn't seem to be seeing the same thing. Moreover, I sometimes see this brief flash of random display corruption sometimes even if I'm just sitting in Windows surfing the web or whatnot, which has me concerned that my card might be defective. Anyone have any thoughts/ideas?
Also, using the catalyst control center's overdrive panel monitor for clocks and temps, I noticed that the card does not clock up to 3D speeds when you run a 3D game/application in a window. I've found a post on the hardocp forums where someone else seems to be experiencing the same thing, and an ATI response that seems to imply that's what's supposed to happen. If it's intended, it seems kinda dumb to me as this basically means you have to play games or run 3D applications fullscreen to get the full performance of the card, otherwise it leaves it in the slow 500 MHz core / 600 MHz memory clocks and you get reduced performance.
Also, using the catalyst control center's overdrive panel monitor for clocks and temps, I noticed that the card does not clock up to 3D speeds when you run a 3D game/application in a window. I've found a post on the hardocp forums where someone else seems to be experiencing the same thing, and an ATI response that seems to imply that's what's supposed to happen. If it's intended, it seems kinda dumb to me as this basically means you have to play games or run 3D applications fullscreen to get the full performance of the card, otherwise it leaves it in the slow 500 MHz core / 600 MHz memory clocks and you get reduced performance.
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