I am in contact with XFX but not really getting anywhere. My PC is:
Abit IP35 Pro with a Q6600 quad core,
4 Gig RAM
1.1KW PSU
XFX 4890 Black Edition
Hanns-G 28" monitor
Ever since installing the Video card I have had a problem with it.
Basically everything works fine until I try to use any anti-aliasing, that is on the desktop with CCC or any game that uses anti-aliasing (any multiple). As soon as it encounters any anti-aliasing the video crashes. The screen just goes black. When the GPU recover kicks in after 5 seconds or so the screen will return briefly and crash again. I can play all games with no AA with no problems at all.
I gave up on it for a while and just ignored AA and there has been no other problem video wise. However I have decided I need to get it sorted, though the card is now out of warranty.
Upon investigating with GPU-Z I find that the VDDC is set to 1.05 volt, I think this is way to low for this factory overclocked card. While monitoring the card I can see that the VDDC volts jumps to 1.4375 for about half a second then resets to 1.05 volts, about 10 seconds later it jumps to 1.4375 volts for half a second then reverts to 1.05 volts again and so on.
I have used GPU Tool to set the VDDC to 1.3125 volts and I can use anti-aliasing in games and on the desktop. The memory voltage is a constant 1.2volts.
When the computer boots up the the VDDC is back at 1.05v and any anti-aliasing causes the card to crash again. I believe the card will need a VDDC of 1.4375 to run at the default 1Ghz clock speed.
I don't understand why the card appears to try to set the higher voltage but fails and why 1.05 volts?
I cannot find anything in the PC BIOS settings which help.
Any help gratefully received
Abit IP35 Pro with a Q6600 quad core,
4 Gig RAM
1.1KW PSU
XFX 4890 Black Edition
Hanns-G 28" monitor
Ever since installing the Video card I have had a problem with it.
Basically everything works fine until I try to use any anti-aliasing, that is on the desktop with CCC or any game that uses anti-aliasing (any multiple). As soon as it encounters any anti-aliasing the video crashes. The screen just goes black. When the GPU recover kicks in after 5 seconds or so the screen will return briefly and crash again. I can play all games with no AA with no problems at all.
I gave up on it for a while and just ignored AA and there has been no other problem video wise. However I have decided I need to get it sorted, though the card is now out of warranty.
Upon investigating with GPU-Z I find that the VDDC is set to 1.05 volt, I think this is way to low for this factory overclocked card. While monitoring the card I can see that the VDDC volts jumps to 1.4375 for about half a second then resets to 1.05 volts, about 10 seconds later it jumps to 1.4375 volts for half a second then reverts to 1.05 volts again and so on.
I have used GPU Tool to set the VDDC to 1.3125 volts and I can use anti-aliasing in games and on the desktop. The memory voltage is a constant 1.2volts.
When the computer boots up the the VDDC is back at 1.05v and any anti-aliasing causes the card to crash again. I believe the card will need a VDDC of 1.4375 to run at the default 1Ghz clock speed.
I don't understand why the card appears to try to set the higher voltage but fails and why 1.05 volts?
I cannot find anything in the PC BIOS settings which help.
Any help gratefully received
