Underclocking a 6800:would it damage the gpu?
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Underclocking a 6800:would it damage the gpu?
i just underclocked my Gigabyte fanless 6800 down to 200MHz from stock 325MHz for 2D only. by doing that the idle temperature dropped 16C. would this damage it? just concerned that when i start a 3D application the frequency goes back to 325MHz instantly...
anyway, would be nice to use the card this way. firefox doesn't really need the full power of a 6800
any thoughts guys?
anyway, would be nice to use the card this way. firefox doesn't really need the full power of a 6800
any thoughts guys?
thanks for your reply gforce1!
still testing, for over two hours now my gpu runs at 200MHz. no sign of artefacts, it seems to run whitout issues so far. temperature idle is an amazing 32C now, down from 48-50C!
i would not underclock the vga ram, there's not much use in it since they don't generate too much heat. plus i'm afraid doing so would get the videocard unstable.
still testing, for over two hours now my gpu runs at 200MHz. no sign of artefacts, it seems to run whitout issues so far. temperature idle is an amazing 32C now, down from 48-50C!
i would not underclock the vga ram, there's not much use in it since they don't generate too much heat. plus i'm afraid doing so would get the videocard unstable.
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- SPCR Reviewer
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peterson, it takes some time for the temperature of a heavy heatsink to get down, there's some thermal inertia... the chip cools down much faster, it weights only a few mg
i love it, the only reason i had to keep my Aerocool Turbine at 800 rpm was the vga. just hate to see it idle above 50C. now my fan is at 680 rpm, ambient 18C (winter here) and my idle temperatures are the following:
CPU 29C (A64 3000+ with c&q active, crystal cpuid at 1.0V, 1GHz)
VGA 32C (Gigabyte 6800 with passive cooling, using coolbits to underclock in 2D mode to 200MHz from 325 MHz stock)
HDD 33C (Samsung SP1614C inside a SilenX Luxurae enclosure)
Case: 26C (Gigabyte K8VNXP with passive hsf since i removed the noisy little fan)
All of the above cooled by the Aerocool Turbine, no other fan inside my case since the CPU has a TT103 fanless on top and the Antec Phantom has no fans either, as we all know, hehe
noise? what's that?
i love it, the only reason i had to keep my Aerocool Turbine at 800 rpm was the vga. just hate to see it idle above 50C. now my fan is at 680 rpm, ambient 18C (winter here) and my idle temperatures are the following:
CPU 29C (A64 3000+ with c&q active, crystal cpuid at 1.0V, 1GHz)
VGA 32C (Gigabyte 6800 with passive cooling, using coolbits to underclock in 2D mode to 200MHz from 325 MHz stock)
HDD 33C (Samsung SP1614C inside a SilenX Luxurae enclosure)
Case: 26C (Gigabyte K8VNXP with passive hsf since i removed the noisy little fan)
All of the above cooled by the Aerocool Turbine, no other fan inside my case since the CPU has a TT103 fanless on top and the Antec Phantom has no fans either, as we all know, hehe
noise? what's that?
well, that's strange... are you sure the gpu is underclocked? make sure you underclock the 2D mode only, otherwise there's no effect at idle... if it is slowed down, at what frequency is it running now?peterson wrote:Yes, but now it's been undervolted for more than 2 hours, and no sign of changes in the T-Balancer.
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Try to install some real-time monitoring programs like rivatuner so that you can watch both the temperature and the frequency. I have also found that certain applications like playing mpeg4 videos will cause the card to switch to 3D mode at full 400Mhz (I overcloked my card for 3d mode). Actually just keeping ZoomPlayer open will cause the card to switch to 3D mode, only after it's been closed the videocard will drop the frequency.