urgh everyso often my card ....

[pcclan]

every so often my card under-clock's it self to 405 MHz and i cannot overclock it to even default clocks so i have to restart my computer to get it overclocked again. the video card is the gigabyte 460 1 gb oc edition

[Luke122]

The only time I've seen clock issues like that, they were heat related. Is it getting too warm?

[PS2SP]

I've got 3x GTX 470's and they do drop speeds normally when not in use, right now they're sat @ 50Mhz for the GPU, Mem' @ 67Mhz and Shader @ 101Mhz, though 405Mhz on the GPU is another 'setting' they sit at during low use and then right up to top Mhz's when playing games.

If you have NVIDIA system tools : http://www.nvidia.com/object/nvidia_system_tools_6.06.html : and install the Performance Group part of that install you can manually set them up to not change and/OR use nvProfile.exe to manually switch between profiles, i.e. Auto for day to day use and custom spec' when you want to run them overclocked for games, etc.

HTH

PS. - I use Aida64, the newer version of Everest, to monitor things like GPU parameters real time, and you can watch the vales change depending on the load on the GPU's.

[pcclan]

well it clocks down when am folding @ home

[pcclan]

The only time I've seen clock issues like that, they were heat related. Is it getting too warm?
it's only at 65 Celsius at most

[AmEv]

I thought 60C was hot???

[diluzio91]

depends on the item. my p2x4 @ 4ghz rarely goes above 55*c, my i7 on full load chills around 70 with the stock cooler, and my 560 runs around 60-70*C on a warm day. it all depends what the chip was designed for.

[nevermind1534]

I thought 60C was hot???

For many CPUs, it might be, but not for a GPU.

[pcclan]

so i might of found the problem and it might of been the new nvidia drivers

[diluzio91]

so i might of found the problem and it might of been the new nvidia drivers

I had the same problem, my games went from 90+ fps to around 15... i was playing dirt 2 like a slideshow... rolled them back and all was well...