GTX 560ti core clock stuck at 202.5 mhz

[HeliosUK]

Hello all,

got this card back in February, been great since then although not as much of a step up from a 5770 due to my cpu bottleneck. This started about an hour ago, I played a game of league of legends, finished then started again, how ever this time I only had 5 fps, reloaded twice couldn't find a solution so I loaded up gpu-z to see if it would show me anything. And low and behold I find that my core clock is severely underclocked suddenly for no apparent reason, temp's are fine and as far as I can tell, all the other parts of the card are functioning well too.



This isn't showing it but the memory clock and shader clock both go up to 1050 and 1800 respectively while the core clock stays at 202.5.

Can't seem to find a solution to this online, and it seems odd that it would run fine one minute, 5 minutes later it's busted, so any help guys?

Cheers.

[shaithis]

Uninstall all the nVidia drivers from control panel.

Install the 301.24 drivers fresh and don't install the 3D stuff (via custom install) if your not using it.

[HeliosUK]

fixed it for about 12 hours, happened again :/ it just randomly started happening, I installed 301.24 about 2 weeks ago.

[shaithis]

You will have to roll back to 296.xx until its fixed for you then

It's part of the 3xx.xx branch and there doesn't seem to be much rhyme or reason to who it effects.

[HeliosUK]

Ah well that sucks, thanks for your help!

[watercooled]

Do you have a flash video open in the background? I've seen it with both Nvidia and AMD cards, when a Youtube video or similar is open (even paused) in the background, the clocks will lock at the video playback mode.

[HeliosUK]

I pretty much shut everything down bar the game I was playing and it still happened. Seems fixed currently, did another wipe of all Nvidia drivers.