Rare freeze on setting overclock

Hi,

Ever since I can remember on this laptop, I have been getting a freeze pretty rarely upon SETTING the overclock. After a reboot, I can set the clocks just fine. When it works it usually does it without seeing anything or it shimmers a tiny bit, but when it freezes, the screen messes all up and shakes, goes black, and then i have to restart (I don't have VPU recover on).

What could be doing this? Is it too much of a clock difference jump? I tried to do it in steps before and have still gotten this every once in let's say 10 overclock applications.

I have seen this across different versions of ATi Tray Tools over time but I have not tried a different overclocker.

What could be causing this?

Thanks,

Flaviu

 

If it doesnt artifact like that all the time then you've got in on a setting thats borderline unstable. I'd back it off a little bit.

 

I knew people would say this. The thing is it IS stable (for hours, 0 artifacts) if this doesn't happen when you actually apply the new clocks.