Quote Originally Posted by E.R View Post

Today was the worst ever, hardlock or driver recovery as soon as system booted and was at idle in 2D.
I uninstalled the whole CCC-suit and was left with driver only from nov 11 and now i can run 3d bench as Stalker COP, Heaven DX11 bench, Vantage and so on as i would fail before either max 15 sec in to bench or on loadscreen of benchmark.

Exact same syptoms I started experiencing as soon as I put the EK waterblock on my 5970.....I never tried uninstalling CCC so I would be interested to know if this does indeed solve your problems.

I tried mounting the EK block a total of 4 times and the same thin happened each time as you have explained. Card works fine with the stock cooler on so I'm at a loss to know what is happening.