just a thought.. when I had the H80i fitted to my gigabyte board there was a bit of slack when tightened up. I ended out fitting a few rubber washers between the motherboard and back plate to hold the cpu block/pump tight to the cpu.
can you try running the machine with the side off and apply some gentle pressure on the cpu block to see if this may be youre problem.
I know you said you have previously not had a problem but just with you saying you had a patch of thermal paste that looked as if it had not made contact to the cpu Im wondering if this may be the issue
can you try running the machine with the side off and apply some gentle pressure on the cpu block to see if this may be youre problem.
I know you said you have previously not had a problem but just with you saying you had a patch of thermal paste that looked as if it had not made contact to the cpu Im wondering if this may be the issue