Is your waterblock seated properly?
A poorly seated block might result in a higher than hoped for temp. Sometimes 10-15 deg C or to the point where the comp will not even boot (Thermal protection kicks in)
To avoid this problem I now install my block with Tension bolts placed on either side of the bracket. (Even if you are mounting with the 4 bolts in the corners..you can still have problems)
Here is what to do...Remove your bracket and cut some 1/4 in threads(in the bracket) on either side where the cpu touches the block. Thread a nut onto a 7/16 headx3/4longx1/4 in bolt. You do this so that you can set the tension and have it stay.
Install the bolts, into the bracket and mount your waterblock normally.
Next boot the comp...hopefully getting into the bios.
Search through the bios to find the temp of the cpu.
Now if you have just booted the comp ColdBoot you should see temps in the high teens or low 20's. If you see any temps higher30's-40's... your block is not seated properly.
With your HAND turn one of the bolts and watch the temp in your bios. If the temp increases...loosen the bolt off to flush. Next turn the other bolt. If the temp Decreases... you have found the problem. Set the bolt for the lowest temp and tighten down the set nut.
You have sucessfully installed your waterblock.
Tuff uses a modified aluminum channel block xp1700@2020ghz 1.8v @23deg c
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