Quote Originally Posted by dejanh View Post
Hmmm....well...

I recently bought two Komodo blocks and installed one on one of my HD 5850 card to do some overclock testing while I am waiting for my second HD 5850.

I went straight for the Advanced Thermal Utilization step seen on page 5 here http://swiftnets.com/products/instal...ultilangue.pdf because I did not even want to bother with the thermal pads but I am getting awful VRM temps and I think I know why...the block does not seem to be making adequate contact with the VRMs at all, but there is no way to screw in the block any further without cutting the fasteners to shorten them.

At 1.225V and 1000/1250 overclock running Furmark the VRM temperatures go over 100C. At 1.187V and 975/1250 overclock the VRM temperatures hit high 90s. I did not dare let it run to see what the max temperatures would come to, but all I know is that they kept on rising when I stopped the test. The stock air cooler kept the VRM temperatures to ~80C at these voltages and clocks. GPU temps themselves are excellent topping out in mid 30s.

Any ideas what to do? As it is right now I have no choice but to back down the overclock to get the temperatures on the VRMs within working range (i.e., below 100C).
Something is definitely wrong, you might try a reseat or something...

My best I have got so far stable is 1081/1306 at 1.35v... My core maxed out at 35*C and my hottest VRM got to 65*C... I think I will stick with this overclock, I don't want to push my luck with BC2 coming out tomorrow hehe, its stable, and its a pretty respective overclock IMO.

It still isn't breaking a sweat yet, so i'm sure it will go further.

BTW, this is at 75.8*F ambient temps, and with my san ace 1011 fans at almost silent RPM's, but I have a pretty overkill watercooling setup.