Quote Originally Posted by ElEctric_EyE View Post
Temp is def my limiting factor. Jan is when I will take apart my WC loop and then I plan to use a custom backing plate and use a fuzion nozzle setup for the cpu. Lapping a cpu, right now for me, is like the black arts. Not sure what's involved or what tools to use to go about it. I am very pleased with my speed and dont think even with all the addons ill make it stable over 4GHz, but it's worth a try, if not just once.
You're right. Before lapping, you also can check if the IHS is really concave or not. Take a razor blade and put it on the IHS surface. Direct a spot of light towards it and see how much light can pass between the IHS and blade.

Also, the GTX is a good block, You won't gain much migrating to the Fuzion. In any case, the few degrees won't give more OC headroom.

The backplate is definately worth it. Mounting the GTX without it is kinda a lottery. You have really to make many mounts before finding the sweet spot. Also, turning the mounting screws too much will bend your motherboard loosing some contact between the WB and IHS. You have to try, while Priming on small FFT, untightening the screws alternatively till you find a better contact. This is really vital with the GT/GTX blocks.

If you use the bowed version of the WB, this will be even more true. You also have to try horizontal and vertical mounting on the socket.

It can look troublesome to do all these testings, but really worth it. Was also well discussed in the forums here january 2007 then mid june if I remember when Swiftech included the new backplate with the WB.

The easiest option: contact michelle@Swiftech. She will ship you for some 6USD a backplate for your GTX and socket 775. The biggest advantage, is that the mounting will be reproductible and won't depend on the screws tightening strength