EDIT-12-26-2007:...i should have recommended this right from the get-go but i want to correct it now since MANY are having success with this mod....without further ado!
use 3/4" length bolts or 1/2" bolts
Originally Posted by strange|ife
some of the pictures are a little blurry but you can see what i did...it works well...i used AS Ceramique on the mosfets, NB and SB...there are at least 3 rows of 4 mosfets in each row...BUT...the 'TIM' hadn't even melted...it peeled off with no resistance...the NB 'TIM' was likewise...the SB had ceramique making contact on half the chipset.
use #4-40 X 3/4" (or, 1/2" #4-40)" round headed machine bolts...to insulate the bolt head from the bottom of the motherboard, i used a #6 galvanized washer that had a rubber gromet or washer fused to the galvanized washer...just to make sure the bolt head would not be grounded to the m/b case bed, i put electrical tape over the 6 bolt heads....it looked like i had plenty of clearance but being safe is better than being sorry later on.
getting the nut to thread on the bolt gave me some difficulty associated with the NB and the HS over the mosfets...just a tight clearance for the #4 nut to sit over the hole so i could thread the bolt...i slid the nut up against the foot or each side of the appropriate HS and then work from the bottom of the board with turning/screwing the bolt into the nut.
after doing this mod you will need to add at least two 40mm fans, one to the NB and one to the HS over the mosfet area since the mod will increase the heat within the heatpipe..the SB is questionable about adding a 40 or 30mm fan...i couldn't do it since i just added a 8800 GTS VC to my system ...
you kind of help yourself with taking the heat away from the chipsets and mosfets but you are now in need of additional cooling to help with cooling the heatpipe system.
here are the pictures.
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