REX LN2 NB?
 

Put a pot on top where the waterblock goes?

Or cut up the chipset heatsink apparatus to isolate the NB?

lol i am just flat out putting LN2 and DIce on the damn NB heatsink lol
then block it out
lmao
i'll post some pix soon =)

Isolation is probably best. Heatpipes are not designed to work at -190C.

But mainly I think you dont want to uber freeze the VRMs...

Condensation on the VRMs can't be good.

For resale reasons, you might want to take the old heatsink off whole... and take sinks off a a dead mobo or something instead as well...

yeah i just place more orders on the Design Kneaded Rubber Art Eraser lmao :thumbsup:
i just ordered 12 should i get more?

12 is plenty.. If you ordered the jumbos... I ordered a box of them after getting 5 or 6 locally. Still have not opened the 12

If you use vaseline too you will go through it quicker though (throw out eraser that gets PJ on it)

I've done it both ways on various mobos.

Really it depends on how cold the NB can tolerate.

If the REX NB can tolerate less than -120 to -150, then I'll isolate it. But if it bugs at -30 to -40 anyway, it would be much better to leave the heatsink intact.

I had good results with pretty high temps, ~-20 if i recall. I just put crushed dry ice in the nb pot and no acetone

http://img155.imageshack.us/gal.php?g=img0056am.jpg
take a look at here ^_,^
that's what i did