pgwalsh said:I'd be careful about using another heatsink. I've heard the B/W ZIF can crush or get damaged with a hs that's too heavy.
This is a good idea, but can you recommend a fan that would sit on the HS?
I think a socket A pc cpu fan is what guys in the upgrade reviews at accelerate your mac have been using on b&w's. they screw right onto it. not sure how you power them though but there is a way to as many others have done this.
go here to find more answers: http://forums.xlr8yourmac.com/cpureview.lasso
as long as you can keep an overclocked chip cool then all will be well. the combo of the paste and fan will bring any cpu down 15-25c. also, the b&w is just a great machine and has pretty good air circulation. its also a very reliable tower with a good logic board. most of all the rev. B models. they are the kind of towers worthy of being used and upgraded till they no longer can be used or upgraded. good luck to all you b&w owners!