OH whaaaat?! I thought you were kidding...that...is both insane and awesome.
Love how the guy is using a salvaged refrigerator compressor. Those things are amazing, and you could even run it in reverse as a vacuum pump.
Hmm. Not bad. Not bad.
I don't know if Comair Rotron brand is any quieter, but they do make all kinds of heavy duty fans for removing massive amounts of heat. Look them up, I'm sure you might find something good. I have one of their DC fans I'm using for an electronic project, and I think it is rated at 235 CFM. Not really quiet, but it certainly cools!
Wait--4.2 gigs?! Hot Damn. Forgive my rant but, for your consideration to shopping around for that project:
For a heatsink compound: Arctic Silver, or Antec 5. THE BEST 2 brands out there I have ever seen. (Usually at Fry's electronics.) $20-30 for a single tube and these are 99.9% silver compound.
Next, there's all sorts of approaches to liquid cooling. Maybe consider buying a 'transmission oil cooler', or similar mini-radiator that J.C. Whitney sells in various sizes for fairly good prices. Try eBay auto stores as well, namely look for the Dana-Long brand.
For fans, heat sinks, enclosures, and accessories you might check out places that sell to pro's (and hobbyists) at factory wholesale prices:
http://www.alliedelec.com)
www.Mouser.com) (They send you a big thick catalog for FREE if you buy from them more than once within a month.)
www.digikey.com)
www.newark.com)
Also these electronic surplus stores sell this kind of stuff. Check back from time to time as their stock always changes and you could end up with a steal of a deal.
www.surplussales.com)
www.goldmine-elec.com)
www.electronicsurplus.com/)
www.suburban-electronics.com/)
Best of luck and happy hunting. :D
Ahh I think I worded that poorly, I'm planning on getting up to 4.2ghz minimum, not being 4.2ghz faster than stock speed :p Since that would require... well... monumental cooling (
http://www.overclock.net/cooling-experiments/671177-12-feet-under-1000-square-feet.html)
Anyway, turns out the noctua thermal compound actually beats artic silver 5. I still have a tube of AS if it works better though :p
btw, thanks for those links