Oh well I ended up removing the fans from the accelero twin turbo ii and strapping 2 120mm scythe slipstream 800rpm fans onto it instead. I then undervolted the fans to 7v, so they should run with 470rpm. The result? furmark maxes out at just velow 80 degrees. And I have a little bit of trouble hearing whether the computer is actually turned on. Very satisfied!
I had the exact same problem. Something odd with the twin turbo II. Some say ots silent but i ended up not liking it.
Strapped on 2 Nexus 120mms with ziplocks (tiebinds) at 7v. Total quietness. Amazing, temps are 85c tops with furmark.
Same problem here, sometimes i think i have a bootfailure. It's so quiet!