I'm going to put my neck on the chopping block here. In my experience, there is nothing wrong with the Volcano 11+. I had one, and it ran just as cool as my SLK-800.
My current rig- Epox 8k9AI, T-Bred 1700+, SLK-800 w/Smart Fan II at full blast.
Idle cpu temp 35C, case 32C @stock speed. (I do OC now, but didn't with the Volcano so can't compare those temps).
Same exact temps as with the Volcano 11+. I had the Thermaltake on my rig before I read here how it was garbage, and so I spent another $30 on the SLK-800, and $10 on another SF II, to end up exactly where I started. 32C and 35C. Not one degree cooler in the exact same setup.
It worked out though, my brother had a B-day and so I built him a PC:
Epox 8K5A, T-Bred 1700+ running stock with the Volcano 11+ and Smart Fan II full blast, idle cpu 35C, case 32C. Same exact temps.
Does the Volcano 11 lose it at higher speeds/ temps? I've never OC'ed my 1700+ to 2Ghz with the Volcano, but I did with the SLK and it was fine. Just my vidcard didn't seem to handle it
I'm not trying to be a smartass, I just see people always complain about Thermaltake and never give specs or stats or anything showing us why Thermaltake sucks so bad.