Ok so the bad news is that the TR2 is one of the worst power supplies on the market. Thermaltake sells great cases and coolers....power supplies, well not so much.http://www.eggxpert.com/forums/thread/323050.aspx
The TR2 has very high ripple and noise that can make a computer unstable especially when overclocked. It can also even damage your graphics card and motherboard. The only thing it has going for it is that the TR2 line can generally supply it's rated wattage even if the power is dirty.
I would not trust it. I certainly would not try and overclock with it. My best advice to you is to replace it with something good ASAP.