Thats Amazing!!!!
5 years!.
I highly recommend fans, i have upgraded my A4000T fan with a ThermalTake, its noisy but it works.
I also ordered some fans from the USA, they do PowerPC fans and Voodoo Card Fans.
As i know that my PowerPC fan is not realiable and cannot trust it.
http://www.tennmax.com/If anyone else wants to stop the machines from frying, then order a fan.