I have an Nvidia Geforce 9800GT, and a power supply that can only give out 250W. When i first put the card in a few months ago, the fan ran ok. Then a month later the card began to reach 90 degrees C and overheating, so i then took the side panel off my case and put a small fan blowing on the GPU. Later on the fan on the GPU would only run half-speed, then eventually just....gave up. I know i should have 500W or more PSU for my card, but if the fan has stopped working, is my CPU just starving itself and can't provide its normal supply, or has the heat of the card caused the fan to somehow die? I took the fan off my GPU and hooked the wires to the right voltage of 12V, but the fan wouldnt run, it was hooked up the way it would receive power. Either the fan knows its not on the GPU or its dead, right? I am planning on going out and buying a new 450W power supply....which i hope brings the fan back to life. If not than i guess i need a new fan to fit the GPU..which i don't know where to get one, and i dont buy things online. I've seen case fans and things at BestBuy and what not though..but i dont need case fans