I have an EVGA 8800GTS 640Mb PCIe card that has just died on me. The symptom is that when you press the power on button, the PSU clicks, the case fans jump then the PC just stops, no POST nothing!
I have tried my sons 9800 GTX in my PC and that works fine so i know it is not the PSU or the Motherboard. I have tried the EVGA in another PC i have and the same symptoms occur.
The card is over a year old and i know EVGA have a year +1 warranty, but only if you register the product when you buy it. Needless to say i did not, i had just moved into the country from the UK and i had a few other things on my mind at the time!!
EVGA customer support just say sorry but we can't help you. The card cost quite a few bucks new, so i was hoping there would be someone out there that has a clue what my issue is, or they know someone who might have or do repairs?
I'm handy with a soldering iron and have been taught PACE repair techniques if this is the answer.
This is an extremely impractical idea. The only real thing you can do is get another GPU. Likely the problem has something to do with the core, the only way it could be repairable is if it was a memory or capacitor problem, but those don't totally kill a video card so suddenly like the symptoms you listed. Get a 9600 GT or a 4830 for $100 and gain performance over your old card.