I have actually had this problem a couple of times, and each time what i had to do was remove everything from the computer case (motherboard and everything connected to it). then put an antistatic bag underneath the mb and see if you are getting a signal. If you are than remove the bag and place one screw in at a time do determine if it is a ground problem. Amazingly this has worked everytime i have lost a video signal due to a power surge; i guess it just resets or something. Anyways i hope this helps anybody else with this problem.

Thanks,
Ryan

how much was it to replace the motherboard, and did you loose any information/files etc in the process?

can you please explain in detail to a novice computer user please???

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