One day it was good, next day, not so much..Made no changes... When i turn it on, I get a flashing amber led, on start button, on monitor, "input not found....check video cable and video source"...
I checked the PSU, no fans were running... I put wires on black and green, removed all connections on PSU, and the fan started, but when I put all connections back... no fan.... Is it mobo, how do I check that? This is old computer, so it may have just died?

If anyone can make any suggestions, it sure would be helpful..... Thanks for any HELP!!