|ok, i hope this is enough info here. if not, let me know anything else you need.|
the other day i started up my Emachines t3990 and it would make it to the logo screen, then restart itself and repeat. tried turning it on/off but it made no difference.
decided to clean the inside of the tower because it had been a few years and badly needed it anyway. took the power supply unit and all fans out for better access while cleaning it. put everything back together, tried starting and now it says "system fan is not operating correctly. check system fan operation" and won't go past that screen. checked all wires, connectors, and pins in the connectors and it all looks good. all 3 fans are working too! not sure what happened here, but i will try any advice anyone can give. can anyone specify which fan is my "system fan"? that might help me narrow it down. thank you