First post, by Runar77
Yesterday I installed a brand new AT PSU in my 486 computer (Labeled "Antec PP-300V", but it's not Antec apparently. Stay clear of that cr*p). When I turned on the computer, there was one beep from the PC-speaker, it checked the RAM and correctly told me that there was no keyboard detected. Then the room went dark as the PSU blew my fuse.
Turned the fuse back on, and tried to turn the PC on again, but nothing happened. The PSU was dead.
I installed the old PSU, and I can hear the fan in the PSU spins up, but nothing else happends. Except the PC speaker gives me a very short "scratch", and the CPU gets warm. But that's it.
Are there any way to check that the motherboard really are dead?
Could there be an easy way to fix it?
Could the PSU have killed more of my components?
I attach some pictures from the inside of the PSU.