Fans are running but power light is off and no display?

Lrobert

Honorable
May 14, 2013
9
0
10,510
First of all, this is an old desktop from around the year 2000. It had this motherboard command which was just 1 long beep over and over, and after some research on the internet, figured it was the RAM that wasn't connected correctly(the power light would at least go on). After I put it the right way and tried turning it on, the beep was gone but the power light won't come on anymore even though the system itself is running since the processor's fan and the PSU's fan go on. The HDD light goes on for exactly 30 seconds and then goes off. The PC just stays on with both, power light and HDD light off after those 30 seconds and also, there is no display whatsoever on the screen at any time. Any suggestion? What could be causing this problem? I've tried it with 2 different HDD delivering the same results, if it matters.