It's dead Jim, PC help required, others may also opine.

[Beest]

No external devices have been connected, keyboard etc.

So I disconnected everything I could from the motherboard, optical drive, disk drive, video board, memory card etc.

Plugged in mains, green wire tested 2.23 and purple wire 2.34, no lights on the front power button.

Plugged all those peripherals back in, voltages still the same.

I don't have a 24 pin PSU too try, i do have a 20 pin, the green purple and grey wires are all in the same place, almost all of the other wires are the same. one of the red wires on the 24 is white on the 20.

I saw the paper clip test early in investigations, it does make the fans power on.


I found some 600 ohm and 1K Ohm resistors lying around and tried plugging them into the purple wire, also 2 in parallel, no voltage drop.

I look for some 100's