Question PSU not starting but volts OK

gatsman

Prominent
Feb 11, 2019
6
0
510
0
Hello i have some issues with my PSU if anyone knows what might be wrong with it.
The PSU model is Thermaltake Toughpower 750w.

The power supply will not start from the case switch and will not start if i short circuit the pins on the motherboard.
If i short circuit the green-black connectors on the 24pin cable it will start normally and measuring the volts on the connectors they all turn out to be fine. (https://en.wikipedia.org/wiki/ATX#Power_supply).

I 've been using 2 motherboards/PCs for my tests and the original motherboard that it was working without any issues until yesterday now works perfectly with a different PSU.
I 've been checking with only the 24pin & CPU cable connected to the motherboards it's a modular PSU so i removed all other cables.
Anyone have any advice?
 

ASK THE COMMUNITY