Unfortunately the problem came back. When I connect a power button to the front panel header on the motherboard, the same problem happens (computer turns on and then turns off after a few seconds). When I disconnect the power button and turn the computer on with a screwdriver, the computer...
I removed the motherboard from the case and built the pc on cardboard, It finally turned on and stayed on. I put the motherboard back in the case and it worked again. It must of been a shorting issue. Thanks for everyone's help.
I tried with my old motherboard. Plugged in the psu into the motherboard, but with no cpu, ram, cooler, case etc. It did not turn on at all, trying to power it on with a screwdriver did nothing. I'll try with the new motherboard when I have time.
I tried on 2 motherboards (including 1 new one) and it's the same issue. How do I check if there's a short? The cpu fan is connected to the cpu fan header
I borrowed a working PSU from my friend. I haven't tried plugging in everything yet, buy when I plug in the 24 and 8 pin, the PSU spins for 4 seconds and then turns off.
Is there a way to check if the PSU is causing the issue without needing to buy a PSU tester? I did the paperclip test, but I'm assuming that isn't a reliable method?
I tried that now. Unplugged everything, besides 24 and 8 pin and 1 stick of ram. The same problem occurs. I then tried to power it on with a screwdriver, nothing happens.
I'm not able to switch the computer straight back on, the power button doesn't do anything. I have to unplug the computer and then re-plug it for it to turn on (and then turn off after 3 seconds)
I'll try removing the RAM and graphics card and connecting a speaker. I actually have two...
It's a loud fan noise. I don't have another PSU to test and I didn't test the PC outside of the case. I tried the paperclip test on the psu and it passed.
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