make sure the RAM is seated properly that causes weird things, but there are probably a few different things it could be...
you can by PSU testers cheap enough
https://www.thewarehouse.co.nz/p/power-s...67477.html
but I usually just swap out the PSU with a known good one and see if it powers up
One obscure problem I have came across, with the brother in laws PC, when he assembled it he had used the GPU connector into the CPU connector feed since they can both be 8pin connectors. I thought the plug configuration would have been different but apparently not. The PSU connector functions are written on the plug.
you can by PSU testers cheap enough
https://www.thewarehouse.co.nz/p/power-s...67477.html
but I usually just swap out the PSU with a known good one and see if it powers up
One obscure problem I have came across, with the brother in laws PC, when he assembled it he had used the GPU connector into the CPU connector feed since they can both be 8pin connectors. I thought the plug configuration would have been different but apparently not. The PSU connector functions are written on the plug.
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