Hey everyone, I recently moved from Germany to Brazil and transported my desktop PC. Most parts were taken apart for the journey, and I reassembled everything here. However, my PC seems completely dead now; there are no lights, fans, or any response at all when I press the power button. My setup includes a Gigabyte B450 Aorus M motherboard, a Seasonic Focus 550 PSU, an AMD Ryzen CPU, a Gigabyte GeForce GTX GPU, and RAM that's properly installed. I've checked that the PSU supports the voltage here and made sure all the cables are connected, but the motherboard shows no signs of life. There was a small flash inside the PSU area when I powered it on, which worries me. I'm trying to figure out whether it could be a dead PSU, a dead motherboard, a short circuit, or something else I'm missing. Any troubleshooting tips would be really appreciated!
4 Answers
The power supply is probably the main issue here, especially if it has a switch to select between voltages. Double-check that first. Another possibility might be the RAM seating; often it’s easy to overlook, and it might be worth reinstalling just for safety. Lastly, check the CPU for any bent pins, as that could also lead to this issue, though it’s less likely. Hopefully, it’s just a simple fix with a cable or the power selector.
Have you made sure the power switch on the PSU is turned on? Sometimes that gets overlooked. If you’ve checked that but the fan isn’t moving, consider doing the paperclip test to troubleshoot the PSU directly.
Make sure to also test the PSU separately, disconnected from everything, to see if it’s functioning. You can find a lot of tutorials on YouTube about how to do that safely.
I’d start by checking the power supply first. If you can, try buying a PSU locally to see if that fixes the problem. Also, make sure your wall outlets are properly wired and actually delivering power. That little spark might indicate that the PSU has some power flow—so it’s not completely dead yet! You just need a working PSU to troubleshoot further.
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