I've had my PC for 7 years, and it's been randomly shutting down since I built it. The only temporary fix I've found is to mess with the 24-pin cable. When the shutdown happens, the PC seems partially on—fans don't spin or light up, but everything else still runs, and I can shut it down by holding the power button. I've tried reseating the 24-pin cable but it doesn't solve the problem long-term. Has anyone else experienced this, and do you have any advice on a permanent fix?
4 Answers
Sounds like a classic case of a faulty PSU or a bad connection somewhere. Have you checked if the cable securely clicks into place when plugged in? Sometimes the clip can break. If you haven't replaced the PSU or motherboard in all these years, it might be worth looking into those. You might find some wear and tear on the connectors too—check for any bent pins!
Definitely sounds like a power supply issue. You can try cleaning the connectors and reseating everything, but if that doesn't work, replacing the PSU could solve your problems. Overheating can sometimes cause shutdowns, but given your description, I lean more towards connection issues or PSU malfunction.
If it feels like the cable isn’t seated well, it might be time to replace it. Just because it clicks doesn’t mean it’s making a good connection. A new cable or a new PSU might be your best long-term solution.
This might be a simple fix but could be a bit annoying. First, try a different 24-pin cable if you haven’t already. If that doesn’t help, consider replacing the PSU. It could be that the cables are just too loose, leading to inconsistent connections.
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