I'm having an issue where my PC shuts off about 15 seconds after I power it on. It's been a while since I last used it, and during the first boot attempt, I saw the BIOS splash screen briefly before it turned off. Since then, I haven't been able to get that far.
I've tried a few things to troubleshoot: I've reinserted the RAM sticks, tested each one individually, and switched around the slots. I've also replaced the CMOS battery and checked the GPU connection. One thing to note is that the thermal paste for the CPU cooler is completely gone, so it's not secured properly, but I didn't think that would cause an immediate shutdown like this. I'm planning to fix that soon, but first, I want to figure out if the problem could be with the PSU or motherboard. Unfortunately, I don't have a spare power supply to test. Any advice? Thanks!
4 Answers
Just to share some personal experience, I faced a similar issue where I overlooked the thermal paste. After replacing it, my PC booted up flawlessly! Sometimes it’s the simple fixes that solve the biggest problems!
Yeah, you definitely shouldn’t run your CPU without thermal paste. It’s designed to shut down to avoid overheating. Fix that loose heatsink, and I bet your problems will clear up! Don’t neglect that!
It sounds like overheating might be the culprit. With thermal paste gone, your CPU could be shutting down to prevent damage. I’d recommend repasting the CPU cooler as your first step before diving into other components. You might be surprised how much of a difference that can make!
If you're having trouble accessing the BIOS, how can you check temperatures? It’s a bit tricky if your system is shutting down so fast. But given your situation, I'd definitely focus on getting that thermal paste sorted first.
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