I recently built my PC with a new motherboard and an Intel i5 12400F processor that my friend generously gave me. After putting it all together, it booted up fine initially, and I managed to install the necessary updates for the motherboard. However, I noticed that the CPU temperature was reaching 80 degrees Celsius, so I decided to power it down and check things out. I discovered that the Intel stock cooler wasn't correctly secured, and it looks like I added too much thermal paste, causing it to spill onto the sides of the CPU. I cleaned it up thoroughly with 99.9% ethyl alcohol using a Q-tip. Now, when I try to power on the PC, it turns on for a split second and then shuts off instantly. I'm concerned—did I damage my CPU? By the way, my English isn't great. Also, I can't test the CPU on my old motherboard since it died, and I don't have spare parts to work with.
3 Answers
First off, don't panic! It's very unlikely that you actually killed your CPU. I recommend checking for bent pins on your motherboard. It can really mess things up if any pins are out of order. If they look fine, that’s a good sign. Sometimes just reseating everything, including your CPU and RAM, can help. Make sure all the cables are securely connected as well; it's easy to knock something loose while fiddling around. Good luck!
Sounds like what you’re experiencing can happen if the motherboard isn't getting a good response from the CPU. This usually happens due to a couple of reasons: make sure your CPU power connectors are connected correctly. If they’re not getting power, the system will turn off immediately. Also, double-check if there's any thermal paste contamination in the CPU socket—any residue there can cause serious issues!
You may have inadvertently damaged something while cleaning, but it’s more likely that there’s some leftover thermal paste in the socket. Carefully remove the CPU and check it thoroughly. Once you're done, let everything dry completely before you reassemble. If all else fails, it might be worth trying a different PSU if you can borrow one to rule out power issues.
Good call! I had a similar issue once, and it was just a matter of a dirty connection.
Yeah, I've had that happen before. It turned out to be a loose cable for me!