I built my PC in 2021, and last night it shut off unexpectedly and now it won't post at all. The debug LEDs go off, but I noticed that the CPU debug light doesn't turn on, and I'm unsure if that's normal. All fans and lights power on, including the case, motherboard, RAM, GPU, and CPU fan, but I'm really stuck here. I'm using an Intel i7-10700, and the display port on the motherboard isn't functioning either. Here's my parts list for reference: CPU - Intel Core i7-10700, Cooler - Noctua NH-D15S, Motherboard - ASRock B560 Pro4, Memory - TEAMGROUP T-Force Delta RGB 32GB, Storage - Crucial P5 500GB SSD, Video Card - EVGA FTW3 ULTIMATE GeForce RTX 3080 Ti, Case - Fractal Design Meshify C, Power Supply - NZXT C 850W, OS - Windows 10 Pro. What steps can I take to troubleshoot this?
2 Answers
It sounds like a power issue since it won't post. A failing power supply could be the culprit, or maybe a loose CPU power cable. Occasionally, RAM can also cause no-post issues. I'd suggest reseating your RAM and checking all power cables first. If that doesn't work, try booting with just one RAM stick. If it's still a no-go, testing with a different PSU could help identify the problem. Also, don't forget to use a surge protector if you're not already!
Reseating the RAM has worked for me in similar situations; make sure to try that as well. If the debug light isn't on, it might indicate a problem with the VGA or boot process. You could also reset the CMOS and try booting without the GPU just to see if it posts. If all else fails, check the CPU for bent pins. Your PSU seems fine since it powers the fans and lights, but that doesn't rule out other issues like GPU failure from a power surge.
I appreciate this advice! I'll check for those bent pins too. Just to clarify, you mentioned debug lights should have no light—mine does turn off, which I thought was a good sign.
Thanks! I’m definitely going to try that and see if anything changes. I did mention in my updates that I had a weird issue a few months back too, could that relate?