Question Help Please. Motherboard CPU light on

Sugua

Junior Member
Aug 7, 2025
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Hi there, built my computer about 2 years ago and haven't had any big issues.

Some time ago, i restarted it and it failed to boot. It failed to boot multiple times over a few hours so i gave up and went to sleep. The next day it booted up fine.

I'm today having the same issue, i was trying to update my bios using Gigabyte Control Center app, it restarted and i haven't been able to boot up since.

I notice there is an orange CPU light on my motherboard.

I've removed my RAM and reinserted (did not try to run only 1 RAM stick) (my configuration is in slots 2 and 4 as per manual https://download.gigabyte.com/FileL...1204_e.pdf?v=ee84ce5fae4b1bae08e94817d40cdb18)

Hardware:
CPU: i7-13700
GPU: Asrock Radeon RX 6950 XT Phant
Motherboard: Gigabyte Z790 AORUS ELITE AX ATX LGA1700 Motherboard
RAM: Corsair Vengeance 32 GB (2 x 16 GB) DDR5-6000 CL36 Memory
PSU: Cooler Master PSU V Series V750 Gold V2 (MPY-750V-AGBAG-EU) (MPY750VAGBAGEU)

If anyone can help me that would be greatly appreciated.
Thanks
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
Super Moderator
Aug 22, 2001
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My first suspect is the flash got nerfed. Unplug the power cord, press the power button to discharge the caps, and let it sit for an hour. It is supposed to load the backup bios automatically. So hopefully when you plug it back in and press the button it will load the backup. Next use the clear CMOS button on the board. If it still won't boot, you will need another system to download the latest bios and put it on a USB drive. Then you can use the Q-Flash plus button on the board to try to reflash the bios. As it does no require the CPU, GPU, or ram to work.

Still no joy? If your PSU came with a self power tester use it according to the directions. That will help determine if the PSU is at least working to some extent. As I've seen a fair number of owners have the Cooler Master series die prematurely on them. The RMA service experiences were mostly good, so that's encouraging if you have to replace it.

Reseating everything is always a good idea too. Power cables, ram, GPU, even CPU. It could probably use new thermal compound or a thermal pad by now. It's good to go barebones with no extra expansion cards or I/O stuff plugged in.

If nothing gets it to boot, the next suspect is the CPU. Raptor Lake is plagued by accelerated degradation. Perhaps you knew this and that's why you were trying to update the bios?

Good luck. Let us know how it turns out if you come back to this thread.
 
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