Question PC randomly shut down and now it won't turn on ?

[Wimpy Mike]

So a little backstory, I posted a thread here a few days ago about my PC not turning on, and after replugging front panel cables (or some other cables), it started to work perfectly fine. Someone on that thread suggested replugging cables, so I thought I found the fix. After that, I was able to play all my games and browse without any interruptions until today.

Randomly, after loading into a game of LOL, my PC just shut off with the RGB still on (all of it), which was weird considering I was just playing another game for a few hours. I didn't think much of the crash and powered the PC off and back on, but this time, it wouldn't start up, and now I'm back to my previous problem. However, now, when I click the case power button or the one on the motherboard, those green lights turn on, and I hear a click from my PSU.

I also noticed that the RGB on my keyboard turns on and then off almost instantly (like flickers once). I also have to switch my PC off and back on to hear the click again. I'm really lost and frustrated here because my PC was working perfectly fine playing more intense games just a few hours ago. I'm happy to provide a video and elaborate on any information if what I wrote doesn't make much sense (sorry it is late). I'm not very experienced, so I'm hoping someone can help me. thanks!

here are my specs again:
mb: AORUS Z690 ULTRA
gpu: AORUS RTX 3090 XTREME
cpu: i9-12900K
ssd: SN850X NVMe SSD 1 tb
ram: AORUS DDR5 5200MHz 2x16GB
ps: Seasonic FOCUS PX-850 +80 PLAT

Here is the picture of what my PC looks like now (same as when I posted the other thread)

https://imgur.com/a/m7Gqldw

View: https://imgur.com/a/m7Gqldw#6GSph9n

 

[Paperdoc]

Try this. It's a bit of a test of some things and may not help much, but it will give a clue. Report results.

UNPLUG the computer from the wall and leave it unplugged for 15 min. Plug back in and see if it boots OK when you push the front panel On / Off button. What this does is allow the PSU to completely reset itself when it has NO power to it. But also, there are some components of the mobo that DO get power all the time even when your system is"Off", and these, too, will be reset this way.

 

[Wimpy Mike]

Try this. It's a bit of a test of some things and may not help much, but it will give a clue. Report results.

UNPLUG the computer from the wall and leave it unplugged for 15 min. Plug back in and see if it boots OK when you push the front panel On / Off button. What this does is allow the PSU to completely reset itself when it has NO power to it. But also, there are some components of the mobo that DO get power all the time even when your system is"Off", and these, too, will be reset this way.

Got it I’ll report back when I’m free, should I also unplug all the other cables like keyboard, mic, etc? Thanks!

 

[Wimpy Mike]

Try this. It's a bit of a test of some things and may not help much, but it will give a clue. Report results.

UNPLUG the computer from the wall and leave it unplugged for 15 min. Plug back in and see if it boots OK when you push the front panel On / Off button. What this does is allow the PSU to completely reset itself when it has NO power to it. But also, there are some components of the mobo that DO get power all the time even when your system is"Off", and these, too, will be reset this way.

Yeah, I unplugged it for a little longer than 15 min, but it still doesn't start. Any ideas?