Naturally, as I think that the majority of us are in this subreddit, I am tech support for all my friends; However, recently I have had my first "unsolved" mystery...
My buddies computer failed to post. So he calls me up and asks me to help him, the first thing I made him do was re-seat the RAM naturally, and then check single sticks. as that seems to be the quickest thing to cause any issue. Then I realized that we were working with a solid white VGA LED. So naturally, we try some Graphics card Debugging, reseating it, unplugging connections from the power supply, and the Graphics Card, plugging them back in etc. Plugging it into a separate PCIe slot.
Also notable is that he has no NVME Storage devices. He only has a 2.5' SATA SSD. I also had no means to a spare Graphics card, Spare PC etc. So I was not able to verify that the Card hadn't died. I also tried the "turn it on, unplug video outs, turn it off, turn it on, turn it off, plug video outputs back in and then turn it on" trick, that didn't do anything. Now I am wondering if it's a BIOS issue. We did reset CMOS by Bridging JBAT1. Didn't work, I am going to flash it, but I obviously can't get it to post.
Finally, after I was at my wits end, he tells me that he had the computer on over night, and then it just turned itself off and now won't post. So now I'm straying towards a potential Power Supply failing issue. This seems most likely, but I don't think he want's to go down a "Fix It" rabbit hole...
We are working with system specs of -
CPU: i7 10700k
RAM: Vengeance 32gb kit (2x16) 3200 cl16
Graphics Card: RTX 3080 Founders edition
MB: MSI MPG z490 Gaming Plus
Power Supply: RM850e (I Don't know what year, but I do know that it's new enough to have those braided style cables)
All In one water cooling, don't know the brand, and case looked like a h7 flow.
Any ideas that could help would be awesome, otherwise I guess I'll tell him to take it to someone :'(.
The only reason this upsets me is because I've never came across a computer issue that I wasn't able to troubleshoot and this would be my first one. I don't want a loss on my record.