unpeeled lemon

this picture shows the positions of the 6 temp sensors.

Windows 10 I3-8350K Zotac RTX 2070 Gigabyte Z390 Aorus Elite (BIOS: F3 flashed to F10C) Cooler Master 650W G.Skill Tridentz 2x8GB 2666MHz Sorry forgot to add specs! I should also add that i flashed the bios, but the problem remains. Will check up if my board has vrm sensors.

Hi all, I've heard that if you overclock your cpu and it gets unstable, the system will shutdown and the BIOS will reset itself to safe default CPU settings. Is there any other situation in which the motherboard will decide to cut the power and reset the BIOS by itself? I'm asking this because my system recently began to shutdown by itself (crash) after few hours of use and each time the BIOS will be reset, despite having no overclocks. After the crash, it will go into a POST loop with the red LED for CPU lit up. It stops the POST loop after multiple times. I turn it on manually and it loops couple of times before loading windows successfully. I tested my CPU with Intel CPU diagnostic app, passed every test, and each time it crashed, the CPU temps were normal about ~ 40C. One thing I notice is that the first crash of the day takes a few hours of use, then after a restart, it only lasts about 10+ minutes just running YouTube videos. This makes it look like something is overheating, but I've been monitoring every temperature I can see using CPUID Hardware Monitor, and everything seems fine at ~40C. I thought about the PSU overheating, but I'm not sure whether its possible for a PSU to trigger the MOBO into shutting down and resetting the BIOS. Is it the MOBO or the CPU at fault here? Thanks alot!

Update: The new slot lasted almost a day, and it crashed just now. Right now this makes almost no sense to me. The system crashes within dozen(s) of minutes with GPU in the X16 slot, and lasts almost a day in the X4 slot before crashing just now. I really can't figure out whether to blame the GPU or the mobo and I don't have a spare GPU to test, so I guess I'll just flash the BIOS and pray to the pcgods.

I ran on integrated graphics today so far with no issues (about 6-7 hours), no crashes at all (running chrome/youtube/videos and tested couple of games), thanks for the advice. I ran DDU, reinstalled GPU and drivers, and the crashes came back within 15 minutes. I considered the mobo having issues, so i switched the GPU from the PCIEX16 slot to the PCIEX4 slot and my system has yet to crash. Could this be the mobo hardware having issues or the bios having issues? Thanks!

I forgot to add that the crash always results in my bios settings being reset, similar to removing the CMOS battery. I checked and replaced the battery but to no effect. I also tested my ram with memtest86, but using the default 4 pass settings though. I suspected my psu but don't have a spare one to test it. I will do the integrated CPU graphics tomorrow. Thanks for the help.

Windows 10 Pro 64bit 1 year old I3-8350K Zotac RTX 2070 Gigabyte Z390 Aorus Elite (BIOS: F3) Cooler Master 650W G.Skill Tridentz 2x8GB 2666MHz TP-Link T4E Archer wifi card Self-assembled My system started crashing about 4 days ago, first time while I was in a game (apex legends). The crash had no BSOD, just blackscreened, after which my system immediately goes into boot loop multiple times before stopping. I press the power-on button, it boot loops couple of times before successfully booting into Windows. (This first time it crashed coincided with Origin login servers going down, don't know if thats relevant at all.) The crash has no BSOD, so even though I set it to generate 256kb small dump, minidump remains empty. The next day, my system ran without issues for multiple hours. I ran a different game (world of tanks) for couple of hours with no problems. Until at night when i launched origin and apex legends, it crashed in the exact same way again. Restarted after boot loop ended and it didn't last long before crashing again. IIRC, it crashed once in chrome as well. Over the next few days, the situation gets progressively worse: System crashes the moment i load into apex legends lobby, happened twice (not even in a match). Today, it crashed multiple times while on youtube videos. Crashed once wh ile typing this post. From the first crash till now, I have ran multiple checks and diagnoses (CPU, RAM, GPU, Windows System File Checker, SSD etc.) I also did a system restore to 10 days before the crashes occured. Nothing changes and I am really clueless. Thank you very much! SysnativeFileCollectionApp.zip perfmon report.html