Random poweroffs and bootloops

[Ambyjkl]

Hi everyone

I have a 2+ year old rig running an 8700k on an Asrock Fatal1ty Gaming K6 Z370 motherboard. My computer occasionally powers off at random even when running simple workloads like browsing the web, and when I try to turn it back on it enters a bootloop sequence where I don't get a POST, case fans don't turn on, and after about 10 seconds it powers off again and then turns back on. The same also happens sometimes when I put my computer to sleep and try turning it back on from there, or even sometimes on a cold boot.

I have all overclocks turned off at this point, basically stock BIOS settings, and I even removed my 5700 XT graphics card and I'm only using integrated graphics to try and eliminate possible sources of the problem. How I get it working back up is a mystery: it involves dozens of RAM stick reseats, shorting CMOS jumpers, trying to boot without the CMOS battery in, etc, in a random disorganized fashion. Once I'm able to boot back up, I'm able to maintain the working state for anywhere from a few hours to a few weeks, even with a lot of sleeps and shutdowns in between. What I find frustrating is the nondeterminism of this behaviour and how it disrupts my workflow.

Any ideas? As a last resort, I do have a brand new Z390 ITX motherboard for a future SFF build which I could try swapping in, but I would like to avoid it as much as I can in the interest of time.

[Haro]

can you tell us about your other specs 

like the psu and hoe old is it ? 

did you try updating the bios ? 

[Ambyjkl]

21 hours ago, TofuHaroto said:

can you tell us about your other specs 

like the psu and hoe old is it ? 

did you try updating the bios ? 

Actually, I think I found the culprit. It’s definitely a connectivity issue with the ram sticks. Pressing and holding down the ram sticks while turning the computer on worked 100% of the time. Some vibrations in the case, or from outside, makes the connectivity go loose ever so slightly, which in effect is the same as yanking the ram sticks out of a running computer. Is there a way I can get a tighter, more reliable, fit on the ram slots? For starters, I’m going to operate my pc horizontally, so that gravity helps with keeping the ram sticks in place.

[Haro]

6 minutes ago, Ambyjkl said:

Actually, I think I found the culprit. It’s definitely a connectivity issue with the ram sticks. Pressing and holding down the ram sticks while turning the computer on worked 100% of the time. Some vibrations in the case, or from outside, makes the connectivity go loose ever so slightly, which in effect is the same as yanking the ram sticks out of a running computer. Is there a way I can get a tighter, more reliable, fit on the ram slots? For starters, I’m going to operate my pc horizontally, so that gravity helps with keeping the ram sticks in place.

Hmmm that's weird 

Idk any other way of making the slot more tighter for the ram 

This is a stupid question I know but when you mount the ram 

Maybe make sure you have the tabs on the side locked when. You install your ram