Random power offs caused by shitty reset button on case

[dyc3]

A couple months ago, I built myself a new PC and decided to go all in. My build: https://pcpartpicker.com/list/Dq2spG (minus the cooler because I couldn't mount it). Ryzen 2700X, 1080 ti, 32gb RAM, the full nine yards. Overall, I was pretty happy with my build, and it ran games beautifully. I only have one incredibly frustrating problem with this build, and it's unfortunately a deal breaker. 

 

At seemingly completely random intervals, for no apparent reason, the computer will shut off. Not a clean shut down, but a hard shut down, like pulling the plug out of the wall. The fans will keep spinning, and it just boots right back up. These power offs are completely random. They can happen 10 minutes after boot. They can happen an hour after boot. They can happen a day after boot. It doesn't matter what's running either. I could be playing games, or just browsing the internet. OS doesn't matter either, I dual boot Ubuntu 16.04 and Windows 10 and these random power offs happen on both. Today I was in Ubuntu's recovery mode trying to fix my btrfs partition (it wouldn't mount because a random shut down messed with the transaction log), and I got a random shut down there too.

 

My motherboard came with BIOS version 0222, and after talking with ASUS tech support, they recommended I update my BIOS to the most recent version, which is version 4018. Unfortunately, this didn't fix the problem.

 

I'm definitely going to be following up with ASUS tech support, after I get settled into my dorm this year. If anybody has any ideas to fix this, I'm all ears, but otherwise I'm probably going to have to replace my motherboard.

 

Edit: I'm going to try to reset my power cables, and a different power supply if possible.

[Firewrath9]

How do you know its a mobo issue? Use a UPS or line conditioner for the power

[Ashleyyyy]

yeah it could be a PSU issue... 

 

just because the fans keep spinning doesn't say much. fans keep spinning for a few seconds after the power to them goes off... 

[dfsdfgfkjsefoiqzemnd]

Random shutdowns often are the result of fluctuating voltage, usually caused by a bad PSU rail.  Test with another PSU first, then look into the rest of the PC.

[dyc3]

12 minutes ago, Firewrath9 said:

How do you know its a mobo issue? Use a UPS or line conditioner for the power

 

5 minutes ago, firelighter487 said:

yeah it could be a PSU issue... 

 

just because the fans keep spinning doesn't say much. fans keep spinning for a few seconds after the power to them goes off... 

Why would it boot back up automatically without user interaction? That's a feature that you find in server boards, not consumer ones. I do have a UPS, a CyberPower 1350VA, which is also fairly new, and I didn't have issues with it using my old build.

[AskTJ]

Can't blame the motherboard straight away. Most likely a power supply issue. Test it with a new one.

[Ashleyyyy]

Just now, dyc3 said:

 

Why would it boot back up automatically without user interaction? That's a feature that you find in server boards, not consumer ones. 

i've owned consumer boards that do it. it's a setting in the bios/uefi called restore after power loss or something. every manufacturer has a different name for it.

[LienusLateTips]

13 minutes ago, dyc3 said:

 

Why would it boot back up automatically without user interaction? That's a feature that you find in server boards, not consumer ones. I do have a UPS, a CyberPower 1350VA, which is also fairly new, and I didn't have issues with it using my old build.

Likely a power supply issue, that's known as bootlooping. LG devices especially are famous for this, but it's common on faulty computers too.

[Ramaddil]

I was thinking power supply also when I read the OP's post.  Either that or a overheating issue, could check to make sure your H/S and fan are properly mounted.  Given the random nature of the reboots it could be either imo.  But Power supply is top of the list for me as well. 

[dyc3]

I haven't had a random shutdown for about 24 hours now. The only thing I did was unplug the reset button on my case. I think the button might be a little sensitive.