PC Shuts down without BSOD

[2PartAuthentication]

Currently having terrible issues with my brother's rig - just crashes randomly without any BSOD and shuts down completely.

Specs:
Asus Z97-Pro

4670K @ stock

2x8GB G-Skill Aegis 1600Mhz

Freezer i30 cooler

RM650i

Gigabyte GTX970 G1 Gaming

Windows 10 Pro 64bit

 

Had some issues earlier: system didn't post at all (post code 00). Went and swapped the PSU which was some generic 550W 7-8yo garbage that probably killed his last mobo after a power surge (had a 3570K on a z77) for a Corsair RM650i, Got post code 15. Tried swapping memory, CPU (for my 4670K, which ran completely fine OCed on my rig, also the 4690K runs great on my rig without issues on a Z97-Krait SLI), reset CMOS via battery and finally managed to get it to post.

Problem is - doesn't matter the load, doesn't overheat, shuts down completely after around half hour of use, no BSOD or anything.

Tried updating to the latest BIOS (Version 3503), still the same outcome.

Gonna try to format the OS Drive today hoping that'll help, maybe I'll swap the CMOS battery also or something.

Anything else you might think is the culprit here?

 

Thanks!

 

[Skiiwee29]

A) windows wont cause it to power down without a BSOD or windows shutting down screen.

B) CMOS battery wont cause it to shut down. This only saves the BIOS settings you have.

 

Usually if it just fully shuts down like this means the power is being lost one way or another. I would double check all your pins on the 24pin connector and PSU EPS pins as well. I had an issue with sleeved extensions where a pin out came loose and was causing the exact same issue. 

[EsaT]

Windows installation could have gotten corrupted, if it had garbage PSU which caused problems earlier.

Though it should cause restart instead of shut down.

 

Anyway you could still disble auto-restart of system failure

https://support.hp.com/au-en/document/c03413399

 

Also might want to check if there's actually some data about those:

http://www.resplendence.com/whocrashed

Have you checked if Event Viewer shows anything more serious time marked before shutdowns?

[2PartAuthentication]

1 hour ago, EsaT said:

Windows installation could have gotten corrupted, if it had garbage PSU which caused problems earlier.

Though it should cause restart instead of shut down.

 

Anyway you could still disble auto-restart of system failure

https://support.hp.com/au-en/document/c03413399

 

Also might want to check if there's actually some data about those:

http://www.resplendence.com/whocrashed

Have you checked if Event Viewer shows anything more serious time marked before shutdowns?

Checked event viewer, can't really see anything unusual, I'm gonna try again now to see if it shuts down, downloaded whocrashed also.

2 hours ago, Skiiwee29 said:

A) windows wont cause it to power down without a BSOD or windows shutting down screen.

B) CMOS battery wont cause it to shut down. This only saves the BIOS settings you have.

 

Usually if it just fully shuts down like this means the power is being lost one way or another. I would double check all your pins on the 24pin connector and PSU EPS pins as well. I had an issue with sleeved extensions where a pin out came loose and was causing the exact same issue. 

That's what I was thinking, I'm just trying to narrow things down before I absolutely give up and look for a 2nd hand board... 

New PSU and the cables looked fine to me, will check onboard inserts to see if they have some issues.

 

Thanks for the answers!

[2PartAuthentication]

2 hours ago, EsaT said:

Windows installation could have gotten corrupted, if it had garbage PSU which caused problems earlier.

Though it should cause restart instead of shut down.

 

Anyway you could still disble auto-restart of system failure

https://support.hp.com/au-en/document/c03413399

 

Also might want to check if there's actually some data about those:

http://www.resplendence.com/whocrashed

Have you checked if Event Viewer shows anything more serious time marked before shutdowns?

 

2 hours ago, Skiiwee29 said:

A) windows wont cause it to power down without a BSOD or windows shutting down screen.

B) CMOS battery wont cause it to shut down. This only saves the BIOS settings you have.

 

Usually if it just fully shuts down like this means the power is being lost one way or another. I would double check all your pins on the 24pin connector and PSU EPS pins as well. I had an issue with sleeved extensions where a pin out came loose and was causing the exact same issue. 

Just checked again, nothing seems out of the ordinary, whocrashed can't find dumps... Also checked connectors and everything seems fine.

Should I look for something else or just call it quits and get a replacement board?

[Skiiwee29]

2 minutes ago, 2PartAuthentication said:

 

Just checked again, nothing seems out of the ordinary, whocrashed can't find dumps... Also checked connectors and everything seems fine.

Should I look for something else or just call it quits and get a replacement board?

well something is causing the PC to shut down on you and power off. The RM650i is more than enough to handle your system at full load, so I dont think its a power supply issue. Really the only other variable is the motherboard at this point from what ive read on the troubleshooting steps you have already done. It can happen with bad overclocks, but you are running all stock clocks and voltages, so that shouldnt be an issue. 

[2PartAuthentication]

40 minutes ago, Skiiwee29 said:

well something is causing the PC to shut down on you and power off. The RM650i is more than enough to handle your system at full load, so I dont think its a power supply issue. Really the only other variable is the motherboard at this point from what ive read on the troubleshooting steps you have already done. It can happen with bad overclocks, but you are running all stock clocks and voltages, so that shouldnt be an issue. 

Dead board then...

Thanks for the help!