Randomly Shuts Off New PC

[I'm Really Bad]

Brand New PC:
EVGA GTX 1080ti
Intel Core I7 8700k
G.Skill Ripjaws V (2x16gb)
Aorus Z370 Gaming 7 Motherboard
Corsair HX 750 PSU
Western Digital Black 6TB HDD
Corsair Hyper 212 EVO

With all these great parts you would expect a simple game to run fine. Started up 7 Days and got the whole "you're new" deal out of the way. Hosted a game for my buddy and we played for about 30 mins before the game shut off my PC without any error codes, or prompts involving crash reports. The whole PC shut off like it just lost power, but I have an APC Backup Battery and Surge Protector so i know i didn't lose power through my outlet. My case has 3 standard fans in it, and i have the Corsair Hyper 212 EVO to cool my CPU down so it shouldn't be a cooling issue. I also upped my fan speeds on my BIOS fan graphs to never let any parts get above 60 degrees Celsius. It's a new PC so i have been closely monitoring my performances and it doesn't seem to ever jump higher than what i want it to be at. I read online that it could be 3 things, PSU, overheating, or software bugs. So i re-installed all my software in relation to gaming, and 7 Days but I got nothing to show for it. I don't think it could be overheating because of how closely i monitor fan speeds and core temp while i game. I think it might be the PSU but before i go spend 100$ on a new one i would rather see if anyone has imput they could help with. Thanks!

Update: If it helps to know, when the PC shuts down, the game saves automatically so when I load in it's right where i left off. But, because the game shuts down i need to go back into the settings and fix volumes, graphics, and sensitivity. It struck me as something that might be a bug when the game saves but I'm unsure as to how i check and see if my theory is correct. Because of all my parts being top-spec material, i always run games at max settings because why wouldn't you? I'm going to go toy with settings and see if it will run on medium settings rather than ultra and post another update later. If you took the time to read through this, thank you.

[Hurkaleez]

I had this problem, was due to my CPU overheating. Your BIOS is set to auto shutoff everything when a certain CPU temperature is reached. This would mean you need to beef up your cooling system/airflow through your tower.

Google up a search for cpu temp tracking. Always have that on and keep an eye on it.

A suitable temporary fix would be to just get a regular fan around your house and put it in front of your tower and turn it on. It works quite well to keep the temperatures at bay until you can get your proper fix up and running.

[TherinS]

My current Gigabyte motherboard has a firmware (?) bug that I've yet to patch. When resuming from suspend, in both Windows and Ubuntu, the CPU cooling fan rotates at either a very slow speed or not at all. The high temperature warnings do not sound and, if anything CPU intense goes on, it will hit that point where the BIOS shuts down the computer due to temperature. Upon rebooting, I can see the fan spin up to expected speed.

My solutioin? Reboot after waking from suspend before I do anything intense.

[SmilesLikeJoker]

Normally, from what I've seen, when a pc shuts down when there is a hardware problem. Programs may crash and force you to reboot your system, but they shouldn't just shut off your pc.

I'd double check to make sure all hardware is seated nice and snug. Run a memory test to ensure you don't have a bad stick of RAM (you'd be surprised how often this happens and the issues it can randomly cause). Better yet, try some of the bench marking stress tests out there. If it's related to hardware, it should rear its head up in those tests. Lastly, a failing PSU can cause full reboots when it has to provide power to some of those hungry components like your video card.

Good luck!

SIDE THOUGHT: I can't tell you the issues I've dealt with when it comes to battery backups. It may not be able to handle the power draw when running intensive programs. Take it out of the equation for troubleshooting purposes.

[zz]

Does it shut down or reboot?

Control Panel -> System -> Advanced System Settings -> Advanced tab -> Startup and Recovery Settings -> System Failure -> Automatically Restart checkbox.

If the system shuts down without an blue screen (after unchecking the restart box) and there is no error in the event log, I would expect the problem is a hardware or power issue. There was an significant error or lack of power and the system hardware would/should not continue after that.

Windows goes to blue screen for critical operating system or driver software errors/issues and non-critical hardware issues that it detects.

Also, the fan issue could be worked around by setting a constant speed instead of it being managed?

The APC Backup Battery and Surge Protector should be 500-600W at a minimum and there could be issues on power draw peaks and whether or not it actually meets its specs. Some battery backups are power conditioners with a battery, so all output ac power is re-generated by the units electronics. Also, is it warm?

Corsair makes pretty good power supplies. It is an old one, the capacitors could have degraded some.

[Ch53dVet]

Trust me, when, I say, that after many years of experience troubleshooting PC problems that the #1 reason for a computer to suddenly turn itself completely off is "HEAT". Take off the side panel to your computer case and place a good sized floor fan to blow over your computers guts (without being hooked up to the battery backup) and see if you can get the unit to shut down, if it doesn't you have a heat problem for sure.

Things to look for when a pc shuts itself completely off due to heat.
1) CPU overheating
2) Fans, Fans, Fans, anything with a fan on top of it needs to be checked, don't forget to check to see if the fans inside your PSU are working, usually, they come with two, one in the front, one in the back, the cheaper units sometimes have just one fan on top. Hopefully, you did the research on the PSU to see if it could supply all those power hungry upgrades and all the other peripheral devices, including your motherboard all during a simultaneous peak demand. Nowadays, when I build or upgrade a beefy gaming rig my choices for a PSU start at 1000w and up.

Best way to eliminate or prove the battery backup is at fault is to run the pc w/o battery backup and plug it (pc) directly into the outlet the battery backup is using, if pc fails then move pc to another outlet location that doesn't share the same electrical line and breaker.

Again, check your bios and its fan regulation screen(s) make sure your fans and case heat sensors aren't set to the minimum temperature selection for them to power off your system, especially, if your airflow inside your case is restricted by wire clutter.

If you have a spare or if you replaced the video card for a new one and still have it handy put it back into the system and see if you can duplicate the problem and see if its video card related, or, make sure the power cords that are hooked up to the video card dedicated to the video card and not sharing it with anything else, also, make sure the video card fan is powered when the pc is on

Also, just because the parts are brand spanking new doesnt meant they are beyond reproach when troubleshooting the problem. I've had new stuff arrive at my door step DOA from time to time, too.

[BigRowdy]

Originally posted by Ch53dVet:

Trust me, when, I say, that after many years of experience troubleshooting PC problems that the #1 reason for a computer to suddenly turn itself completely off is "HEAT". Take off the side panel to your computer case and place a good sized floor fan to blow over your computers guts (without being hooked up to the battery backup) and see if you can get the unit to shut down, if it doesn't you have a heat problem for sure.

Things to look for when a pc shuts itself completely off due to heat.
1) CPU overheating
2) Fans, Fans, Fans, anything with a fan on top of it needs to be checked, don't forget to check to see if the fans inside your PSU are working, usually, they come with two, one in the front, one in the back, the cheaper units sometimes have just one fan on top. Hopefully, you did the research on the PSU to see if it could supply all those power hungry upgrades and all the other peripheral devices, including your motherboard all during a simultaneous peak demand. Nowadays, when I build or upgrade a beefy gaming rig my choices for a PSU start at 1000w and up.

Best way to eliminate or prove the battery backup is at fault is to run the pc w/o battery backup and plug it (pc) directly into the outlet the battery backup is using, if pc fails then move pc to another outlet location that doesn't share the same electrical line and breaker.

Again, check your bios and its fan regulation screen(s) make sure your fans and case heat sensors aren't set to the minimum temperature selection for them to power off your system, especially, if your airflow inside your case is restricted by wire clutter.

If you have a spare or if you replaced the video card for a new one and still have it handy put it back into the system and see if you can duplicate the problem and see if its video card related, or, make sure the power cords that are hooked up to the video card dedicated to the video card and not sharing it with anything else, also, make sure the video card fan is powered when the pc is on

Also, just because the parts are brand spanking new doesnt meant they are beyond reproach when troubleshooting the problem. I've had new stuff arrive at my door step DOA from time to time, too.

^^^^ I do this anyway. &days and xcom2 heat up my rig. But have4 had 0 problems with a box fan pointed at inner stuff.

[Smoke]

+1 to a heat problem

When I built my system last year I overlooked some stuff which didnt have my CPU cooler working properly and had this exact same thing happen.

You can also try using HW Monitor to log data which will show you if heat is indeed your culprit.

Best of luck in getting it sorted. Be sure to let us know if you manage to resolve the issue.

[Huperspace]

have you updated the Bios for the Intel Meltdown and Spectre ? then the restarts are normal as intel hasn't fixed it yet.

What is the BSOD code / windows event viewer code?
and the DxDiag to be have all info needed

[YamaKami]

Many suggested heat. If it was heat there would be a BSOD. It is shuts off without any BSOD. There is either a loose connector a faulty PSU or a lack of wattage available under load.

Being a new build I am thinking one of the former 2 options is most likely.

Originally posted by Huperspace:

What is the BSOD code / windows event viewer code? and the DxDiag to be have all info needed

^that's pretty key we sure could use some eyes on it...

[zz]

Modern CPUs have heat throttling function that often prevents a shutdown but that may not handle all cases. The chipset and vrm could also become too hot but OP indicates a fan blowing on it.

Motherboards, especially those from the usual suspects may have additional functions that may detect voltage, surge or heat issues and send the MB to shutdown.

Some MBs have functions that monitor fan speeds and have trip points...

[zz]

An old review of the cooler inticates that it is capable of cooling a 95W TDP CPU. If fact it is in a group below the best air coolers. For the price, it is a good deal. If the cpu is not overclocked and the install/thermal interface is good, then I suspect that it wont be an issue, especially if a thermal monitor shows no problems.

[I'm Really Bad]

Update, thanks to all your help and some other online advice I found out that my BIOS has defaulted to shut off when my GPU or CPU reach 65 degrees celsius. Which means I can play games like PUBG and ARMA and get 60 degrees celsius maximum so it won't ever shut off. But when I play games that are slightly less optimized I have to have a portable desk fan blowing into the side of the case to keep it from shutting down until I can get watercooling. Simple solutions for simple problems. Thanks to all that helped!

[Smoke]

You should be able to go in to your BIOS and change that.

[Huperspace]

Originally posted by Finkledbody:

Who the F@CK buys a i7-8700k and cools it with a hyper 212 evo?

they are right a 8700k need not 95W TDP it will need around 140W if the bios of the mainboard alloud it (a german magazine PCGH.de tested it). if you want to limit it you have to manuel set the long term power in bios. Or better buy a better CPU Cooler at least a 200W cooler (which is the meantioned nocuta NH D15)
And fix your 65*C shutdown it should be 80 or 85*C for a CPU but often set to 100*C