Question PC shuts down randomly even when I'm not gaming ?

[Greg Gregorich]

hi all.i have situation where my pc randomly restarts even when the PC idling.
My case fans is a mesh .its supposed get throttle first but now its just shuts down and restarts what i did used extension for my gpu to move outside the case and i put fan under it installed liquid cooled by h100i elite capellix xt .once i cant even make Battlefield 4 to launch its shuts pc down after i click find a server.then i tried reset my pc and now its sometimes background gets black .no background picture lol.its just too much.

PC Specs
Motherboard: ROG MAXIMUS X HERO
CPU: i7-8700k
GPU: GEFORCE RTX 2080 TI
RAM: G.SKILL TRIDENTZ @ 2133 MHz
PSU: EVGA 850 T2
Storage 1: 500GB pci 3.0 NVMe SSD dont remember brand .
Storage 2: CRUCIAL 2TB M.2 NVMe SSD in enclosure connected via usb type C with COD MW3 installed.
OS: Windows 10 Pro

 

[Misgar]

what i did used extension for my gpu to move outside the case

As an electronics design engineer, I'm always wary of extending a high speed data bus with a long extension cable. Inevitably it's going to add capacitance, inductance, resistance and crosstalk, which affect the shape of the digital signals and impair performance.

GPU manufacturers design their cards to interface directly with the motherboard using the shortest signal paths possible. When you add 4" (10cm) of extension cable, you've significantly altered the bus characteristics. I doubt you will find any GPU manufacturer prepared to guarantee their cards will work on the end of a third-party extension cable.

I wouldn't be surprised if your problems disappear when you plug the GPU back into the motherboard without the extension cable. It'll mess up the appearance of your computer, but might fix the problem.

its supposed get throttle first but now its just shuts down and restarts

The CPU might throttle if you hit with really heavy loads, or run a stress test such as Prime95, but most of the time (and with adequate) cooling it shouldn't throttle very often. On it's own, a CPU which has reached throttle temperature (e.g. 90/95/100C) should carry on running and not crash. Modern CPUs are designed to run hot and continue working even when throttling.

I don't think your crashes have anything to do with CPU throttling. Instead, try removing the GPU extension.