Is to reduce the parts count till it stays powered up. You can't sniff out if it's the motherboard without swapping out the motherboard. That really irks folk that are not in a shop or repair depot but that's how it's done.
There are reasons for early death or problems like a too hot box or overclocking. But to check if the motherboard is the issue we do one thing before we pop in a new board. We get out the Volt meter and take a measure of the PSU rails. This is your most basic tech skill and can not be dismissed.
So, some background. Weeks ago, my pc shut itself off and wouldn’t turn back on. After running through a long series of fixes :checking the psu, both old and a new psu, reserving cmos via jumper and battery, and removing things to determine the problem, I discovered that my GPU stopped my PC from turning on. I could use the onboard graphics and that held me over. I contacted EVGA, they replaced it, PC worked fine afterwards. Now I’m experiencing the same issue all over again, only this time around with the GPU removed I still cannot use the onboard graphics. The PC powers on, fans run and components flash for roughly 3 minutes and then it will shut off and repeat. I’m at a loss now because I tried all of the above actions and still nothing worked. To reiterate, this has happened with 2 PSUs and 2 GPUs in under a month. I fear my motherboard is failing, but id appreciate any other options to try and rule those out first. I’ve searched a ton on other forums and would appreciate any help, thank you in advance.
Sys specs:
Asrock Z97 Pro-4 motherboard
8GB ballistix sport RAM
EVGA GTX 980 TI
I5-4690K
Tx750M PSU
Win 10 Home

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