Hi all, I have a very hard to isolate problem with my PC so i'll explain how it all came about last night to hopefully pin point the problem 
Randomly last night the breaker for upstairs went off in the electrical box while my PC was on, I turn it back on but the PC is stuck in a boot loop, I hit the reset CMOS button and the PC powers up fine so i'm thinking everythings fine, about 10 minutes later the PC shuts itself off and starts itself again, no bios error, nothing it just reboots and carries on absolutely fine for hours on end so I think it's just a random one it can happen (from a fresh PC unplugged from the wall, PSU switched off etc cold boot)
so over night I turn the PC off again, completely turn off unplug from the wall incase the breaker goes again (we never did isolate what caused it, nothing is damaged or broken at all) I cold boot again this morning and the same thing happens within 10 mins, PC reboots itself and again for hours on end it's been absolutely fine, games, stress testing your name it, all working just fine. I disabled all overclocks and tried with SLI disabled and SLI enabled and nothing changes it, its working just fine
Now my question is since I never completely cold boot my PC is that just a symptom of the PSU having a problem ive never identified before? or some other component in that from a complete cold boot it hits an error and once its up and running its fine? or is it possible my PSU developed a fault that caused the breaker to flip? (I didnt think a PSU that still appears to work just fine is capable of that) is the fact I had to reset the CMOS to get the PC to boot again indicative of anything? like I said everything is plodding along just fine so it's hard to think there is an issue with my PC itself so any help or advice would be greatly appreciated please
My specs are:
I7 4790k
980Ti Sli
Z79X-SOC motherboard
1300 EVGA G2 PSU
Randomly last night the breaker for upstairs went off in the electrical box while my PC was on, I turn it back on but the PC is stuck in a boot loop, I hit the reset CMOS button and the PC powers up fine so i'm thinking everythings fine, about 10 minutes later the PC shuts itself off and starts itself again, no bios error, nothing it just reboots and carries on absolutely fine for hours on end so I think it's just a random one it can happen (from a fresh PC unplugged from the wall, PSU switched off etc cold boot)
so over night I turn the PC off again, completely turn off unplug from the wall incase the breaker goes again (we never did isolate what caused it, nothing is damaged or broken at all) I cold boot again this morning and the same thing happens within 10 mins, PC reboots itself and again for hours on end it's been absolutely fine, games, stress testing your name it, all working just fine. I disabled all overclocks and tried with SLI disabled and SLI enabled and nothing changes it, its working just fine
Now my question is since I never completely cold boot my PC is that just a symptom of the PSU having a problem ive never identified before? or some other component in that from a complete cold boot it hits an error and once its up and running its fine? or is it possible my PSU developed a fault that caused the breaker to flip? (I didnt think a PSU that still appears to work just fine is capable of that) is the fact I had to reset the CMOS to get the PC to boot again indicative of anything? like I said everything is plodding along just fine so it's hard to think there is an issue with my PC itself so any help or advice would be greatly appreciated please
My specs are:
I7 4790k
980Ti Sli
Z79X-SOC motherboard
1300 EVGA G2 PSU