Desktop PC shutting down randomly

[rvxspeed]

My PC is shutting down randomly & restarts automatically(upon shutdown the rgb led of motherboard & ram remain active). I have checked everything. Reseted bios. Removed Oveclocking. Fun fact is if i run OCCT or give load it doesn't shut down. But even at sitting at bios sometime it shutsdown & restart. What could be the cause of the problem. My suspect is primarily power supply. Please note that I have a delidded CPU. Could that also be the factor. Please help me out guys. Also checked all the components temperature. Everything runs very cool or close to room temperature. It mainly shut downs when I am watching a movie or watching video on youtube.
Specs:
Gigabyte Z370 Gaming 5(3 years old)
I7 8700k(3 years old) delidded over a year ago
16GBX2 Corsair Vengance RGB pro 3200 DDR4(2 years old)
EVGA RTX 2080 Hybrid XC(2 years old)
Samsung 970 EVO m.2 SSD x2(3 years old)
Western Digital 6TB Black Sata HDD(4 years old)
Corsair H110iGT(3 years old)
Corsair AX1200i(8 years old)

[rvxspeed]

Anyone help please.

[Johnston]

have you tried resetting your CMOS

 

[rvxspeed]

55 minutes ago, Johnston said:

have you tried resetting your CMOS

 

YES

[GrayTech]

Do you have additional hardware on hand? Then try replacing some of your components to narrow it down. Otherwise I would suggest reinstalling windows.

Personally I had a similar problem as well. My PC sometimes just restarted like once a month (more often then not when it was on standby). But the problem didn't appear again in the last few months. So I guess it wa software related.

In addition to that I would disable Wake On Lan in the BIOS. I already had some bad experience with it being turned on and if you aren't using it, just disable it.

[rvxspeed]

20 hours ago, GrayTech said:

Do you have additional hardware on hand? Then try replacing some of your components to narrow it down. Otherwise I would suggest reinstalling windows.

Personally I had a similar problem as well. My PC sometimes just restarted like once a month (more often then not when it was on standby). But the problem didn't appear again in the last few months. So I guess it wa software related.

In addition to that I would disable Wake On Lan in the BIOS. I already had some bad experience with it being turned on and if you aren't using it, just disable it.

It's definitely not related to OS or any software. Because sometime it happens even If i am only sitting on bios. I have found some solution in corsair forum. One of the solution was to enable all OCP in icue. So that it foces the PSU to run at multi rail mode instead single rail. They talked about something like maybe a single rail is failing that's why the pc is shutting down randomly. By enabling multi rail it shouldn't shut down because it won't just trip because of a single rail ocp engaged. More testing needed. I have also asked for an RMA as I still have 2 years left on the warranty. Let's see on the multi rail theory & hope for the best.

[Johnston]

1 minute ago, rvxspeed said:

It's definitely not related to OS or any software. Because sometime it happens even If i am only sitting on bios. I have found some solution in corsair forum. One of the solution was to enable all OCP in icue. So that it foces the PSU to run at multi rail mode instead single rail. They talked about something like maybe a single rail is failing that's why the pc is shutting down randomly. By enabling multi rail it shouldn't shut down because it won't just trip because of a single rail ocp engaged. More testing needed. I have also asked for an RMA as I still have 2 years left on the warranty. Let's see on the multi rail theory & hope for the best.

Let us know how it goes

[rvxspeed]

Yes i can confirm. After doing the above post now my PC isn't shutting down. So there's maybe a single rail pulling a lot of amp at a time that is causing the entire unit to trip OCP. Still waiting on corsair for advance replacement option. No response from them.