[SOLVED] PC Shutting off

[sdaad]

Hello friends, i got some issues with my pc for a while now and i'm losing my mind because of it.
So, the deal is that my pc shuts down while gaming. In apex legends i can't even get past main menu cause it powers off. When it powers off everything is still working in the background. I can't restart it or power it off with the button, instead i have to plug it off or flip the on/off switch on my psu. At first i thought it was my cpu, cause it was overheating and as i heard it does have some issues with my mobo. I did couple of things.
Applied thermal paste, did the max power thingy on power settings for the cpu so it can use only 80% of the power. And that did the trick for about 3 days then it started again.
Then today, i choose to stress test my pc.
I tested my cpu with prime 95 for 1 hour.
Everything was at 100%, cpu temp was around 65 max but it worked perfectly normal, no issues at all.
Then i tested my GPU with furmark and it completely shut off in the first minute of the test. It powered off the same way it always does. So i thought it's the gpu but im not sure, i tested it 15 times since then and it completed the test every time. When i thought the CPU is the issues i had a plan to buy new mobo, cpu and ram, but now i can't do so cause what if cpu is not the problem?
If GPU is the problem then i can buy the gpu but not other components, since i am a gamer gpu is much more expensive..
So i need advice from you guys.

My spec is:

Mobo - GA990FX-UD3 rev (3)
CPU - FX 8320 Black edition
GPU - Gigabyte gtx 970 mini
Ram- x2 2 gig of ram, x1 4 gigs and x1 8 gigs = 16 in total
PSU - 700 watt cooler master.

Please help, thanks

 

[Gfost73]

maybe a RAM issue or PSU?.. your RAM seems odd being all different, are all your drivers up to date? maybe try taking out the odd sticks of RAM (the 4 and 8GB) and stress with the set of 2GB?

 

[sdaad]

maybe a RAM issue or PSU?.. your RAM seems odd being all different, are all your drivers up to date? maybe try taking out the odd sticks of RAM (the 4 and 8GB) and stress with the set of 2GB?

Safest bet to test if it is ram is to get into apex legends maybe? Since i can't get past the main menu without it crashing. Thanks for the answer

 

[Gfost73]

i meant try starting machine with just 1 stick of RAM and see if it crashes still, so many things can cause a PC to "crash" from power issues, bad RAM, GPU, Drivers, and so on.. so myself id start with making sure hardware was ok by limiting what i used at first, if that was ok then Id make sure all drivers were 100% up to date, Id also scan for malware, spyware, virus .. id maybe even go as far as 100% fresh install of windows.

 

[sdaad]

I tested the ram with memtest64 for 1 hour with no errors. The weird thing is that my ram is:
4 gig running on 933mhz, 2x2 gig running on 667 and 8 gig one runnin on 800.

 

[Gfost73]

according to user benchmark that GPU can only run apex legends at low settings .. so maybe its just crashing the gpu? this setup Apex Legends GTX 1060 - GTX 970 - GTX 1070 with a Skylake i7 6700k @4.7GHz frame rate test benchmark. tested at 1080p resolution. the guy was only able to play on LOW and only got 49fps average