pc crashing

[YOLOGUY]

Hey so it already happened that my pc freezed and the sound lagged so i had to turn off the psu or when gaming my screen will go off as well as the sound and the peripheral power! First when i built the pc it was the Corsair cx600's fan who stopped spinning after two weeks of use. I am realy frustrated since there is always something not working and I need to get that fixed, I have already done a complete Win 8.1 reinstall, but it didnt help. OC's etc are completely stable. i5 4690k 4,2ghz 1,075V I ran prime95 for 24 hours without any crashes and games also dont constantly use 100% cpu power and my GPU evga 970 sc is also stable (24 hours valley) with +85mh core and also +85mhz on the memory resulting in a core clock of 1476mhz in total. What do you guys think? the pc is maybe 3 months old or 4 months. 

i5 4690k 4,2ghz

evga gtx 970 sc +85mhz

gigabyte z97x gaming 3

Silverstone ST75F-GS 80+gold

crucial m550 250gb

wd blue 1tb

kingston savage 2x4gb DDR3

NZXT s340

(Peripherals:

microsoft mouse 

steelseries siberia v2

Steelseries apex

1080p acer g6 

old BenQ 1440x900)

[Bojan]

Hey so it already happened that my pc freezed and the sound lagged so i had to turn off the psu or when gaming my screen will go off as well as the sound and the peripheral power! First when i built the pc it was the Corsair cx600's fan who stopped spinning after two weeks of use. I am realy frustrated since there is always something not working and I need to get that fixed, I have already done a complete Win 8.1 reinstall, but it didnt help. OC's etc are completely stable. i5 4690k 4,2ghz 1,075V I ran prime95 for 24 hours without any crashes and games also dont constantly use 100% cpu power and my GPU evga 970 sc is also stable (24 hours valley) with +85mh core and also +85mhz on the memory resulting in a core clock of 1476mhz in total. What do you guys think? the pc is maybe 3 months old or 4 months. 

I have no idea what the problem is,it could be defective parts but i dont think so,maybe try installing new drivers....

[Fredrikmikael]

It might be because your CPU doesn't have enough Voltage.

 

I've had Aida64 run for 12hours completely stable, but the PC crashing, what i did to fix it was giving the CPU 0.010V more

[JefferyD90]

I have to suggest that you remove all overclocks. Please give us all your components and a detailed description of the problem.

[YOLOGUY]

It might be because your CPU doesn't have enough Voltage.

 

I've had Aida64 run for 12hours completely stable, but the PC crashing, what i did to fix it was giving the CPU 0.010V more

i already managed to run 1,055V before on 24h prime and it was stable...