why does my pc turn off unexpectadly

[markony.boskovic]

So this started about 4 weeks ago, it only seems to happen if i am playing a game and speaking to somneone on discord or skype, but it doesnt happen anymore after the first shutdown only once which is weird. And i know its not a PSU problem becouse just one week after this problem strated i bought a new one. And i forgot to mention that theres no like shuting down screen or a blue screen of death at all, the screen just turns black and the pc resets.

specs:

cpu: AMD FX-8320
gpu: Nvidia gtx 1060
psu: Chieftec ECO 700w
RAM: 8gb Kingston ddr3 1666mhz

 

[hang-the-9]

Could be a video card issue, overheating, RAM. Need to list full system specs including power supply brand and model.

 

[Rexer]

Are they internet games like on Steam? Try this. Go into your game and set the game to 'default' settings or find the 'reset game' button. Make sure you write down your game settings as this will erase all your game settings.
Steam like to remember things about you and games. Your game settings are reinstalled if you uninstall and reinstall games. Sometimes the game will remember a 'crash' and reprogram it like a game setting.. . yeah, back into the game. It's weird but it a good thing since Steam looks after your game purchases, settings and preferences, reminds you what's on sale and announces upcoming games you like. Just every once in a while it remembers the wrong thing.

Oh yes, it could be your PSU.
Chieftech isn't a brand I've heard of till just now. Excluding your PSU, it's other family members are on a Lemon list.

http://www.johnnylucky.org/power-supplies/psu-lemon-list.html

And the same brand under a different name (Powmax) has it 'avoid immediately' a few years back on Tom's Hardware. Just letting you know.

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Here are a few more 'good' PSU listing from around the neighborhood.

http://www.johnnylucky.org/power-supplies/psu-recommendations.html

https://linustechtips.com/main/topic/631048-psu-tier-list-updated/

I fried up 3 computers using bad PSUs. Ultra, cheapest Antec 500w and the first year Corsair RM750 by Chicony.
If it's doing fine, use it till you can afford a new one but I'd seriously consider replacing it.
Hope this helps.