Computer shuts down randomly

[JupiteL]

So my computer have been acting really weird lately, it shuts down without warning when I'm playing video game and it wasn't like that at all before. Before shutting down it always freeze a bit, input devices stops working and computer turn completely off. This might be because I just installed a second monitor so the GPU draw more power, I'm not sure about that. Other source in my guess is because the PSU is failing, but playing graphical intense games is fine. Getting kind of worried it might affect other part.

 

Specs:

Fx 8150

Gigabyte 970A UD3

Gigabyte r9 280x

Corsair G600

 

PS: also temperature is fine, nothing too extreme.

[W-L]

So my computer have been acting really weird lately, it shuts down without warning when I'm playing video game and it wasn't like that at all before. Before shutting down it always freeze a bit, input devices stops working and computer turn completely off. This might be because I just installed a second monitor so the GPU draw more power, I'm not sure about that. Other source in my guess is because the PSU is failing, but playing graphical intense games is fine. Getting kind of worried it might affect other part.

 

System specs? 

 

Also is your GPU or CPU overheating at all since it's during a gaming load.

[blackadder]

So my computer have been acting really weird lately, it shuts down without warning when I'm playing video game and it wasn't like that at all before. Before shutting down it always freeze a bit, input devices stops working and computer turn completely off. This might be because I just installed a second monitor so the GPU draw more power, I'm not sure about that. Other source in my guess is because the PSU is failing, but playing graphical intense games is fine. Getting kind of worried it might affect other part.

Specs:

Fx 8150

Gigabyte 970A UD3

Gigabyte r9 280x

Corsair G600

all drivers and bios up to date?

Ram good? Run memtest86 or the windows ram checker.

Check hard drive or ssd for errors.

Check for Windows errors by doing this.... Open admin cmd prompt and type: sfc /scannow

Check game cache.

Could be psu or the wall outlet, try another outlet or psu if possible, psu are kinda hard to test without the right stuff.