My PC reboots while playing games. PSU issue?

[molossus]

Tested with GTA V and BF4. My PC will reboot after about 15 minutes of playing a game.

Background:
When my GTX 580 (about 400 Watt) broke I used my computer for about a month with only the onboard graphics.
I then bought an used 280x (about 290 Watt) with 1000MHz.
My CPU would overheat at 90C and shut off my PC. After I bought a new cooler, temps where good, but the PC reboots after some time. That is where we are now.

Specs:
LC6600GP2 V2.3, +12V1 23A, +12V2 25A, 600Watt PSU
i5 3570k at slightly over 3.9 GHz (doesn't go over 65C and 75% in BF4)
R9 280 1000MHz (at about 50-60C and 50-70% in BF4)

Considering that my new GPU consumes less power than my old one, I can't say for sure whether it is the PSU or not.

 

[Ivan96]

I'm having same issue and if it's not heat it's probably psu that's why decided to change it and recommend you to do that also because you have lc power and everybody here says it's pretty bad psu

 

[Ivan96]

And also are you sure that your overclock is stable?

 

[molossus]

And also are you sure that your overclock is stable?

It is the stock turbo boost. I don't know how to turn it off properly.

 

[Ivan96]

And also are you sure that your overclock is stable?

It is the stock turbo boost. I don't know how to turn it off properly.

Oh,it's fine than. If your pc i shutting down while you playing games only thing it can be is temperature issue,bad psu or bad or failing hardware

 

[SetSui]

Tested with GTA V and BF4. My PC will reboot after about 15 minutes of playing a game.

Background:
When my GTX 580 (about 400 Watt) broke I used my computer for about a month with only the onboard graphics.
I then bought an used 280x (about 290 Watt) with 1000MHz.
My CPU would overheat at 90C and shut off my PC. After I bought a new cooler, temps where good, but the PC reboots after some time. That is where we are now.

Specs:
LC6600GP2 V2.3, +12V1 23A, +12V2 25A, 600Watt PSU
i5 3570k at slightly over 3.9 GHz (doesn't go over 65C and 75% in BF4)
R9 280 1000MHz (at about 50-60C and 50-70% in BF4)

Considering that my new GPU consumes less power than my old one, I can't say for sure whether it is the PSU or not.

Can you try something for me? Can you run the games again, but this time limit the framerate to 30 using msi afterburner or dxtory and run in on 1080p , If it restarts lower the resolution to 720p and dont limit the frames.

If it still restarts try 720p 30fps and if it doesn't restart when its at 720p 30fps then its most likely the PSU since the temps are good.

I had the same problem recently and it turns out it was my psu .
Best wishes!