My PC keep shutting down.

[August123]

Hi!

I put in a 2nd graphics card not long ago, and today, because it's my birthday. I got a 2nd monitor, and I plugged it in. I played flawless with 300 Fps in many games, with the 2nd monitor for other stuff.

So basicly, sometimes my PC shut down, and stay turned off, and sometimes it shut's down and turns on immediately again.

I also opened up MSI Afterburner to check the temperatures of my CPU and GPU's, and they were about 35-40 degrees.

I run windows 8

Specs:
I7 4790K 4,8Ghz
2x Zotac 780Ti SC SLI
MSI G-45 Gaming Motherboard
CM 1000W Gold Certified, Tier 1 PSU.
16GB DDR3 1600Mhz RAM

Would need help with this one.

August

 

[Gumption]

You checked the temperature while playing?

Also, did you install the 2nd monitor's drivers?

My immediate gut reaction would be that one or more of the cards are overheating and cutting out, thus causing the shut down, but it depends.

It could also be your psu, I see that it should have enough juice, but it doesn't mean that it's not the problem. Use HWmonitor and keep and eye on the power usage for both cards. Consumption should be around their tdp.

In either case, there is some simple troubleshooting you can try and see what helps:

Reduce the graphics settings for whichever game you're playing.
Disable sli and run a game off of one card on both monitors. Preferably the new one first and obviously at reduced settings.
Remove one of the monitors out of the equation and run in sli on just one.
Run benchmark stress tests on both cards and see if either craps out.
Run the games in windowed mode and see if the shutdown happens again. You may even see an error message as it happens.

Try those and see what sticks is my advice.

 

[August123]

You checked the temperature while playing?

Also, did you install the 2nd monitor's drivers?

My immediate gut reaction would be that one or more of the cards are overheating and cutting out, thus causing the shut down, but it depends.

It could also be your psu, I see that it should have enough juice, but it doesn't mean that it's not the problem. Use HWmonitor and keep and eye on the power usage for both cards. Consumption should be around their tdp.

In either case, there is some simple troubleshooting you can try and see what helps:

Reduce the graphics settings for whichever game you're playing.
Disable sli and run a game off of one card on both monitors. Preferably the new one first and obviously at reduced settings.
Remove one of the monitors out of the equation and run in sli on just one.
Run benchmark stress tests on both cards and see if either craps out.
Run the games in windowed mode and see if the shutdown happens again. You may even see an error message as it happens.

Try those and see what sticks is my advice.

Ehh, I checked the GPU's while running WoW on ultra with 16x AA and all that shit on max.

They were running from about 60-70 degrees in the start, this was when I had the max FPS cap to 200. And they kept the 160-200 FPS at all times, depending at the location in the game.

They both used about 40-60% of the GPU power, and when I reduced my FPS cap to around 120-100, both the GPU temperatures dropped to about 55-45 degrees, with about 35-45% of the GPU power usage.

My CPU also ran a steady 40-50 degrees at all times. With about 40% of it's power usage.