Horrible SLI problems.

[KingCoil]

I am having horrible sli performance compared to only having one card. I have (2) EVGA GTX960 ACX+2.0 SSC 4GB. With only one card, I can run Grand Theft Auto V at mostly maxed out settings around 40-50 FPS. However, when I install the second card, I never go above 20 FPS. Wtf do I do?

Specs: Asus z87-a (NFC express) motherboard

Intel i5-4670k  @3.4GHz

Corsair Vengeance 8GB 1600MHz RAM.

(2) EVGA GTX960 ACX+2.0 4GB

ThermalTake 750w 80+Gold PSU. (Semi modular)

I am currently at school so I can't troubleshoot for about 7 hours.

 

[LiamApex]

is your pc set to power saving mode, i had this problem.

[Aytex]

2 minutes ago, KingCoil said:

I am having horrible sli performance compared to only having one card. I have (2) EVGA GTX960 ACX+2.0 SSC 4GB. With only one card, I can run Grand Theft Auto V at mostly maxed out settings around 40-50 FPS. However, when I install the second card, I never go above 20 FPS. Wtf do I do?

Specs: Asus z87-a (NFC express) motherboard

Intel i5-4670k  @3.4GHz

Corsair Vengeance 8GB 1600MHz RAM.

(2) EVGA GTX960 ACX+2.0 4GB

ThermalTake 750w 80+Gold PSU. (Semi modular)

I am currently at school so I can't troubleshoot for about 7 hours.

 

Try returning them and get a 980?

if you don't want to do that then check your temperatures, is anything overclocked?

[KingCoil]

2 minutes ago, LiamApex said:

is your pc set to power saving mode, i had this problem.

I will check when I get home. How do I do that?

[KingCoil]

3 minutes ago, Aytex said:

Try returning them and get a 980?

if you don't want to do that then check your temperatures, is anything overclocked?

Temperatures were fine. No component is over clocked.

[Husky]

6 minutes ago, KingCoil said:

I will check when I get home. How do I do that?

go to your power settings in your control panel. click high performance.

[KingCoil]

1 minute ago, Husky said:

go to your power settings in your control panel. click high performance.

Thank you.^^

[LiamApex]

20 minutes ago, KingCoil said:

I will check when I get home. How do I do that?

just search for power in controll pannel

[KingCoil]

18 minutes ago, LiamApex said:

just search for power in controll pannel

Thank you. When I get home I will change it and see what happens. 

[KingCoil]

That did not help.

[Curufinwe_wins]

1 hour ago, KingCoil said:

That did not help.

Download msi afterburner and tell us your clock speeds while gaming of both gpu and the loads on the gpu and cpu. 

[KingCoil]

57 minutes ago, Curufinwe_wins said:

57 minutes ago, Curufinwe_wins said:

Download msi afterburner and tell us your clock speeds while gaming of both gpu and the loads on the gpu and cpu. 

Well I used HardwareMonitor, and my CPU was at 4207MHz on cores 1 and 3, and 4207 on cores 0 and 4. Utilization were 84%, 65%, 81%, and 75%. GPU 1 was clocked at 540MHz on graphics, and 3505MHz on memory. 

GPU 2 was clocked at the same. Utilizations on both were 98% GPU, 40% Frame buffer, 0% game engine, 69% bus interface, and 40% memory.

Tested using killing floor 2 for about 10 minutes.

[Curufinwe_wins]

2 minutes ago, KingCoil said:

 

Both GPU's crashed after enabling SLI. That is 100% safe mode. (any time you see GPU clock speed sitting at 540/595 it is 100% a crash forcing the gpu into "safe mode").

 

Try restarting the computer. If that doesn't work then you will need to reinstall drivers.

[KingCoil]

Just now, Curufinwe_wins said:

Both GPU's crashed after enabling SLI. That is 100% safe mode.

 

Try restarting the computer. If that doesn't work then you will need to reinstall drivers.

Restarted a multitude of times and rolled back to the  361.75 driver. I tried using the newest driver, but rolled back.

[Curufinwe_wins]

Just now, KingCoil said:

Restarted a multitude of times and rolled back to the  361.75 driver. I tried using the newest driver, but rolled back.

You need to get the gpu out of safe mode. The way I personally do this is to set an overclock in MSI afterburner, but then make sure the "apply settings on system reset" is unselected.

 

The next option is to unplug your computer (this may seem odd but it forces out some more settings than just restarting the computer.)

 

Either way you will know the computer is working properly if the gpu's reach their normal 1200? Mhz clock speeds.

 

[KingCoil]

1 minute ago, Curufinwe_wins said:

You need to get the gpu out of safe mode. The way I personally do this is to set an overclock in MSI afterburner, but then make sure the "apply settings on system reset" is unselected.

 

The next option is to unplug your computer (this may seem odd but it forces out some more settings than just restarting the computer.)

 

Either way you will know the computer is working properly if the gpu's reach their normal 1200? Mhz clock speeds.

 

Okay, gonna go throw a simple OC on the GPU and see what happens.

[KingCoil]

21 minutes ago, Curufinwe_wins said:

You need to get the gpu out of safe mode. The way I personally do this is to set an overclock in MSI afterburner, but then make sure the "apply settings on system reset" is unselected.

 

The next option is to unplug your computer (this may seem odd but it forces out some more settings than just restarting the computer.)

 

Either way you will know the computer is working properly if the gpu's reach their normal 1200? Mhz clock speeds. 

 

Neither of those did anything.  Core clock +100MHz, Memort MHz +20

[Curufinwe_wins]

5 minutes ago, KingCoil said:

Neither of those did anything.  Core clock +100MHz, Memort MHz +20

Unplug the graphics cards, turn on the computer, turn it off, then plug them back in?

 

Look I know exactly what the issue is, but I at this point you might have to directly contact your manufacturer about it, because everything that would fix the problem "hasn't done anything".

[KingCoil]

4 hours ago, Curufinwe_wins said:

Unplug the graphics cards, turn on the computer, turn it off, then plug them back in?

 

Look I know exactly what the issue is, but I at this point you might have to directly contact your manufacturer about it, because everything that would fix the problem "hasn't done anything".

Cards work perfectly fine by themselves. But I'll just email EVGA and see what they have to say. Thanks for trying.

[Curufinwe_wins]

1 hour ago, KingCoil said:

Cards work perfectly fine by themselves. But I'll just email EVGA and see what they have to say. Thanks for trying.

They work fine themselves because you are only entering safe mode when you activate SLI. The issue is known. The solutions have been given.

[KingCoil]

10 hours ago, Curufinwe_wins said:

They work fine themselves because you are only entering safe mode when you activate SLI. The issue is known. The solutions have been given.

The "solutions" did not change anything.