Please help troubleshoot my SLI problem

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jimthenagual

jimthenagual

Splendid
Apr 8, 2012
4,005
16
29,365



Both of those screenshots are from the same system, the only difference between these two is two months time. No hardware changes. Trying to figure out why my performance has dropped so dramatically. I have confirmed SLI is enabled in the nvidia control panel. Both runs are using the preset Extreme HD setting. My gpu temps top at 80c, cpu at 60c. For both runs the graphics cards are at stock speeds.

I ran gpu-z and it is saying performance is being capped for two reasons
- limited by reliability voltage
- limited by operating voltage

I went and reset my bios to default, no change. My PSU is the corsair AX860. Before I go and try to send this one back, anyone have any troubleshooting ideas?
 
Solution
RussK1
No software has changed? Drivers?

I've noticed a drop too (although not 30fps like yours). But I have a lot of overhead on my system.
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Mirakledba

Mirakledba

Splendid
Aug 1, 2013
3,887
1
22,815
Jim - Maybe its one of the GPU's. Try this, remove one of the Gpus, (Bottom one first) And run it...see what you get, write it down. Replace that gpu with your other 770 you took out, run it, see what you get. Maybe one of the GPU's is weaker. Do you have old SS's of your first 770 in valley? Compare them and see maybe it got weaker, if not, could be your second one. Catch my drift? Let me know how it goes

if that doesnt work, Try to replace one of the PCIE cables, maybe one is messing up. There are a bunch of things you can try before having to purchase or fix something.
 
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RussK1

RussK1

Splendid
Apr 15, 2011
6,336
0
25,960
I don't think going from 331.65 to 334.89 would have a negative 30fps impact. Good eye though...

I think he figured it out in another thread with it being Gigabyte OC Guru (which I had issues with as well on my AMD machine with it causing bad Vdroop).

As far as nikoli707 mentioning a driver removal tool? It's not needed as nVidia's uninstaller has a "Clean Install" option. These aforementioned tools actually cause more harm than good. In fact, drivers can be uninstalled via Windows device manager.
 
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Mousemonkey

Mousemonkey

Titan
Sep 3, 2006
59,466
17
92,965

Knowing the impact that different drivers can have on something like F@H, a 30 fps difference in a benchmark app is small spuds.
 
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nikoli707

nikoli707

Splendid
Jan 4, 2012
6,008
5
29,965
awesome dude... try this....
1) Right click on your desktop to bring up the NVIDIA control panel, and click on “Manage 3D Settings.” Click the Program Settings tab, then the drop down box to choose Valley. If you don’t see it you can click the Add button for Unigine Engine, or Browse for Valley.exe which is in C>Program files (x86)>Unigine>Valley>bin. Change the following four items, then click Apply.
>Muti-display/mixed-GPU acceleration change to Single display performance mode
>Power management mode change to Prefer maximum performance
>Texture filtering – Quality change to High performance
>Vertical sync changed to off
Now click on “Adjust image settings with preview” in the control panel. Click the “Use my preference emphasizing:” button and change the slider to Performance, then click Apply. Your page should now look like this:

see how much your score changes!!!
 
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