Recently added SLI.

[Aaron Chavez]

Hello, so yesterday, I bought another evga 970 ftw for a sli build. Now when I went to test this beast on one of the benchmarks (Firestrike) i only got a score of 3.2k. What gives? I scored a 5.5k with just one before. Plus im not seeing much of a difference in game quality for the $380 bucks i just spent. I may be returning this card, if i don't see much improvement.

 

[werberman]

Are you sure you've set them actually function in SLI? You have to go into the NVidia control panel and set it yourself.

 

[Aaron Chavez]

Are you sure you've set them actually function in SLI? You have to go into the NVidia control panel and set it yourself.

Does this look right?

 

[werberman]

Yes, it does. One more thing, though - click the "Manage 3D Settings" link in the left menu; under Global Settings, scroll down until you find the "SLI performance mode" entry. Change the settings from “Single GPU” to SLI

 

[Aaron Chavez]

I found SLI Rendering Mode, is that it? Im not seeing Performance mode

 

[werberman]

Sounds like it - sorry, doing this from my AMD machine :S

 

[Aaron Chavez]

No problem.. let me try run this bench again.. brb

 

[Aaron Chavez]

Ya no changes in the benchmark, I think something may be wrong here.. Im getting the same score as 1 card

 

[werberman]

-.- this is one of those instances where I really wish I could just remote in to people's computers and poke. Did you end up changing the setting under the 3D settings tab?

 

[Aaron Chavez]

I did, it was all set up. When i tested in Heaven bench, i actually got lower fps then running the recommended settings that nvidia had for the rendering part.

 

[werberman]

Go back into the global settings and swap them out for "Alternate frame rendering 2" - this will force SLI across the board. Also, be sure to hit apply (I always seem to forget to do that at least once XD)

 

[Aaron Chavez]

Its now back down to 3.7k score. It gets worse when it does that.

 

[werberman]

Download the MSI Afterburner - it will give you the tools to monitor the cards power usage, clock speed, etc... http://event.msi.com/vga/afterburner/download.htm

 

[Aaron Chavez]

i have precision x

 

[jitpublisher]

Just tossing some ideas out, check BIOS to make sure PCIe slots are set to be used in SLI configuration, SLI bridge is securely in place.

 

[Aaron Chavez]

Not sure i can set sli on or off in my bios. id did not see a button for that, but i do see both cards being read in bios at x8 native. everything else is fine

 

[werberman]

Shouldn't have to change anything in the bios - when you use precision x, is there any activity on the second card? Try setting the fan speeds individually to confirm you have control of both.

 

[Aaron Chavez]

yes both fans are controlable

 

[werberman]

Run a game in windowed mode and tab into precision x - what's the power usage of each GPU?

 

[Ablangcj]

side note, what type of motherboard do you have?

 

[Aaron Chavez]

50-68 %

 

[Aaron Chavez]

ausu formula maximum IV

 

[Aaron Chavez]

VI*

 

[Ablangcj]

Ok cool, you may have a clear cmos button on the motherboard. Press that. It basically resets everything and does a self check. Try that and do a benchmark

 

[werberman]

50-68 %

Then it IS using both.... what resolution is your monitor?