980 sli not working?

[Zer0-101]

I am currently running dual evga gtx 980s in sli. However I noticed low performance. I ran the metro 2033 benchmark and got similar scores with sli disabled as enabled. does anyone have any ideas on how to fix this?

[NoRomanBatmansAllowed]

2 minutes ago, Zer0-101 said:

I am currently running dual evga gtx 980s in sli. However I noticed low performance. I ran the metro 2033 benchmark and got similar scores with sli disabled as enabled. does anyone have any ideas on how to fix this?

Some games just suck at SLI.  Other like Metro 2033 are really good at seeming like they suck at SLI.

 

http://www.tomshardware.com/answers/id-2369063/bad-metro-2033-redux-performance.html

[Mick Naughty]

Is the second card trying when its enabled? Are you monitoring everything during the benchmark?

[Zer0-101]

20 hours ago, Mick Naughty said:

Is the second card trying when its enabled? Are you monitoring everything during the benchmark?

I am monitoring it and it is not hitting 100% usage but it gets up to the mid 80%

[Mick Naughty]

8 hours ago, Zer0-101 said:

I am monitoring it and it is not hitting 100% usage but it gets up to the mid 80%

Ok, run heaven or valley with the max settIngs. That way we can see if this is nvidia problem or just the game. Should hit 99% in those.  

[jjohnthedon1]

Can we get a full breakdown of your specs pls and monitor and res

 

posabilities - mobo not compatible

 

cpu bottle neck

 

game has poor scaling

 

your using old drivers 

 

haven't got sli bridge in right 

 

running cards in wrong slots on mobo 

 

 

[Zer0-101]

12 hours ago, jjohnthedon1 said:

Can we get a full breakdown of your specs pls and monitor and res

 

posabilities - mobo not compatible

 

cpu bottle neck

 

game has poor scaling

 

your using old drivers 

 

haven't got sli bridge in right 

 

running cards in wrong slots on mobo 

 

 

i7 4790k with asus z-97-ar with the graphics cards in the top 2 16x slots with both slots running in 8x mode. I am running the latest drivers geforce experience provided. I believe I have the sli bridge in correctly as I looked up photos and they all have it in the same way. Since they are in 2 way I believe the bridge can go on either set of fingers, but i currently have them both on the first 2. My mobo I am almost sure is compatible as the sli bridge came in the mobo box.

[Zer0-101]

13 hours ago, Mick Naughty said:

Ok, run heaven or valley with the max settIngs. That way we can see if this is nvidia problem or just the game. Should hit 99% in those.  

I will do that

[Zer0-101]

15 hours ago, Mick Naughty said:

Ok, run heaven or valley with the max settIngs. That way we can see if this is nvidia problem or just the game. Should hit 99% in those.  

In heaven it hits 99 on one card and between 90-95 on the other. Both are well within thermal limits and running at the same clock speed as it seems, and the cpu usage only hits about 25% and maintains 4.4 GHZ

[App4that]

What temp is the top card running at? Does the clock speed drop when in SLI verses only one card?

 

Also try connecting the monitor to the bottom card. 

[Zer0-101]

3 minutes ago, App4that said:

What temp is the top card running at? Does the clock speed drop when in SLI verses only one card?

 

Also try connecting the monitor to the bottom card. 

the top card runs at about 63C I will try it with one card and with the monitor in the second card

[Zer0-101]

22 minutes ago, App4that said:

What temp is the top card running at? Does the clock speed drop when in SLI verses only one card?

 

Also try connecting the monitor to the bottom card. 

It runs at about the same clock speed after gpu boost with only the one card. I tested it with the second card as well with the same result.

[Mick Naughty]

Well the CPU isn't gonna do much in those but the cards are working. So need to check CPU usage in the metro benchmark. May just be poor optimization. 

[hogfather]

swap the cards around and see how they go

[Zer0-101]

20 hours ago, hogfather said:

swap the cards around and see how they go

 

20 hours ago, Mick Naughty said:

Well the CPU isn't gonna do much in those but the cards are working. So need to check CPU usage in the metro benchmark. May just be poor optimization. 

switched the cards and nothing changed. Its most likely just poor optimization because the cpu isn't getting even close to 100% usage in the metro benchmark. Thanks fo rthe help though.