NVIDIA GTX 970 SLI possible problem

[pia]

Hi everyone!
I'm a newbie, so hope you can help me. I test a GPU NVIDIA GTX 970 SLI with Unigine Valley and I got score 2397.
But it should be higher, right?
This are PC's specs:
CPU Intel Core i7 5820K 3.30GHz Clock Speed 1199.29 MHz
Mainboard X99-DELUXE
RAM DDR4 16GB
NVIDIA GeForce GTX 970 SLI

Is there something wrong?

 

[XSI]

personally i dontknow how much should it be, firstly i see you are on extreme settings. second thing is did you have latest nvidia drivers?

nice system btw

 

[erocker]

You should be getting double that score. Sli doesn't seem to be working. Check GPU usage under load with GPU-Z or a similar program.

 

[rtwjunkie]

@XSI is right. We can't compare it to anything if you are on different settings than the TPU thread everyone posts their results in. http://www.techpowerup.com/forums/threads/unigine-valley-benchmark-scores.183712/

You are running double the AA and Extreme HD.

Run your system at these settings:

Tessellation should be set to maximum...
Preset: Custom
API: DX11
Quality: Ultra
Stereo 3d: Disabled
Monitors: Single
Anti Aliazing: x4
Full screen: yes
Resolution: 1920x1080

 

[XSI]

checked some benches in Unigine thread. it should be about 5000 mark. and you could try oc your cpu to something like 4ghz

 

[pia]

Thanks for the replies!
I've just noticed i don't have sli enabled
On the nvidia panel doesn't appear the enable sli option, i've read that i have to enable on the bios, but the option doesn't appear. So i'll check if the gpu are in the correct slot

 

[ruff0r]

Thanks for the replies!
I've just noticed i don't have sli enabled
On the nvidia panel doesn't appear the enable sli option, i've read that i have to enable on the bios, but the option doesn't appear. So i'll check if the gpu are in the correct slot

Post your Pc components, Your mainboard cpu and so on.

It could be that your Mainboard is not supporting SLI, Also are you using an SLI Bridge.

 

[rtwjunkie]

Thanks for the replies!
I've just noticed i don't have sli enabled
On the nvidia panel doesn't appear the enable sli option, i've read that i have to enable on the bios, but the option doesn't appear. So i'll check if the gpu are in the correct slot

If you've got the bridge installed, then the option definately should appear in the Nvidia control panel. At least now I understand the low score...you were running Extreme HD, 8xAA, and no SLI. Otherwise even a single 970 should have scored higher than my 780 score running at the TPU Valley settings.

 

[pia]

Hi!
This are my PC's specs:
CPU Intel Core i7 5820K 3.30GHz Clock Speed 1199.29 MHz
Mainboard ASUS X99-DELUXE
RAM DDR4 16GB
2 NVIDIA GeForce GTX 970

I read ASUS X99-deluxe supports SLI, so i don't know why there's no SLI option on NVIDIA panel
And yes, there's an sli bridge ( attached image)

 

[ruff0r]

Hi!
This are my PC's specs:
CPU Intel Core i7 5820K 3.30GHz Clock Speed 1199.29 MHz
Mainboard ASUS X99-DELUXE
RAM DDR4 16GB
2 NVIDIA GeForce GTX 970

I read ASUS X99-deluxe supports SLI, so i don't know why there's no SLI option on NVIDIA panel
And yes, there's an sli bridge ( attached image)

The Asus x99-Delux Supports Sli so no worries and so far everything looks alright.

Also make sure that your second card is in This marked Second slot.

 

[neatfeatguy]

If you have the cards in the correct locations on the motherboard as pointed out by ruff0r, then you can try this stuff out and go from there.

Check if both cards are being detected in Device Manager under Display adapters - you should see something similar to this:

Usually if a card isn't working in SLI/Crossfire that means the card is not plugged in correctly (not all the way in the PCI-E slot and/or power connectors are loose/not plugged in, the card is dead or the PCI-E slot is not working. So....

Here are a few things you can try if only 1 card is showing up under the device manager:

1) The second card is not seated correctly in the PCI-E slot. Power off the computer and re-seat the card and ensure it's in all the way.
2) Ensure the power is plugged in all the way on the second card.
3) If steps 1 and 2 don't fix the problem, test the cards 1 at a time in the first PCI-E slot to ensure they both work on their own.
4) If both cards work in step 3, try both cards 1 at a time in the second PCI-E slot to see if the computer is detecting the cards.

 

[sneekypeet]

Cannot see from that image, is the LED by the power clip illuminated on the lower card?

 

[erocker]

Couldn't the issue be the tri-sli bridge being used for dual sli?

 

[GhostRyder]

Hi everyone!
I'm a newbie, so hope you can help me. I test a GPU NVIDIA GTX 970 SLI with Unigine Valley and I got score 2397.
But it should be higher, right?
This are PC's specs:
CPU Intel Core i7 5820K 3.30GHz Clock Speed 1199.29 MHz
Mainboard X99-DELUXE
RAM DDR4 16GB
NVIDIA GeForce GTX 970 SLI

Is there something wrong?

Couldn't the issue be the tri-sli bridge being used for dual sli?

I think @erocker is right, the Tri-SLI bridge is differently setup for 3 cards instead of two:

That is how to do it with individual cables so I believe your not getting proper communication. You need to just try it was a standard single SLI cable and see what happens then we can go from there.

 

[neatfeatguy]

Couldn't the issue be the tri-sli bridge being used for dual sli?

I think @erocker is right, the Tri-SLI bridge is differently setup for 3 cards instead of two:

That is how to do it with individual cables so I believe your not getting proper communication. You need to just try it was a standard single SLI cable and see what happens then we can go from there.

I didn't have issues using a tri-sli bridge between just two cards on my old ASRock motherboard. It's something worth looking into. If your MB has a dual-SLI bridge, use that to see if it helps, but I don't think is should matter.

 

[newtekie1]

The x99-Deluxe only comes with what ASUS calls a "2-way/3-way SLI Bridge". AFAIK, a 3-way SLI bridge will work just fine with only 2-way, as a 3-way bridge provide a link between each card.

The first thing I'd do is fire up GPU-Z and make sure both cards are being recognized properly.

 

[GhostRyder]

I didn't have issues using a tri-sli bridge between just two cards on my old ASRock motherboard. It's something worth looking into. If your MB has a dual-SLI bridge, use that to see if it helps, but I don't think is should matter.

The x99-Deluxe only comes with what ASUS calls a "2-way/3-way SLI Bridge". AFAIK, a 3-way SLI bridge will work just fine with only 2-way, as a 3-way bridge provide a link between each card.

The first thing I'd do is fire up GPU-Z and make sure both cards are being recognized properly.

Well also I notice it looks like its upside down when its hooked up which changes the layout of the connections. So maybe its just because its upside down...?

I could be wrong, it was just a guess.

 

[pia]

Hi,

in Device Manager appear the two NVIDIA GeForce GTX 970

Cannot see from that image, is the LED by the power clip illuminated on the lower card?

the led on the lower card is illuminated

GPU-z recognize two cards, attache two image of GPU-Z

Now, I'm gonna check if the cards are in the slots that mention ruff0r
Thanks a lot for the help!

 

[newtekie1]

Well also I notice it looks like its upside down when its hooked up which changes the layout of the connections. So maybe its just because its upside down...?

I could be wrong, it was just a guess.

Could be, but usually if there is an issue with the SLI bridge that is preventing SLI from being enabled the driver is smart enough to let you know. Like I've forgot to put on the SLI bridge before and when you start the computer there is a little pop-up down by the system tray that says something like "you have an SLI capable system, please install the SLI bridge properly to enable the SLI option". Yeah...I've done that more than once when working on my systems.

 

[erocker]

The x99-Deluxe only comes with what ASUS calls a "2-way/3-way SLI Bridge". AFAIK, a 3-way SLI bridge will work just fine with only 2-way, as a 3-way bridge provide a link between each card.

The first thing I'd do is fire up GPU-Z and make sure both cards are being recognized properly.

Just making sure. Wouldn't the bridge have to be connected using both ends and not the middle connector?

 

[newtekie1]

Just making sure. Wouldn't the bridge have to be connected using both ends and not the middle connector?

I don't believe so, this is the link pattern of a 3-way SLI bridge AFAIK:

So the top to the middle or the bottom to the middle would be identical to a 2-way bridge.

 

[newtekie1]

Hi,

in Device Manager appear the two NVIDIA GeForce GTX 970


the led on the lower card is illuminated

GPU-z recognize two cards, attache two image of GPU-Z

Now, I'm gonna check if the cards are in the slots that mention ruff0r
Thanks a lot for the help!

Ok, so the problem is the second card is running in PCI-E x1 mode instead of PCI-E x8 like it should be. It actually looks to me like you have the second card in the wrong slot. The slot that ruff0r circled is actually incorrect as well. If you were running a 40-Lane CPU, ruff0r would be correct. However, because your 5820K is a 28-Lane CPU, you actually want to use PCI-E x16_1 and PCI-E x16_4. This is the chart to figure that out from ASUS:

These are the slots you want to use:

Sorry for the double post, but I wanted to bump the thread so the OP saw there was a new reply.

 

[pia]

Hi, i had the card on PCIEX16_3 so i changed it to the PCIEX16_4, but now just only appear one card in device manager, and GPU-Z.
On NVIDIA panel does'nt appear the SLI option.
The led's of two card are lluminated.

It should be in PCIEX16_4 , 'cause when it was on PCIEX16_3 on the bios appear the message that it should be changed (photo attached), so i don't know what's the problem

On the mainboard the SLI switch is on X2.
Attache some photos hoping that helps to resolve my problem

Sorryfor my terrible english

 

[BiggieShady]

Tessellation should be set to maximum...
Preset: Custom
API: DX11
Quality: Ultra
Stereo 3d: Disabled
Monitors: Single
Anti Aliasing: x8
Full screen: yes
Resolution: 1920x1080

ftfy


edit: at those settings single GTX 970 should give 1300-1400, around 1500 overclocked ... SLI scaling at Heaven is more than 1.8 so SLI should give 2500-2700 stock
edit2: realized this is about Valley

 

[rtwjunkie]

ftfy


edit: at those settings single GTX 970 should give 1300-1400, around 1500 overclocked ... SLI scaling at Heaven is around 1.8 so SLI should give 2500-2700

The x4 AA is the standard for the Valley Benchmark thread. Even at x8 he is running he should get close to my 780 score, which is officially 3142 on the front page there.