SLI Issues ROG STRIX X570-E Gaming Wifi II & NVME

redsdreads

redsdreads

redsdreads

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Hi

I am having issues getting my two EVGA Nvidia GeForce GTX 1080 Ti FTW3 to work in SLI on my ASUS ROG STRIX X570-E Gaming Wifi II motherboard.

My boot drive is a Crucial M.2 NVME drive in the M.2_1 slot.

The GPUs are in slots PCIEX16_1 & PCIEX16_2 and are using a hard Nvidia SLI connector. I know the SLI connector works as I used it on my last build (was working last week).

The issue I am having is that I am unable to SLI the two cards, there is no option in the Nvidia control panel. I am thinking this is because one of the GPUs is having to share PCIE channels with the NVME boot drive.

GUPz shows PCIe x16 3.0 @ x8 3.0 in the Bus interface field when 1 card is installed, the same info for card 1 when the second card is installed but with PCIe x16 3.0 @ x4 1.1 showing for the second card...

Is there some way I can continue to use the M.2 as my OS drive and get my GPUs to SLI? Is there a setting in the BIOS I can change to allow both cards to run at x16 3.0 or even x8 3.0?

Thanks in advance for any advice!



System Specification:
Mobo: ROG STRIX X570-E Gaming Wifi II (BIOS 4204)
CPU: AMD Ryzen 7 5800X
RAM: G.Skill Trident Z F4-3600C16D-16GTZR
GFX: 2x EVGA Nvidia GeForce GTX 1080 Ti FTW3
NVME/Boot Drive: Crucial 500GB M.2 NVME CT500P5PSSD8
Data Drive(s): 4x Crucial 250BG SSD Raid 10
 
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I can't find any information as to whether the mobo runs SLI....

It would be nice to know for sure...

NVCPL doesn't show any SLI options, only SLI disabled when 1 card is inserted, nothing when 2 are in...
 
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SLI only works if both cards are running at a minimum of x8 x8, so both cards need to be in pcie slots that allow x8.

Make sure the pcie slot used for second card is a physical x8 wired slot and not just a x16 slot wired at x4. If it is wired at x8 or x16 then you need to go into the motherboard bios and check how the bandwidth and pcie lanes are shared to the slots and some cases sticking anything that eats bandwidth will cause the x8 slot to drop to x4, check how the motherboard shares the pcie lanes and you may have to remove a m.2 or sata or some other shared device.
 
redsdreads said:
I can't find any information as to whether the mobo runs SLI....

It would be nice to know for sure...

NVCPL doesn't show any SLI options, only SLI disabled when 1 card is inserted, nothing when 2 are in...
Click to expand...
I’m 99.99% sure that it doesn’t run SLI.

the motherboard manufacturer needs to pay for the SLI license, unlike crossfire which runs on all motherboards that have 2 times 8X by 8X pci-e 16 slots.

SLI is an outdated tech though with many games no longer supporting it.

what do you use it for?
 
JollyJamma said:
I’m 99.99% sure that it doesn’t run SLI.

the motherboard manufacturer needs to pay for the SLI license, unlike crossfire which runs on all motherboards that have 2 times 8X by 8X pci-e 16 slots.

SLI is an outdated tech though with many games no longer supporting it.

what do you use it for?
Click to expand...

That's not true. Also reasons they don't state sli anymore is because nvidia killed sli and now it is mgpu. Any motherboard that has 8x x 8x slots can do sli as long as you have a sli/nvlink bridge that fits to the minimum slots that both do 8x or 16x. DOES NOT APPLY ANY MORE ON Z690 boards. They must have a sli key/licence.

Updated :-

Just to update on this too Asus and some other companies have been removing the sli key from the BIOS of Z690 motherboards and people have had to contact ASUS to get them to stick it back in, this will cause the SLI option to not appear in the NVIDIA drivers only but you will see both cards and able to change which card can be a dedicated PhysX if you see that and no SLI option at all in that area of the menu then could be a SLI key issue in the bios or as stated not running at 8x by 8x or a bad sli/nvlink bridge.
I don't think you are having this issue as X570 board but I would contact ASUS to confirm and the main issue it looks like you are having is the cards are not running at 8x by 8x for both cards and that will 100% not allow sli to work too. So get the board to work correctly at 8x by 8x first and then go from there.
 
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Thanks for the responses.

So, the motherboard (GPUs using an SLI card) does support SLI...

The issue I am having is that my second GPU is running at 4x 1.1 and not 8x 3.0. This is why SLI is not functioning properly.

I have removed all RAID drives and am only booting from a single M.2 NVME in slot M.2_1 and am still getting the second card not running in 8x issue....

Any advice here?

Purgatory is correct that if you have a SLI link bridge then they should work. However, I am not getting my second card to run at the minimum 8x to allow SLI to function.

I haven't got any windows power settings set to save energy.

I would be pulling my hair out if I had any!

Anyone got any ideas on how to resolve this?

I am testing using GPUz in SLI mode and it is showing both cards are capable of 16x 3.0, whereas card 1 is running at 8x 3.0 (this is fine for SLI) and card 2 is also capable of 16x 3.0 but running at 4x 1.1...
 
Email the asus support. I asked them something about my BIOS not long back and they didnt take too long to get back.
 
redsdreads said:
Thanks for the responses.

So, the motherboard (GPUs using an SLI card) does support SLI...

The issue I am having is that my second GPU is running at 4x 1.1 and not 8x 3.0. This is why SLI is not functioning properly.

I have removed all RAID drives and am only booting from a single M.2 NVME in slot M.2_1 and am still getting the second card not running in 8x issue....

Any advice here?

Purgatory is correct that if you have a SLI link bridge then they should work. However, I am not getting my second card to run at the minimum 8x to allow SLI to function.

I haven't got any windows power settings set to save energy.

I would be pulling my hair out if I had any!

Anyone got any ideas on how to resolve this?

I am testing using GPUz in SLI mode and it is showing both cards are capable of 16x 3.0, whereas card 1 is running at 8x 3.0 (this is fine for SLI) and card 2 is also capable of 16x 3.0 but running at 4x 1.1...
Click to expand...


Just to update on this too Asus and some other companies have been removing the sli key from the BIOS of Z690 motherboards and people have had to contact ASUS to get them to stick it back in, this will cause the SLI option to not appear in the NVIDIA drivers only but you will see both cards and able to change which card can be a dedicated PhysX if you see that and no SLI option at all in that area of the menu then could be a SLI key issue in the bios or as stated not running at 8x by 8x or a bad sli/nvlink bridge.

I don't think you are having this issue as X570 board but I would contact ASUS to confirm and the main issue it looks like you are having is the cards are not running at 8x by 8x for both cards and that will 100% not allow sli to work too. So get the board to work correctly at 8x by 8x first and then go from there.
 
Thanks for the responses. Turns out the WIFI II version of this mobo does not support SLI...
Bought the non WIFI II version now to allow me to SLI my two cards...

This means my WIFI II version is now up for sale, only used for 2 months....
 
Purgatory said:
That's not true. Also reasons they don't state sli anymore is because nvidia killed sli and now it is mgpu. Any motherboard that has 8x x 8x slots can do sli as long as you have a sli/nvlink bridge that fits to the minimum slots that both do 8x or 16x.
Click to expand...
redsdreads said:
Thanks for the responses. Turns out the WIFI II version of this mobo does not support SLI...
Bought the non WIFI II version now to allow me to SLI my two cards...

This means my WIFI II version is now up for sale, only used for 2 months....
Click to expand...
Sorry, what was that?
 
JollyJamma said:
Sorry, what was that?
Click to expand...

Basically motherboards need to have an SLI key/licence to work seems some companies have removed them so make sure they state SLI compatible. Before they sometimes wouldn't state sli and it would work now it doesn't unless they state it on new motherboards the Z690 boards have been a pain with it and some have the sli keys removed.

If you watch this and from 1min 39secs explains the issue , I had to help Paul there with the issue he was having (Purgatory_Nabil is me on twitter he mentions).



This was the video he was trying to get SLI to work and failed on the z690 board and in end worked on the x570.



I run 3090s in sli/nvlink and my setup is here in the 3090 owners thread for you to see, I use it for my work and gaming and some games support SLI and work but some don't as SLI was dropped and it's now mGPU support needed by the game devs for dx12 and vulkan to be enabled in the game engine.

The Ampere RTX 3090 Owners Thread

my 3090 strix had zero whine until i put an EKWB water block on it, now its super loud like you describe Can be: previous thermalpad would be right on the spot applying some pressure and acting as a dampener or the fans were masking the coil whine. Mine happens on Assassin's creed, not a lot...
forums.overclockers.co.uk forums.overclockers.co.uk


What you quoted with my comment is now incorrect, I did update it further down the thread and said :-

Just to update on this too Asus and some other companies have been removing the sli key from the BIOS of Z690 motherboards and people have had to contact ASUS to get them to stick it back in, this will cause the SLI option to not appear in the NVIDIA drivers only but you will see both cards and able to change which card can be a dedicated PhysX if you see that and no SLI option at all in that area of the menu then could be a SLI key issue in the bios or as stated not running at 8x by 8x or a bad sli/nvlink bridge.
I don't think you are having this issue as X570 board but I would contact ASUS to confirm and the main issue it looks like you are having is the cards are not running at 8x by 8x for both cards and that will 100% not allow sli to work too. So get the board to work correctly at 8x by 8x first and then go from there.

SLI Issues ROG STRIX X570-E Gaming Wifi II & NVME

Hi I am having issues getting my two EVGA Nvidia GeForce GTX 1080 Ti FTW3 to work in SLI on my ASUS ROG STRIX X570-E Gaming Wifi II motherboard. My boot drive is a Crucial M.2 NVME drive in the M.2_1 slot. The GPUs are in slots PCIEX16_1 & PCIEX16_2 and are using a hard Nvidia SLI connector...
forums.overclockers.co.uk forums.overclockers.co.uk
 
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