Anyone running AMD and nVidia cards in the same system? (SOLVED)

[thilanliyan]

I have 2x290s and 1x1080.

I tried using a 290 as the primary, then the 1080 in slot 2, and the other 290 in slot 3. I DDu'd all drivers, then installed the nV driver first (successful), then the AMD driver but it only installed correctly for the primary 290. It would not install properly for the 2nd 290. I then tried installing the AMD driver first and that didn't work either.

I will eventually make the 1080 the primary card, but is there a specific card order or driver order I should be following to get it working? Or a specific driver version maybe?

The 290s will be on mining duty only, and the 1080 will be used mostly for gaming.

UPDATE
Okay so I tried the 1080 in the primary slot and still no dice. The card in slot 2 is detected according to the BIOS but nothing is detected in slot 3. And for sure the card in slot 3 works, I tested that already.

Is there any restriction on the number of other cards that can be present with a 10 series card? I know SLI is limited to 2 way with a 1080 but the bios should still detect any other cards present correct?
Thanks for any help!

SOLVED
So it was the PCI-e assignment in the BIOS, I think lol. I could have sworn I changed those settings before and it didn't work but all is well now.

There were two different places for pci-e settings in the BIOS. In one menu I could change individual settings for the slots between AUTO, Gen 1, Gen 2, or Gen 3. In the other menu it was only one general setting for pci-e port speed and it was either AUTO, Gen 1, or Gen 2. Anyway, I set all settings manually to Gen 2 and now all cards are detected with the 1080 in slot 1. I also turned off the Thunderbolt controller and ASMEDIA SATA controller as those apparently steal lanes from Slot 3.

 

[Bouowmx]

It would not install properly for the 2nd 290.

All driver-supported AMD GPUs will share the singular AMD driver installed. Or are you saying the operating system (you should mention the OS) does not display 2 AMD Radeon R9 290?

 

[Bouowmx]

.. Empty

 

[thilanliyan]

All driver-supported AMD GPUs will share the singular AMD driver installed. Or are you saying the operating system (you should mention the OS) does not display 2 AMD Radeon R9 290?

The 2nd 290 showed up in Device Manager as "Unknown Device", and I tried manually updating the driver but that failed too.

 

[Valantar]

If you have the 1080 in slot 2, might it somehow be forcing the slot to run at PCIe x8 rather than x4? After all, SLI doesn't support connections slower than x8, while CF works fine with x4 - and with three cards installed your motherboard is supposed to set those slots to x8, x4 and x4 respectively. Why not run the 1080 in slot 1?

 

[TeknoBug]

I've done Nvidia/AMD and two different AMD cards before, you have to do some tricks for the Nvidia/AMD to play nice together, guru3d even distributed special drivers for that purpose. For two different AMD's, it should be fine, perhaps the BIOS settings causes weird behavior on the second PCI-e slot? I used an R9 280X and an HD5770 (connected to TV for video playback, etc) at one point.

 

[DarthKyrie]

I know this is going to sound stupid but did you make sure that your MB supports using the 3rd PCI-E slot while using another port somewhere else like an SATA port?

 

[Valantar]

From looking at the motherboard manual, that slot looks to be routed from the CPU, not the chipset (at least that's my guess based on the board either supporting x16, x8+x8 or x8+x4+x4 - if it came from the chipset there would be no reason for the second slot to run at x4).

 

[Accord99]

The 290s will be on mining duty only, and the 1080 will be used mostly for gaming.

Thanks for any help!

Have you tried with just the two AMD cards installed, to make sure both of them work first?

Another thing you may want to try is to connect a monitor to the second AMD card.

I'm running a 1080 Ti with a single 290X for mining and unless I connect the 290X to a monitor, I'm not able to control its voltages/clock.

 

[thilanliyan]

Yes the AMD cards definitely work without the nvidia card in the system. I'm mining and typing this post with it.

And yes all 3 pci-e slots work as I had a RX480 in it just before and they all worked fine.

I will try the nV card in slot 1 and report back.

 

[thilanliyan]

Ah damn I just realized I lose Freesync if I put the nV card as the primary card...shoot.

 

[Valantar]

Ah damn I just realized I lose Freesync if I put the nV card as the primary card...shoot.

That, my friend, is something you should have thought of before buying a GTX 1080 in the first place.

 

[thilanliyan]

That, my friend, is something you should have thought of before buying a GTX 1080 in the first place.

Yeah definitely should have.
Anyway I can still use the card just to mine then, and use the 290s in XFire for gaming or mining.

 

[thilanliyan]

Updated

This makes no sense. It worked fine with 3 AMD cards in the same system. Now suddenly with an nvidia card in the primary slot the 3rd pcie slot refuses to work? I don't get it. Am I completely missing something?

Would the BIOS care whether it's an NV or amd card in the system? I know only 2 way sli is supported on this motherboard despite there being 3 slots...could that have something to do with it?

Sure enough, as soon as I remove the nV card, the AMD card in slot 3 is detected...I seriously have no clue what is going on here.

 

[Valantar]

Probably some imbalance/incompatibility in how they negotiate for PCIe lanes. Have you tried with just the 1080 and one 290? And in your original AMD-Nvidia-AMD setup, did you look in GPU-Z at the link speed for the 1080?

 

[thilanliyan]

Probably some imbalance/incompatibility in how they negotiate for PCIe lanes. Have you tried with just the 1080 and one 290? And in your original AMD-Nvidia-AMD setup, did you look in GPU-Z at the link speed for the 1080?

Yes, I'm guessing it's something to do with how the pci-e lanes are separated, but why would it work fine with 3 AMD cards, but screw up when you replace one of those cards with a nV card? Does a 1080 for example REQUIRE 8 pci-e lanes? In theory it should work with only 1 pci-e lane should it not?

Yes, a 1080 and one 290 together worked. They worked fine in slots 1 and 2. Couldn't try slot 3 for the 1080 as it's too long with the HDD cage in the way, but I'm probably going to have to test that to rule it out.

 

[[DHT]Osiris]

Yes, I'm guessing it's something to do with how the pci-e lanes are separated, but why would it work fine with 3 AMD cards, but screw up when you replace one of those cards with a nV card? Does a 1080 for example REQUIRE 8 pci-e lanes? In theory it should work with only 1 pci-e lane should it not?

Yes, a 1080 and one 290 together worked. They worked fine in slots 1 and 2. Couldn't try slot 3 for the 1080 as it's too long with the HDD cage in the way, but I'm probably going to have to test that to rule it out.

Could it be a power issue? You said you had a 480 in, assuming it was in place of the 1080 (so 2x 290's and a 480), technically less power to the pcie lanes there than with the 1080. Just a thought.

 

[thilanliyan]

I thought even with a power issue, the card would be detected in BIOS. It wouldn't really be using much power while idling in the BIOS would it?

 

[Feld]

Have you tried the 1080 in slot 1 and a 290 in slot 3, with slot 2 empty? Just to see if it is possible to get slot 3 to work with the 1080 in the system. Also, maybe if you force slot 1 to operate at 8x in the BIOS it will free up enough resources to avoid the conflict?

 

[thilanliyan]

Have you tried the 1080 in slot 1 and a 290 in slot 3, with slot 2 empty? Just to see if it is possible to get slot 3 to work with the 1080 in the system. Also, maybe if you force slot 1 to operate at 8x in the BIOS it will free up enough resources to avoid the conflict?

Yes, I tried that and the 290 in slot 3 was not detected. However, if I have a 290 in Slot 1 and a 290 in Slot 3, they are both detected.

I have yet to try the 1080 in Slot 3 so I will probably give that a go next once I get the HDD cage out of the way. I also have an old 8800GT I'm gonna try in there to see if it is something specific to the 1080.

Forgot to mention, a while back I had 3x290s (rather than 2x290 + 480) running perfectly well in this system, and I think 290s are more power hungry than 1080s, which is why I'm thinking it isn't a power issue.

 

[thilanliyan]

SOLVED. See OP. Thanks everyone for their suggestions, they very much helped.

 

[sioux]

Old thread, but I have a question about AMD and nVidia on same PC :
I have now the GTX 1080 Ti. Would it be possible to add a second AMD graphic card ?
As far as i know, nVidia is the culprit for the color banding i have, and with my favorite flight sim, it's very very annoying
I could use the AMD, for this flight simulator, and for others, nVidia.
Is that possible, at all ?
Thank you

 

[thilanliyan]

I don't think you would be able to game on anything but the primary card. (ie. you can't choose which card each game uses)
Can anyone else confirm that?

So unless you plan on putting the AMD card in the primary slot every time you want to game, that probably wouldn't work.