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Dual GPU with Nvidia and AMD

PITR
By PITR
in Graphics Cards
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Your second pcie x16 slot (pcie4 in the manual) only runs at x4 speed. Nvidia gpus need x8 to work. Put the nvidia gpu in the first slot and the amd one in the second slot, amd can run on x4

Nvme nvidia only needs x8 for SLI. x4 works in normal use.

 

Also pcie4 (the second x16 slot) is disabled if you have a nvme drive in your first m.2 slot

Posted

Hi,
I'm trying to use both Nvidia GTX 1060 and a Radeon 5700XT on a single PC.
My PSU is more than capable of handling it and I did switch into a 2x8 PCIe mode in my BIOS, but Windows still doesn't recognize the GPU in the second slot.

I want the second GPU for emulation and for the legacy ports, not dual GPU gaming
I'm using a ASRock AB350 GAMING K4 and a AMD Ryzen 7 2700X

Thanks

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2 minutes ago, PITR said:

Hi,
I'm trying to use both Nvidia GTX 1060 and a Radeon 5700XT on a single PC.
My PSU is more than capable of handling it and I did switch into a 2x8 PCIe mode in my BIOS, but Windows still doesn't recognize the GPU in the second slot.

I want the second GPU for emulation and for the legacy ports, not dual GPU gaming
I'm using a ASRock AB350 GAMING K4 and a AMD Ryzen 7 2700X

Thanks

But the rx5700 will be better for emulation and legacy games as it's just stronger? So not really any point in having the gtx 1060.

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Install Nvidia drivers before AMD one?

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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1 minute ago, jaslion said:

But the rx5700 will be better for emulation and legacy games as it's just stronger? So not really any point in having the gtx 1060.

5700XT gives me 7 FPS in Ryujinx while GTX 1060 sits at around 30 FPS. It's probably going to take them years to optimize for AMD. It's always like that with modern emulators

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Your second pcie x16 slot (pcie4 in the manual) only runs at x4 speed. Nvidia gpus need x8 to work. Put the nvidia gpu in the first slot and the amd one in the second slot, amd can run on x4

Nvme nvidia only needs x8 for SLI. x4 works in normal use.

 

Also pcie4 (the second x16 slot) is disabled if you have a nvme drive in your first m.2 slot

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10 minutes ago, PITR said:

My PSU is more than capable of handling it and I did switch into a 2x8 PCIe mode in my BIOS, but Windows still doesn't recognize the GPU in the second slot.

Does that happen regardless of which gpu is in which slot?

Don't ask to ask, just ask... please 🤨

sudo chmod -R 000 /*

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2 minutes ago, Medicate said:

Your second pcie x16 slot (pcie4 in the manual) only runs at x4 speed. Nvidia gpus need x8 to work. Put the nvidia gpu in the first slot and the amd one in the second slot, amd can run on x4

This will however slow down the 5700 as it does saturate a pcie x4 slot.

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1 minute ago, PITR said:

Yes, only the first slot GPU works

All right, sounds like a problem with the second pcie slot then. Check that there is no dust in it and that there's no damage to the slot itself.

 

By the way, does the second gpu show up in device manager?

Don't ask to ask, just ask... please 🤨

sudo chmod -R 000 /*

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