F5F Stay Refreshed Hardware Desktop Configuration using two RTX 4090 graphics cards paired with an ASUS Z790 Extreme motherboard.

Configuration using two RTX 4090 graphics cards paired with an ASUS Z790 Extreme motherboard.

Configuration using two RTX 4090 graphics cards paired with an ASUS Z790 Extreme motherboard.

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Thifleno
Member
206
08-08-2022, 10:05 PM
#1
Build issues arise when both GPUs are connected simultaneously. Functioning correctly with one GPU at a time, regardless of slot or card selection. Excluded motherboard components and GPU slots as potential causes. Experimented with PCI generation changes and NVMe drive removal. Full specifications attached. Assistance would be invaluable.
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Thifleno
08-08-2022, 10:05 PM #1

Build issues arise when both GPUs are connected simultaneously. Functioning correctly with one GPU at a time, regardless of slot or card selection. Excluded motherboard components and GPU slots as potential causes. Experimented with PCI generation changes and NVMe drive removal. Full specifications attached. Assistance would be invaluable.

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Hols8888
Member
140
08-09-2022, 10:31 AM
#2
The manual specifies using both X8 slots when running two GPUs. The M.2 slot right above the bottom PCIe slot isn't available in this setup.
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Hols8888
08-09-2022, 10:31 AM #2

The manual specifies using both X8 slots when running two GPUs. The M.2 slot right above the bottom PCIe slot isn't available in this setup.

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liorstobi
Junior Member
7
08-09-2022, 12:47 PM
#3
The question seeks clarification on the specific problem being discussed.
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liorstobi
08-09-2022, 12:47 PM #3

The question seeks clarification on the specific problem being discussed.

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Razlorus
Posting Freak
976
08-25-2022, 02:07 PM
#4
From the images I created, it seemed one GPU was consistently marked as "not present" based on the configurations they attempted.
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Razlorus
08-25-2022, 02:07 PM #4

From the images I created, it seemed one GPU was consistently marked as "not present" based on the configurations they attempted.

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thorpops12
Member
244
08-25-2022, 03:31 PM
#5
You can find the information by checking the attached pictures of the BIOS options.
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thorpops12
08-25-2022, 03:31 PM #5

You can find the information by checking the attached pictures of the BIOS options.

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katnissgirl115
Member
153
08-25-2022, 03:41 PM
#6
I installed both GPUs but only saw one active in Windows. I suspected a faulty GPU or a bad PCI slot, so I removed one and tried again with each card in its own slot. Both functioned properly individually. Together, they didn’t appear at all.
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katnissgirl115
08-25-2022, 03:41 PM #6

I installed both GPUs but only saw one active in Windows. I suspected a faulty GPU or a bad PCI slot, so I removed one and tried again with each card in its own slot. Both functioned properly individually. Together, they didn’t appear at all.

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HellNether
Senior Member
731
09-12-2022, 06:18 AM
#7
I attempted this. Now the bios display shows: PXIEX16(G5)_1 Link speed - x0 PCIEX15(G5)_2 Link speed x8
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HellNether
09-12-2022, 06:18 AM #7

I attempted this. Now the bios display shows: PXIEX16(G5)_1 Link speed - x0 PCIEX15(G5)_2 Link speed x8

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VitoSEXY
Posting Freak
797
09-16-2022, 12:44 PM
#8
I adjusted the setup by keeping the top NVMe port vacant so you could utilize two x8 PCIe connections.
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VitoSEXY
09-16-2022, 12:44 PM #8

I adjusted the setup by keeping the top NVMe port vacant so you could utilize two x8 PCIe connections.

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ladymorepork
Posting Freak
791
09-16-2022, 08:36 PM
#9
I deleted the NVME entirely. Next, I attempted to boot using only two GPUs. One displayed X0 while the other showed X8.
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ladymorepork
09-16-2022, 08:36 PM #9

I deleted the NVME entirely. Next, I attempted to boot using only two GPUs. One displayed X0 while the other showed X8.

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ghostghillie07
Member
234
09-16-2022, 10:53 PM
#10
You might want to reach out to ASUS customer support for assistance. The instructions suggest it should be feasible.
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ghostghillie07
09-16-2022, 10:53 PM #10

You might want to reach out to ASUS customer support for assistance. The instructions suggest it should be feasible.