2 GPU 1080Ti does not work on mainboard intel S2600CW2R

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Dear,

I have a CPU Intel Xeon E5 2620 v4 and 2 GPUs 1080Ti on a mainboard intel S2600CW2R.

1. I have only one CPU on 1st slot

2. Power for 2 CPUs are plggued in.

3. 1 VGA connect by riser cable on PCIe slot 6, 1 VGA connect directly on PCIe slot 5

4. Only vga on slot 6 can be display, and nothing whit vga on slot 5.

I used Ubuntu 18.02 and the system only see 1 VGA on slot 6.

How to display with both VGAs?

Please help me soon. It's very neccesery

[idata]

Hello tuanb4ddt,

Did you install the video card's driver on your operating system?Regards,FranklinS._Intel

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yes, I can see 1 VGA in ubutu but no solution to display both VGAs

can you tell me?

I can run 2 VGAs 1080Ti with only 1 CPU (slot 5 and slot 6 with riser cable) or not?

yes or no?

thank you

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am I correct to connect 2 VGA in the mainboard with only 1 CPU?

Please help me, i can't find any solution to fix this problem

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Can anyone help me Plz

[idata]

Hello tuanb4ddt,

With this type of configuration of two GPU boards will draw power from the board.According to the TPs:https://www.intel.com/content/dam/support/us/en/documents/server-products/server-boards/S2600CW_TPS_Rev2_4.pdf.pdf https://www.intel.com/content/dam/support/us/en/documents/server-products/server-boards/S2600CW_TPS_Rev2_4.pdf.pdfOn unit 3.4.1Slot 6 has enough power to supply the board for Slot 5 you will need to add power to the board from the power supply.Please try this and let us know the outcome. If there is anything else we can help please feel free to ask.Best regards, Henry A.

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I use a 1600W power for this case, I think it's enough for 2 VGA

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Hello tuanb4ddt,

If both cards are using power directly from the Power Supply.Then is a good possibility that because the CPU already has its own GPU; then is not able to control a third GPU. Also, this type of configuration has not been tested.But on the other hand, I will recommend if you want to use both video cards will be to install it with a second CPU. As mentioned on 3.4.12.1.2 Best regards, Henry A.

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So, you mean I can use 2 VGA with 1 CPU?

But in this case it's not working?

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Hello tuanb4ddt,

I will do some research to try to find an answer for your issue but, have you exposed your issue in ubuntu forums to see if any sort of specific OS configuration can do the trick for you?Regards,Franklin S._Intel

[idata]

Hi tuanb4ddt,

Have you had a moment to check with ubuntu forums as this seems to be closely related to specific OS configuration?Regards,

FranklinS._Intel.

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Hi tuanb4ddt,

Do you still have issues with how the video is displayed on your machine? Where you able to get in contact with ubuntu forums?Regards,

FranklinS._Intel.

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Sorry but I have to use another mainboard from MSI to solved my problem

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Hi tuanb4ddt,

Thank you for the update. We are sorry the intended setup could not be done with our board. Please contact us back if you have any other questions or concerns. Regards,

FranklinS._Intel.