Second PCIE Slot broken or just disabled ?

[OtisCorporation]

Hello together, 

 

i just bought and installed the MSI MPG X570 Gaming Pro Carbon Motherboard in my PC. With a Ryzen 9 3900x. 

 

As I like the aesthetics of the GPU being lower I wanted to put it into the second PCIE slot, but it wasn't detected (Nividia GTX 1070) I then tested it with an Nvidia GTX 1050 and the troubleshoot LED on the side of the Motherboard still said "VGA".  (Yes I know that the lower PCIE slot is not optimal for performance).  

 

So I put the GPU in the first PCIE slot and low and behold it worked just fine. The user manual just stated, that they advise to put the GPU in the first PCIE slot, but there nothing about that id will not work. 

 

So here's my question. Is the second PCIE slot broken? Or is it just for SLI and Crossfire? I would like to know because then I could still replace it with a new one. 

 

Does any one had the same issue ? Thank you very much for your replies. 

 

Otis 

[OtisCorporation]

1 minute ago, Genwyn said:

Did you clear the bios after swapping the slots? Sometimes the bios will refuse to accept that a device it knows is in a different slot. It thinks the gpu is still in slot 1 because it can see the gpu is there, but isn't working.

 

 

Hi thanks. At the first boot, the GPU was in Slot 2 only after 2 GPUs didn't work I thought of putting it in Slot one ( where it than worked). But I will try clearing the bios. Thanks 

[Aldito96]

On 8/27/2019 at 2:26 PM, OtisCorporation said:

Hi thanks. At the first boot, the GPU was in Slot 2 only after 2 GPUs didn't work I thought of putting it in Slot one ( where it than worked). But I will try clearing the bios. Thanks 

You figure this issue out. I got a different motherboard but same issue I think. Im trying to use 2 GPUs slot 1 works fine but when I use slot 2. I run into issues.

[XHT_001]

it is caused by a mix of the motherboard bios and geforce driver's https://www.nvidia.com/en-us/geforce/forums/support/312222/sli-and-x570-chipset-driver-issue/

 

your best option is to try forceware driver's 419.35 https://www.nvidia.com/Download/driverResults.aspx/144363/en-us