Windows 10: More than 2 gpu not recognized

Hi,

I have a x570ud gigabyte motherboard, 8gb ram and ryzen 5, with a 256gb nvme.

I bought this config, so that I could also use it for mining too, I have 2 3060ti and a 3070, I am trying to run one of the 3060 ti gpu through riser through pcie1x for mining, while the other 2 GPUs are connected directly through x16 slots, however the GPU connected via the riser is not visible in device manager, I tried placing the riser 1x slot in an emotional 16x slot too, but then too it was not visible.

I tried enabling 4g decoding in bios and gen2, but to no avail.

I then arranged a nvidia 1030, and tried to run that via the riser, I thought since the 1030 required no external power, it could be visible, I understand there is no reason for this line of thought, but since I was able to get my hands on an older gpu, which had a differentiation, I wanted to give it a shot.

And this time the 1030 gpu was recognised easily through the riser!

I have tried and searched whatever I could, really need some help here, would be awesome if someone could diagnose and help me !

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:)

 

GPU 2 no longer recognized n BIOS

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• Flash BIOS to latest version, reverted to previous and back to latest.
• Swapped graphic card ( that rules out faulty gpu )
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• Booted with 1 RAM stick
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What else can i try? Specs Maximus 7 Ranger i7-4790K R9 290X CF

 

B(lack)SOD after closing GPU demanding applications and games

I would like to suggest 2 more things if you don't mind,
1. Seat the GPU in another slot, if possible, and see if that helps anything
2. Use the GPU in another system, if possible, this is a step to determine that it is really the GPU and not multiple defective slots or something else from the system.

 

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