External GPU turns on but it doesn't show up at all in device manager.

[Bolowaat-Bun]

I have Zotac GTX 960 2GB with a V8.5 EXP GDC dock EXP GDC V8.5 External Laptop GPU dock NGFF M.2 A New
. I replaced the Wi-fi card with a NGFF cord and on the other end is HDMI that connects to the dock. My power supply is 240 and is possible to switch to 480 watts. The cables with the PSU are SATA, 6 pin PCIE, and 20/24 pin. The dock came with an extension of 24 pin to 8 pin to connect which came useful. My GPU needs 6 pin extra which I used from the PSU
My Notebook model is a HP EliteBook 840 G6. The GPU is running perfectly fine. and its even blowing the fans based off heat, but Windows doesn't detect in device manager. You might be thinking "It will recognize it as Microsoft Display Adapter unless you download drivers" but there's nothing in device manager. Just my UHD 620. NVIDIA doesn't detect it either so I cannot download drivers. Can someone tell me what the issue is?

[Paul_Tikkanen]

What I'm thinking is the M.2 Wi-Fi card slot only supports Wi-Fi adapters.

I don't know of any HP notebook that supports an eGPU from the Wi-Fi card slot.

[Bolowaat-Bun]

it worked the first few times, but I changed some setting. I don't remember what it was. I also wiped my SSD 3 times and reinstalled Windows and it still doesn't work

[Paul_Tikkanen]

I'm surprised it worked at all.

If you changed a BIOS setting, perhaps setting the BIOS to its defaults and saving the setting will get the eGPU to work again.

If you changed some other setting in Windows, unfortunately I would have no idea how to bring the eGPU back online.