I have an Acer v3-571G (BIOS v2.21) laptop with integrated 710M and HD4000 graphics running Windows 10 64-bit. I've been running an eGPU setup succesfully for the past year now with a MSI GTX970 and an EXP GDC Beast adapter, both powered by a 600W Zalman ATX PSU. It worked perfectly for a year, but a few weeks ago I was messing with the graphics drivers to solve a minor brightness problem on my laptop, and my PC isn't detecting the eGPU anymore. When I was messing with the drivers the eGPU was disconnected and the Wifi-card works in the exact same mPCIe slot, so I'm pretty sure it's a software problem.
Things I have tried so far:
- Try A LOT of drivers (Intel Management Engine, nVidia Graphics, Intel Graphics, Acer PCIe etc.)
- Replace mPCIe to HDMI cable
- Hotplugging from sleep
- Paperclip in ATX motherboard plug to power it up before PC
- Change EXP GDC's jumper settings
- BIOS's secure boot off
(- Legacy BIOS will not detect any OS, so couldn't test this)
There is literally no sign of the eGPU in Device Manager, and plugging a USB in the EXP GDC does nothing as well. I'm almost 100% sure the eGPU is connected properly, since it worked perfectly for over a year, and it powers on (fans, lights) when the PC is booted.
Any ideas? Any suggestions/ advice is greatly appreciated!