Question How to repair gpu after failed flash?

vulpix

Prominent
Aug 9, 2020
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My gtx 1070 randomly stopped working. The monitor would go black and the fans would get very loud.
After restarting it said please power down and connect the pci cables. I got a new psu and it still did not work so I tried flashing it to a
newer gpu bios. Now when I start the pc the monitor just stays black. My Cpu does not have integrated graphics but I have an older secondary gpu. Blind flashing does not work because if I try it through cmd and nvflash it says no adapter detected and the gpu also does not show up in the device manager. What can I do?
 

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