Using NVFlash on a 64-bit system requires administrative privileges and careful execution: How to flash a GPU bios with NVflash - MyMiningRig
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It can display the detailed version of the VBIOS currently loaded on the adapter. Using NVFlash on a 64-bit system requires administrative
The utility identifies the specific EEPROM part used on the display adapter. Step-by-Step Guide for 64-Bit Windows nvflash download 64 bit