Question: how to flash vbios nvidia?
Answer: Step 1: Looking at the GPU info and saving your GPU BIOS , this is done with GPU-Z. ... 
Step 2 : Loading the BIOS, this is done with NiBiTor. ... 
Step 3: Changing the clock speeds and saving the overclocked BIOS.( ... 
Step 4: Preparing the flash, we need nvflash for this. ... 
Step 5: Flashing the new BIOS.