Hello everybody...

At first I found and installed the V4 VBios in my 4 Sapphire Rx 480 Nitro + 8gb on Asus Z170 Deluxe, but then I tried to add the R9 390 Nitro 8gb I had in the drawer and Asus does not work with more than 4 cards ...
I ordered a MSI Gaming Z170A Carbon Pro that came yesterday and I immediately changed the BIOS with a lot of problems ... but this is the past ...

Now the V4 worked well before UEFI on my old Windows 10, but now I'm not working the motherboard, I have to use it Stock

vbios version of the RX 480 Nitro + Sapphire is:

Standard
P/N 113-2E3470U.X5W
E347 Polaris 10 XT A1 GDDR5 256Mx32 8GB 300e/300m
Image Size 0xE600
CRC 0x4100

Silent
P/N 113-2E3470U.S5W
E347 Polaris 10 XT A1 GDDR5 256Mx32 8GB 300e/300m
Image Size 0x80000
CRC 0x4700

I tried to replace the original Silent and PC works smoothly

I tried to download "Polaris" and edit the original following the parameters of the V4, but the motherboard is one long beep and two short beeps and proceed with the Windows startup, and turned black screen.

Can someone explain me how to do or where to go to find help to vbios that works with UEFI?!?!