How to extract vBIOS from a full BIOS Dump?

Information :
Laptop Model : Asus n580gd, mobo : x580
Bios ver : 309
BIOS menu Modded/Unlocked already : Yes
vBIOS ver : 86.07.4F.00.22

I am trying to modify the vBIOS of my GTX1050 to raise the temperature limit (now it stabilizes at 84C while gaming, I am trying to stabilize it at 90C) but I cannot seem to read the vBIOS with gpu-z so I’m guessing the vBIOS is locked behind BIOS. I have made a full dump of my current BIOS and it’s settings using fptw64. How shall I extract vBIOS from it to modify it?
here is the full dump : link

If anyone needs any other info, please ask

BIOS Modding: Introduction and Preparations
AMD and Nvidia GOP update (No requests, DIY)
Modified NVFlash v5.667.0