@Fernando I’m just installed your R4G.CAP modded bios and still everything is the same. Still can’t access IRST,I pressed CTRL+I then my boot giving me blue screen error. My cpu is intel core i7 4820k that is why giving me error because does’t support IRST then I need to flash from another method or before need to downgrade bios I think. I decided 4901 bios is not compatible with modding,maybe in this bios file version having something locking security to disable modding. I tried 5 usb stick and no luck. Two 8 gb,two 4 gb and one 2 gb with FAT32 formatted.in the pic with red signed only accepted my motherboard to install flashback bios update,Kingston 8Gb.
What do you suggest?
