Blackscreen after running rebarstate at 256mb or higher

[natrixdnb]

System

• Motherboard: gigabyte z170x
• BIOS Version: f22m
• GPU: rtx 3060
• [ y] CSM is turned off. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [y ] 4G decoding is enabled. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [y ] UEFIPatch is applied (see Using UEFIPatch for more information). On some motherboards DSDT Patching is also needed
• [ y] I have read Common issues (and fixes)

Description

After flashing the modded bios, i run rebarstate, if i go higher than the default value (256mb) i get a black screen, wierdly gpuz says that my resizable bar is not enabled in the bios.

[Koekieezz]

@natrixdnb do you have your bios dump?

[natrixdnb]

biosmod.rom.patched.zip

[natrixdnb]

i just managed to get windows detecting resuzable bar with 8gb, but i still cant boot with the rtx3060 onl< with the integrated graphics card.
Looks like my nvidea control panel isnt recognizing my rtx3060, but gpuz does recognize it. Any solutions

biosmod.rom.patched.zip
This is my (working) bios dump. (it lets me enable rezisable bar, but no connection).$

Ps: I also get 5 beeps before booting straight into windows (integrated graphics) without showing post.

[natrixdnb]

Device manager shows me this error.
Can someone please help me ?

[Koekieezz]

Device manager shows me this error. Can someone please help me ?

@natrixdnb Here, flash this bios: Z170XG7_Complete.zip

I suggest you downgrade your bios to stock version F21 using q-flash in the bios, then after flashing it normally, flash this bios using q-flash in the motherboard.

Also, after flashing, run this app as admin, see the ME FW Version is 11.7.0.1261 after flashing the bios mod i gave. If it is, then you can run CoffeeLake/CoffeeLakeRefresh Retail CPUs.

If it worked (rebar is working), could you share a screenshot similiar to this:

[natrixdnb]

Downgrading my bios via Q-flash doesnt work, i get the error: Invalid Bios image. I downgraded it with efiflashmod.87, and flashed the moded bios the same way.
I installed the moded bios like you said and enabled rebar with rebarstate at 32.
Still no post, bootst straight into windows (only with integrated graphic card). I still get the error 12 on de device manager.

Picture with (unlimited) setting: rebar on. Error 12 device manager

When setting rebarstate.exe at 256mb, windows boots with the rtx 3060, but gpuz says rebar is disabled (and disabled in bios) device manager no error

Picture with 256mb setting: rebar off

[natrixdnb]

Looks like its posting with 1gb, rebar on

[Koekieezz]

When setting rebarstate.exe at 256mb, windows boots with the rtx 3060, but gpuz says rebar is disabled (and disabled in bios) device manager no error

@natrixdnb Could you flash this bios F8 normally with q-flash? I've removed the Q-Flash check bit (On bios F8, byte 50 01 05 01 -> 50 01 05 00, on bios F22m, 50 01 07 01 -> 50 01 07 00), see if it works with q-flash normally, if it could be flashed, then proceed q-flash ing the modded bios.

Bios: Z170XG7_Test.zip