I have a Gigabyte C246M-WU4 motherboard and I’m trying to enable the selection of the iGPU Aperture Size in the BIOS but I don’t know where to start as I’ve never modified a BIOS before.
The option isn’t available in the BIOS and it isn’t mentioned in the manual.
However, if I open the latest BIOS file in AMIBCP, I can see that the option is there:
What you see with AMIBCP is the code only, default NVRAM variables has his settings, modern AMI V bios changes made with AMIBCP usually doesn’t work as other modules need changes, this utility was and is valid for AMI IV core bios.
You may need to edit AMIsetup and AMISetupdata and so on… look in the forum.
Do you confirm that if I want to change the Aperture Size from the default value of 256MB to 2048MB, all I have to do is boot into grub-mod-setup_var and execute the following command?:
I found this post that shows how to unhide a section of the bios to uncover the “aperture size” setting:
As I was following it and applying the same to my BIOS, something didn’t quite match because it appeared that aperture size for my BIOS was already visible…there was no “IF statement” to hide it.
Yet in the BIOS it wasn’t there.
It turned out that the entry has been unlocked by Gigabyte in one of the latest firmware updates and all I add to do was to clear the CMOS and it now shows correctly in the BIOS. (It still isn’t mentioned in the manual).