[Request] Enable AHCI for ASUS RoG G703VI-XH74K

[okanisis]

First time poster and completely lost in the world of BIOS modding.

It looks really fun but feels beyond me...

I've got a laptop that has been a semi-paper weight with a number of NVME M.2 slots hard coded into Intel RST which is some kind of proprietary RAID - i'm sure you know about it.

I like Linux and use Arch Linux but can't get access to any drives I place into the M.2 slots and cannot find a setting in the BIOS to enable AHCI and expose them to the OS.

dmidecode shows me the following information:

Code:

dmidecode --type=0 # dmidecode 3.4 Getting SMBIOS data from sysfs. SMBIOS 3.0.0 present. Handle 0x0000, DMI type 0, 24 bytes BIOS Information        Vendor: American Megatrends Inc.        Version: G703VI.317        Release Date: 10/28/2020        Address: 0xF0000        Runtime Size: 64 kB        ROM Size: 16 MB        Characteristics:                PCI is supported                BIOS is upgradeable                BIOS shadowing is allowed                Boot from CD is supported                Selectable boot is supported                BIOS ROM is socketed                EDD is supported                5.25"/1.2 MB floppy services are supported (int 13h)                3.5"/720 kB floppy services are supported (int 13h)                3.5"/2.88 MB floppy services are supported (int 13h)                Print screen service is supported (int 5h)                8042 keyboard services are supported (int 9h)                Serial services are supported (int 14h)                Printer services are supported (int 17h)                ACPI is supported                USB legacy is supported                Smart battery is supported                BIOS boot specification is supported                Targeted content distribution is supported                UEFI is supported        BIOS Revision: 5.12

Generated a .rom but don't know if it's useful for anything with:

Code:

dd if=/dev/mem of=pcbios.rom bs=64k skip=15 count=1

I'd really like to enable AHCI mode and get those extra slots exposed to linux. If anyone can assist and needs any additional information, please ask - I'd be forever grateful.