So I've started revisiting building my "daily driver" retro machine.
Motherboard is MSI 694T/MS-6309v5 flashed with latest 7.5 bios from MSI's site. The motherboard has been recapped.
Please note, that this is an AMI-bios and I'm missing the Award-bios to test it. Manual has both.

I have a stupid problem, but a problem nonetheless.

I've tested the following drives connected to the motherboard
- Kingston A400 240GB and 120GB with a startech adapter
- Seagate barracuda 7200.9 80GB ATA
- Unidentified (for now) 320GB Sata-HDD with said startech adapter
I've also tested the SATA-HDD with a Promise TX4 adapter.
Bios recognizes all nice and fine with the correct size, but Win98se installer Fdisk goes nuts showing half or less of the capacity.
Now this wouldn't be an issue with XP or 2K, but I'm going to use DOS as well (well, DOS from Win98SE).
Partitioning the drives elsewhere or with linux works, kind-of.
- Partition 1; 10GB FAT32: Win98SE
- Partition 2; 30GB FAT32: Games, drivers etc
- Partition 3; 60GB Logical:
-- Partition 5: 20GB reserved for Win2K
-- Partition 6: 40GB reserved for WinXP

With this setup, I wasn't able to restart into MS-DOS -mode (protection error). Neither was I able to boot directly (F8) into DOS and access the D-drive.

Now, is there a bios-patcher for AMI-bios "to make this work", or is the AWARD-bios available somewhere? I've spent some time on the waybackmachine to no avail.

Any help appreciated.