Are you sure about the board model number? How about DG41TX?
And, what options do you see for ATA/IDE mode?
And, here is the latest bios if you are a DG41TX (bios 0054):
https://downloadcenter.intel.com/download/20106/?product=43605 Download BIOS Update [TXG4110H.86A]
Good morning MrMitch!
I'm trying to install Ubuntu 16.04, and I already have Win8.1.
When I start Ubuntu installation, it doesn't see the HDD. As I understand that is because file system that is used by Win is NTFS, and linux uses ext4. Which is why I need AHCI.
My BIOS looks similar, but "Configure Storage Controller as" option is missing.
Thank you for your help!
So what you need to do now is boot into Windows 8.1 and shrink your NTFS partition down so you have some free space. Then create a FAT32 partition out of the free space and that should then be seen by the Ubuntu installer. If Windows 8.1 sees the HDD correctly then you are in AHCI or IDE mode which are both supported by Ubuntu.