Your M6-1214TX doesn't have an IDE interface. It uses SATA to connect the internal disk, just like most other computers made in the past 7–10 years, and SATA always uses DMA; you couldn't even turn it off.
Not sure about where it shows up in Device Manager, though. It's possible that Win8 lists SATA controllers under "Storage controllers" next to other types (SCSI and such).