MSI MS-6728 Manual page 57

BIOS Setup
Set DMAs to PnP or ISA
Press <Enter> to enter the sub-menu and the following screen appears:
DMA Channel 0/1/3/5/6/7
These items specify the bus that the system DMA (Direct Memory Access) channel is
using.
The settings determine if AMIBIOS should remove a DMA from the available DMAs
passed to devices that are configurable by the system BIOS. The available DMA pool
is determined by reading the ESCD NVRAM. If more DMAs must be removed from the
pool, the end user can reserve the DMA by assigning an [ISA/EISA] setting to it.
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