Asus MES-N User Manual page 61

4. BIOS SETUP
PCI/PNP ISA DMA Resource Exclusion
DMA x Used By ISA: [No/ICU]
These fields indicate whether or not the displayed DMA channel for each
field is being used by a legacy (non-PnP) ISA card. The default setting
indicates either that the displayed DMA channel is not used or an ICU is
being used to determine if an ISA card is using that channel. If you install
a legacy ISA card that requires a unique DMA channel, and you are not
using an ICU, you must set the field for that channel to [Yes]. Configura-
tion options are: [No/ICU] [Yes]
PCI/PNP ISA UMB Resource Exclusion
ASUS MES-N User's Manual 61