Intel YM430TX User Manual page 47

IRQ xx Used By ISA (No/ICU)
These fields indicate whether or not the displayed IRQ for each field is
being used by a Legacy (non-PnP) ISA card. Two options are available:
No/ICU and Yes. The first option, the default value, indicates either that
the displayed IRQ is not used or an ISA Configuration Utility (ICU) is
being used to determine if an ISA card is using that IRQ. If you install a
Legacy ISA card that requires a unique IRQ, and you are not using an
ICU, you must set the field for that IRQ to Yes. For example: If you
install a Legacy ISA card that requires IRQ 10, then set IRQ10 Used By
ISA to Yes.
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. Available options
include: No/ICU and Yes. The first option, 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.
ISA MEM Block BASE (No/ICU)
This field allows you to set the base address and block size of a Legacy ISA
card that uses any memory segment within the C800, CC00, D000, D400,
D800, and DC00 address ranges. If you have such a card, and you are not
using an ICU to specify its address range, select a base address from the six
available options; the ISA MEM Block SIZE field will then appear for
selecting the block size. If you have more than one Legacy ISA card in
your system that requires to use this address range, you can increase the
block size to either 8K, 16K, 32K, or 64K. If you are using an ICU to
accomplish this task, leave ISA MEM Block BASE to its default setting of
No/ICU.
SYMBIOS SCSI BIOS (Auto)
The default uses Auto settings for the onboard SCSI BIOS. If you do not
want to use the onboard SCSI BIOS, choose Disabled.
Intel YM430TX User's Manual 47