Chapter 4: BIOS
4-17
BIOS
These DMA channels control the data transfers between the I/O devices
and the system memory. The chipset allows the BIOS to choose which
channels to do the job. The settings are
PnP
or
ISA/EISA.
IRQ3
IRQ4
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
IRQ14
IRQ15
These options specify which bus the specified IRQ line is used on and
allow you to reserve IRQs for legacy ISA adapter cards. If more IRQs
must be removed from the pool, the end user can use these options to
reserve the IRQ by assigning an
ISA/EISA
setting to it. Onboard I/O is
configured by AMIBIOS. All IRQs used by onboard I/O are configured as
PCI/PnP.
IRQ14 and 15 will not be available if the onboard PCI IDE is enabled. If all
IRQs are set to
ISA/EISA
and IRQ14 and 15 are allocated to the onboard PCI
IDE, IRQ 9 will still be available for PCI and PnP devices. This is because at
least one IRQ must be available for PCI and PnP devices. The settings
are
PCI/PnP
or
ISA/EISA.
(See page 3-5 for information on shared
IRQs.)
Reserved Memory Size
This option specifies the size of the memory area reserved for legacy ISA
adapter cards. The settings are
Disabled
,
16K
,
32K
or
64K
.
Reserved Memory Address
This option specifies the beginning address (in hex) of the reserved
memory area. The specified ROM memory area is reserved for use by
legacy ISA adapter cards. The settings are
C0000
,
C4000
,
C8000
,
CC000
,
D0000
,
D4000
,
D8000
or
DC000
.
Summary of Contents for Super 370SCD
Page 8: ...Notes SUPER PIIISCA PIIISCD PIIISCE 370SCD User s Manual...
Page 11: ...Chapter 1 Introduction 1 3 Introduction Notes...
Page 15: ...Chapter 1 Introduction 1 7 Introduction SUPER 370SCD Figure 1 4 SUPER 370SCD Motherboard Image...
Page 34: ...SUPER PIIISCA PIIISCD PIIISCE 370SCD User s Manual 1 26 Introduction Notes...
Page 78: ...BIOS Manual 4 22 BIOS Notes...