Electronic Specifications; Memory Map; Interrupts - Gateway E-9525R User Manual

APPENDIX A: Server Specifications

Electronic specifications

Memory map

Interrupts

Important
If you disable an IDE controller to free the
interrupt for that controller, you must
physically unplug the IDE cable from the
system board. Simply disabling the drive
by configuring the BIOS option does not
make the interrupt available.
96
Address Range (hex)
0 to 07FFFFh
0A0000h to 0BFFFFh
0C0000h and 0DFFFFh
0E0000h to 0FFFFFh
0E0000h to 0EFFFFh
FC000000h to FFFFFFFFh
The following table reflects a typical configuration, but you can change these
interrupts. Use this information to determine how to program each interrupt.
ISA Interrupt
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Amount Function
640 KB DOS region, base system memory
128 KB Video or SMM memory
128 KB Expansion card BIOS and buffer area
128 KB System BIOS
2 MB Extended system BIOS
64 MB PCI memory space
Description
8254 timer
Keyboard controller
Cascade for IRQ9
Free
Serial port
Hot-plug SCSI controller
Diskette controller
Free
Real-time clock
Generic, Option for SCI
VGA
USB
Mouse controller
Numeric data processor
Primary IDE controller
Secondary IDE controller
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