Gateway E-9722R User Manual

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APPENDIX A: Server Specifications
82
Interrupts
The following table reflects a typical configuration, but you can change these interrupts. Use 
this information to determine how to program each interrupt.
Connector pinouts
Main power connector (J48)
0E0000h to 0EFFFFh
2 MB
Extended system BIOS
FC000000h to FFFFFFFFh
64 MB
PCI memory space
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.
ISA Interrupt
Description
IRQ0
8254 timer
IRQ1
Keyboard controller
IRQ2
Cascade for IRQ9
IRQ3
Free
IRQ4
Serial port
IRQ5
VGA
IRQ6
Diskette controller
IRQ7
Free
IRQ8
Real-time clock
IRQ9
Generic, Option for SCI
IRQ10
USB controller
IRQ11
LAN
IRQ12
Mouse controller
IRQ13
Numeric data processor
IRQ14
Primary IDE controller
IRQ15
Free
Pin
Signal Name
1
+3.3 V
2
+3.3 V
3
Ground
Address Range (hex)
Amount
Function