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Specifications, Regulatory, and Safety Information
Software System Resources
6-4
Software System Resources
Below are default values for the system resources. To see other, non-default
possibilities, refer to the System Configuration Utility, which lists port and audio
device configurations in the Input/Output menu.
Interrupt Capabilities (IRQs)
DMA Channel Capabilities
0
System timer
0
Free
1
Keyboard
1
Sound
2
programmable interrupt controller
2
Floppy-disk drive
3
Free (COM2 or COM4 if modem installed)
3
Free
4
COM1 (external serial port)
4
DMA controller
5
ESS sound chip
5
Wave 2
6
Floppy-disk drive
6
Free
7
LPT1 (external parallel port)
7
Free
8
Real-time clock
9
Free
10
IrDA (infrared) and SCSI
11
Free
12
Pointing device
13
Math co-processor
14
Hard disk
15
Docking/PCI slot
The PC Card's IRQ depends on the card.
Memory Map
C000-C7FF
VGA BIOS
C800-CFFF
Free
D000-D1FF
PC Card memory for Windows 3.1
D000-E7FF
Free (except for the above)
E800-EBFF
Plug-n-Play BIOS
EC00-EF7F
PCI BIOS
EF80-EFFF
Enhanced Parallel Port BIOS
F000-FFFF
System BIOS