1-8
Product Information
HP OmniBook 2100/3000/3100
System Resources
Below are default values for system resources. To see other, non-default possibilities, use the BIOS
Setup utility (see page 3-23), which lists port and audio device configurations in the System Devices
menu.
The tables in this section show typical resource usage as set up by the OmniBook BIOS. Plug-and-
play operating systems, drivers, and BIOS Setup settings may change some of the entries.
Table 1-7. System Interrupts
0
System timer
1
Keyboard
2
Cascade IRQ 9
3
Free (or COM2 infrared port, if enabled)
4
COM1 (serial port)
5
Crystal sound
6
Floppy drive
7
LPT1 (ECP parallel port)
8
Real-time clock
OmniBook 2100/3100
9
Free
10
USB and CardBus - assigned by Windows driver
11
Free
OmniBook 3000
9
Free (or MIDI, if enabled)
10
USB - assigned by Windows driver
11
CardBus - assigned by Windows driver
12
Pointing device
13
Numeric data processor
14
Internal hard disk (primary IDE controller)
15
Internal CD-ROM drive (secondary IDE controller)
Table 1-8. System Memory
00000 - 9FFFF
System memory
A0000 - BFFFF
Video
C0000 - CBFFF
Video BIOS
OmniBook 2100/3100
CC000 - DBFFF*
Free**
DC000*- FFFFF
System BIOS
OmniBook 3000
CC000 - DFFFF*
Free**
E0000*- FFFFF
System BIOS
*
Approximate boundary.
** Valid uses for memory addresses CC000-DBFFF or CC000-DFFFF:
Upper memory blocks (UMBs).
PC card memory windows.