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 3-22), 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.