HP OmniBook XE3 Product Information 1-15
System Resources
The following tables list the default values for the notebook’s system resources. Use the BIOS Setup
utility (see page 3-29) to view all available port and audio device configurations in the System
Devices menu.
The tables in this section show typical resource usage as set up by the notebook’s BIOS. Plug-and-
play operating systems, drivers, and BIOS Setup settings may change some of the entries.
Table 1-1. System Interrupts
0 System timer
1 Keyboard
2 Cascade from secondary interrupt controller
3 Free
4 COM1 (serial port)
5 Audio
6 Floppy disk drive
7 LPT1 (ECP parallel port)
8 Real-time clock
9 SCI
10 PCI IRQ (shared by all PCI devices)
11 Free (or MIDI if enabled)
12 Touch pad, PS/2 mouse
13 Numeric coprocessor
14 Internal hard disk drive (primary IDE controller)
15 Internal CD-ROM drive (secondary IDE controller)
Table 1-2. System Memory
00000–9FFFF System memory
A0000–BFFFF Video
C0000–CFFFF Video BIOS
D0000–DBFFF Free: can be used for upper memory blocks
(UMBs) or PC card memory windows
DC000–FFFF System BIOS
