System resources – HP XE3 User Manual
Page 23
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