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 Table 1-2.
System Memory HP OmniBook XE3 Product Information 1-15 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) 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