HP Omnibook Xe2 Service Manual

HP OmniBook XE2 Product Information 1-5
 Table 1-2. Activating Power Modes
Power ModeTo Enter ModeTo Turn Back On
Suspend
Low-power/stopped state. Everything is off or in a
low-power state. Network devices are off. Your
previous work session resumes at turn-on. For
plug-and-play operating systems, network
connections resume at turn-on.Press blue power button for about
1 second
–or–
click Start, Shut Down, Standby
(Windows 98)
–or–
click Start, Suspend (Windows 95)
–or–
allow time-out.Press blue power...

1-6 Product Information HP OmniBook XE2
Checking the Status of the OmniBook
The OmniBook status lights, located on the keyboard cover (the display bezel above the keyboard),
indicate power status and drive activity. These lights are on the LED PCA.
 Table 1-3. Status Lights (LED PCA)
IconMeaning
No icon
(Light next to
blue button)Power
Steady green light: OmniBook is running (On mode).
Slowly blinking green light: OmniBook is suspended to RAM (Suspend or Standby mode).
No light: OmniBook is off (Off or...

HP OmniBook XE2 Product Information 1-7
Using Fn Hot Keys
The Fn key combined with another key is a hot key—a shortcut key sequence for various system
controls. For an external keyboard, CTRL+ALT is normally equivalent to the Fn key.
 Table 1-4. Fn Hot Keys
Hot KeyEffect
Fn + F1Decreases the display’s contrast (DSTN displays only).
Fn + F2 Increases the display’s contrast (DSTN displays only).
Fn + F3 Enters Suspend mode (Windows 98); enters Standby mode (Windows 95, Windows NT).
Fn + F4 Enters Suspend...

1-8 Product Information HP OmniBook XE2
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 1-5. System Interrupts
0System timer
1Keyboard...

HP OmniBook XE2 Product Information 1-9
 Table 1-7. System Input/Output Addresses (100-3FF)
170-177Internal CD-ROM drive (secondary IDE controller)
1F0-1F7Internal hard disk drive (primary IDE controller)
220-22FDOS games (FM decoding)
376Internal CD-ROM drive (secondary IDE controller)
378-37FLPT1 (printer port)
388-38BDOS games (FM decoding)
3B0-3BBVGA adapter
3C0-3DFVGA adapter
3E0-3E1PCMCIA controller
3F0-3F5Floppy disk drive controller
3F6Internal hard disk drive (primary IDE controller)
3F7Floppy...

1-10 Product Information HP OmniBook XE2
Specifications
The following tables list descriptions for the OmniBook.
 Table 1-9. OmniBook XE2 Specifications
Physical
AttributesSize: 311mm×249mm×42mm (12.24”×9.80”×1.64”) closed.
Weight: 3.0 kg (6.6 lb.).
Processor
and Bus
Architecture333, 366, 400-MHz Intel Pentium II processor or
433, 466-MHz Celeron processor
MMX technology.
2.5-V low-power processor.
128-KB OR 256-KB built-in L2 cache.
32-bit PCI bus.
Graphics13.3”, 12.1”, or 14.1” active-matrix (TFT)...

HP OmniBook XE2 Product Information 1-11
SoftwareMicrosoft Windows 95 OR Microsoft Windows 98 OR Microsoft Windows NT 4.0.
Windows-compatible Plug-and-Play.
Power management.
VirusScan.
Adobe Acrobat Reader.
My Yahoo!
HP diagnostic tests.
Online documentation.
Electronic registration.
OmniBook Recovery CD(s) included.
Phoenix Card Executive (Windows NT 4.0 only)
Centralized worldwide BIOS and driver update service.
Security
FeaturesUser and supervisor passwords.
Kensington Microsaver lock slot....

1-12 Product Information HP OmniBook XE2
Internal Design
The motherboard PCA is the central component of the OmniBook design. It plays a role in virtually
all system functions. The CPU module and most other subsystems connect to the motherboard.
The following figure shows the connections among the replaceable electrical modules. As a substitute
for a functional block diagram, see the table on page 1-13—it lists the roles that the replaceable
modules play in each of the functional subsystems.
 
 Figure...

HP OmniBook XE2 Product Information 1-13
 Table 1-10. Functional Structure
BootupCPU module
Motherboard
BIOS IC
Floppy disk module
Hard disk driveMain processor (MMO).
Primary system circuitry.
Code for basic system functions.
First source of disk-based startup code.
Second source of disk-based startup code.
ProcessorCPU module
MotherboardMain processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
MemoryRAM board Optional, additional RAM.
PowerBattery
Motherboard
AC adapterPower...