Bootup
Processor
Memory
Power
Display
Hard disk
Floppy drive
Keyboard
Pointer
Audio
Status
Serial
Parallel
Infrared
PS/2 port
USB
Docking port
PCMCIA
CPU module Motherboard
BIOS IC
Floppy disk module Hard disk drive
CPU module
Motherboard
Motherboard
RAM board
VGA PCA
Battery
Motherboard
AC adapter
Motherboard
LCD module
Inverter PCA
LVDS PCA
VGA PCA
Motherboard Hard disk drive
Motherboard Floppy disk module
Motherboard
BIOS IC
Keyboard
Motherboard
BIOS IC
Keyboard
Top case
Motherboard
VGA PCA Audio jack PCA Inverter PCA Speakers
Motherboard LED strip cable
VGA PCA
Motherboard
Motherboard
Motherboard
IR PCA
Motherboard
Motherboard
Motherboard
Motherboard PCMCIA socket
Table
Main processor (MMO). Primary system circuitry.
Code for basic system functions (part of motherboard on OB 4150). First source of
Second source of
Main processor, numeric data processor, L1 and L2 cache. Primary system circuitry.
No onboard RAM (OB 4150), or first 32 MB of RAM (OB 4100). Changeable RAM (1 slot on OB 4100, 2 slots on OB 4150). Video RAM.
Power storage.
AC adapter socket, power switch, lid switch,
Power control circuitry.
PCMCIA/zoomed video controller. Display output, backlight.
Power converter for backlight.
Display drivers, LVDS processing (OB 4100/4150†).
Display/graphics controller, video RAM (OB 4150B: LVDS processing).
Hard disk controller.
Hard disk mechanism.
I/O controller, floppy connector.
Floppy disk mechanism.
Keyboard controller.
Keyboard BIOS (part of motherboard on OB 4150).
Key switches.
Keyboard controller, pointing stick controller (PS/2 output). Keyboard BIOS (part of motherboard on OB 4150). Pointing stick sensor.
Touch pad sensor, controller (PS/2 output).
Audio controller (OB 4100/4150B), audio decoder, speaker amplifier, headphone amplifier, zoomed video controller, mute switch.
Audio controller (OB 4150†). External audio jacks. Microphone.
Speakers.
Keyboard controller, plus keyboard LEDs (OB 4150).
Main LEDs.
Keyboard LEDs (OB 4100).
I/O controller, serial connector.
I/O controller, parallel connector.
I/O controller.
Infrared transmitter/receiver.
Keyboard controller, PS/2 connector.
Bus controller (South Bridge), USB connector.
Docking logic, docking connector.
PCMCIA controller.
PCMCIA connectors.
†Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number.
HP OmniBook 4100/4150 | Product Information |