System Interrupts | HP 14XL242, 14XL352, 14XL250, 14XL355, 14XL246

Presario 1400 Series

Model XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356

System Interrupts

System Interrupts

Hardware IRQ	System Function	Hardware IRQ	System Function

IRQ0

IRQ1

IRQ2

IRQ4

IRQ6

IRQ7

IRQ8

IRQ9

IRQ9

IRQ9

System Timer	IRQ10

Standard 101/102-	IRQ11
key or Microsoft
Natural Keyboard

Programmable	IRQ11
Interrupt Controller

Communications Port	IRQ11
(COM1)

Standard Floppy Disk	IRQ11
Controller

Printer Port (LPT1)	IRQ12

System CMOS/Real	IRQ13
Time Clock

VIA PCI Audio	IRQ14
Controller

Texas Instruments	IRQ14
PCI-1211 CardBus
Controller

Trident CyberBlade i1	IRQ15
AGP (51)

	IRQ15

SCI IRQ used by ACPI Bus

ACPI IRQ Holder for PCI IRQ Steering

VIA Tech 3038 PCI to USB Universal Host Controller

ACPI IRQ Holder for PCI IRQ Steering

Compaq PCI Modem Enumerator

Synaptics PS/2

TouchPad

Numeric Data

Processor

VIA Bus Master PCI IDE Controller

Primary IDE

Controller (Dual

FIFO)

VIA Bus Master PCI IDE Controller

Secondary IDE

Controller (Dual

FIFO)

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES

SPECIFICATIONS 3

Image 19

HP 14XL242, 14XL352, 14XL250, 14XL355, 14XL246 manual System Interrupts Hardware IRQ System Function

Contents

Welcome to the Maintenance & Service Guide MSG Using this Guide Before You Begin Preface Locating Additional Information Hard Drive CD or DVD Drive BatteryXL240 XL241 XL242 Display Processor XL247-250 TV-Out XL343 XL344 XL345 Display XL340 XL341 XL342 Display TV-Out XL355 XL356 Display XL346 XL350 XL352 Display Description Front of Unit Internet Zone Buttons and Lights No. Description Front Bezel Components Right Side Components Left Side Components Underneath the Unit Rear Connectors AC Power Requirements Input DimensionsWeight Stand-Alone Battery Pack Li-Ion Pack Vibration Relative Humidity non-condensingAltitude Shock System Interrupts Hardware IRQ System Function System Interrupts Address Hex System I/O Addresses System Function Shipping ConfigurationSystem DMA Hardware DMA System Function Presario 1400 Series Memory Address System Function System Memory Catalog Ratio Brightness Display Dimensions13-in HPA Display 12.1-in 13.0-in Active Area Contrast Dth 13.3-in TFT Display 12.1-in DimensionsWi System Memory Expansion Board Memory Total Memory Memory ExpansionCylinders High/Low Number of Read/Write Heads Transfer Rate At Logical ConfigurationHard Drive Drive Type 12.0 GB 18.0 GB Capacity Per Drive Seek Times Access Time Dimensions Weight Rotational Speed Typical Transfer RateSpin Up Time Data Buffer Capacity CD/DVD Drive 24x CD-ROM Operating Lifetime Temperature RequirementsEnergy Universal Serial Bus Pin Assignments External Monitor External Monitor RJ-45 NIC RJ-45 NIC AC Adapter Video Battery and Power Management Full Off Activation Standby Mode Hibernation Mode Off ModeIndicators Automatic Portable/Laptop Power Scheme AC Power Battery Power Always OnHome/Office Desk Default Alarm Settings Low Battery Critical Battery Alarms Increasing Battery Pack Operating Time Maximizing the Energy Stored Battery Charge Time Li-ion Battery Pack Battery Power Disposing of a Used Battery Pack Troubleshooting Run the Computer Checkup Test Preliminary Steps Clearing the Power-On Password Recommended Action Power-On Self-Test PostPower-On Self-Test Messages 102-System Board Failure System Options Not Set XX000YZZ 201-Memory Error Probable Cause Run Computer Checkup Test View System Information Inspect Compaq Diagnostics Computer Checkup Test ROM View System Information Inspect Diagnostic Error Codes Error Code Memory, Keyboard, and Parallel Printer Test Error Codes Description Recommended Action Diskette Drive and Serial Test Error Codes Hard Drive Test Error Codes Video Test Error Codes Video Test Error Codes 2458-xx 2468-xx 2477-xx 2478-xx 2480-xx DVD or CD Drive Test Error Codes TouchPad/Pointing Device Interface Test Error Codes Troubleshooting without Diagnostics Before Replacing Parts Problem Solving Audio Problems Probable Cause Solution Solving Minor Problems Solving Battery Pack/Gauge Problems Presario 1400 Series Solving DVD or CD Drive Problems Solving Battery Pack/Gauge Problems Probable Cause Solution Solving Diskette Drive Problems Solving Diskette Drive Problems Solving Display Problems Solving Display Problems Backlight brightness cannot be adjusted with Fn+F7 or Fn+F8 Solving Display Problems Probable Cause Solution Solving Hard Drive Problems Solving Hard Drive Problems Solving Hardware Installation Problems Solving Hardware Installation Problems Solving Keyboard/Numeric Keypad Problems Solving Keyboard and Numeric Keypad Problems Problem Solving Memory Problems Probable Cause Solution Solving Memory Problems Problem Solving PC Card Problems Solving Power Problems Probable Cause Solving Power Problems Solving Printer Problems Solving Printer Problems Solving TouchPad/Pointing Device Problems Solving TouchPad/Pointing Device Problems Serial Number Removal Sequence Generating Static Electrostatic Discharge Tool and Software Requirements Service ConsiderationsScrews Presario 1400 Series Battery Pack Presario 1400 Series Cosmetic Side Covers Speaker Port Covers Modem/Memory Access Door Modem or Network/Modem Combo Card Extended Memory Card DVD, CD-Rom, or CD-RW Drive Presario 1400 Series Hard Drive Presario 1400 Series Service Removable Parts Electrostatic Discharge Service Considerations Cables Cables and ConnectorsCable Illustrations ZIF Connectors Connectors and Plastic Parts Speaker Assembly Cable Keyboard Ribbon Cable Internet Button Board Cover Presario 1400 Series Keyboard PCA Button Board Presario 1400 Series Display Panel Assembly MP3 Zone Cover Heatspreader with Fan Assembly Fan Assembly Palmrest Cover with TouchPad Upper CPU Presario 1400 Series Modem/Modem-NIC Combo Cable Presario 1400 Series MP3 Audio Board Presario 1400 Series Speaker Assembly Presario 1400 Series System Board Presario 1400 Series Presario 1400 Series Processor Presario 1400 Series Replacing the Processor Parts Catalog System Unit Boards Display Assembly Spare Part Items No. Description Mass Storage Devices Spare Part Items Description Miscellaneous Hardware Kit Miscellaneous Hardware Kit Spare Part Items Description Miscellaneous Parts Build-to-Order Models Build-to-Order Models Spare Part Description Alphabetical Spares ListingPart Applicable Models Availability Number Part Number Part Applicable Models Number 218497-001