HP 550 manual System interrupt specifications, Hardware IRQ System function

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System interrupt specifications

Hardware IRQ	System function

IRQ0	System timer

IRQ1	Standard 101-/102-Key or Microsoft® Natural Keyboard

IRQ2	Cascaded

IRQ3	Intel 82801DB/DBM USB2 Enhanced Host Controller—24CD

IRQ4	COM1

IRQ5*	Conexant AC—Link Audio Intel 82801DB/DBM SMBus Controller—24C3 Data Fax
	Modem with SmartCP

IRQ6	Diskette drive

IRQ7*	Parallel port

IRQ8	System CMOS/real-time clock

IRQ9*	Microsoft ACPI-compliant system

IRQ10*	Intel USB UHCI controller—24C2
	Intel 82852/82855 GM/GME Graphic Controller
	Realtek RTL8139 Family PCI Fast Ethernet Controller

IRQ11	Intel USB EHCI controller—24CD
	Intel USB UHCI controller—24C4
	Intel USB UHCI controller—24C7
	Intel Pro/Wireless 2200BG
	TI OHCI 1394 host controller
	TI PCI1410 CardBus controller

IRQ12	Synaptics PS/2 TouchPad

IRQ13	Numeric data processor

IRQ14	Primary IDE channel

IRQ15	Secondary IDE channel

*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.

NOTE: ExpressCards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4.

94 Chapter 6 Specifications

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Contents HP 550 Notebook PC Page Safety warning notice Iv Safety warning notice Table of contents Computer Setup Screw listing Recycling Product description Hard drives Optical drivesAudio Wireless Integrated Wlan options by way of wireless moduleDiskette drive ModemPorts Power requirementsOperating system Preinstalled Keyboard/pointingRestore media Serviceability End-user replaceable partsTouchPad External component identificationTop components Component FunctionButtons, lights, and speaker Top componentsKeys Fn keyFront components Right-side components Left-side components Bottom components Wireless antennae select models only Illustrated parts catalog Serial number locationComputer major components Computer major componentsDisplay assembly internal components Description Spare part numberKeyboards Optical drive connector board FanIntel Core2 Duo processors RTC batteryBattery Intel Celeron M processorsIntel 802.11a/b/g Wlan modules Intel 802.11b/g Wlan module for use in ThailandBroadcom 802.11b/g Wlan modules Illustrated parts catalog Plastics Kit Item Description Spare part number Plastics Kit 456614-001Cable Kit Item Description Spare part number Cable Kit 456594-001Mass storage devices Miscellaneous parts Sequential part number listing Screw KitSpare part Description Number Ukraine, the United Kingdom, and Uzbekistan Zaire, Zambia, and Zimbabwe Illustrated parts catalog Sequential part number listing Pata Service considerations Removal and replacement proceduresPreliminary replacement requirements Tools requiredCables and connectors Grounding guidelines Typical electrostatic voltage levelsEvent 10% 40% 55% Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelUnknown user password Component replacement procedures Serial numberComputer feet Battery Hard drive Page Wlan module Description Spare part number Page Memory module Optical drive Page Switch cover Page Keyboard For use Spare part numberPage Page Speaker Description Spare part number Speaker 456593-001Display lid switch module Display assembly Page Page Page Page Top cover Description Spare part number Top cover 495399-001Page Page TouchPad board and TouchPad button board Page Bluetooth module System board Page Page Page Fan Description Spare part number Fan 431312-001Page Heat sink Page Processor Page Modem module Page RTC battery Description Spare part number RTC battery 449137-001ExpressCard assembly Page Computer Setup Starting Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Computer Setup menus File menuSelect To do this Diagnostics menu Security menuSystem Configuration menu DisableSelect Disconnected Specifications Computer specificationsMetric Inch, Wxga display specifications Hard drive specifications 250-GB 160-GB 120-GBApplicable disc Read Access timeTransfer mode WriteDVD/CD-RW Combo Drive specifications Applicable disc Read WriteSystem DMA specifications Hardware DMA System functionSystem interrupt specifications Hardware IRQ System functionSystem I/O address specifications Address hex System function shipping configurationVGA System memory map specifications Size Memory address System functionScrew listing Phillips PM2.0×5.0 captive screw Color Quantity Length Thread Head diameter BlackPhillips PM2.5×12.0 captive screw Color Quantity Length Thread Head diameter Silver 12.0 mmPhillips PM3.0×4.0 screw Color Quantity Length Thread Head diameter SilverPhillips PM2.5×4.0 screw Slotted Torx ST8M2.5×7.0 screw Page Phillips PM2.0×4.0 screw Page Torx T8M2.5×9.0 screw Torx T8M2.5×3.0 broadhead screw Torx T8M2.5×4.0 screw Page Phillips PM2.0×2.0 broadhead screw Torx T8M2.5×6.0 screw Color Quantity Length Thread Heat width BlackPhillips PM2.0×6.0 screw Torx T8M2.0×4.0 screw Phillips PM2.5×7.0 screw Phillips PM2.5×7.0 captive screw Phillips PM2.5×10.0 captive screw Color Quantity Length Thread Head diameter Silver 10.0 mmPhillips PM2.0×8.0 screw Backup and recovery Backup and recovery in Windows Vista OverviewBacking up your information Performing a recovery Using the Windows recovery toolsUsing f11 Select Repair your computer Backup and Recovery in Windows XP Recovering your information Audio-out headphone Connector pin assignmentsPin Signal Audio-in microphoneExternal monitor RJ-11 modem RJ-45 network Universal Serial BusPower cord set requirements Requirements for all countries and regionsRequirements for specific countries and regions Country/region Accredited agency Applicable note numberBattery RecyclingDisplay Page Page Page Page Page Index Page Page DVD

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