Manuals / HP / Computer Equipment / Laptop

HP C720TU, C721TU, C725BR, C718TU, C720BR, C717TU System I/O address specifications, I/O address hex

Models: C779TU C798TU C754CA C757LA C720TU

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I/O address (hex)	System function (shipping configuration)

220 - 22F	Entertainment audio

230 - 26D	Unused

26E - 26	Unused

278 - 27F	Unused

280 - 2AB	Unused

2A0 - 2A7	Unused

2A8 - 2E7	Unused

2E8 - 2EF	Reserved serial port

2F0 - 2F7	Unused

2F8 - 2FF	Infrared port

300 - 31F	Unused

320 - 36F	Unused

370 - 377	Secondary diskette drive controller

378 - 37F	Parallel port (LPT1/default)

380 - 387	Unused

388 - 38B	FM synthesizer—OPL3

38C - 3AF	Unused

3B0 - 3BB	VGA

3BC - 3BF	Reserved (parallel port/no EPP support)

3C0 - 3DF	VGA

3E0 - 3E1	PC Card controller in CPU

3E2 - 3E3	Unused

3E8 - 3EF	Internal modem

3F0 - 3F7	“A” diskette controller

3F8 - 3FF	Serial port (COM1/default)

CF8 - CFB	PCI configuration index register (PCIDIVO-1)

CFC - CFF	PCI configuration data register (PCIDIVO-1)

System I/O address specifications 95

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Image 103

HP C720TU, C721TU, C725BR, C718TU System I/O address specifications, I/O address hex, System function shipping configuration

Contents

HP G7000 Notebook PC and Compaq Presario C700 Notebook PC Maintenance and Service GuideCopyright 2007 Hewlett-Packard Development Company, L.P Safety warning notice iv Safety warning notice Illustrated parts catalog Table of contentsRemoval and replacement procedures 1 Product description 2 External component identificationSpecifications Setup UtilityScrew listing Backup and recovery9 Connector pin assignments 10 Power cord set requirementsDisplay 11 RecyclingIndex BatteryHP G7000 1 Product descriptionCategory DescriptionCompaq Presario CategoryDescription HP G7000HP G7000 WirelessCategory DescriptionCategory Power requirementsPreinstalled ServiceabilityComponent 2 External component identificationTop components Display componentsDescription Buttons and speakersPanel System and Maintenance Power Componentesc key KeysComponent FunctionComponent LightsDescription Function TouchPadTop components ComponentFunction Front componentsRight-side components ComponentComponent Left-side componentsFunction Function Bottom components12 Chapter 2 External component identification ComponentSerial number location 3 Illustrated parts catalog14 Chapter 3 Illustrated parts catalog Computer major componentsSpare part number Item DescriptionKeyboards Spare part number Power connector cableMemory/wireless module compartment cover DescriptionSpare part number RTC battery6-cell, 2.20-Ah, 47-Wh Li-ion battery DescriptionAtheros AR2425 802.11b/g WLAN module DescriptionSpare part number Broadcom 802.11b/g WLAN module for use in ThailandOptical drives include bezel and bracket Computer major componentsDescription Spare part numberDisplay bezels Display assembly componentsDescription Spare part numberDisplay Screw Kit not illustrated DescriptionSpare part number Camera module cablePlastics Kit Plastics KitItem Description Spare part numberSpare part number Mass storage devicesMass storage devices DescriptionPower cords Miscellaneous partsHP Remote Control Optical wired mouse403811-031 DescriptionSpare part number Hong Kong and the United KingdomDescription Sequential part number listing26 Chapter 3 Illustrated parts catalog Spare partSpare part Description number number 28 Chapter 3 Illustrated parts catalogSpare part Descriptionnumber Sequential part number listingSpare part Descriptionnumber 30 Chapter 3 Illustrated parts catalogSpare part Descriptionnumber Sequential part number listingSpare part DescriptionTools required 4 Removal and replacement proceduresPreliminary replacement requirements Service considerationsDrive handling Cables and connectorsElectrostatic discharge damage Grounding guidelinesWorkstation guidelines Packaging and transporting guidelinesEquipment guidelines Unknown user password Serial number Component replacement proceduresRubber Foot Kit includes 6 base enclosure rubber feet Computer feetDescription Spare part numberBattery Hard drive 6. Remove the hard drive from the hard drive bay Reverse this procedure to reassemble and install the hard drive42 Chapter 4 Removal and replacement procedures 5. Remove the hard drive 3 from the hard drive bayMemory module 44 Chapter 4 Removal and replacement procedures Reverse this procedure to install a memory module4. Remove the module 2 by pulling it away from the slot at an angle Broadcom 802.11a/b/g WLAN modules WLAN moduleDescription Spare part numberAfrican Republic, Chad, Chile, Colombia, Comoros, Congo, Costa Rica, Croatia, Cyprus, Czech Component replacement procedures Reverse this procedure to install a WLAN moduleOptical drive 7. Remove the optical drive bracket Component replacement proceduresKeyboard 3. Open the computer as far as possible Component replacement proceduresRemove the keyboard 2. Turn the computer right-side up, with the front toward you52 Chapter 4 Removal and replacement procedures 7. Remove the keyboard Reverse this procedure to install the keyboardSwitch cover Reverse this procedure to install the switch cover 6. Remove the switch cover54 Chapter 4 Removal and replacement procedures For use only with HP G7000 computer models Display assemblyFor use only with Compaq Presario C700 computer models 56 Chapter 4 Removal and replacement procedures 5. Remove the display assembly2 Two rubber screw covers on the display bezel bottom edge Component replacement procedures3 Eight Phillips PM2.5×7.0 screws 58 Chapter 4 Removal and replacement procedures Component replacement procedures Camera module Component replacement procedures a. Hard drive see Hard drive on page d. Switch cover see Switch cover on pagee. Display assembly see Display assembly on page Top cover3. Turn the computer right-side up, with the front toward you Component replacement proceduresRemove the top cover 1. Turn the computer upside down, with the front toward youe. Display assembly see Display assembly on page Caps lock LED boardf. Top cover see Top cover on page d. Switch cover see Switch cover on pageComponent replacement procedures Reverse the above procedure to install the caps lock LED board3. Remove the caps lock LED board 2 from the top cover a. Hard drive see Hard drive on page USB boardd. Switch cover see Switch cover on page e. Display assembly see Display assembly on pageComponent replacement procedures Reverse this procedure to install the USB board3. Remove the USB board 3 from the base enclosure b. Optical drive see Optical drive on page d. Switch cover see Switch cover on pagee. Display assembly see Display assembly on page a. Hard drive see Hard drive on pageComponent replacement procedures 3. Remove the fan Reverse this procedure to install the fana. Hard drive see Hard drive on page Speakersd. Switch cover see Switch cover on page e. Display assembly see Display assembly on pageComponent replacement procedures Reverse this procedure to install the speakers4. Remove the speakers 4 from the base enclosure a. Hard drive see Hard drive on page System boardd. Switch cover see Switch cover on page e. Display assembly see Display assembly on pageCard reader board see Card reader board on page RTC battery see RTC battery on pageMemory modules see Memory module on page WLAN module see WLAN module on page74 Chapter 4 Removal and replacement procedures Reverse the preceding procedure to install the system boarde. Display assembly see Display assembly on page RTC batteryg. System board see System board on page d. Switch cover see Switch cover on pageReverse this procedure to install the RTC battery 3. Remove the RTC battery76 Chapter 4 Removal and replacement procedures a. Hard drive see Hard drive on page Card reader boardd. Switch cover see Switch cover on page e. Display assembly see Display assembly on page78 Chapter 4 Removal and replacement procedures Reverse the above procedure to install the card reader board4. Remove the card reader board a. Hard drive see Hard drive on page Heat sinkd. Switch cover see Switch cover on page e. Display assembly see Display assembly on page80 Chapter 4 Removal and replacement procedures Reverse this procedure to install the heat sink3. Remove the heat sink a. Hard drive see Hard drive on page Processord. Switch cover see Switch cover on page e. Display assembly see Display assembly on page3. Lift the processor 2 straight up and remove it Reverse this procedure to install the processor82 Chapter 4 Removal and replacement procedures Remove the processora. Hard drive see Hard drive on page Power connector cabled. Switch cover see Switch cover on page e. Display assembly see Display assembly on pageStarting the Setup Utility 5 Setup UtilityChanging the language of the Setup Utility Displaying system information Navigating and selecting in the Setup UtilityRestoring default settings in the Setup Utility 2. Select Exit Load Setup Defaults, and then press enterMain menu Using advanced Setup Utility featuresClosing the Setup Utility Setup Utility menusSelect System Configuration menuDiagnostics menu Security menuInput power 6 SpecificationsComputer specifications DimensionsTotal power consumption 15.4-inch, WSXGA, BrightView display specificationsDimensions Pixel resolution160-GB Hard drive specificationsDimensions Operating temperatureRead DVD±RW and CD-RW Super Multi Double-Layer Combo Drive specificationsAccess time Applicable discSystem function System DMA specificationsSystem memory map specifications Hardware DMAHardware IRQ System interrupt specificationsSystem function I/O address hex System I/O address specifications94 Chapter 6 Specifications System function shipping configurationSystem function shipping configuration System I/O address specificationsI/O address hex 96 Chapter 7 Screw listing 7 Screw listingPhillips PM2.0×5.0 captive screw Where usedLength Phillips PM3.0×3.0 screwColor QuantityLength Black Phillips PM2.0×3.0 screwColor QuantityLength Black Phillips PM2.0×4.0 screwColor QuantityBlack Phillips PM2.0×4.0 screw Quantity Phillips PM2.5×9.0 screwWhere used ColorWhere used Ten screws that secure the top cover to the base enclosure Where used 4 screws that secure the display assembly to the computerPhillips PM2.5×9.0 screw Length Phillips PM2.5×4.0 screwColor QuantityWhere used One screw that secures the USB board to the base enclosure Where used 2 screws that secure the top cover to the base enclosurePhillips PM2.5×4.0 screw Where used One screw that secures the fan to the base enclosure Where used 2 screws that secure the speakers to the base enclosure106 Chapter 7 Screw listing Phillips PM2.5×7.0 screw Length Silver Phillips PM2.0×4.0 screwColor QuantityLength Phillips PM2.5×6.0 captive screwColor QuantityBacking up your information 8 Backup and recoveryRecovering system information When to back upCreate a system restore point Using system restore pointsBackup suggestions When to create restore points112 Chapter 8 Backup and recovery 3. Click Recovery disc creation, and then click Next Creating recovery discsRestore to a previous date and time 1. Select Start All Programs Recovery Manager Recovery ManagerSelect Start All Programs Recovery Manager Recovery Manager Performing a recoveryRecovering from the recovery discs Recovering from the partition on the hard driveSignal 9 Connector pin assignmentsAudio-out headphone Audio-in microphone116 Chapter 9 Connector pin assignments External monitorSignal Signal RJ-11 modemRJ-45 network SignalSignal S-Video-outUniversal Serial Bus 118 Chapter 9 Connector pin assignmentsRequirements for all countries or regions 10 Power cord set requirementsAccredited agency Requirements for specific countries or regions120 Chapter 10 Power cord set requirements Country/region11 Recycling BatteryDisplay 3. Remove the display bezel Perform the following steps to disassemble the display assembly122 Chapter 11 Recycling 7. Turn the display panel assembly upside down 6. Remove the display panel assembly 2 from the display enclosureDisplay 14. Turn the display panel right-side up 10. Remove the display panel frame 2 from the display panel12. Lift the top edge of the backlight cover 2 and swing it outward 13. Remove the backlight cover17. Remove the backlight frame from the display panel 16. Turn the display panel upside downDisplay 23. Remove the LCD panel 24. Recycle the LCD panel and backlight 18. Remove the backlight from the backlight frame19. Disconnect the display cable 1 from the LCD panel 21. Release the LCD panel 3 from the display rear panelIndex key components function keysleft-side components Page system DMA contentsstatic-shielding materials S-Video-out jack