HP 18XL381 Memory Address System Function, System Expansion Total Memory Board Memory Memory

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Presario 1800/1800T Series

Models: XL280, XL380, XL381,

and XL390

System Memory Catalog

Memory Address		System Function
000A0000h-000AFFFFh		RAGE Mobility-M1 AGP (English)

000B0000h-000BFFFFh		RAGE Mobility-M1 AGP (English)

000C0000h-000CFFFFh		RAGE Mobility-M1 AGP (English)

04000000h-04000FFFh		Texas Instruments PCI-1410 CardBus Controller

04001000h-04001FFFh		Intel® PRO/100 S Mobile LAN on Motherboard
04100000h-F041FFFFh		Intel® PRO/100 S Mobile LAN on Motherboard
F4101000h-F41010FFh		Lucent 56K V.90 PCI DF Modem

F4200000h-F4200FFFh		RAGE Mobility-M3 AGP (English)

F4200000h-F5FFFFFFh		Intel® 82443BX Pentium® ll Processor to AGP Controller
F4220000h-F423FFFFh		RAGE Mobility AGP (English)

F5000000h-F5FFFFFFh		RAGE Mobility AGP (English)

F8000000h-FBFFFFFFh		Intel® 82443BX Pentium® ll Processor to PCI bridge
FFF80000h-FFFFFFFFh		Motherboard Resources

Memory Expansion

System Expansion Total

Memory Board Memory Memory

64MB

64MB

64MB

64MB

64MB

None

32MB

64MB

128MB

256MB

64MB

96MB

128MB

192MB

320MB

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES

SPECIFICATIONS 5

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Contents Welcome to the Maintenance & Service Guide MSG Using this Guide Before You Begin Preface Serial Number Product Description Features XL381 XL390 Display BatteryProcessor Hard Drive# Description # Description Front of UnitDescription # DescriptionModel XL3xx Front Bezel Components Left-Side Components Right-Side Components Underneath the Unit Rear Connectors Optional QuikDock Specification Metric SpecificationsHardware System Function System InterruptsSystem I/O Addresses Address System Function Shipping ConfigurationPresario 1800/1800T Series System Expansion Total Memory Board Memory Memory Memory Address System FunctionDisplay SpecificationValueSpecification 15.0 GB 20.0 GB 32.0 GB Specification 10.0 GB 12.0 GBSpecification Specification AHr Li-ionPin Assignments Pin SignalTV-Out Composite Video Connector Modem Connector Game Port Connector QuikDock Connector Battery and Power Management Indicators Standby Mode Hibernation Mode Off Mode AutomaticActivation ManualPower Scheme Always On AC Power Battery PowerPortable Home Laptop Office Desk Setting Low Battery Critical Battery Default Alarm SettingsRebooting After a Lockup Increasing Battery Pack Operating Time Li-ion Enhanced Charge Time Battery Pack Conditioning a Battery PackTroubleshooting Preliminary Steps Clearing the Power-On Password Post Error Messages System Board Failure Probable Cause Recommended ActionSystem Options Not Set Probable Cause Keyboard Error Recommended Action XX000YZZ 201-Memory Error Probable CauseKeyboard or System Unit Error Probable Cause Diskette Controller Error Probable CauseHard Drive Controller Probable Cause Primary Hard Drive 0 Failure Probable CauseCheckup Test View System Information Inspect Diagnostic Error Codes Processor Test Error Codes Error Code Description Recommended ActionMemory Test Error Codes Keyboard Test Error Codes Serial Test Error Codes Hard Drive Test Error Codes Description Recommended Action Video Test Error Codes Presario 1800/1800T Series Audio Test Error Codes Presario 1800/1800T Series Before Replacing Parts Troubleshooting without DiagnosticsAudio Solutions Solving Minor ProblemsBattery Pack/Gauge Solutions Audio Problem Probable Cause SolutionReplace the battery pack Replace the RTC battery Presario 1800/1800T Series Diskette Drive Solutions CD and DVD Drive SolutionsCD or DVD Drive Problem Probable Cause Solutions Diskette Drive Problem Probable Cause SolutionsDisplay Solutions Display Problem Probable Cause SolutionsUsing Fn+F7 or Fn+F8 Replace the display assembly Replace the system board Backlight brightness cannot be adjusted with Fn+F7 or Fn+F8 Hardware Installation Solutions Hard Drive SolutionsHard Drive Problem Probable Cause Solutions Hardware Installation Problem Probable Cause SolutionsMemory Solutions Keyboard/Numeric Keypad SolutionsKeyboard/Numeric Keypad Problem Probable Cause Solutions Memory Problem Probable Cause SolutionsPC Card Solutions PC Card Problem Probable Cause SolutionsPC Card sound effects PC card modem or fax card does not work Power Problem Probable Cause Solutions Power SolutionsPrinter Problem Probable Cause Solutions Printer SolutionsTouchPad/Pointing Device Problem Probable Cause Solutions TouchPad/Pointing Device SolutionsShipping Preparation Contacting Compaq SupportRemoval & Replacement Required Tools ZIF Connector Cables Diskette Drive Ribbon Cable Keyboard Ribbon Cable Hard Drive Ribbon CableCD/DVD Ribbon Cable CD/DVD Ribbon Cable Keyboard Ribbon Cable Diskette Drive Ribbon CableSpeaker Assembly Cable Keyboard Ribbon Cable CD/DVD Ribbon Cable Speaker Assembly CablePreparing the Notebook for Disassembly QuikDock Removal ProceduresBattery Pack Palmrest Cover with TouchPad Presario 1800/1800T Series Presario 1800/1800T Series Keyboard Button Board Cover Presario 1800/1800T Series Presario 1800/1800T Series Presario 1800/1800T Series Internet Switch Board Presario 1800/1800T Series Heat Sink Heatspreader Modem Disconnect the hard drive data cable Hard DrivePresario 1800/1800T Series Presario 1800/1800T Series LCD DisqPlay Module Processor Presario 1800/1800T Series CD, CD-RW, or DVD Drive Presario 1800/1800T Series Presario 1800/1800T Series Display Panel Assembly Presario 1800/1800T Series Presario 1800/1800T Series Upper CPU Cover Fan Assembly Presario 1800/1800T Series Real Time Clock RTC Battery Presario 1800/1800T Series Diskette Drive Presario 1800/1800T Series Voltage Converter Board Speaker Assembly Presario 1800/1800T Series System Board Presario 1800/1800T Series Presario 1800/1800T Series Presario 1800/1800T Series To replace the system board, reverse these procedures Memory Module Presario 1800/1800T Series Spare Part Items Parts CatalogBoards Spare Part Item Display AssemblyMass-Storage Devices Miscellaneous Cable Kit Miscellaneous Plastics Kit Miscellaneous Parts Part Numbers & Availability Alphabetical Spares Listing Disqplay Module, See LCD Indicator Module SO Dimm 171815-001 All 170835-004 All US platforms 191298-003

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