HP Book 900 manual Removing the Bios IC Reassembly Notes

Page 45

IC removal tool

Figure 2-14. Removing the BIOS IC

Reassembly Notes

Caution

∙Align the IC with the slot in the socket. The IC is keyed to fit correctly. If you insert the IC backward, the IC or motherboard could be damaged.

∙Press down firmly on the IC with your thumb to ensure a proper connection.

∙Fold the keyboard back into place. Slip its front tabs into the slots, then snap the back edge into place.

∙Push the keyboard toward the back as you tighten the two screws. This helps engage the tab at the back-center of the keyboard.

∙Reprogram the IC by programming the BIOS—see the note above.

HP OmniBook 900

Removal and Replacement 2-25

Image 45

Contents HP OmniBook Edition History Contents Tables FiguresHP OmniBook Sources of OmniBook Information IntroductionSource Address or NumberOmniBook 900 Models Product Comparisons Processor OmniBookMemory Display OmniBook Front View Features and OperationTurning the OmniBook On and Off Activating Power ModesChecking the Status of the OmniBook Main Status Lights MotherboardKeyboard Status Lights Motherboard Resetting the OmniBook Using Fn Hot KeysFn Hot Keys Hot KeySystem Resources System InterruptsSystem Memory 10. DMA Channels System Input/Output Addresses 100-3FF11. OmniBook 900 Specifications SpecificationsOnline Reference Guide 12. OmniBook 900 Accessories Accessory Description OmniBook Compatibility Docks900B 900† 4150 2100/7100 Internal Design Replaceable Module DiagramDocking port 13. Functional StructureRemoval Cross-Reference Removal and ReplacementRecommended Screw Torques Required EquipmentScrew Thread Size M1.4 Torque kgfcm Torque lbfinRemoval Procedure Removing the BatteryInstalling a Battery Panel Reassembly NotesRemoving a RAM Board RAM Board Replacement Part NumbersPart Number Exchange Part NumberHard Disk Drive Replacement Part Numbers Removing the Hard Disk DriveExchange Information Removing the Hard Disk Drive Creating a Hibernate Partition Replacing Small Parts Replacement ProcedureReplacing Small Parts User-Replaceable Cover, keyboard screw Door, hard disk FootDisplay Component Compatibility Removing the LCD ModuleRemoving the LCD Module Removing the Keyboard Removing the Keyboard Reassembly Notes Removing the CPU Module Removing the CPU Module Reassembly Notes Removing the Display Assembly Removing the Display Assembly Reassembly Notes Removing the Top Case 10. Removing the Top Case Reassembly Notes Removing the Motherboard or Bottom Case 11. Removing the Motherboard Reassembly Notes Installing a New Serial Number Label 13. Example of Serial Number Label Removing the Bios IC14. Removing the Bios IC Reassembly Notes Removing Other Components Hinge Latch, display LCD module Removal Procedures Cable, display power Case, displayRemoving Display Components Component Bezel, display Cable, display flex10. Removing Bottom Case Components Removing Top Case ComponentsComponent Heatsink Support, hinge left Removal ProceduresComponent Support, hinge right Removal Procedures Troubleshooting and Diagnostics Troubleshooting the Problem TroubleshootingVerifying the Repair Scope of Diagnostic Tools Suggestions for TroubleshootingTroubleshooting Suggestions SymptomStartup Call Center Suggestions Power/BatteryRepair Center Likely Causes Repair Center CommentsWhite display Erratic display Pointing stick Call Center Suggestions Symptom KeyboardSerial/Parallel Miscellaneous AC adapterAccessories Diagnostic Tools OmniBook Diagnostic ProgramCreating a Diagnostic Floppy Disk Serial number Audio device Running the Diagnostic TestCode Suggestions System Tests OmniBook Diagnostic Error CodesHard Disk Tests Video Tests Acpi Tests Power-On Self-Test Post Terminal-Error Beep CodesPost Messages Message Description System battery is dead Replace and run SetupEntering Setup Lower slot PCT450 -b69 -0 Sycard PCCtest 450 CardBus Card OptionalUninstalling the DMI Package Installing the DMI PackageUsing the DMI Interface Desktop Management Interface DMIContents of the DMI Package Running the Bios Setup Utility Bios Setup UtilityBios Setup Menus and Parameters Main Menu DefaultSecurity Menu Default System Devices Menu DefaultBoot Menu Default Power MenuOB 900B On OB 900† Off Exit MenuReplaceable Parts Exploded View OmniBook Replaceable Parts Exchange User Part Number Repl IC, BiosExchange Part Number User Repl OmniBook 900B 900† Display Components Accessory Replaceable Parts Assembly-Component BreakdownReplaceable Parts HP OmniBook Part Number Reference Part Number ExchangeDescription User OmniBook Repl 900B 900† Yes HP OmniBook Replaceable Parts Replaceable Parts HP OmniBook Repl B 900† Part Number Exchange Description User OmniBookPage Reference Information Password Removal PolicyReference Information HP OmniBook Hewlett-Packard Display Quality StatementType of Imperfection OmniBook 900 LCD Guidelines TFTElectrical Imperfections Mechanical ImperfectionsReference Information HP OmniBook Obsolete Repair Parts Obsolete PartsObsolete New Description Part Number Page Page Part Number F1770-90001