HP ZT1100 manual Clock loses time

Page 83

Symptom

Notebook gets abnormally hot.

Clock loses time.

Call Center:

Suggestions

Always set notebook on a flat surface, so air can flow freely around and underneath.

Make sure air vents are clear.

Check fan and heatsink installation.

Games and other programs that drive CPU usage toward 100% can contribute, as can charging battery.

Plug in AC adapter for 24 hours to charge CMOS battery.

Repair Center: Likely Causes

Fan.

Heatsink.

Motherboard.

Repair Center:

Comments

Check fan and heatsink for proper operation or damage.

HP Pavilion zt1100/xz100 Omnibook xt1000

Troubleshooting and Diagnostics 3-21

Image 83

Contents HP Pavilion zt1100/xz100 Omnibook xt1000 Edition History Contents Figures Tables Address or Number Comments IntroductionSource Pavilion zt1100/xz100 and Omnibook xt1000 Series Models Product InformationDetails Technology CodesTechnology code Product name Front View FeaturesBack View Bottom View Turning the Notebook On and Off Activating Power ModesOperation Main Status Lights Checking the Notebook’s StatusEffect Using Fn Hot KeysFn Hot Keys Hot KeyResetting the Notebook Resetting the NotebookMultimedia Buttons and Status Panel Using the CD or DVD Player selected modelsAudio System Dimensions SpecificationsHardware Specifications Product Information HP Pavilion zt1100/xz100 Omnibook xt1000 Description Accessory New AccessoriesTested Cross-Platform Accessories Internal Design Replaceable Module DiagramComponent Roles Function Bootup Processor Memory Components UsedInfrared Wireless Docking PC card Functional StructurePage Removal Cross-Reference Removal and ReplacementDisassembly Flow Disassembly FlowchartTorque cm-kgf Torque in-lbf Required EquipmentRecommended Screw Torques Screw Thread SizeRemoval Procedure Removing the BatteryReleasing the Plug-in Module Removing a Plug-In ModuleRemoving the Hard Disk Drive Removing the Hard Disk DriveRemoving the Hard Disk Tray Reassembly Notes To recover the factory software installation Recovering and Reinstalling SoftwareRemoving the Keyboard Cover Retaining Screws Removing the Keyboard CoverRemoving the Keyboard Cover Reassembly Notes Loosening the Keyboard Retaining Screws Removing the KeyboardDisconnecting the Keyboard Reassembly Notes Removing an Expansion Sdram Module Removing an Sdram ModuleRemoving the System Sdram Module 11. Installing an Expansion Sdram ModulePart Cover, mini-PCI Cover, expansion Replacement ProcedureReplacing Small Parts Replacing Small Parts User-ReplaceableRemoving the Mini-PCI Card HP Authorized Service Providers Only13. Removing the Mini-PCI Card Reassembly Notes 14. Removing the Display Removing the Display Assembly15. Removing the Display Reassembly Notes Removing Display Assembly Components 16. Removing Display Assembly Components Reassembly Notes Removing the Fan and Heatsink 17. Removing the Fan and Heatsink 18. Installing a New Thermal Pad Removing the CPU Module 19. Removing the CPU Module Reassembly Notes Removing the Top Case 20. Removing the Top Case Retaining Screws 21. Removing the Top Case Reassembly Notes Removing the Hinge Saddles 22. Removing the Hinge Saddles Reassembly Notes Removing the Motherboard or Bottom Case When Installing a New Motherboard23. Removing the Motherboard Reassembly Procedure Reinstalling the Motherboard Replacing the Bottom Case Installation Procedure26. Example of Serial Number Label Installing a New Serial Number LabelAdditional Steps Removing Notebook ComponentsRemoving Notebook Components PCA, USB Additional Steps Page Troubleshooting and Diagnostics Basic Troubleshooting Steps TroubleshootingChecking for Customer Abuse Page Troubleshooting Suggestions Suggestions for TroubleshootingScope of Diagnostic Tools Repair Center Likely Causes Power/BatteryCall Center Suggestions Battery does not charge AC adapter does not power notebook Repair Center Likely Causes Repair Center Comments Standby/resumeDark display, no light White display Erratic display Back up drive immediately Was notebook or drive dropped? Files are corrupted Keyboard Call Center Suggestions General problems Click button does not work Modem Mini-PCI card. Motherboard Printing One-Touch button problemsUse Windows Search to locate computer on network Wireless Video file playback Symptom PC cardPage Clock loses time Updating e-Diagtools Diagnostic ToolsDiagtools Diagnostic Program Running e-Diagtools Parallel Loopback Connector Interpreting the Results Message Power-On Self-TestInsyde MobilePRO Bios Post Beep Codes and Messages Beep CodeSlot Pcmcia PC Card 16-bit test CardBus 32-bit test Sycard PCCtest CommandsSycard PCCtest 450/460 CardBus Card Optional Zt1100/xz100/xt1000 technology code IBBios Configuration Menus and Parameters Bios Configuration UtilityRunning the Bios configuration utility Exit Menu Updating the Notebook’s BiosSecurity Menu Replaceable Parts Exploded View User Repl Replaceable Parts for the Pavilion zt1100/xz100 SeriesPart Number Exchange Part NumberReplaceable Parts HP Pavilion zt1100/xz100 Omnibook xt1000 Replaceable Parts for the Omnibook xt1000 Series Replaceable Parts HP Pavilion zt1100/xz100 Omnibook xt1000 Description Part Number Exchange User Repl Page Reference Information Password Removal PolicyHewlett-Packard Display Quality Statement Mechanical Imperfections TFT LCD Guidelines 14.1/15.0-in XGAType of Imperfection Electrical Imperfections Imperfections Not AllowedPage Page QJOLVK3ULQWHGLQ7DLZDQ