HP 800 G1 manual Password Security and Resetting, Cmos

Page 151

11Password Security and Resetting

CMOS

This computer supports security password features, which can be established through the Computer Setup Utilities menu.

This computer supports two security password features that are established through the Computer Setup Utilities menu: setup password and power-on password. When you establish only a setup password, any user can access all the information on the computer except Computer Setup. When you establish only a power-on password, the power-on password is required to access Computer Setup and any other information on the computer. When you establish both passwords, only the setup password will give you access to Computer Setup.

When both passwords are set, the setup password can also be used in place of the power-on password as an override to log in to the computer. This is a useful feature for a network administrator.

If you forget the password for the computer, you can clear that password so you can gain access to the information on the computer by resetting the password jumper.

CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important to back up the computer CMOS settings before resetting them in case they are needed later. Back up is easily done through Computer Setup. See Computer Setup (F10) Utility on page 64 for information.

CAUTION: If you enable the stringent security feature in Computer Setup and you forget the setup password or the power-on password, the computer is inaccessible and can no longer be used.

Enabling the stringent password disables the ability to reset the password by moving the jumper on the system board.

If you lose or forget the password, the system board must be replaced. This scenario is not covered under warranty.

To prevent the computer from becoming permanently unusable, record your configured setup password or power-on password in a safe place away from your computer. Without these passwords, the computer cannot be unlocked.

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Contents Maintenance & Service Guide Product notice Maintenance & Service GuideIii Safety warning noticeIv Safety warning notice Table of contents  Misc parts Cables Drives Sequential Part Number ListingDownloading HP PC Hardware Diagnostics to a USB device Why run HP PC Hardware Diagnostics UefiViii Backup and Recovery 122Standard configuration features Product featuresFront panel components Product featuresRear panel components EliteDesk Rear panel components ProDesk Serial number location Activating and customizing the software in Windows Activating and Customizing the SoftwareActivating the Windows operating system Installing or upgrading device drivers Downloading Windows 7 updatesCustomizing the monitor display Click Settings Change PC Settings Downloading Windows 8 updatesElectrostatic discharge information Preventing electrostatic damage to equipment Generating staticRelative Humidity Event 55% 40% 10% Static Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Recommended materials and equipmentOperating guidelines Routine care General cleaning safety precautionsCleaning the Computer Case Cleaning the keyboardTools and software Requirements Service considerationsCleaning the monitor Cleaning the mouseHard Drives Cables and connectorsDiagnostics software Tamper-resistant T-15 wrench ScrewsSerial ATA Hard Drive Characteristics Lithium coin cell batterySata hard drives Sata data cable Sata hard drive cablesSmart ATA drives Cable managementIllustrated parts catalog Illustrated parts catalogDescription Spare part number Stand Power supply, 65WKeyboards Item Description Spare part number Misc partsDescription Spare part number Wlan modules CablesMouse Sequential Part Number Listing DrivesSpare part Description Number Thermal material Illustrated parts catalog Preparing to disassemble the computer Removal and Replacement ProceduresDescription Spare part number Access panel 768428-001 Access panelChanging from desktop to tower configuration Description Spare part number Hard drivePage Page Page Description Spare part number Speaker 762420-001 SpeakerPage Front bezel SODIMMs MemoryDDR3-SDRAM SODIMMs Description System Board Label Socket Color Populating Sodimm socketsInstalling SODIMMs Page Page Replacing the battery Type Type Description Spare part number Heat sink 768426-001 Heat sinkProcessor Carefully lift the processor from the socket Processor Description Spare part number Fan 768424-001 FanDrive cage Page Wlan module Page Solid-State Drive Page External connection antennas select models only Page Page Removal and Replacement Procedures System boards for use in ProDesk 600 models System boardUpdating Smbios Information Setup Field Name Comment Label System ID SetupDescription Spare part number Wlan antennas 768432-001 Wlan antennasPage Page Page Computer Setup F10 Utilities Computer Setup F10 UtilityComputer Setup F10 Utilities Using Computer Setup F10 UtilitiesComputer Setup F10 Utility Computer Setup-FileConfiguration Computer Setup-StorageOption Description Device Storage Options Sata Emulation Removable Media BootBoot Order Shortcut to Temporarily Override Boot OrderComputer Setup-Security System IDs Network BootMaster Boot Record Slot SecuritySystem Security DriveLock Security Secure BootManagement Computer Setup-PowerOption Description OS Power Hardware PowerOption Heading Power-On Options Computer Setup-AdvancedDevice Options Bios Power-OnOnboard Devices Bus OptionsPolicy Connected BiosOperations Option ROM LaunchEthernet Connection Recovering the Configuration SettingsUpdate Bios via NetworkWhy run HP PC Hardware Diagnostics Uefi HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Uefi Downloading HP PC Hardware Diagnostics to a USB device Safety and Comfort Before You Call for Technical Support Troubleshooting Without DiagnosticsHelpful Hints Page Select Control Panel Solving General Problems1Solving General Problems Computer date and time display is incorrect Cause SolutionAdvanced Device Options There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or rear cover Cause Solution Poor performance Cause SolutionUnder Windows System, click Run Go to Start All Programs AccessoriesRun All apps iconProcessor fan or other system fan spins. If the fan 2Solving Power Problems Solving Power ProblemsPower supply shuts down intermittently Cause Solution Some models, is set to the appropriate voltage. Proper 3Solving Hard Drive Problems Solving Hard Drive ProblemsComputer will not boot from hard drive Cause Solution Advanced Power-On OptionsNonsystem disk/NTLDR missing message Cause Solution Storage Boot Order listComputer seems to be locked up Cause Solution Device Configuration4Solving Media Card Reader Problems Solving Media Card Reader ProblemsCan not write to the media card Cause Solution Explorer from the list of applications. Expand Computer Select Adjust screen resolution Solving Display Problems5Solving Display Problems Blank screen no video Cause SolutionSolving Display Problems Image is not centered Cause Solution Dim characters Cause SolutionSelect ImageControl/ Horizontal Position or Vertical Out of Range displays on screen Cause Solution Support Certain typed symbols do not appear correct Cause SolutionDevice Security System Audio Solving Audio Problems6Solving Audio Problems Sound cuts in and out Cause SolutionLine-in jack is not functioning properly Cause Solution 100 Troubleshooting Without DiagnosticsControl Panel, and then select Device Manager 7Solving Printer Problems Solving Printer ProblemsControl Panel , and then select Device Manager Printer will not print Cause Solution 102 Troubleshooting Without DiagnosticsPrinter will not turn on Cause Solution Printer prints garbled information Cause SolutionSolving Keyboard and Mouse Problems 103 Solving Keyboard and Mouse Problems8Solving Keyboard Problems 9Solving Mouse Problems 104 Troubleshooting Without DiagnosticsSecurity USB Security Solving Hardware Installation ProblemsSolving Hardware Installation Problems 105 10Solving Hardware Installation ProblemsComputer will not start Cause Solution 106 Troubleshooting Without Diagnostics11Solving Network Problems Solving Network ProblemsWake-on-LAN feature is not functioning Cause Solution 108 Troubleshooting Without Diagnostics Manager Network status link light never flashes Cause SolutionDiagnostics reports a failure Cause Solution 110 Troubleshooting Without DiagnosticsNew network card will not boot Cause Solution Solving Memory ProblemsMemory count during Post is wrong Cause Solution 112 Troubleshooting Without Diagnostics12Solving Memory Problems Out of memory error Cause SolutionCause Solution Solving Processor Problems13Solving Processor Problems Poor performance is experienced Cause SolutionSecurity Network Boot Solving CD-ROM and DVD Problems114 Troubleshooting Without Diagnostics 14Solving CD-ROM and DVD ProblemsCannot eject compact disc tray-load unit Cause Solution Movie will not play in the DVD drive Cause SolutionUSB flash drive not found identified Cause Solution Solving USB Flash Drive Problems116 Troubleshooting Without Diagnostics 15Solving USB Flash Drive ProblemsSolving Front Panel Component Problems 117 Solving Front Panel Component ProblemsAre set to Enabled in Security USB Security Select Start Control Panel Solving Internet Access Problems118 Troubleshooting Without Diagnostics Unable to connect to the Internet Cause SolutionROM issue Post error has occurred Solving Software ProblemsSystem files may be damaged 120 Troubleshooting Without DiagnosticsContacting Customer Support Restoring and recovering in Windows Backup and RecoverySystem Restore Restoring and recovering in Windows 7 System RecoverySystem Recovery when Windows is not responding Creating recovery media Using recovery media Backing up your information Backup and recovery in WindowsUsing the Windows recovery tools Performing a system recoveryFollow the on-screen instructions Using f11 recovery toolsPage Post Error Messages Control panel message Description Recommended action Post Error MessagesPost Numeric Codes and Text Messages 1Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Verify monitor is attached and turned Drivelock Security. For each listed Change Storage Storage OptionsSata Emulation to IDE, and select File Save Changes and Exit. ReenterPost Error Messages If the error persists, update to the latest Bios version and ME firmware version Keyboard failure while Network Server Possible Cause Recommended Action Interpreting Post diagnostic front panel LEDs 2Diagnostic front panel LEDs and audible codes ActivityFor systems with integrated graphics, replace Install a TXT capable processor Cmos Password Security and ResettingPassword Security and Resetting Cmos Establishing a Setup or Power-on passwordResetting the Setup and Power-on password Clearing and resetting the Cmos Cmos button Locate, press, and hold the Cmos button in for five secondsJapanese Power Cord Requirements Power Cord Set RequirementsGeneral requirements Country-specific requirements 149 Country-specific requirementsCountry Accrediting Agency Appendix B Statement of Volatility-HP EliteDesk 800 G1 Statement of Volatility-HP EliteDesk 800 G1Page Appendix C Statement of Volatility-HP ProDesk 600 G1 Statement of Volatility-HP ProDesk 600 G1Page Temperature Range SpecificationsAppendix D Specifications Approximate WeightMaximum Altitude unpressurized Power SupplyMax Operating Power 155Cmos IndexPreparing to disassemble Hard drive ResettingConnectors on system board Fan Front bezel Heat sink
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