HP dc7900 manual Cmos

Page 67

BPassword 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 the Computer Setup (F10) Utility Guide for information on backing up the CMOS settings.

ENWW

61

Image 67
Contents Troubleshooting Guide Troubleshooting Guide Iii Iv About This Book Table of contents Accessing DPS Through Computer Setup Solving Software Problems Contacting Customer SupportHP Insight Diagnostics HP Insight DiagnosticsSurvey Tab Test Tab Log Tab Click the Download button Protecting the SoftwareProtecting the Software HP Backup and Recovery Manager Safety and Comfort Safety and Comfort Before You Call for Technical SupportHelpful Hints Helpful Hints 1Solving General Problems Solving General ProblemsComputer date and time display is incorrect Cause Solution Poor performance is experienced Cause Solution Solving General ProblemsThere is no sound or sound volume is too low Cause Solution Cannot remove computer cover or access panel Cause SolutionYou do not want to launch automatically Cause SolutionEnww 2Solving Power Problems Solving Power ProblemsPower supply shuts down intermittently Cause Solution Solving Power Problems Drive not found Cause Solution Solving Diskette Problems3Solving Diskette Problems Diskette drive light stays on Cause SolutionDiskette drive cannot read a diskette Cause Solution Solving Diskette ProblemsCannot format diskette Cause Solution Problem has occurred with a disk transaction Cause SolutionSecurity Password Options Cannot Boot to Diskette Cause SolutionStorage Boot Order BootSolving Hard Drive Problems Solving Hard Drive Problems4Solving Hard Drive Problems Device Configuration Nonsystem disk/NTLDR missing message Cause SolutionStorage Boot Order list Computer will not boot from hard drive Cause SolutionAgain 5Solving Media Card Reader Problems Solving Media Card Reader ProblemsCan not write to the media card Cause Solution Solving Media Card Reader Problems Personalization, select Adjust screen resolution Solving Display Problems6Solving Display Problems Blank screen no video Cause SolutionDim characters Cause Solution Solving Display ProblemsOut of Range displays on screen Cause Solution Image is not centered Cause SolutionSelect ImageControl/ Horizontal Position or Vertical Certain typed symbols do not appear correct Cause Solution 7Solving Audio Problems Solving Audio ProblemsSound cuts in and out Cause Solution Line-in jack is not functioning properly Cause Solution Solving Audio ProblemsAdvanced Device Options Internal Speaker 8Solving Printer Problems Solving Printer Problems10Solving Mouse Problems Solving Keyboard and Mouse ProblemsSolving Keyboard and Mouse Problems 9Solving Keyboard ProblemsEnww Computer will not start Cause Solution Solving Hardware Installation ProblemsSolving Hardware Installation Problems 11Solving Hardware Installation ProblemsOnce bad card is identified, remove and replace bad Goes awayOption card Wake-on-LAN feature is not functioning Cause Solution Solving Network ProblemsSolving Network Problems 12Solving Network ProblemsDiagnostics reports a failure Cause Solution Network status link light never flashes Cause SolutionNew network card will not boot Cause Solution Memory count during Post is wrong Cause Solution Solving Memory Problems13Solving Memory Problems Out of memory error Cause SolutionInsufficient memory error during operation Cause Solution Solving Memory ProblemsMake sure the processor heatsink is installed properly Solving Processor Problems14Solving Processor Problems Some fans only operate when neededMode in Security Password Options Solving CD-ROM and DVD ProblemsSolving CD-ROM and DVD Problems 15Solving CD-ROM and DVD ProblemsCannot eject compact disc tray-load unit Cause Solution Movie will not play in the DVD drive Cause SolutionEnww System will not boot from USB flash drive Cause Solution Solving USB Flash Drive Problems16Solving USB Flash Drive Problems USB flash drive not found identified Cause SolutionSolving Front Panel Component Problems Solving Front Panel Component Problems17Solving Front Panel Component Problems 18Solving Internet Access Problems Solving Internet Access ProblemsUnable to connect to the Internet Cause Solution Modem Solving Internet Access ProblemsClick on System and Maintenance Double-clickAgere Systems PCI-SV92PP Soft19Solving Software Problems Solving Software ProblemsContacting Customer Support Post Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Table A-1Numeric Codes and Text MessagesContact an authorized dealer or reseller for Verify monitor is attached and turned Sata Under Storage DPS Self-testSave Changes and Exit Emulation to IDE, and select File SaveSelect Security Drivelock Security Emulation back to RAID and select FileKeyboard failure while Network Server Mode Activity Beeps Possible Cause Recommended Action Table A-2Diagnostic Front Panel LEDs and Audible CodesReplace one device at a time and repeat Red Power LED flashes eight Invalid ROM based on bad Enww Cmos Resetting the Password Jumper Clearing and Resetting the Cmos Figure B-1 Cmos button Locate, press, and hold the Cmos button in for five secondsDrive Protection System DPS Select Storage DPS Self-Test Accessing DPS Through Computer SetupIndex Index
Related manuals
Manual 20 pages 14.77 Kb Manual 4 pages 20.08 Kb Manual 4 pages 36.06 Kb Manual 120 pages 55.48 Kb

dc7900 specifications

The HP dc7900 is a well-regarded desktop solution that serves as a testament to HP's commitment to performance, reliability, and user accessibility. Introduced as part of HP’s Compaq line and designed primarily for business professionals, the dc7900 combines powerful processing capabilities with a compact form factor that suits various office environments.

One of the standout features of the HP dc7900 is its robust configuration options. It typically comes equipped with Intel's Core 2 Duo or Quad processors, giving users the ability to handle demanding applications seamlessly. The inclusion of Intel's technologies, such as Intel vPro, enhances remote management and IT control, making it an ideal choice for businesses looking to streamline their operations.

The dc7900 is designed with flexibility in mind. It offers multiple form factors, including mini-tower, small form factor, and ultra-slim desktop configurations. This variety enables organizations to choose a model that best fits their workspace requirements, maximizing both efficiency and aesthetics. The small footprint models are particularly beneficial in space-constrained environments, while the mini-tower version provides expandability for future upgrades.

In terms of graphics capabilities, the HP dc7900 typically features integrated Intel graphics, with options to install discrete graphics cards for users who require enhanced visual performance. This makes the dc7900 suitable for tasks ranging from standard office applications to more graphics-intensive responsibilities.

Connectivity is another key characteristic of the HP dc7900. It is equipped with a variety of ports, including USB 2.0 and audio jacks, allowing users to connect peripherals easily. Additionally, the dc7900 supports legacy connections, making it easier for businesses with older equipment to integrate new systems without hassle.

Durability and reliability are hallmarks of the HP dc7900. Built with high-quality materials and subjected to rigorous testing, this desktop is designed to withstand the demands of a bustling office environment. Furthermore, HP's comprehensive warranty and support options assure businesses of the reliability of their investment.

The HP dc7900 is not just a powerful desktop; it’s a versatile and dependable solution for modern businesses. With its combination of performance, expandability, and solid build quality, the dc7900 remains a relevant choice for those looking to enhance their productivity and efficiency in the workplace.