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Hardware Reference Manual

HP Compaq Business Desktop dx2480

Microtower Model

March 2008

This guide provides basic information for upgrading this computer

model.

Document Number : 468080-D61

Содержание Compaq dx2480

Страница 1: ...Hardware Reference Manual HP Compaq Business Desktop dx2480 Microtower Model March 2008 This guide provides basic information for upgrading this computer model Document Number 468080 D61 ...

Страница 2: ...Hardware Reference Guide HP Compaq Business Desktop dx2480 Microtower Model March 2008 This guide provides basic information for upgrading this computer model ...

Страница 3: ...HP shall not be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company WARNING Text set off in this manner indicates that failure to follow directions could...

Страница 4: ...1 Removing the Computer Access Panel 2 2 Removing the Front Bezel 2 3 Installing Additional Memory 2 4 DIMMs 2 4 DDR2 SDRAM DIMMs 2 4 Populating DIMM Sockets 2 5 Installing DIMMs 2 6 Removing a 5 25 Drive Bezel Blank 2 8 Replacing or Upgrading a Drive 2 9 Locating Drive Positions 2 10 Removing a Drive 2 11 Replacing a Drive 2 13 Install Second Hard Disk 2 16 Removing or Installing an Expansion Car...

Страница 5: ...nding Methods 5 1 6 Computer Operating Guidelines Routine Care and Shipping Preparation Computer Operating Guidelines and Routine Care 6 1 Optical Drive Precautions 6 2 Operation 6 2 Cleaning 6 2 Safety 6 2 Shipping Preparation 6 3 7 Computer Setup F10 Utility Computer Setup F10 Utility 7 1 Using Computer Setup F10 Utilities 7 2 Recovering the Configuration Settings 7 4 8 Troubleshooting Guide Com...

Страница 6: ...ary depending on the model For a complete listing of the hardware and software installed in the computer run the Diagnostics for Windows utility Instructions for using this utility are provided in the Troubleshooting Guide on the Documentation and Diagnostics CD Microtower Configuration Photos depicted may vary as per actual machine ...

Страница 7: ...Front Panel Components Power Button Hard Drive Activity Light 7 8 9 10 11 12 Optical Drive Eject Button Headphone Jack Microphone Connector USB Universal Serial Bus Ports Optical Drives Optical Drive Activity Lights Diskette Drive optional Diskette Drive Activity Light optional Diskette Drive Eject Button optional 1 2 3 4 5 6 Power On Light 1 2 8 9 10 3 4 5 6 7 11 12 ...

Страница 8: ...tch Parallel Port Connector PS 2 Mouse Connector Monitor Connector PS 2 Keyboard Connector Headphone Line Out Connector Universal Serial Bus USB Audio Line In Connector Serial Port Connector Microphone Connector 1 7 2 8 3 9 4 10 5 11 6 12 Arrangement and number of connectors may vary by model Photos depicted may vary as per actual machine 9 4 4 11 1 2 3 5 6 7 8 10 12 ...

Страница 9: ...use Ctrl Keys Used in combination with another key its effect depends on the application software you are using Application Key Used like the right mouse button to open pop up menus in a Microsoft Office application May perform other functions in other software applications Windows Logo Keys Used to open the Start menu in Microsoft Windows Used in combination with other keys to perform other funct...

Страница 10: ...does Minimize All Windows Logo Key e Launches My Computer Windows Logo Key f Launches Find Document Windows Logo Key Ctrl f Launches Find Computer Windows Logo Key F1 Launches Windows Help Windows Logo Key l Locks the computer if you are connected to a network domain or allows you to switch users if you are not connected to a network domain Windows Logo Key r Launches the Run dialog box Windows Lo...

Страница 11: ...Each computer has a unique serial number and a product ID number that are located on the top cover of the computer Keep these numbers available for use when contacting customer service for assistance Serial Number and Product ID Location Photos depicted may vary as per actual machine ...

Страница 12: ...ck fire or damage to the equipment do not plug telecommunications telephone connectors into the network interface controller NIC receptacles WARNING To reduce the risk of electrical shock before removing the computer cover ensure that telecommunication telephone connector TNV circuit are disconnected CAUTION Static electricity can damage the electrical components of the computer or optional equipm...

Страница 13: ...anel 1 Turn off the computer properly through the operating system and turn off any external devices 2 Disconnect the power cord from the power outlet and the computer and disconnect any external devices 3 Remove the screw that secures the access panel to the computer chassis 4 Slide the access panel back about 2 5 cm 1 inch then lift it off the unit 1 2 To replace the access panel reverse the rem...

Страница 14: ... operating system and turn off any external devices 2 Disconnect the power cord from the power outlet and the computer and disconnect any external devices 3 To remove the front bezel press down on all four tabs at the bottom of the bezel and then rotate the bezel off the chassis 1 Removing the Front Bezel Photos depicted may vary as per actual machine 2 1 ...

Страница 15: ...reinstalled DIMM To achieve the maximum memory support you can populate the system board with up to 8GB of memory configured in a high performing dual channel mode DDR2 SDRAM DIMMs For proper system operation if the computer supports DDR2 SDRAM DIMMs the DIMMs must be Industry standard 240 pin Unbuffered 800 MHz compliant DDR2 800 MHz DIMM 8GB Memory is supported only with Windows Vista 64 bit or ...

Страница 16: ... DIMM sockets are populated in one channel only The system will operate in dual channel Asymmetric mode if the total memory capacity of the DIMMs in Channel A is not equal to the total memory capacity of the DIMMs in Channel B There are Four DIMM sockets on the system board with two sockets per channel DIMM Socket Item Description Socket Color 1 3 DIMM socket Channel A DIMM socket Channel B Yellow...

Страница 17: ...ensure that you are discharged of static electricity by briefly touching a grounded metal object For more informations refer to Chapter 5 Electrostatic Discharge CAUTION When handling a memory module be careful not to touch any of the contacts Doing so may damage the module 1 Turn off the computer properly through the operating system and turn off any external devices 2 Disconnect the power cord f...

Страница 18: ...re in the closed position 7 Repeat steps 5 and 6 to install any additional modules 8 Replace the access panel The computer should automatically recognize the additional memory the next time you turn on the computer Hardware Reference Guide www hp com in 2 7 Hardware Upgrades 5 Open both latches of the memory module socket and insert the memory module into the socket 1 3 2 Installing a DIMM Photos ...

Страница 19: ...rd from the power outlet and the computer and disconnect any external devices 3 Remove the access panel and front bezel Refer to Removing the Computer Access Panel and Removing the Front Bezel 4 While facing the inside of the front bezel press the two retaining tabs on the right towards the outer edge of the bezel and pull the bezel blank inwards to remove it Removing a Bezel Blank To install a be...

Страница 20: ...r upgrading the storage drives A Torx screwdriver is needed to remove and install the guide screws and retainer screws on a drive CAUTION Make sure you back up your personal files on the hard drive to an external storage device such as a CD before removing the hard drive Failure to do so will result in data loss After replacing the primary hard drive you will need to run the Restore Plus DVD to lo...

Страница 21: ...Hardware Reference Guide www hp com in 2 10 Hardware Upgrades Locating Drive Positions Drive Positions Photos depicted may vary as per actual machine 2 3 ...

Страница 22: ...ng a Drive 1 Turn off the computer properly through the operating system and turn off any external devices Disconnect the power cord from the power outlet and disconnect any external devices 2 Remove the access panel and front bezel 3 Disconnect the power and data cables from the back of the drive as indicated in the following illustrations 4 Remove all the screws that secures the drives in the dr...

Страница 23: ...t from the back 6 Remove all the screws that secure the floppy drive in the bay Slide the drive disk forward and out of the bay WARNING There may be sharp edges on the insides of the bay opening after the shield has been removed Removing the Hard disk Photos depicted may vary as per actual machine ...

Страница 24: ...ve ensure that you are discharged of static electricity While handling a drive avoid touching the connector For more information about preventing electrostatic damage refer to Chapter 5 Electrostatic Discharge Handle a drive carefully do not drop it Do not use excessive force when inserting a drive Avoid exposing a hard drive to liquids temperature extremes or products that have magnetic fields su...

Страница 25: ... to align the guide screws with the guide slots until the drive snaps into place 2 Slide the optical drive into the drive bay making sure to align the screw holes with the drive bays holes Secure the Drive by tighten all two screws Sliding the Drives into the Drive Cage Photos depicted may vary as per actual machine 2 ...

Страница 26: ... Slide in the hard disk from the front to back making sure to align the screw holes with the drive bays holes Secure the Drive by tighten all the screws at each bottom side Sliding the Hard Drive into the Drive Cage Photos depicted may vary as per actual machine 3 ...

Страница 27: ...tall Second Hard Disk A second Hard disk should be installed as per following 1 Secure hard drive in hard drive bay located in as indicated by arrow 2 Secure the second hard drive by tightening the 2 screws at bottom 1 Photos depicted may vary as per actual machine 1 ...

Страница 28: ...ence Guide www hp com in 2 17 Hardware Upgrades 3 Connect one end of the data cables to the second hard drive as shown above 4 The other end connect to the system board Photos depicted may vary as per actual machine ...

Страница 29: ...f you replaced the primary hard drive insert the Restore Plus DVD to restore the operating system software drivers and or any software applications that were preinstalled on the computer from HP Follow the instructions in the guide included with the restore DVD When the restore process has completed reinstall any personal files that you backed up before replacing the hard drive ...

Страница 30: ...pgrades Removing or Installing an Expansion Card This computer has two PCI expansion slots one PCI Express x 1 one PCI Express x 16 slots Expansion Slot Locations Photos depicted may vary as per actual machine PCI E x16 Slot PCI E x1 Slot PCI Slot PCI Slot ...

Страница 31: ...ccess panel and lay the computer on its side with the opening to internal parts where the access panel was located facing up 3 On the rear panel of the computer remove the screw that secures the slot cover lock in place and slide the slot cover lock away from the slots to remove it from the computer Hardware Reference Guide www hp com in 2 20 Hardware Upgrades Releasing the Slot Cover Lock Photos ...

Страница 32: ... or the existing expansion card a If you are installing an expansion card in a vacant socket remove the appropriate expansion slot cover on the back of the chassis Pull the slot cover straight up from the socket then away from the inside of the chassis Removing an Expansion Slot Cover Photos depicted may vary as per actual machine ...

Страница 33: ...ully rock it back and forth until the connectors pull free from the socket Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame Be sure not to scrape the card against the other components 1 2 Removing an Expansion Card Photos depicted may vary as per actual machine ...

Страница 34: ...ing or Adding an Expansion Card 6 While holding the expansion card bracket against the chassis slide the slot cover lock down toward the expansion card bracket to secure it in place and replace the screw that secures the slot cover lock 7 Connect the external cables to the installed card if needed Connect internal cables to the system board if needed 8 Replace the computer access panel and reconne...

Страница 35: ... cover lock down toward the expansion card brackets and slot covers to secure them in place and replace the screw that secures the slot cover lock 11 Complete the procedure described in the Reassembling the Computer section of this chapter Hardware Reference Guide www hp com in 2 24 Hardware Upgrades 2 1 Securing the Expansion Cards and Slot Covers Photos depicted may vary as per actual machine ...

Страница 36: ...is in the upright position Insert the four tabs at the bottom of the bezel Snap into the slots of the chassis Align the two hooks on the top of the bezel into the rectangular holes on the chassis then rotate the bezel into the place 1 2 Replacing the Front Bezel Photos depicted may vary as per actual machine ...

Страница 37: ...ipment do not plug telecommunications or telephone connectors into the network interface controller NIC ports 5 Turn on the computer by pressing the power button Hardware Upgrades 2 Place the side access panel in the proper position on the chassis and slide it into place Ensure that the hole for the screw is aligned with the hole in the chassis and tighten the screw 1 2 Replacing the Side Access P...

Страница 38: ... reduce the risk of personal injury Do not attempt to recharge the battery Do not expose to temperatures higher than 60 C 140ºF Do not disassemble crush puncture short external contacts or dispose of in fire or water Replace the battery only with the HP spare designated for this product CAUTION Before replacing the battery it is important to back up the computer CMOS settings When the battery is r...

Страница 39: ...evices Then remove the computer access panel It may be necessary to remove an expansion card to gain access to the battery 3 Locate the battery and battery holder on the system board 4 Depending on the type of battery holder on the system board complete the following instructions to replace the battery a To release the battery from its holder squeeze the metal clamp that extends above one edge of ...

Страница 40: ...icted may vary as per actual machine WARNING System and CPU fans contain hazardous moving parts keep fingers and other body parts aways WARNING System and CPU fans contain hazardous moving parts keep fingers and other body parts aways Power Supply Notice Power Supply Label Power Supply Label System and CPU fan label WARNING The power supply contains hazardous moving parts Keep fingers and other bo...

Страница 41: ... or side panel has been removed Make sure that any system access was authorized and press F1 to continue When the computer is restarted the screen displays a message indicating that the computer cover or side panel has been removed Make sure that any system access was authorized and press F1 to continue At the next boot the screen displays a message indicating that the computer cover or side panel...

Страница 42: ... their containers until they arrive at static free workstations n Place parts on a grounded surface before removing them from their containers n Avoid touching pins leads or circuitry n Always be properly grounded when touching a static sensitive component or assembly Grounding Methods There are several methods for grounding Use one or more of the following methods when handling or installing elec...

Страница 43: ...r dissipating floor mats n Use conductive field service tools n Use a portable field service kit with a folding static dissipating work mat If you do not have any of the suggested equipment for proper grounding contact an HP authorized dealer reseller or service provider For more information on static electricity contact an HP authorized dealer reseller or service provider ...

Страница 44: ...d with the keyboard feet down directly against the front of the desktop unit as this also restricts airflow n Keep the computer away from excessive moisture direct sunlight and extremes of heat and cold n Keep liquids away from the computer and keyboard n Never cover the ventilation slots on the monitor with any type of material n Install or enable power management functions of the operating syste...

Страница 45: ...r before you turn off the power If you operate the unit immediately it may malfunction while reading n Avoid placing the drive in a location that is subject to high humidity extreme temperatures mechanical vibration or direct sunlight n Clean the panel and controls with a soft dry cloth or a soft cloth lightly moistened with a mild detergent solution Never spray cleaning fluids directly on the uni...

Страница 46: ...ves 3 Insert a blank diskette into the diskette drive to protect the drive while in transit Do not use a diskette on which you have stored or plan to store data 4 Turn off the computer and external devices 5 Disconnect the power cord from the electrical outlet then from the computer 6 Disconnect the system components and external devices from their power sources then from the computer Ensure that ...

Страница 47: ... Business Desktop dx2480 Microtower Model March 2008 This guide provides instructions on how to use Computer Setup This tool is used to reconfigure and modify computer default settings when new hardware is installed and for maintenance purposes ...

Страница 48: ...ry information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company WARNING Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life CAUTION Text set off in this manner indicates that failure to follow directions ...

Страница 49: ...ID 7 4 L1 Cache Size 7 4 L2 Cache Size 7 4 Memory DIMM1 7 4 Memory DIMM2 7 4 Memory DIMM3 7 4 Memory DIMM4 7 4 DDR Memory size 7 4 UUID 7 4 Chassis Serial Number 7 4 Set Asset TAG Number Press Enter 7 4 Asset TAG Number 7 4 Integrated MAC 7 4 Standard CMOS Feature 7 4 System Date 7 4 System Time 7 4 SATA PORT 0 7 4 SATA PORT 1 7 4 SATAPORT 2 7 4 SATAPORT3 7 4 IDE Channel 0 1Master 7 5 Access Mode ...

Страница 50: ...AN Boot ROM 7 7 Serial Port 7 7 Parallel Port 7 7 Parallel Port Mode 7 7 ECP Mode Use DMA 7 7 Power Management Setup 7 8 ACPI Function 7 8 ACPI Suspend Type 7 8 Restore OnAC Power Loss 7 8 Resume On PCI PME 7 8 Resume On PCI E PME 7 8 Wake On Ring 7 8 Resume On Alarm 7 8 Date of Month Alarm 7 8 Time hh mm ss Alarm 7 8 HPETMode 7 8 Hardware Monitor Setup 7 9 Reset Case Open Status 7 9 Case Opened 7...

Страница 51: ...es orUSB flashmediadevices Enable or disable Quick Power On SelfTest which is faster than a full boot but does not run all of the diagnostic tests run during a fullboot Enter theAssetTag or property identification number assigned by thecompanytothiscomputer Establish a supervisor password that controls access to Computer Setup F10 Utilityandthesettingsdescribedinthissection To secure integrated I ...

Страница 52: ...start 2 As soon as the computer is turned on press and hold the F10 key until you enter Computer Setup If you do not press the F10 key at the appropriate time you must restart the computer and press and hold the F10 key again to access the utility 3 The Computer Setup Utility screen is divided into menu headings and actions Eight menu headings appear on the Computer Setup Utility screen n System I...

Страница 53: ... arrow up and down keys to select the option you want then press Enter To return to the previous screen press Esc 4 To apply and save changes press F10 or select Save Exit Setup on the Computer Setup Utility screen and press Enter If you have made changes that you do not want applied select Exit Without Saving and press Enter CAUTION Do NOT turn the computer power OFF while the ROM is saving the F...

Страница 54: ...3 Memory DIMM4 DDR Memory Size view only view only view only UUID view only Chassis Serial Number view only Set Asset TAG Number Press Enter Enter asset tag assigned by the company Asset TAG Number view only Integrated MAC view only Standard System Date Allows you to set system date CMOS System Time Allows you to set system time Features Floppy Drive A View 1 44MB 3 5 or None SATA Port 0 HDD Auto ...

Страница 55: ...e Hard disk information view only Capacity Cylinder Head Precomp Landing Zone Sector Halt On Allows you to set at All errors No errors All but Keyboard SATA Controller This allows you to set for Disabled Enabled default LEGACY Mode support This allows you to set for Enabled default Disabled Computer Setup F10 Utility Guide www hp com in 7 5 Computer Setup F10 Utility Computer Setup Continued Suppo...

Страница 56: ...d is recognized as drive C if any device attached CDROM Boot Priority Allows you to change the ODD order First Boot Device Allows you to specify which devices will Second Boot Device boot first second and third or to Third Boot Device disable Boot Other Device Disables enables boot other device APIC Mode Disables enables the APIC mode Security Option Setup System F7 Diagnostic Support Allows to En...

Страница 57: ...r Setup options may vary depending on the hardware configuration Advanced Chipset Features Integrated USB Controller Disables enables on board USB Peripherals controller USB Legacy Support Disables enables USB Keyboard support Azalia Audio Enable Disabled Onboard LAN Disables enables onboard LAN controller Onboard LAN Boot Disables enables the boot ROM of the ROM onboard LAN chip Serial Port Allow...

Страница 58: ...AC Power Allows you to select system powerloss behavior Loss On Off Last State Resume On PCI PME Resume On PCIE PME Disables enables Resume by PME Disables enables Resume by PCIE PME Wake On by Ring Disables enables Resume on Ring Resume On Alarm Disables enables RTC alarm Date of Month Alarm HPET Mode If resume by Alarm is enabled allows you to select day of the month for resumption of RTC alarm ...

Страница 59: ... Only System Temperature View Only System Fan Speed View Only CPU Fan Fault Detect Enabled Disabled System Fan Fault Detect Enabled Disabled Load Defaults Allows you to reset computer setup to Setting Factory Defaults Set Supervisor Allows you to establish a password to Password control access to computer Setup Set User Allows you to establish a password to Password control access to computer Save...

Страница 60: ...leshooting Guide HP Business Desktop dx2480 March 2008 This guide provides helpful hints and solutions for troubleshooting the above products as well as scenarios for possible hardware and software problems ...

Страница 61: ...t be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company WARNING Text set off in this manner indicates that failure to follow directions could result in ...

Страница 62: ...ration of the computer and perform hardware diagnostic tests on the subsystems of the computer The utility simplifies the process of effectivelyidentifying diagnosing andisolatinghardwareissues Use HP Insight Diagnostics to determine if all the devices installed on the computer are recognized by the system and functioning properly Running tests isoptionalbutrecommendedafterinstallingorconnectingan...

Страница 63: ...e optical drive before booting to the hard drive Refer to the Computer Setup F10 Utility Guide on the Documentation and Diagnostics CD for more information 4 When prompted press the Y key if you want to operate in Safe mode or any other key if you want to operate in Regular mode Regular mode is the default mode if no keys are pressed within the specified time frame If the screen remains blank afte...

Страница 64: ...lnumber andprocessor information Communication Shows information about the computer parallel LPT and serial COM portsettings plus USB andnetworkcontrollerinformation Graphics Shows informationaboutthegraphicscontrollerofthecomputer Input Devices Shows information about the keyboard mouse and other inputdevicesconnectedtothecomputer Memory Shows information about all memory in the computer This inc...

Страница 65: ...ts to choose from n Quick Test Provides a predetermined script where a sample of each hardware component is exercised and requires no user intervention in either Unattended or Interactive mode n Complete Test Provides a predetermined script where each hardware component is fully tested There are more tests available in the Interactive mode but these require user intervention n Custom Test Provides...

Страница 66: ... Log tab and click the Error Log to display more detailed information and recommended actions Status Tab The Status tab displays the status of the selected tests The type of test executed Quick Complete or Custom is also displayed The main progress bar displays the percent complete of the current set of tests While testing is in progress a Cancel Testing button is displayed for use if you want to ...

Страница 67: ...hardware n The Failed Count is the number of times the test has failed n The Error Code provides a numerical code for the failure The error codes are defined in the Help tab n The Clear Error Log button will clear the contents of the Error Log Saving and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Status and Log tabs to a disk...

Страница 68: ...ptical drive Downloading the Latest Version of HP Insight Diagnostics 1 Go to www hp com 2 Click the Software Driver Downloads link 3 Click the Download drivers and software radio button 4 Enter your product number for example dx7380 in the text box and press the Enter key 5 Select your specific computer model 6 Select your OS 7 Click the Diagnostic link 8 Locate HP Insight Diagnostics and click D...

Страница 69: ...u are having problems with the computer try the appropriate solutions below to try to isolate the exact problem before calling for technical support n Run the diagnostics utility Refer to Chapter 1 Computer Diagnostic Features for more information n Check the Power LED on the front of the computer to see if it is flashing The flashing lights are error codes that will help you diagnose the problem ...

Страница 70: ...perating system and factory installed software CAUTION Running the Restore Plus DVD will erase all data on the hard drive To assist you in resolving problems online HP Instant Support Professional Edition provides you with self solve diagnostics If you need to contact HP support use HP Instant Support Professional Edition s online chat feature Access HP Instant Support Professional Edition at www ...

Страница 71: ...er light is on n Check to see that the monitor is turned on and the green monitor light is on n Turn up the brightness and contrast controls of the monitor if the monitor is dim n Press and hold any key If the system beeps the keyboard should be operating correctly n Check all cable connections for loose connections or incorrect connections n Wake the computer by pressing any key on the keyboard o...

Страница 72: ... operating system other than the factory installed operating system check to be sure that it is supported on the system n If the system has multiple video sources installed and a single monitor the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter During boot the other monitor connectors are disabled and if the monitor is connected into these port...

Страница 73: ...ective PCI card has been installed Drive data or power supply cables may not be properly connected The unit temperature was exceeded The fan may be blocked Software control of the power switch is not functional Solution Ensure that cables connecting the computer to the external power source are plugged in properly and the wall outlet is active Select the proper AC voltage using the slide switch Re...

Страница 74: ...S setup Enter into Integrated peripherals and enable the USB keyboard support First reset the Date and Time Properties in the Control Panel Computer Setup can also be used to update the RTC date and time If the problem persists replace the RTC battery See the Hardware Reference Guide on the Documentation and Diagnostics CD for instructions on installing a new battery Press the Num Lock key The Num...

Страница 75: ...e connections are not correct Solution Transfer data from the hard drive to create more space on the hard drive Add more memory Defragment hard drive Restart the computer Run the virus protection program 1 Close unnecessary applications to free up memory 2 Add more memory 1 Lower the display resolution for the current application or consult the documentation that came with the application for sugg...

Страница 76: ...iternal error has occurred and the computer is flashing a code Solution Press any key or click the mouse button and if set type your password Press the power button to resume from standby mode Be sure that the monitor can accept the same horizontal scan rate as the resolution chosen Set the selector switch to agree with the cable connection Try a different monitor Refer to Interpreting Diagnostic ...

Страница 77: ... cables are unplugged Power switch of new external device is not turned on When the system advised you of changes to the configuration you did not accept them A plug and play board may not automatically configure when added if the default configuration conflicts with other devices Solution Ensure that the device is properly and securely connected and that pins in the connector are not bent down En...

Страница 78: ...o determine possible causes 3 If you still cannot resolve the issue contact Customer Support Interpreting Diagnostic Lights and Audible Codes This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them If you see flashing LEDs on a PS 2 keyboard look for flashing LEDs...

Страница 79: ... any key or move the mouse to wake the computer 1 Ensure that the computer air vents are not blocked and the processor cooling fan is running 2 Open hood press power button and see if the processor fan spins If the processor fan is not spinning make sure the fan s cable is plugged onto the system board header Ensure the fan is fully properly seated or installed 3 If fan is plugged in and seated pr...

Страница 80: ...e LED does not turn green then 1 Check that the unit is plugged into a working AC outlet 2 Open hood and check that the power button harness is properly connected to the system board 3 Check that both power supply cables are properly connected to the system board 4 Check to see if the 5V_aux light on the system board is turned on If it is turned on then replace the power button harness 5 If the 5V...

Страница 81: ...feature In the event that you lose power during the initial operating system installation process use the Restore Plus DVD to install the operating system Contacting Customer Support For help and service contact an authorized reseller or dealer To locate a reseller or dealer near you visit www hp com If you take the computer to an authorized reseller dealer or service provider for service remember...

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