HP Compaq dx7510 Page 31 Service & Reference Manual Download

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Identifying the Chassis, Routine Care,
and Disassembly Preparation

This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.

CAUTION:

When the computer is plugged into an AC power source, voltage is always applied to the

system board. You must disconnect the power cord from the power source before opening the computer
to prevent system board or component damage.

Chassis Designations

The following subsection illustrates the dx7500 chassis design.

Microtower (MT)

Figure 5-1

HP Compaq dx7510 Microtower

Chassis Designations

Summary of Contents for Compaq dx7510

Page 1: ...Service Reference Guide HP Compaq dx7510 dx7518 Business PC ...

Page 2: ...companying such products and services Nothing herein should be construed as constituting an additional warranty 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 ...

Page 3: ...ollow directions could result in bodily harm or loss of life CAUTION Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information NOTE Text set off in this manner provides important supplemental information iii ...

Page 4: ...iv About This Book ...

Page 5: ...er Setup Integrated Peripherals 9 Computer Setup Power Management Setup 10 Computer Setup PnP PCI Configurations 10 Computer Setup Hardware Monitor Setup 11 Computer Setup Action Choices 12 Recovering the Configuration Settings 13 Backing Up the CMOS 13 Restoring the CMOS 13 3 Computer Diagnostic Features HP Insight Diagnostics 14 Accessing HP Insight Diagnostics 14 Survey Tab 15 Diagnose Tab 15 T...

Page 6: ...Materials and Equipment 26 Operating Guidelines 27 Routine Care 27 General Cleaning Safety Precautions 27 Cleaning the Computer Case 27 Cleaning the Keyboard 28 Cleaning the Monitor 28 Cleaning the Mouse 29 Service Considerations 29 Power Supply Fan 29 Tools and Software Requirements 29 Screws 29 Cables and Connectors 30 Hard Drives 30 Lithium Coin Cell Battery 30 6 Removal and Replacement Procedu...

Page 7: ...ard Drive 57 Front I O and USB Panel Housing Assembly 60 Power Switch LED Assembly 61 Speaker 62 System Fan 63 Heatsink assembly 64 Processor 65 Power Supply 66 System Board 67 Battery 68 Type 1 Battery Holder 69 Type 2 Battery Holder 70 Type 3 Battery Holder 71 Installing a Security Lock 72 Cable Lock 72 Padlock 72 HP Business PC Security Lock 73 Hood Sensor 75 Port Cover 75 Appendix A Connector ...

Page 8: ...83 Country Specific Requirements 84 Appendix C Troubleshooting Safety and Comfort 85 Before You Call for Technical Support 85 Helpful Hints 86 Solving General Problems 88 Solving Hardware Installation Problems 91 Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 92 Contacting Customer Support 93 Appendix D Specifications Index 96 viii ...

Page 9: ...t its proper installation NOTE If the computer shipped with more than one operating system language on the hard drive the installation process could take up to 60 minutes If your computer was not shipped with a Microsoft operating system some portions of this documentation do not apply Additional information is available in online help after you install the operating system Installing or Upgrading...

Page 10: ...e Recovery Disc Set 1 Click Start HP Backup and Recovery HP Backup and Recovery Manager to open the Backup and Recovery Wizard then click Next 2 Select Create a set of recovery discs Recommended and click Next 3 Follow the instructions in the wizard For more information on using HP Backup and Recovery Manager refer to the HP Backup and Recovery Manager User Guide by selecting Start HP Backup and R...

Page 11: ...ss to Computer Setup F10 Utility and the settings described in this section Secure integrated I O functionality including the serial USB or parallel ports audio or embedded NIC so that they cannot be used until they are unsecured Enable or disable removable media boot ability Enable or disable legacy diskette write ability when supported by hardware Using Computer Setup F10 Utilities Computer Setu...

Page 12: ...tup 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 Computer Setup F10 changes because the CMOS could become corrupted It is safe to turn off the computer only after exiting the F10 Setup screen Table 2 1 Computer Setup F10 Uti...

Page 13: ...Setup System Information Option Description System S N view only Product Name view only Ownership Tag Enter ownership tag assigned by the owner BIOS Version view only BIOS Release Date view only System Chipset Type view only Processor Type view only Processor Speed view only CPU ID view only Cache Size view only Memory DIMM1 view only Memory DIMM2 view only Memory DIMM3 view only Memory DIMM4 view...

Page 14: ...ows you to set Drive A to None or 1 44M 3 5 inch SATA Port 0 SATA Port 1 SATA Port 2 SATA Port 3 For each allows you to detect HDD size and head on selected channel set extended drive on selected channel to None Auto Manual set access mode on selected channel to CHS LBA Large Auto view Capacity Cylinder Head Precomp Landing Zone Sector SMART Support SMART Status Check SMART Short Self Test SMART E...

Page 15: ... system to skip certain tests while booting Enabling this feature decreases the time required to boot the system POST Delay Time Allows you to set a POST delay time to None 5 Seconds 10 Seconds 15 Seconds 20 Seconds Hard Disk Boot Priority Allows you to specify the order of attached hard drive devices such as USB HDD storage USB2 Drive Key or USB flash media The first drive in the order has priori...

Page 16: ... default NumLock status to off or on Security Option Allows you to set the security option to Setup or System so that the password is required every time the system boots or only when entering Computer Setup HDD S M A R T Capability Disables enables hard drive S M A R T capability Computer Setup Advanced Chipset Features NOTE Support for specific Computer Setup options may vary depending on the ha...

Page 17: ...D Audio Disables enables HD audio controller Onboard LAN Controller Disables enables onboard LAN controller Onboard LAN Boot ROM Disables enables the boot ROM of the onboard LAN chip HP Network Clone ROM Disables enables HP Network Clone ROM This option is available for Network Clone users only Onboard FDC Controller Disables enables onboard FDC controller Serial Port 1 Allows you to select a sett...

Page 18: ...pend S3 Suspend To RAM S1 S3 Resume on PME Disables enables Resume by PME Wake on Ring Disables enables Resume by Ring Resume by Alarm Disables enables RTC real time clock alarm Date of Month Alarm If RTC Alarm Resume is enabled allows you to select the day of the month for resumption of RTC alarm Set to 0 for every day Time hh mm ss Alarm If Resume on Alarm is enabled allows you to select what ti...

Page 19: ... 12 assigned to IRQ 14 assigned to IRQ 15 assigned to When resources are controlled manually allows you to assign each system interrupt a type depending on the type of device using the interrupt Legacy ISA for devices compliant with the original PC AT bus specification PCI ISA PnP for devices compliant with the Plug and Play standard whether designed for PCI or ISA bus architecture Computer Setup ...

Page 20: ...tory defaults Set Supervisor Password Allows you to establish a password to control access to Computer Setup Set User Password Allows you to establish a password to control access to the computer Supervisor password must be set before you can set a User password Save Exit Setup Allows you to save current settings and exit Computer Setup Exit Without Saving Allows you to exit Computer Setup without...

Page 21: ...ke device a storage device set to emulate a diskette drive and save the diskette or device for possible future use Backing Up the CMOS 1 Make sure the computer to be backed up is turned on Connect the removable storage to the computer 2 Boot to DOS 3 Type N folder BIOS exe SAVE ABC001 DAT where N is the drive letter of the removable storage to save the CMOS setting to the removable storage device ...

Page 22: ...commended after installing or connecting a new device You should run tests save the test results and print them so that you have printed reports available before placing a call to the Customer Support Center NOTE Third party devices may not be detected by HP Insight Diagnostics Accessing HP Insight Diagnostics You must boot to the Documentation and Diagnostics DVD as described in the steps below t...

Page 23: ...ed to the computer Memory Shows information about all memory in the computer This includes memory slots on the system board and any memory modules installed Miscellaneous Shows HP Insight Diagnostics version information computer configuration memory CMOS information system board data and system management BIOS data Storage Shows information about storage media connected to the computer This list i...

Page 24: ...f a logical volume NOTE Smart Array Drive Diagnosis has the unique capability of identifying multiple disk drives in a single volume that are functioning normally but should be replaced To diagnose a logical volume 1 Click the Diagnose tab 2 Under Smart Array Drive Diagnosis click to expand Storage 3 Select the logical volumes to diagnose and click the Diagnose button 4 The test status of the logi...

Page 25: ... all devices 6 Click the Begin Testing button at the bottom right corner of the screen to start the test The Status tab which allows you to monitor the progress of the test is automatically displayed during the testing process When the test is complete the Status tab shows whether the device passed or failed 7 If errors are found go to the Log tab and click the Error Log to display more detailed i...

Page 26: ...ab The HP Insight Diagnostics tab contains help topics and includes search and index features The Error Codes tab provides a description of each numerical error code that may appear in the Error Log tab located on the Log tab Each code has a corresponding error Message and a Recommended Repair action that should help solve the problem To find an error code description quickly enter the code in the...

Page 27: ...e Driver Downloads link 3 Enter your product number for example dx2810 in the text box and press the Enter key 4 Select your specific computer model 5 Select your OS 6 Click the Diagnostic link 7 Click HP Insight Diagnostics Offline Edition 8 Select a language and click Download NOTE The download includes instructions on how to create the bootable CD Protecting the Software To protect software fro...

Page 28: ...ery Disc Set immediately before using the computer and schedule regular automatic Recovery Point backups To create the Recovery Disc Set 1 Click Start HP Backup and Recovery HP Backup and Recovery Manager to open the Backup and Recovery Wizard then click Next 2 Select Create a set of recovery discs Recommended and click Next 3 Follow the instructions in the wizard For more information on using HP ...

Page 29: ...ial 400 700 mV Drive voltages 3 3 V 5 V 12 V Jumpers for configuring drive N A Data transfer rate 3 0 Gb s SATA Hard Drive Cables SATA Data Cable Always use an HP approved SATA 3 0 Gb s cable as it is fully backwards compatible with the SATA 1 5 Gb s drives Current HP desktop products ship with SATA 3 0 Gb s hard drives SATA data cables are susceptible to damage if overflexed Never crease a SATA d...

Page 30: ...drive partition A drive partition is the largest segment of a drive that may be properly accessed by the operating system A single hard drive may therefore be subdivided into a number of unique drive partitions in order to make use of all of its space Because of the differences in the way that drive sizes are calculated the size reported by the operating system may differ from that marked on the h...

Page 31: ...l for proper service CAUTION When the computer is plugged into an AC power source voltage is always applied to the system board You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage Chassis Designations The following subsection illustrates the dx7500 chassis design Microtower MT Figure 5 1 HP Compaq dx7510 Microtower Chassi...

Page 32: ...been degraded in the internal layers reducing its life expectancy Networks built into many integrated circuits provide some protection but in many cases the discharge contains enough power to alter device parameters or melt silicon junctions Generating Static The following table shows that Different activities generate different amounts of static electricity Static electricity increases as humidit...

Page 33: ...grounded surface before removing them from their container Always be properly grounded when touching a sensitive component or assembly Avoid contact with pins leads or circuitry Place reusable electrostatic sensitive parts from assemblies in protective packaging or conductive foam Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment...

Page 34: ...ch as ordinary plastic assembly aids and Styrofoam Use field service tools such as cutters screwdrivers and vacuums that are conductive Recommended Materials and Equipment Materials and equipment that are recommended for use in preventing static electricity include Antistatic tape Antistatic smocks aprons or sleeve protectors Conductive bins and other assembly or soldering aids Conductive foam Con...

Page 35: ...each other s re circulated or preheated air If the computer is to be operated within a separate enclosure intake and exhaust ventilation must be provided on the enclosure and the same operating guidelines listed above will still apply Keep liquids away from the computer and keyboard Never cover the ventilation slots on the monitor with any type of material Install or enable power management functi...

Page 36: ...Visible debris underneath or between the keys may be removed by vacuuming or shaking Canned pressurized air may be used to clean debris from under the keys Caution should be used as too much air pressure can dislodge lubricants applied under the wide keys If you remove a key use a specially designed key puller to prevent damage to the keys This tool is available through many electronic supply outl...

Page 37: ...amage Tools and Software Requirements To service the computer you need the following Torx T 15 screwdriver HP screwdriver with bits PN 161946 001 Torx T 15 screwdriver with small diameter shank for certain front bezel removal Flat bladed screwdriver may sometimes be used in place of the Torx screwdriver Phillips 2 screwdriver Diagnostics software HP tamper resistant T 15 wrench Smart Cover FailSaf...

Page 38: ...ot remove a hard drive while the computer is on or in standby mode Before handling a drive 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 Electrostatic Discharge Information on page 24 Do not use excessive force when inserting a drive Avoid exposing a hard drive to liquids ...

Page 39: ...cs utility to verify that all components operate properly NOTE Not all features listed in this guide are available on all computers Serial Number Location Each computer has a unique serial number and product ID number that are located on the top of the computer Keep these numbers available for use when contacting customer service for assistance Figure 6 1 Serial Number and Product ID Location NOTE...

Page 40: ...e systems the cooling fan is on even when the computer is in the Standby or Suspend modes The power cord should always be disconnected before servicing a unit 5 Disconnect the power cord from the electrical outlet and then from the computer 6 Disconnect all peripheral device cables from the computer NOTE During disassembly label each cable as you remove it noting its position and routing Keep all ...

Page 41: ...anel to the computer chassis 3 Slide the access panel back 2 about 1 3 cm 1 2 inch then lift it off the unit NOTE You may want to lay the computer on its side to install internal parts Be sure the side with the access panel is facing up Figure 6 2 Removing the Computer Access Panel To replace the access panel reverse the removal steps Access Panel 33 ...

Page 42: ...hree latches on the right side of the bezel 1 then rotate the right side of the bezel off the chassis 2 followed by the left side Figure 6 3 Removing the Front Bezel NOTE Model dx7518 shown NOTE The appearance of the front bezel may vary To reinstall the front bezel reverse the removal procedure 34 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 43: ... lower 5 25 inch bezel blank gently twist and pull on the bezel blank until it breaks free from the front bezel 1 then discard the bezel blank If the blank needs to be replaced at a later date you can order a replacement blank from HP 3 To remove the 3 5 inch bezel blank press the two retaining tabs towards the outer left edge of the bezel 2 and pull the bezel blank inwards to free it from the fro...

Page 44: ...AM DIMMs For proper system operation the DDR3 SDRAM DIMMs must be industry standard 240 pin unbuffered PC3 8500 1066 MHz compliant 1 5 volt DDR3 SDRAM DIMMs The DDR3 SDRAM DIMMs must also support CAS latency 7 DDR3 1066 Mhz 7 7 7 timing and CAS latency 8 DDR3 1066 Mhz 8 8 8 timing contain the mandatory JEDEC SPD information In addition the computer supports 512Mbit 1Gbit and 2Gbit non ECC memory t...

Page 45: ...ow the DIMMs are installed The system will operate in single channel mode if the DIMM sockets are populated in one channel only The system will operate in a higher performing dual channel mode if the total memory capacity of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B The technology and device width can vary between the channels For example if Channel A i...

Page 46: ...ter is plugged into an active AC outlet Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board The memory module sockets have gold plated metal contacts When upgrading the memory it is important to use memory modules with gold plated metal contacts to prevent corrosion and or oxidation resulting from having incompatible metals ...

Page 47: ...ating DIMM Sockets on page 37 for more information 5 Push the DIMM module down firmly into the socket ensuring that the module is fully inserted and properly seated The DIMM must be pushed all the way down into the socket and sit evenly in the socket to avoid memory corruption Make sure the latches are in the closed position 3 6 Repeat steps 4 and 5 to install any additional modules 7 Replace the ...

Page 48: ... PCI Express x1 expansion slot 4 PCI Express x16 expansion slot NOTE You can install a PCI Express x1 x4 x8 or x16 expansion card in the PCI Express x16 expansion slot To remove replace or add an expansion card 1 Prepare the computer for disassembly Preparation for Disassembly on page 32 2 Remove the access panel Access Panel on page 33 3 Locate the correct vacant expansion socket on the system bo...

Page 49: ... expansion slot cover or the existing expansion card NOTE Before removing an installed expansion card disconnect any cables that may be attached to the expansion card a If you are installing an expansion card in a vacant socket you must use a flatblade screwdriver to pry out the metal shield on the rear panel that covers the expansion slot Be sure to remove the appropriate shield for the expansion...

Page 50: ...s x16 card pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket Be sure not to scrape the card against the other components Figure 6 11 Removing a PCI Express x16 Expansion Card 6 Store the removed card in anti static packaging 7 If you are not installing a new expansion card install ...

Page 51: ...to the small slot on the chassis Press the card straight down into the expansion socket on the system board Figure 6 12 Installing an Expansion Card NOTE When installing an expansion card press firmly on the card so that the whole connector seats properly in the expansion card slot 9 Replace the slot cover lock and secure it in place with the screw that was previously removed Figure 6 13 Securing ...

Page 52: ... the folds on these cables Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable Do not rely on components like the drive cage power supply or computer cover to push cables down into the chassis Always position the cables to lay properly by themselves When removing the power supply power cable from the P1 connector on the system board always follow these s...

Page 53: ...LOPPY Black Diskette drive CHASSIS_FAN1 Brown Chassis fan CPU FAN White Heatsink fan F_PANEL Black Front power button LED F_USB1 White Front I O USB cable F_AUDIO Yellow Front I O audio SPEAKER White Internal speaker F_1394 Red Serial port F_USB2 Black Media card reader SATA0 dark blue Primary hard drive SATA1 white Primary optical drive SATA4 red Second hard drive SATA5 black Second optical drive...

Page 54: ...model dx7510 shown 1 Two 5 25 inch external drive bays for optional drives optical drive shown 2 One 3 5 inch external drive bay for optional drive diskette drive shown 3 Primary 3 5 inch internal hard drive bay 4 Secondary 3 5 inch internal hard drive bay for optional hard drive To verify the type size and capacity of the storage devices installed in the computer run Computer Setup Refer to the C...

Page 55: ...ct a diskette drive to the connector labeled FLOPPY Connect a media card reader to the USB connector labeled F_USB3 The system does not support Parallel ATA PATA optical drives or PATA hard drives You may install either a third height or a half height drive into a half height bay If needed HP has provided extra drive retainer screws on the interior of the front bezel that are used to secure the dr...

Page 56: ...quids temperature extremes or products that have magnetic fields such as monitors or speakers If a drive must be mailed place the drive in a bubble pack mailer or other protective packaging and label the package Fragile Handle With Care System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors Figure 6 16 System Board Drive Connectio...

Page 57: ...cess panel Access Panel on page 33 3 Lay the computer on its side with the front facing toward you 4 Remove the front bezel Front Bezel on page 34 5 Disconnect the power cable 1 and data cable 2 from the rear of the optical drive Figure 6 17 Disconnecting the Power and Data Cables 6 Remove the two screws that secure the drive to the drive cage 1 then slide the drive out of the front of the chassis...

Page 58: ...as screws installed on the sides of the drive remove the screws before inserting the drive into the chassis 6 Slide the drive in through the front of the chassis 1 until the screw holes on the drive are aligned with the screw holes on the drive cage and install the two M3 metric retainer screws 2 as shown in the following illustration NOTE Extra drive retainer screws are provided on the interior o...

Page 59: ...ically recognizes the drive and reconfigures the computer Removing an External 3 5 inch Drive CAUTION All removable media should be taken out of a drive before removing the drive from the computer NOTE The 3 5 inch drive bay may contain a diskette drive or a media card reader 1 Prepare the computer for disassembly Preparation for Disassembly on page 32 2 Remove the access panel Access Panel on pag...

Page 60: ...tainer screws that secure the drive to the bay 1 then slide the drive forward and out of the bay 2 Figure 6 22 Removing a 3 5 inch Device Diskette Drive Shown NOTE To install an external 3 5 inch drive refer to Installing a Drive into the 3 5 inch External Drive Bay on page 53 52 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 61: ...as screws installed on the sides of the drive remove them before inserting the drive into the chassis 8 Slide the drive in through the front of the chassis 1 until the screw holes on the drive are aligned with the screw holes on the drive cage and install the two M3 metric retainer screws 2 as shown in the illustration below NOTE Extra drive retainer screws are provided on the interior of the fron...

Page 62: ...ng the primary hard drive make sure you have created a Recovery Disc Set to restore the operating system software drivers and any software applications that were preinstalled on the computer If you do not have this CD set select Start HP Backup and Recovery and create it now 1 Prepare the computer for disassembly Preparation for Disassembly on page 32 2 Remove the access panel Access Panel on page...

Page 63: ... hard drive cage 1 then slide the hard drive cage away from the bottom of the chassis 2 as shown below Figure 6 25 Releasing the Hard Drive Cage 6 Lift the hard drive cage out of the chassis Figure 6 26 Removing the Hard Drive Cage Drives 55 ...

Page 64: ...our screws that secure the hard disk drive to the hard drive cage 1 then slide the hard disk drive out of the hard drive cage 2 Figure 6 28 Removing the Hard Drive NOTE To install an internal 3 5 inch hard drive refer to Installing an Internal 3 5 inch Hard Drive on page 57 56 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 65: ...to the hard drive cage 2 Make sure the hard disk drive cables are facing the top of the drive cage NOTE If you are replacing an old drive with a new drive use the four retainer screws from the old drive to install the new drive NOTE If you are installing a second hard drive use four of the extra standard 6 32 screws that are installed on the interior of the front bezel The 6 32 screws are silver R...

Page 66: ...or bend a SATA data cable tighter than a 30 mm 1 18 in radius A sharp bend can break the internal wires 4 Place the hard drive cage into the chassis 1 then slide it down toward the bottom of the chassis until it locks into place 2 Figure 6 31 Installing the Hard Drive Cage 58 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 67: ...ble to the dark blue connector labeled SATA1 to avoid any hard drive performance problems If you are adding a second hard drive connect the data cable to the light blue connector labeled SATA3 7 Replace the computer access panel 8 Lock any security devices that were disengaged when the access panel was removed NOTE If you are replacing the primary hard drive use the Recovery Disc Set to restore th...

Page 68: ...emove the front bezel Front Bezel on page 34 5 Unplug the four cables that connect the assembly to the system board 6 Remove the screw 1 that secures the housing to the chassis slide the housing up 2 and then pull the assembly away from the chassis while guiding the cables through the hole in the chassis To install the housing assembly reverse the removal procedures 60 Chapter 6 Removal and Replac...

Page 69: ...rive Removing an Optical Drive on page 49 6 Disconnect the braided cables from the system board 7 Remove the cable from the clips in the optical drive cage 8 Press the tab on the right side of the switch holder 1 to disengage it from the chassis rotate the switch to the left 2 and then pull it to the right and away from the chassis while guiding the wires through the hole in the chassis To install...

Page 70: ... the speaker cable from the system board 6 Remove the three screws that secure the speaker to the inside of the chassis and then lift it up and out of the chassis while threading the cable through hard drive cage bracket To install the speaker reverse the removal procedure Be sure to route the cable back through the hard drive cage bracket and the clip on the side of the optical drive cage 62 Chap...

Page 71: ... Lay the computer on its side with the rear facing toward you 4 Disconnect the cable that connects the system fan to the system board 5 Remove the four Phillips screws that secure the fan to the chassis rotate the top of the fan forward and then remove the fan from the chassis To install the fan reverse the removal procedures System Fan 63 ...

Page 72: ...inating the work area with thermal grease CAUTION Heatsink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the heatsink to the processor This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board When reinstalling an existing heatsink make sure that its bottom has been cleaned wit...

Page 73: ... socket These pins are very fragile and handling them could cause irreparable damage Once pins are damaged it may be necessary to replace the system board CAUTION The heatsink must be installed within 24 hours of installing the processor to prevent damage to the processor s solder connections To install a new processor 1 Place the processor in its socket and close the retainer 2 Secure the locking...

Page 74: ...found on the Web at http h18000 www1 hp com support files Power Supply WARNING Voltage is always present on the system board when the computer is plugged into an active AC outlet To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and or the AC outlet before opening the computer NOTE When installing a new power supply be sure to set...

Page 75: ...e defective system board and installed on the replacement system board Memory modules Processor 1 Prepare the computer for disassembly Preparation for Disassembly on page 32 2 Remove the access panel Access Panel on page 33 3 Lay the computer on its side with the rear facing toward you 4 Remove the front bezel Front Bezel on page 34 5 Remove an expansion cards Expansion Cards on page 40 6 Disconne...

Page 76: ...out three years When replacing the battery use a battery equivalent to the battery originally installed on the computer The computer comes with a 3 volt lithium coin cell battery NOTE The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket The lithium battery is only used when the computer is NOT connected to AC power WARNING This computer contains a...

Page 77: ...nning these procedures ensure that you are discharged of static electricity by briefly touching a grounded metal object 1 Prepare the computer for disassembly Preparation for Disassembly on page 32 2 Remove the access panel Access Panel on page 33 NOTE 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 Type 1 Ba...

Page 78: ...ery under the holder s lip with the positive side up 2 Push the other edge down until the clamp snaps over the other edge of the battery 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide 70 Chapter 6 Removal and Replace...

Page 79: ... 2 2 Insert the new battery and position the clip back in place 3 Replace the computer access panel 4 Plug in the computer and turn on power to the computer 5 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide Battery 71 ...

Page 80: ...locks displayed below and on the following pages can be used to secure the computer Cable Lock Figure 6 33 Installing a Cable Lock Padlock Figure 6 34 Installing a Padlock 72 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 81: ... security cable by looping it around a stationary object Figure 6 35 Securing the Cable to a Fixed Object 2 Thread the keyboard and mouse cables through the lock Figure 6 36 Threading the Keyboard and Mouse Cables Installing a Security Lock 73 ...

Page 82: ...hing the Lock to the Chassis 4 Insert the plug end of the security cable into the lock 1 and push the button in 2 to engage the lock Use the key provided to disengage the lock Figure 6 38 Engaging the Lock 74 Chapter 6 Removal and Replacement Procedures Microtower MT Chassis ...

Page 83: ... until the access panel is replaced Port Cover To install the port cover slide the bottom half of the cover onto the chassis 1 then slide the top half of the cover onto the chassis at an angle 2 then rotate the top half down onto the bottom half 3 Ensure that the cables coming out of the rear of the computer are routed through the holes in the port cover Installing a Security Lock 75 ...

Page 84: ...tion connectors Some of these connectors may not be used on the product being serviced Keyboard Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused Mouse Connector and Icon Pin Signal 1 2 3 Data Unused Ground 4 5 6 5 VDC Clock Unused 76 Appendix A Connector Pin Assignments ...

Page 85: ...a Bit 5 Data Bit 6 14 15 16 17 Auto Linefeed Error Initialize Printer Select IN 9 Data Bit 7 18 25 Signal Ground Serial Interface Powered and Non Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect 12V if powered Receive Data Transmit Data 4 5 6 Data Terminal Ready Signal Ground Data Set Ready 7 8 9 Request to Send Clear to Send Ring Indicator 5V if powered Parallel Interface 77 ...

Page 86: ... Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_left Power_Right Ground Line in Audio Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_In_Left Audio_In_Right Ground Line out Audio Connector and Icon 1 8 miniphone Pin Signal 1 2 3 1 Tip 2 Ring 3 Shield Audio_Out_Left Audio_Out_Right Ground 78 Appendix A Connector Pin Assignments ...

Page 87: ...ta 5 6 7 8 Ground Ground Ground Ground 13 14 15 Horizontal Sync Vertical Sync DDC Serial Clock 24 Pin Power Connector 24 12 13 1 Front Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 6 3 3V 3 3V GND 5V GND 5V 7 8 9 10 11 12 GND POK 5 Vaux 12V 12V 3 3V 13 14 15 16 17 18 3 3V 12V GND PSON GND GND 19 20 21 22 23 24 GND open 5V 5V 5V GND Monitor 79 ...

Page 88: ... 36 37 38 39 40 PERn4 GND GND PERp5 PERn5 41 42 43 44 45 GND GND PERp6 PERn6 GND 46 47 48 49 50 GND PERp7 PERn7 GND RSVD 51 52 53 54 55 GND PERp8 PERN8 GND GND 56 57 58 59 60 PERp9 PERn9 GND GND PERp10 61 62 63 64 65 PERn10 GND GND PERp11 PERn11 66 67 68 69 70 GND GND PERp12 PERn12 GND 71 72 73 74 75 GND PERp13 PERn13 GND GND 76 77 78 79 80 PERp14 PERn14 GND GND PERp15 81 82 PERn15 GND Pin B infor...

Page 89: ...Tn4 GND 36 37 38 39 40 GND PETp5 PETn5 GND GND 41 42 43 44 45 PETp6 PRTn6 GND GND PETp7 46 47 48 49 50 PETn7 GND PRSNT2 GND PETp8 51 52 53 54 55 PETn8 GND GND PETp9 PETn9 56 57 58 59 60 GND GND PETp10 PETn10 GND 61 62 63 64 65 GND PETp11 PETn11 GND GND 66 67 68 69 70 PETp12 PETn12 GND GND PETp13 71 72 73 74 75 PETn13 GND GND PETp14 PETn14 76 77 78 79 80 GND GND PETp15 PETn15 GND 81 82 PRSNT2 RSVD ...

Page 90: ...4 Pin Power for CPU Connector and Icon Pin Signal 1 2 3 4 GND GND 12V CPU 12V CPU 82 Appendix A Connector Pin Assignments ...

Page 91: ...dited agency responsible for evaluation in the country where the power cord set will be installed 2 The power cord set must have a minimum current capacity of 10A 7A Japan only and a nominal voltage rating of 125 or 250 volts AC as required by each country s power system 3 The diameter of the wire must be a minimum of 0 75 mm2 or 18AWG and the length of the cord must be between 1 8 m 6 feet and 3 ...

Page 92: ... fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SVT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration 3 Appliance coupler flexible cord and wall plug must bear a T ...

Page 93: ...ies of beeps from the computer The beeps are error codes that will help you diagnose the problem Refer to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 92 to interpret the codes If the screen is blank plug the monitor into a different video port on the computer if one is available Or change out the monitor with a monitor that you know is functioning properly If you are wo...

Page 94: ...onitor are plugged into a working electrical outlet Check to see that the voltage select switch some models is set to the appropriate voltage for your region 115V or 230V Check to see that the computer is turned on and the power light is on Check to see that the monitor is turned on and the green monitor light is on Turn up the brightness and contrast controls of the monitor if the monitor is dim ...

Page 95: ...he source selected as the primary VGA adapter During boot the other monitor connectors are disabled and if the monitor is connected into these ports the monitor will not function You can select which source will be the default VGA source in Computer Setup CAUTION When the computer is plugged into an AC power source there is always voltage applied to the system board You must disconnect the power c...

Page 96: ...bles The unit temperature was exceeded The fan may be blocked 1 Unit is in an exceedingly hot environment Let it cool down 2 Ensure that computer air vents are not blocked and the internal fan is running 3 Contact an HP authorized reseller or service provider Computer appears locked up and will not turn off when the power button is pressed Cause Solution Software control of the power switch is not...

Page 97: ...monitor to permit the required airflow 2 Make sure fans are connected and working properly some fans only operate when needed 3 Make sure the processor heatsink is installed properly Hard drive is full Transfer data from the hard drive to create more space on the hard drive Low on memory Add more memory Hard drive fragmented Defragment hard drive Program previously accessed did not release reserve...

Page 98: ...k the mouse button and if set type your password Computer is in standby mode Press the power button to resume from standby mode CAUTION When attempting to resume from standby mode do not hold down the power button for more than four seconds Otherwise the computer will shut down and you will lose any unsaved data You are using a fixed sync monitor and it will not sync at the resolution chosen Be su...

Page 99: ... are unplugged Ensure that all cables are properly and securely connected and that pins in the cable or connector are not bent down Power switch of new external device is not turned on Turn off the computer turn on the external device then turn on the computer to integrate the device with the computer system When the system advised you of changes to the configuration you did not accept them Reboot...

Page 100: ...ss any key or move the mouse to wake the computer CPU fan is weak RPM 1000 or not turning A warning message is displayed along with a series of long beeps for five seconds then the system shuts down 2 Processor thermal protection activated A fan may be blocked or not turning OR The heatsink fan assembly is not properly attached to the processor 1 Ensure that the computer air vents are not blocked ...

Page 101: ...is working correctly Try the following 1 Check that the voltage selector some models located on the rear of the power supply is set to the appropriate voltage Proper voltage setting depends on your region 2 Replace the system board OR Press and hold the power button for less than 4 seconds If the hard drive LED does not turn on green then 1 Check that the unit is plugged into a working AC outlet 2...

Page 102: ...erating Nonoperating 10 000 ft 30 000 ft 3048 m 9144 m NOTE Operating temperature is derated 1 0 C per 300 m 1000 ft to 2 286 m 7 5000 ft above sea level no direct sustained sunlight Maximum rate of change is 7 5 C Hr The upper limit may be limited by the type and number of options installed Heat Dissipation Maximum Typical idle 1575 BTU hr 307 BTU hr 397 kg cal hr 77 kg cal hr Power Supply Operat...

Page 103: ...rrected power supply The power factor correction is present in the 230V operating mode only This allows the system to pass the CE mark requirements for use in the countries of the European Union This supply requires the use of an input voltage range select switch Table D 1 Specifications continued 95 ...

Page 104: ...aration 32 diskette drive installing 53 removing 51 drive connectors 48 drives connecting cables 47 installing 47 MT removal and replacement 46 E electrostatic discharge ESD preventing damage 25 expansion card sockets 40 expansion slot cover removing 41 replacing 43 F fan MT removal and replacement 63 power supply 29 front bezel MT removal and replacement 34 front I O device MT removal and replace...

Page 105: ...cement 61 preparation for disassembly 32 processor MT removal and replacement 65 product ID location 31 R removal and replacement MT access panel 33 MT battery 68 MT drives 46 MT fan 63 MT front bezel 34 MT front I O device 60 MT heatsink 64 MT power supply 66 MT power switch 61 MT processor 65 MT speaker 49 51 53 54 62 MT system board 67 removing diskette drive 51 expansion slot cover 41 hard dri...

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HP Compaq dx7510, Service & Reference Manual

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