HP Compaq dx2308 Service & Reference Manual Download Page 70

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System Board

Prepare the computer for disassembly (

Preparation for Disassembly on page 37

)

Remove the access panel.(

Access Panel on page 38

)

Remove the front bezel and lay the computer down on its side to make it easier to work on. (

Front

Bezel on page 39

Disconnect the power, and data cables from the back of all installed drives.

Disconnect all cables from the system board.

Remove the heatsink from the system board (

Heatsink on page 59

)

Remove the 6 screws that secure the system board to the chassis (1).

Slide the system board towards the front of the chassis (2) then, remove it from the chassis.

NOTE:

The system board in the computer may look slightly different from the one shown

here.

To install the system board, reverse the removal procedure.

NOTE:

After installing a new system board, always update the system ROM to ensure that the

latest version of the BIOS is being used on the computer. The latest system ROM BIOS can be found

on the Web at: http:\\h18000.www1.hp.com/support/files.

62 Chapter

Removal and Replacement Procedures— Microtower (MT) Chassis

ENWW

Summary of Contents for Compaq dx2308

Page 1: ...Service Reference Guide HP Compaq dx2300 and dx2308 Business PC ...

Page 2: ...mpanying 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 of...

Page 3: ...low 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 ENWW iii ...

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

Page 5: ...Recovering the Configuration Settings 10 Backing Up the CMOS 11 Restoring the CMOS 11 3 HP Insight Diagnostics HP Insight Diagnostics 13 Accessing HP Insight Diagnostics 13 Survey Tab 14 Test Tab 14 Status Tab 15 Log Tab 16 Help Tab 16 Saving and Printing Information in HP Insight Diagnostics 16 Downloading the Latest Version of HP Insight Diagnostics 17 4 Desktop Management Remote System Installa...

Page 6: ... 30 Grounding the Work Area 30 Recommended Materials and Equipment 30 Operating Guidelines 32 Routine Care 32 General Cleaning Safety Precautions 32 Cleaning the Computer Case 32 Cleaning the Keyboard 33 Cleaning the Monitor 33 Cleaning the Mouse 34 Service Considerations 34 Power Supply Fan 34 Tools and Software Requirements 34 Screws 34 Cables and Connectors 35 Hard Drives 35 Lithium Coin Cell B...

Page 7: ...Holder 66 Power Supply 67 Appendix A Connector Pin Assignments Keyboard 69 Mouse 69 Ethernet BNC 69 Ethernet RJ 45 70 Ethernet AUI 70 Parallel Interface 71 Serial Interface Powered and Non Powered 71 USB 71 Diskette Drive Power 72 Microphone 72 Headphone 72 Line in Audio 72 Line out Audio 72 External Infrared Transceiver 73 Monitor 73 Diskette Drive Standard Data Cable 74 24 Pin Power 74 24 Pin Mi...

Page 8: ...ord Requirements 81 Country Specific Requirements 81 Appendix C Troubleshooting Safety and Comfort 83 Helpful Hints 83 Solving General Problems 85 Solving Hardware Installation Problems 88 Interpreting Diagnostic Lights 89 Index 91 viii ENWW ...

Page 9: ...nce at the back of the unit and above the monitor to permit the required airflow The first time the computer is turned on the operating system is automatically installed This takes approximately 5 to 10 minutes depending on the operating system being installed Carefully read and follow the instructions that appear on the screen to complete the installation NOTE If the computer shipped with more th...

Page 10: ...to open the Backup and Recovery Wizard then click Next 2 Select Create factory software recovery CDs or DVDs to recover the system 3 Follow the instructions in the wizard The HP Backup and Recovery Manager provides two basic recovery methods The first recovery of files and folders operates in Windows The second PC Recovery requires a reboot to the Recovery Partition or from the Recovery Disc Set T...

Page 11: ...s 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 Setup can be accessed only by turning the computer on or restarting th...

Page 12: ...10 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 Utility Main Menu Heading Table System Information Computer Setup System Information on page 4 Main Computer Setup Main on page 6 Advanced Computer Setup Advanced on page 7 Boot Computer Setup Boot on page 9 PC Health Computer Setup PC Health o...

Page 13: ...ew only Memory Size view only Integrated MAC view only UUID view only System Serial view only Asset Tracking Number view only Table 2 2 Computer Setup System Information continued ENWW Computer Setup F10 Utilities 5 ...

Page 14: ...DD self test for selected channel SMART Status Check HDD Short Self Test HDD Extended Self Test auto detect HDD size and head set extended IDE drive on selected channel to None Auto set access mode on selected channel to Large Auto view Firmware Capacity Cylinder Head Precomp Landing Zone Sector Onboard FDC Controller Disables enables the floppy disk controller Drive A Allows you to set Drive A to...

Page 15: ...deo memory 64MB 128MB 224MB Init Display First VGA Setting Allows you to select the primary display device PCI Slot OnChipVGA PCIEx Onboard HD Audio Disables enables onboard HD audio OnChip USB Controller Disables enables USB controller USB Legacy Support Disables enables USB legacy support function USB keyboard USB mouse and USB flash media Onboard LAN Disables enables onboard LAN controller Onbo...

Page 16: ...or On Off Last State Wake on PCI Device from S5 Disables enables waking up from S5 by PCI device RTC Alarm Resume Disables enables RTC real time clock alarm Date of Month 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 Resume Time hh mm ss If RTC Alarm Resume is enabled allows you to select what time the RTC alarm will res...

Page 17: ...rives including USB ODD are checked for a bootable operating system image Network Boot Seq Allows you to specify the order in which network devices including UP NIC cards are checked for a bootable operating system image First Boot Device Second Boot Device Third Boot Device Fourth Boot Device Allows you to specify which devices will boot first second third and fourth or to disable any of the four...

Page 18: ...ettings and exit Computer Setup Exit Without Saving Allows you to exit Computer Setup without saving changes Load Optimized Defaults Allows you to reset Computer Setup to factory defaults Recovering the Configuration Settings Recovering the configuration settings established in the Computer Setup F10 Utility requires that you first back up the settings before a recovery is needed The CMOS Save Loa...

Page 19: ...f the removable storage to save the CMOS setting to the removable storage device Restoring the CMOS 1 Make sure the target computer is turned on Connect the removable storage to the target computer 2 Boot to DOS 3 Type N folder BIOS exe LOAD ABC001 DAT where N is the drive letter of the removable storage to load the custom CMOS setting onto the target system ENWW Recovering the Configuration Setti...

Page 20: ...12 Chapter 2 Computer Setup F10 Utility ENWW ...

Page 21: ...ed by the system and functioning properly Running tests is optional but recommended 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 ...

Page 22: ...use and other input devices connected 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 co...

Page 23: ...ll 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 inf...

Page 24: ...iagnostics 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 box at the top of ...

Page 25: ...n and Diagnostics CD from the optical drive Downloading the Latest Version of HP Insight Diagnostics 1 Go to http www hp com 2 Click the Software Driver Downloads link 3 Enter your product number for example dc7700 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 lang...

Page 26: ...18 Chapter 3 HP Insight Diagnostics ENWW ...

Page 27: ...4 Desktop Management ENWW 19 ...

Page 28: ...wing tasks Formatting a hard drive Deploying a software image on one or more new PCs Remotely updating the system BIOS in flash ROM Configuring the system BIOS settings To initiate Remote System Installation press F12 when the F12 Network Service Boot message appears in the lower right corner of the HP logo screen when the computer is booting up Follow the instructions on the screen to continue th...

Page 29: ...ormally If the system BIOS image is not valid a failsafe Boot Block BIOS provides enough support to search removable media for BIOS image files If an appropriate BIOS image file is found it is automatically flashed into the ROM start the system from bootable removable media that automatically invokes system BIOS upgrade utilities When an invalid system BIOS image is detected the system power LED w...

Page 30: ...used by the end user There is no back door that can be used to unlock the drive if both passwords are lost Therefore DriveLock is most safely used when the data contained on the hard drive is replicated on a corporate information system or is regularly backed up In the event that both DriveLock passwords are lost the hard drive is rendered unusable For users who do not fit the previously defined c...

Page 31: ...forgetting both passwords is much greater than the value of the data DriveLock has been designed to protect Access to Computer Setup and DriveLock can be restricted through the Setup password By specifying a Setup password and not giving it to end users system administrators are able to restrict users from enabling DriveLock Cable Lock Provision The rear panel of the computer accommodates a cable ...

Page 32: ...wer surge of up to 2000 volts without incurring any system downtime or data loss Thermal Sensor The thermal sensor is a hardware and software feature that tracks the internal temperature of the computer This feature displays a warning message when the normal range is exceeded which gives you time to take action before internal components are damaged or data is lost 24 Chapter 4 Desktop Management ...

Page 33: ... 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 data cable and never bend it tight...

Page 34: ...a 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...

Page 35: ...ial 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 dx2300 and dx2308 chassis design Microtower MT Figure 6 1 dx2300 ENWW Chassis D...

Page 36: ...Figure 6 2 dx2308 28 Chapter 6 Identifying the Chassis Routine Care and Disassembly Preparation ENWW ...

Page 37: ...00 V 3 000 V 400 V 400 V 15 000 V 5 000 V 800 V 700 V 35 000 V 12 000 V 6 000 V 2 000 V Removing DIPs from vinyl tray Removing DIPs from Styrofoam Removing bubble pack from PCB Packing PCBs in foam lined box 2 000 V 3 500 V 7 000 V 5 000 V 4 000 V 5 000 V 20 000 V 11 000 V 11 500 V 14 500 V 26 500 V 21 000 V These are then multi packaged inside plastic tubes trays or Styrofoam NOTE 700 volts can d...

Page 38: ... Work Area To prevent static damage at the work area use the following precautions Cover the work surface with approved static dissipative material Provide a wrist strap connected to the work surface and properly grounded tools and equipment Use static dissipative mats foot straps or air ionizers to give added protection Handle electrostatic sensitive components parts and assemblies by the case or...

Page 39: ...to ground Field service kits Static awareness labels Wrist straps and footwear straps providing one megohm 10 resistance Material handling packages Conductive plastic bags Conductive plastic tubes Conductive tote boxes Opaque shielding bags Transparent metallized shielding bags Transparent shielding tubes ENWW Electrostatic Discharge Information 31 ...

Page 40: ... 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 functions of the operating system o...

Page 41: ...n debris from under the keys 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 throug...

Page 42: ...irements 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 FailSafe Key PN 166527 001 or HP tam...

Page 43: ...rn off the computer Do not 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 29 Do not use excessive force when inserting a drive Avoid exposing ...

Page 44: ...36 Chapter 6 Identifying the Chassis Routine Care and Disassembly Preparation ENWW ...

Page 45: ...Turn off the computer before disconnecting any cables CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet In some 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...

Page 46: ...t the power cord from the computer and from the power source 1 3 Remove the two screws that secure the access panel to the computer chassis 2 4 Slide the access panel back about 6 mm 1 4 inch then rotate the top of the panel away from the chassis pivot on the bottom and lift it off the unit 3 Figure 7 1 Removing the Access Panel To replace the access panel reverse the removal steps 38 Chapter 7 Re...

Page 47: ... 37 2 Remove the access panel Access Panel on page 38 3 Press down on all three tabs 1 on the left side of the bezel then rotate the bezel off the chassis 2 beginning with the left side and then the right side To reinstall the front bezel reverse the removal procedure ENWW Front Bezel 39 ...

Page 48: ...e front bezel Front Bezel on page 39 5 25 Drive Bezel Blank While facing the inside of the front bezel press the two retaining tabs on the right towards the outer edge of the bezel 1 and pull the bezel blank inwards 2 to remove it To install a bezel blank reverse the removal procedure 40 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 49: ... press outward on the retaining tabs on each side of the bezel blank 1 and pull the bezel blank inwards to remove it NOTE To install a 3 5 bezel blank press the blank inward from the inside of the front bezel so that it snaps into place ENWW Removing a 3 5 Drive Bezel Blank 41 ...

Page 50: ... for PC2 5300 667 MHz contain the mandatory JEDEC SPD information In addition the computer supports 256Mbit 512Mbit and 1Gbit non ECC memory technologies single sided and double sided DIMMs DIMMs constructed with x8 and x16 DDR devices DIMMs constructed with x4 SDRAM are not supported NOTE The system will not start if you install unsupported DIMMs Installing Memory Modules CAUTION The memory modul...

Page 51: ...ches of the memory module socket 1 and insert the memory module into the socket 2 Begin by installing a module into the socket nearest the pre installed module and install the modules following the numerical order of the sockets NOTE A memory module can be installed in only one way Match the notch on the module with the tab on the memory socket 4 Push the module down into the socket ensuring that ...

Page 52: ...the computer down on its side to make it easier to work on 4 On the rear of the computer remove the screw that secures the slot cover lock in place 1 then slide the slot cover lock up and away from the slots to remove it from the computer 2 To reinstall the slot cover lock reverse the removal procedure 44 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 53: ...he card at each end and carefully rock it back and forth until the connectors pull free from the socket Be sure not to scrape the card against other components 7 Store the card in anti static packaging 8 Install a new expansion card or an expansion slot cover to close the open slot To install a replacement expansion card go to step 10 9 If you are installing an expansion card for the first time yo...

Page 54: ...nstall an expansion card make sure you press firmly on the card so that the entire connector seats properly in the expansion card socket 11 Reinstall the slot cover lock and its retaining screw 12 Replace the access panel 13 Connect external cables to the installed card if needed Reconfigure the computer if necessary 46 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 55: ...an break the internal wires 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 ...

Page 56: ...e To PCA Designator Diskette drive System board FDD1 1st SATA Hard drive System board SATA1 2nd SATA Hard drive System board SATA2 Primary ODD System board SATA3 Second ODD System board SATA4 Heatsink fan System board CPU_FAN1 Chassis fan System board SYS_FAN1 Front power on button System board JFP1 Front I O USB System board JUSB1 Speaker System board SPKR Front audio System board AUD1 Second Ser...

Page 57: ... external storage device 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 CD to load the Compaq factory installed files Drive Positions Drive Positions Item Description Item Description 1 Optical drive 4 Internal hard drive secondary 2 Optical drive 5 Internal hard drive primary 3 External 3 5 driv...

Page 58: ...al procedure NOTE If you are installing a 5 25 drive for the first time into bay 2 you must first remove the metal shield that covers the bay by pressing in on the silver colored tab on the left side of the chassis then pulling the shield out from the front of the chassis It is not necessary to remove the drive from bay 1 when performing this operation NOTE There are a total of eight extra guide r...

Page 59: ...d If the device is a diskette drive disconnect the power and data cables from the back of the drive 5 Remove the retainer screws that secure the drive in the bay 1 then slide the drive forward and out of the bay 2 To install a drive reverse the removal procedure Be sure to install a guide screw on the front right side of a new drive The guide screw helps secure the drive in place Refer to the tabl...

Page 60: ...d US 6 32 standard threads and for have M3 metric threads US screws are used for used for hard drives and have a silver finish Metric screws are used for all other drives and have a black finish Be sure to install the appropriate guide screws into the drive 52 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 61: ...the rear of the drive bay 2 To replace the hard drive cage reverse the removal procedure No guide screws are required for drives installed in the hard drive bays bays 4 and 5 NOTE If you replaced the primary hard drive the Restore Plus CD may be used to restore the operating system software drivers and or any software applications that were preinstalled on the computer Follow the instructions in t...

Page 62: ... Access Panel on page 38 3 Remove the front bezel Front Bezel on page 39 4 Free the two cables from the cable tie that is attached to the chassis 5 Remove the screw 1 that secures the housing to the chassis and then rotate the housing away from the chassis and pull the assembly out of the chassis To install the housing assembly reverse the removal procedures 54 Chapter 7 Removal and Replacement Pr...

Page 63: ...to the table to make it easier to work on Access Panel on page 38 3 Disconnect the braided cables from the system board 4 Free the braided cables from the cable tie that is attached to the chassis 5 Squeeze the top of the switch holder 1 rotate the switch and remove it from the chassis To install the power switch assembly reverse the removal procedures ENWW Power Switch Assembly 55 ...

Page 64: ...d 5 Free the cable from the cable tie that is attached to the chassis 6 Remove the screw that secures the speaker to the inside of the chassis 1 then remove the speaker 2 by sliding it out of the retaining clips To install the speaker reverse the removal procedure When installing the speaker make sure the speaker wires point towards the speaker retaining screw 56 Chapter 7 Removal and Replacement ...

Page 65: ...Panel on page 38 3 Disconnect the serial port cable from the system board 4 Disconnect the serial port cable from the two clips 1 mounted on the inside of the chassis 5 Remove the two retaining screws from the outside of the chassis that secure the serial port to the chassis 2 and remove the serial port ENWW Second Serial Port 57 ...

Page 66: ...the fan that secures the CPU power cable 2 to the fan 5 Remove the screws that secure the fan to the chassis and remove the fan To install the fan reverse the removal procedures NOTE When installing the fan the CPU power cable must be plugged into the system board before securing the cable to the bottom of the fan cage This will ensure that the cable is properly positioned 58 Chapter 7 Removal and...

Page 67: ...tsink make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor New heatsinks come from the factory with fresh thermal grease already applied Position the heatsink so that fan wiring is closest to the power supply Check to ensure that the heatsink mounting lugs do not rest on any electrical components before tightening the...

Page 68: ...e 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 lever If reusing the existing hea...

Page 69: ...g screws should be tightened in diagonally opposite pairs as in an X to evenly seat the heatsink on 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 NOTE After installing a new processor onto the system board always update the system ROM to ensure that the latest version of the BIOS is being used on ...

Page 70: ... on page 59 7 Remove the 6 screws that secure the system board to the chassis 1 8 Slide the system board towards the front of the chassis 2 then remove it from the chassis NOTE The system board in the computer may look slightly different from the one shown here To install the system board reverse the removal procedure NOTE After installing a new system board always update the system ROM to ensure ...

Page 71: ...ompaq spare designated for this product CAUTION Before replacing the battery it is important to back up the computer CMOS settings When the battery is removed or replaced the CMOS settings will be cleared Refer to the Troubleshooting Guide for information on backing up the CMOS settings NOTE Batteries battery packs and accumulators should not be disposed of together with the general household wast...

Page 72: ...ally secures the battery in the proper position 4 Replace the computer access panel 5 Plug in the computer and turn on power to the computer 6 Reset the date and time your passwords and any special system setups using Computer Setup Refer to the Computer Setup F10 Utility Guide 64 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 73: ...dge of the replacement battery 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 ENWW ...

Page 74: ...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 66 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 75: ...1 Prepare the computer for disassembly Preparation for Disassembly on page 37 2 Remove the access panel Access Panel on page 38 3 Disconnect all power cables from the mass storage devices and from the system board 4 Cut the tie wrap 1 at the bottom of the fan that secures the CPU power cable 2 to the fan cage 5 Remove the 4 screws 1 that secure the power supply to the chassis 6 Slide the power sup...

Page 76: ...wer cable to the system board use the tie wrap provided in the spares kit to secure the cable to the lower right corner of the fan cage This will prevent the wire bundle from interfering with the chassis fan blades 68 Chapter 7 Removal and Replacement Procedures Microtower MT Chassis ENWW ...

Page 77: ...me 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 Ethernet BNC Connector and Icon Pin Signal 1 2 Data Ground ENWW Keyboard 69 ...

Page 78: ... Signal Pin Signal 1 2 3 4 Ground Negative AUI Differential Collision Positive AUI Differential Collision Negative AUI Differential Transmit 9 10 11 12 Positive AUI Differential Receive 12V Ground Ground 5 6 7 8 Positive AUI Differential Transmit Ground Ground Negative AUI Differential Receive 13 14 15 16 Unused Unused Unused Unused 70 Appendix A Connector Pin Assignments ENWW ...

Page 79: ... 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 USB Connector and Icon Pin Signal 1 2 3 4 5 VDC Data Data Ground ENW...

Page 80: ...round Headphone 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 72 Appendix A Connector Pin Assignm...

Page 81: ...Not Used Not Used Not Used Monitor Connector and Icon Pin Signal Pin Signal 1 2 3 4 Red Analog Green Analog Blue Analog Not used 9 10 11 12 5V fused Ground Not used DDC Serial Data 5 6 7 8 Ground Ground Ground Ground 13 14 15 Horizontal Sync Vertical Sync DDC Serial Clock ENWW External Infrared Transceiver 73 ...

Page 82: ...Direction In Ground Step 29 30 31 32 Ground Read Data Ground Side 1 Select 9 10 11 12 Ground Reserved Ground Drive Select 21 22 23 24 Ground Write data Ground Write Gate 33 34 Ground Disk Change 24 Pin Power Connector 24 12 13 1 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 2...

Page 83: ...2 PWRGD 3 3V 3 3V Tach GND Fan CMD 13 14 15 16 17 18 12V 5V Sense GND 5V 5V 3 3V 19 20 21 22 23 24 GND 3 3V Sense 3 3V 3 3V GND 12V 4 Pin Power for CPU Connector and Icon Pin Signal 1 2 3 4 GND GND 12V CPU 12V CPU 6 Pin Power for CPU Connector and Icon Pin Signal 6 4 1 2 3 4 5 6 GND GND GND 12V CPU 12V CPU 12V ENWW 24 Pin MicroFit Power 75 ...

Page 84: ...Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 PRSNT1 12V 12V GND JTAG2 6 7 8 9 10 JTAG3 JTAG4 JTAG5 3 3V 3 3V 11 12 13 14 15 PERST GND REFCLK REFCLK GND 16 17 18 19 20 PERp0 PERn0 GND RSVD GND 21 22 23 24 25 PERp1 PERn1 GND GND PERp2 26 27 28 29 30 PERn 2 GND GND PERp3 PERn3 31 32 33 34 35 GND RSVD RSVD GND PERp4 36 37 38 39 40 PERn4 GND GND PERp5 PERn5 41 42 43 44 45 GND GND PE...

Page 85: ... 49 x16 PCI Express uses pins 1 8 PCI Express x1 x4 x8 and x16 PCI Express Connector Pin B Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal 1 2 3 4 5 12V 12V RSVD GND SMCLK 6 7 8 9 10 SMDAT GND 3 3 V JTAG1 3 3vAux 11 12 13 14 15 WAKE RSVD GND PETp0 PETn0 16 17 18 19 20 GND GND PETp1 PETn1 21 22 23 24 25 GND GND PETp2 PETn2 GND 26 27 28 29 30 GND PETp3 PETn3 GND RSVD 31 32 33 34 35 PRSNT2 GND...

Page 86: ...s uses pins 1 32 x8 PCI Express uses pins 1 49 x16 PCI Express uses pins 1 8 DVI Connector Connector and Icon Pin Signal Pin Signal 1 2 3 4 T M D S Data2 T M D S Data2 T M D S Data2 4 Shield T M D S Data4 13 14 15 16 T M D S Data3 5V Power Ground for 5V Hot Pug Detect 5 6 7 8 T M D S Data4 DDC Clock DDC Data No Connect 17 18 19 20 T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 9 ...

Page 87: ...12 T M D S Data3 24 T M D S Clock ENWW DVI Connector 79 ...

Page 88: ...80 Appendix A Connector Pin Assignments ENWW ...

Page 89: ...e 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 6 m 12 feet The power cord should be routed so that it is not l...

Page 90: ...cation 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 mark and registration number in accordance with the Japanese De...

Page 91: ...ness and contrast controls of the monitor if the monitor is dim Press and hold any key If the system beeps then the keyboard should be operating correctly Check all cable connections for loose connections or incorrect connections Wake the computer by pressing any key on the keyboard or pressing the power button If the system remains in suspend mode for more than four seconds shut down the computer...

Page 92: ... 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 cord from ...

Page 93: ...ing 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 functional 1 Press and hold the power button for at least four seconds until the computer turns off 2 Disconnect the power cord from the electrical outlet Computer will not respond to USB keyboard or mouse Cause Solution System has locked up Restart compu...

Page 94: ...rd 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 reserved memory back to the system Restart the computer Virus resident on the hard drive Run virus protection program Too many applications running 1 Close unnecessary applications to free up ...

Page 95: ...y or click 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 cho...

Page 96: ...power cables 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...

Page 97: ...ower 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 WARNING Rotating fan blades can cause serious bodily harm Be sure to keep your hands away from the rotating blades 3 If fan is plugged in and seated properly but is not spinning then replace proces...

Page 98: ...ng 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 Open hood and check that the power ...

Page 99: ...power cord set requirements 81 D device drivers installing 1 diagnostic tool for hard drives 23 diagnostics utility 13 disassembly preparation 37 diskette drive cable pin assignments 74 diskette drive power pin assignments 72 drive 5 25 removal and replacement 50 hard drive removal and replacement 51 drive positions 49 drive protecting 23 DriveLock applications 23 using 22 DVI pin assignments 78 E...

Page 100: ...50 access pannel 38 battery 63 expansion card 45 expansion slot cover lock 44 front bezel 39 front I O panel 54 hard drive 51 53 heatsink 59 memory 42 power switch assembly 55 processor 60 speaker 56 system board 62 system fan 58 removal and replacement serial port 57 Restore Plus CD 2 ROM flash 21 S safety precautions cleaning 32 SATA connectors on system board 25 data cable pinouts 25 hard drive...

Page 101: ...W Web sites BIOS download 21 ROM Flash 21 software support 22 ENWW Index 93 ...

Page 102: ...94 Index ENWW ...

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HP Compaq dx2308, Service & Reference Manual

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