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HP dx7510, dx7518, Compaq dx7518 Service & Reference Manual

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Service Reference Guide
HP Compaq dx7510/dx7518 Business PC
© Copyright 2009 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.
The only warranties for HP products and services are set forth in the express warranty statements accompanying 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 Hewlett-Packard Company.
Service Reference Guide
Business PCs
First Edition (April 2009)
Document Part Number: 516947-001
About This Book
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 could result in damage
to equipment or loss of information.
NOTE: Text set off in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Installing and Customizing the Software
Installing the Operating System ........................................................................................................... 1
Installing or Upgrading Device Drivers ................................................................................................. 1
HP Backup and Recovery Manager ..................................................................................................... 1
2 Computer Setup (F10) Utility
Computer Setup (F10) Utilities ............................................................................................................. 3
Using Computer Setup (F10) Utilities .................................................................................. 3
Computer Setup—System Information ................................................................................ 5
Computer Setup—Standard CMOS Features ..................................................................... 6
Computer Setup—Advanced BIOS Features ...................................................................... 7
Computer Setup—Advanced Chipset Features ................................................................... 8
Computer 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
Test Tab ............................................................................................................................. 16
Status Tab ......................................................................................................................... 17
Log Tab .............................................................................................................................. 18
Help Tab ............................................................................................................................ 18
Saving and Printing Information in HP Insight Diagnostics ................................................ 18
Downloading the Latest Version of HP Insight Diagnostics ............................................... 19
Protecting the Software ...................................................................................................................... 19
HP Backup and Recovery Manager ................................................................................................... 20
v
4 Serial ATA (SATA) Drive Guidelines and Features
SATA Hard Drives .............................................................................................................................. 21
SATA Hard Drive Cables .................................................................................................................... 21
SATA Data Cable .............................................................................................................. 21
SMART ATA Drives ............................................................................................................................ 22
Hard Drive Capacities ........................................................................................................................ 22
5 Identifying the Chassis, Routine Care, and Disassembly Preparation
Chassis Designations ......................................................................................................................... 23
Microtower (MT) ................................................................................................................. 23
Electrostatic Discharge Information .................................................................................................... 24
Generating Static ............................................................................................................... 24
Preventing Electrostatic Damage to Equipment ................................................................ 25
Personal Grounding Methods and Equipment ................................................................... 25
Grounding the Work Area .................................................................................................. 26
Recommended 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 Procedures Microtower (MT) Chassis
Serial Number Location ...................................................................................................................... 31
Preparation for Disassembly .............................................................................................................. 32
Access Panel ...................................................................................................................................... 33
Front Bezel ......................................................................................................................................... 34
Bezel Blanks ....................................................................................................................................... 35
Installing Additional Memory .............................................................................................................. 36
DIMMs ............................................................................................................................... 36
DDR3-SDRAM DIMMs ...................................................................................................... 36
Populating DIMM Sockets ................................................................................................. 37
Installing DIMMs ................................................................................................................ 38
Expansion Cards ................................................................................................................................ 40
vi
Cable Management ........................................................................................................................... 44
Cable Connections ............................................................................................................ 45
Drives ................................................................................................................................................. 46
Drive Positions .................................................................................................................. 46
Installing Additional Drives ................................................................................................. 47
System Board Drive Connections ..................................................................... 48
Removing an Optical Drive ............................................................................... 49
Installing an Optical Drive into the 5.25-inch Drive Bay .................................... 50
Removing an External 3.5-inch Drive ................................................................ 51
Installing a Drive into the 3.5-inch External Drive Bay ...................................... 53
Removing an Internal 3.5-inch Hard Drive ........................................................ 54
Installing an Internal 3.5-inch Hard 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 Pin Assignments
Keyboard ............................................................................................................................................ 76
Mouse ................................................................................................................................................. 76
Parallel Interface ................................................................................................................................ 77
Serial Interface, Powered and Non-Powered ..................................................................................... 77
USB .................................................................................................................................................... 78
Microphone ......................................................................................................................................... 78
Headphone ......................................................................................................................................... 78
Line-in Audio ...................................................................................................................................... 78
Line-out Audio .................................................................................................................................... 78
Monitor ............................................................................................................................................... 79
24-Pin Power ...................................................................................................................................... 79
vii
PCI Express ...................................................................................................................................... 80
PCI Express ...................................................................................................................................... 81
4-Pin Power (for CPU) ........................................................................................................................ 82
Appendix B Power Cord Set Requirements
General Requirements ....................................................................................................................... 83
Japanese Power Cord Requirements ................................................................................................ 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
1 Installing and Customizing the Software
NOTE: If the computer was shipped with Windows Vista loaded, you will be prompted to register the
computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen.
CAUTION: Do not add optional hardware or third-party devices to the computer until the operating
system is successfully installed. Doing so may cause errors and prevent the operating system from installing properly.
Installing the Operating System
The first time you turn on the computer, the operating system is installed automatically. This process takes about 5 to 10 minutes, depending on which operating system is being installed. Carefully read and follow the instructions on the screen to complete the installation.
CAUTION: Once the automatic installation has begun, DO NOT TURN OFF THE COMPUTER UNTIL
THE PROCESS IS COMPLETE. Turning off the computer during the installation process may damage the software that runs the computer or prevent 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 Device Drivers
When installing optional hardware devices after the operating system installation is complete, you must also install the drivers for each of the devices.
If prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse button in the dialog box to locate the i386 folder. This action points the operating system to the appropriate drivers.
Obtain the latest support software, including support software for the operating system from
http://www.hp.com/support. Select your country and language, select Download drivers and software
(and firmware), enter the model number of the computer, and press Enter.
HP Backup and Recovery Manager
The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create
Installing the Operating System 1
backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived separately from regular backups.
HP Backup and Recovery Manager is preinstalled on the C: drive and creates a Recovery Partition.
Recovery Points and file backups can be copied to CD or DVD discs, while all backups can be copied to network or secondary hard disks.
HP highly recommends that you create a Recovery 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 Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start > HP Backup and Recovery > HP Backup and Recovery
Manager Manual.
NOTE: You can order a Recovery Disc Set from HP by calling the HP support center. Go to the
following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region.
http://welcome.hp.com/country/us/en/wwcontact_us.html
2 Chapter 1 Installing and Customizing the Software
2 Computer Setup (F10) Utility
Computer Setup (F10) Utilities
Use Computer Setup (F10) Utility to do the following:
●
Change factory default settings.
●
Set the system date and time.
●
Set, view, change, or verify the system configuration, including settings for processor, graphics, memory, audio, storage, communications, and input devices.
●
Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or USB flash media devices.
●
Enable or disable Quick Power-On Self Test, which is faster than a full boot but does not run all of the diagnostic tests run during a full boot.
●
Enter the Asset Tag or property identification number assigned by the company to this computer.
●
Establish a supervisor password that controls access 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 Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps:
1. Turn on or restart the computer.
2. As soon as the computer is turned on, press and hold theF10 key until you enter Computer Setup.
NOTE: If you do not press F10 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.
Computer Setup (F10) Utilities 3
Eight menu headings appear on the Computer Setup Utility screen:
●
System Information
●
Standard CMOS Features
●
Advanced BIOS Features
●
Advanced Chipset Features
●
Integrated Peripherals
●
Power Management Setup
●
PnP/PCI Configurations
●
Hardware Monitor Setup
Five action choices are listed on the Computer Setup Utility screen:
●
Load Optimized Defaults
●
Set Supervisor Password
●
Set User Password
●
Save & Exit Setup
●
Exit Without Saving
Use the arrow keys to select the appropriate heading, then press Enter. Use the 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 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) Utility Main Menu
Heading Table
System Information Table 2-2 Computer Setup—System Information on page 5
Standard CMOS Features Table 2-3 Computer Setup—Standard CMOS Features
on page 6
Advanced BIOS Features Table 2-4 Computer Setup—Advanced BIOS Features
on page 7
Advanced Chipset Features Table 2-5 Computer Setup—Advanced Chipset Features
on page 8
Integrated Peripherals Table 2-6 Computer Setup—Integrated Peripherals
on page 9
4 Chapter 2 Computer Setup (F10) Utility
Power Management Setup Table 2-7 Computer Setup—Power Management Setup
on page 10
PnP/PCI Configurations Computer Setup—PnP/PCI Configurations on page 10
Hardware Monitor Setup Table 2-9 Computer Setup—Hardware Monitor Setup
on page 11
(Action Choices) Table 2-10 Computer Setup—(Action Choices) on page 12
Computer Setup—System Information
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-2 Computer 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 only)
DDR3 Memory Size (view only)
UUID (view only)
Chassis Serial Number (view only)
Asset Tag Number Enter asset tag number assigned by the company.
Integrated MAC (view only)
Table 2-1 Computer Setup (F10) Utility Main Menu (continued)
Computer Setup (F10) Utilities 5
Computer Setup—Standard CMOS Features
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-3 Computer Setup—Standard CMOS Features
Option Description
Date (mm:dd:yy) Allows you to set system date.
Time (hh:mm:ss) Allows you to set system time.
Floppy Drive A Allows 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 Extended Self-Test
SATA Mode Allows you to set the SATA mode to:
●
IDE
●
AHCI
6 Chapter 2 Computer Setup (F10) Utility
Legacy Mode Support Disables/enables legacy mode support.
Halt On Allows you to set POST error behavior to:
●
All Errors
●
No Errors
●
All but Keyboard
●
All but Diskette
●
All but Diskette/Keyboard
Computer Setup—Advanced BIOS Features
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-4 Computer Setup—Advanced BIOS Features
Option Description
F11 Prompt Setting this feature to displayed will display the text F11 = Recovery during POST. Hiding this feature
prevents the text from being displayed. However, pressing F11 will still attempt to boot to the HP Backup and Recovery partition.
Quick Power On Self Test
Disables/enables the 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 priority in the boot sequence and is recognized as drive C (if any devices are attached).
CD-ROM Boot Priority Allows you to specify the order in which attached optical drives (including USB ODD) are checked
for a bootable operating system image.
Network Boot Priority Allows you to specify the order in which network devices (including UP NIC cards) are checked for
a bootable operating system image.
Table 2-3 Computer Setup—Standard CMOS Features (continued)
Computer Setup (F10) Utilities 7
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:
●
Removable
●
Hard Disk
●
CDROM
●
Network
●
Disabled
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system
has started.
Boot Other Device Disables/enables boot other device.
Load Boot Menu Selectable
Disables/enables boot menu selectable.
APIC Mode Disables/enables the Advanced-PIC mode.
System Keyboard Allows you to set the system keyboard to Absent or Present.
Boot Up NumLock Status
Allows you to set the 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 hardware
configuration.
Table 2-5 Computer Setup—Advanced Chipset Features
Option Description
On-Chip Frame Buffer Size
(VGA Setting)
Select the On-Chip Frame Buffer Size to:
●
32MB
●
64MB
●
128MB
PEG/Onchip VGA Control
Allows you to set VGA control to:
●
Onchip VGA
●
PEG port
●
Auto
DVMT Mode
(VGA Setting)
Disables/enables DVMT mode.
Table 2-4 Computer Setup—Advanced BIOS Features (continued)
8 Chapter 2 Computer Setup (F10) Utility
DVMT/FIXED Memory Size
(VGA Setting)
Allows you to set memory size to:
●
128MB
●
256MB
Init Display First
(VGA Setting)
Allows you to select the primary display device:
●
PCI Slot
●
Onboard
Computer Setup—Integrated Peripherals
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-6 Computer Setup—Integrated Peripherals
Option Description
USB Controller Disables/enables USB controller.
USB Legacy Support Disables/enables USB legacy support.
HD 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 setting for the onboard serial port:
●
Disabled
●
3F8/IRQ4
●
2F8/IRQ3
●
3E8/IRQ4
●
2E8/IRQ3
●
Auto
Parallel Port Allows you to select a setting for the onboard parallel port:
●
Disabled
●
378/IRQ7
●
278/IRQ5
●
3BC/IRQ7
Table 2-5 Computer Setup—Advanced Chipset Features (continued)
Computer Setup (F10) Utilities 9
Parallel Port Mode Allows you to select parallel port mode:
●
SPP
●
EPP
●
ECP
●
ECP+EPP
ECP Mode Use DMA If Parallel Port Mode is set to ECP or ECP+EPP, allows you to set the DMA channel for ECP Mode
to 1 or 3.
Computer Setup—Power Management Setup
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-7 Computer Setup—Power Management Setup
Option Description
PCI-E Wake on PME Disables/enables PCI-E Wake on PME.
ACPI Function Disables/enables ACPI functions. Changing this item can make the existing OS unusable.
ACPI Suspend Type Allows you to set type of ACPI sleep mode:
●
S1 (Power On Suspend)
●
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 time the RTC alarm will resume.
Restore on AC/Power Loss
Allows you to select system power loss behavior:
●
Power On
●
Power Off
●
Last State
Computer Setup—PnP/PCI Configurations
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-8 Computer Setup—PnP/PCI Configurations
Option Description
Table 2-6 Computer Setup—Integrated Peripherals (continued)
10 Chapter 2 Computer Setup (F10) Utility
Reset Configuration Data
Disables/enables automatic reconfiguration.
The default is Disabled. Select Enabled to reset Extended System Configuration Data (ESCD) when you exit Setup, if you have installed a new add-on and the system reconfiguration has caused such a serious conflict that the OS cannot boot.
Resources ControlledByAllows you to select whether resources are controlled automatically or manually:
●
Auto (ESCD–Extended Storage Configuration Data)
●
Manual
BIOS can automatically configure all the bootable and Plug-and-Play-compatible devices. If you choose Auto, you cannot select IRQ, DMA and memory base address fields since BIOS automatically assigns them.
IRQ Resources
●
IRQ-3 assigned to
●
IRQ-4 assigned to
●
IRQ-5 assigned to
●
IRQ-7 assigned to
●
IRQ-9 assigned to
●
IRQ-10 assigned to
●
IRQ-11 assigned to
●
IRQ-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—Hardware Monitor Setup
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-9 Computer Setup—Hardware Monitor Setup
Option Description
Reset Case Open Status
Disables/enables resetting of the case open status.
Fan Controller Disables/enables auto fan control mode.
CPU Fan Speed (view only)
System Fan Speed (view only)
CPU Fan Fault Detect Disables/enables detection of CPU failure during POST.
SYS Fan Fault Detect Disables/enables detection of fan failure during POST.
Table 2-8 Computer Setup—PnP/PCI Configurations (continued)
Computer Setup (F10) Utilities 11
Computer Setup—(Action Choices)
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 2-10 Computer Setup—(Action Choices)
Option Description
Load Optimized Defaults
Allows you to reset Computer Setup to factory 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 saving changes.
12 Chapter 2 Computer Setup (F10) Utility
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/Load utility can be found at
http://www.hp.com under the Software & Driver Downloads
for your specific model. Download the firmware files into a folder on a removable storage device. It is recommended that you save any modified computer configuration settings to a diskette, a USB flash media device, or a diskette-like 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.
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.
Recovering the Configuration Settings 13
3 Computer Diagnostic Features
HP Insight Diagnostics
NOTE: HP Insight Diagnostics is included on CD with some computer models only.
The HP Insight Diagnostics utility allows you to view information about the hardware configuration of the computer and perform hardware diagnostic tests on the subsystems of the computer. The utility simplifies the process of effectively identifying, diagnosing, and isolating hardware issues.
The Survey tab is displayed when you invoke HP Insight Diagnostics. This tab shows the current configuration of the computer. From the Survey tab, there is access to several categories of information about the computer. Other tabs provide additional information, including diagnostic test options and test results. The information in each screen of the utility can be saved as an html file and stored on a diskette or USB flash drive.
Use HP Insight Diagnostics to determine if all the devices installed on the computer are recognized 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 to the Documentation and Diagnostics DVD, as described in the steps below, to access HP Insight Diagnostics.
1. While the computer is on, insert the Documentation and Diagnostics DVD into an optical drive on
the computer.
2. Shut down the operating system and turn off the computer.
3. Turn on the computer. The system will boot to the DVD.
NOTE: If the system does not boot to the DVD in the optical drive, you may need to change the
boot order in the Computer Setup (F10) utility so that the system attempts to boot to the optical drive before booting to the hard drive. Refer to the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics DVD for more information.
You can also change the boot order so that the system boots to the optical drive on a one-time basis by pressing the Esc key at startup.
4. Select the appropriate language and click Continue.
14 Chapter 3 Computer Diagnostic Features
NOTE: It is recommended that you accept the assigned default keyboard for your language
unless you want to test your specific keyboard.
5. In the End User License Agreement page, click Agree if you agree with the terms. The HP Insight
Diagnostics utility launches with the Survey tab displayed.
Survey Tab
The Survey tab displays important system configuration information.
In the View level field, you can select the Summary view to see limited configuration data or select the Advanced view to see all the data in the selected category.
In the Category field, you can select the following categories of information to display:
All—Gives a listing of all categories of information about the computer.
Overview—Gives you a listing of general information about the computer.
Architecture—Provides system BIOS and PCI device information.
Asset Control—Shows product name, asset tag, system serial number, and processor information.
Communication—Shows information about the computer parallel (LPT) and serial (COM) port settings,
plus USB and network controller information.
Graphics—Shows information about the graphics controller of the computer.
Input Devices—Shows information about the keyboard, mouse, 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 connected to the computer. This list includes all fixed disks, diskette drives, and optical drives.
System—Shows information about the computer model, processor, chassis, and BIOS, plus internal speaker and PCI bus information.
Diagnose Tab
NOTE: The Diagnose tab is only available in HP Insight Diagnostics Online Edition.
The Diagnosis feature of the HP Insight Diagnostics Online Edition enables high system availability by performing various non-intrusive, in-depth system and component checks while the operating system is up and running.
There are two types of diagnosis on the Diagnose tab: Smart Array Drive Diagnosis and Power Supply Diagnosis.
The Power Supply Diagnosis allows you to assess the health of select power supply models.
Smart Array Drive Diagnosis is the premier feature of hardware diagnosis and it provides the ability to assess the health of hard disk drives attached to Smart Array controllers and select Modular Smart Array (MSA) products. The Smart Array Drive Diagnosis supports SCSI, serial Advanced Technology
HP Insight Diagnostics 15
Attachment (SATA), and serial attached SCSI (SAS) disk drives that are attached to Smart Array controllers and select MSA controllers configured as part of a logical volume. To determine the health of a hard disk drive, Diagnosis looks at operational history provided by the hard disk drive and proprietary information provided by the Smart Array controller or the MSA controller. HP has found through experience that looking at operational history is one of the best ways to diagnose disk drive problems.
Systems Insight Manager (SIM) and Diagnosis are now the only tools that can be used to qualify the replacement of defective disk drives under pre-failure warranty.
The Smart Array Drive Diagnosis feature should be used:
●
To determine if a disk drive in a fault mode should be replaced.
●
When Systems Insight Manager reports that a disk drive has failed.
●
When there is data corruption or storage related problems but there are no error LEDs or error messages.
●
When there are inconsistent, intermittent, or repeated disk drive failures.
●
To determine the health of 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 logical volumes selected will be displayed on the Status tab when Diagnosis
has completed.
Test Tab
The Test tab allows you to choose various parts of the system to test. You can also choose the type of test and testing mode.
There are three types of tests to choose from:
●
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.
●
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.
●
Custom Test—Provides the most flexibility in controlling the testing of a system. The Custom Test mode allows you to specifically select which devices, tests, and test parameters are run.
16 Chapter 3 Computer Diagnostic Features
For each test type, there are two test modes to choose from:
●
Interactive Mode—Provides maximum control over the testing process. The diagnostic software will prompt you for input during tests that require your interaction. You may also determine whether the test passed or failed.
●
Unattended Mode—Does not display prompts and requires no interaction. If errors are found, they are displayed when testing is complete.
To begin testing:
1. Select the Test tab.
2. Select the tab for the type of test you want to run: Quick, Complete, or Custom.
3. Select the Test Mode: Interactive or Unattended.
4. Choose how you want the test to be executed, either Number of Loops or Total Test Time. When
choosing to run the test over a specified number of loops, enter the number of loops to perform. If you desire to have the diagnostic test for a specified time period, enter the amount of time in minutes.
5. If performing a Quick Test or Complete Test, select the device to be tested from the drop-down
list. If performing a Custom Test, Click the Expand button and select the devices to be tested or click the Check All button to select 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 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 cancel the test.
After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without having to re-enter the data in the Test tab.
The Status tab also shows:
●
The devices being tested
●
The test status (running, passed, or failed) of each device being tested
●
The overall test progress of all devices being tested
●
The test progress for each device being tested
●
The elapsed test times for each device being tested
HP Insight Diagnostics 17
Log Tab
The Log tab contains a Test Log tab and an Error Log tab.
The Test Log displays all tests that have been executed, the number of times of execution, the number of times failed, and the time it took to complete each test. The Clear Test Log button will clear the contents of the Test Log.
The Error Log displays the tests for devices that have failed during the diagnostic testing and includes the following columns of information.
●
The Device section displays the device tested.
●
The Test section displays the type of test run.
●
The Description section describes the error that the diagnostic test found.
●
The Recommended Repair will give a recommended action that should be performed to resolve the failed hardware.
●
The Failed Count is the number of times the device has failed a test.
●
The Error Code provides a numerical code for the failure. The error codes are defined in the Help tab.
The Clear Error Log button will clear the contents of the Error Log.
Help Tab
On the Help tab contains an HP Insight Diagnostics tab, an Error Codes tab, and a Test Components tab.
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 box at the top of the tab and click the Find Error Codes button.
The Test Components tab displays low-level information on tests that are run.
Saving and Printing Information in HP Insight Diagnostics
You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a USB
2.0 flash drive (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen.
1. Insert a USB 2.0 flash drive (capacity must be 64MB or higher). USB 1.0 flash drives are not
supported.
2. Click Save in the bottom right corner of the screen.
3. Select Save to the floppy or Save to USB key.
4. Enter a file name in the File Name box and click the Save button. An html file will be saved to the
inserted USB flash drive.
18 Chapter 3 Computer Diagnostic Features
NOTE: Do not remove the USB key until you see a message indicating that the html file has been
written to the media.
5. Print the information from the storage device used to save it.
NOTE: To exit HP Insight Diagnostics, click the Exit Diagnostics button in the bottom left corner of
the screen then remove the Documentation and Diagnostics DVD 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, 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 from loss or damage, you should keep a backup copy of all system software, applications, and related files stored on the hard drive. See the operating system or backup utility documentation for instructions on making backup copies of data files.
Protecting the Software 19
HP Backup and Recovery Manager
The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived separately from regular backups.
HP Backup and Recovery Manager is preinstalled on the C: drive and creates a Recovery Partition.
Recovery Points and file backups can be copied to CD or DVD discs, while all backups can be copied to network or secondary hard disks.
HP highly recommends that you create a Recovery 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 Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start > HP Backup and Recovery > HP Backup and Recovery
Manager Manual.
NOTE: You can order a Recovery Disc Set from HP by calling the HP support center. Go to the
following Web site, select your region, and click the Technical support after you buy link under the Call HP heading to obtain the support center telephone number for your region.
http://welcome.hp.com/country/us/en/wwcontact_us.html
20 Chapter 3 Computer Diagnostic Features
4 Serial ATA (SATA) Drive Guidelines and
Features
NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel ATA
(PATA) drives are supported.
SATA Hard Drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage differential 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 data cable and never bend it tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
SATA Hard Drives 21
SMART ATA Drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is imminent, it generates a fault alert.
Hard Drive Capacities
The combination of the file system and the operating system used in the computer determines the maximum usable size of 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 hard drive or listed in the computer specification. Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by Microsoft are bytes to the base 2.
Drive/Partition Capacity Limits
Maximum Size
File System Controller Type Operating System Partition Drive
FAT 32 ATA Windows 2000/XP/Vista 32 GB 2 TB
NTFS ATA Windows 2000/XP/Vista 2 TB 2 TB
22 Chapter 4 Serial ATA (SATA) Drive Guidelines and Features
5 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 23
Figure 5-2 HP Compaq dx7518 Microtower
NOTE: The appearance of the front bezel may vary.
Electrostatic Discharge Information
A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has 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 humidity decreases.
Relative Humidity
Event
55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs* from plastic tube
7,500 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
24 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
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 degrade a product.
Preventing Electrostatic Damage to Equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories.
●
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
●
Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●
Place items on a 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:
●
Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.
●
Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method
Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Electrostatic Discharge Information 25
Grounding the 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 PCB laminate. Handle them only at static-free work areas.
●
Turn off power and input signals before inserting and removing connectors or test equipment.
●
Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.
●
Keep work area free of nonconductive materials such 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
●
Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
●
Static-dissipative table or floor mats with hard tie 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
26 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
Operating Guidelines
To prevent overheating and to help prolong the life of the computer:
●
Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
●
Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
●
Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also restricts airflow.
●
Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign matter can block the vents and limit the airflow. Be sure to unplug the computer before cleaning the air vents.
●
Never operate the computer with the cover or side panel removed.
●
Do not stack computers on top of each other or place computers so near each other that they are subject to 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 functions of the operating system or other software, including sleep states.
Routine Care
General Cleaning Safety Precautions
1. Never use solvents or flammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then
use the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.
Cleaning the Computer Case
Follow all safety precautions in General Cleaning Safety Precautions on page 27 before cleaning the computer.
Operating Guidelines 27
To clean the computer case, follow the procedures described below:
●
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
●
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth or swab dampened with clear water.
●
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will evaporate quickly and not leave a residue.
●
After cleaning, always wipe the unit with a clean, lint-free cloth.
●
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow.
Cleaning the Keyboard
Follow all safety precautions in General Cleaning Safety Precautions on page 27 before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
Cleaning the
Computer Case on page 27.
When cleaning debris from under the keys, review all rules in
General Cleaning Safety Precautions
on page 27 before following these procedures:
CAUTION: Use safety glasses equipped with side shields before attempting to clean 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 through many electronic supply outlets.
CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys
are improperly removed or installed, the keyboard may not function properly.
●
Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to remove any fibers or dirt in confined areas. Allow the parts to air dry before reassembly.
Cleaning the Monitor
●
Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into the housing and damage a component. Never use solvents or flammable liquids on the monitor.
●
To clean the monitor body follow the procedures in
Cleaning the Computer Case on page 27.
28 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
Cleaning the Mouse
Before cleaning the mouse, ensure that the power to the computer is turned off.
●
Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.
●
To clean the mouse body, follow the procedures in
Cleaning the Computer Case on page 27.
Service Considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.
Power Supply Fan
The power supply fan is a variable-speed fan based on the temperature in the power supply.
CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is
off when the computer is in “Standby,” “Suspend,” or “Off” modes.
You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
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 FailSafe Key, PN 166527-001) or HP tamper­resistant bits (Smart Cover FailSafe Key, PN 166527-002)
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard
drives only.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the
work area to prevent damage.
Service Considerations 29
Cables and Connectors
Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location during
the reassembly process. Improper cable placement can damage the computer.
Hard Drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.
●
If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.”
●
Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.
●
Avoid dropping drives from any height onto any surface.
●
If you are inserting or removing a hard drive, turn 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 24
●
Do not use excessive force when inserting a drive.
●
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields such as monitors or speakers.
Lithium Coin Cell Battery
The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years.
See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the battery.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the general
household waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, their authorized partners, or their agents.
30 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
6 Removal and Replacement Procedures
Microtower (MT) Chassis
Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics 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: Model dx7510 shown.
Serial Number Location 31
Preparation for Disassembly
1. Close any open software applications.
2. Exit the operating system.
3. Remove any diskette or compact disc from the computer.
4. Turn off the computer and any peripheral devices that are connected to it.
CAUTION: 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 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 screws with the units removed.
CAUTION: The screws used in the computer are of different thread sizes and lengths; using the
wrong screw in an application may damage the unit.
32 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Access Panel
1. Prepare the computer for disassembly (Preparation for Disassembly on page 32).
2. Loosen the captive thumbscrew (1) that secures the access panel 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
Front Bezel
1. Prepare the computer for disassembly (Preparation for Disassembly on page 32).
2. Remove the access panel (
Access Panel on page 33).
3. Press outward on the three 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
Bezel Blanks
On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need to be removed before installing a drive. To remove a bezel blank:
1. Follow the instructions described in
Front Bezel on page 34.
2. To remove the 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 front bezel (3).
Figure 6-4 Removing a Bezel Blank
Bezel Blanks 35
Installing Additional Memory
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3­SDRAM) dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 8-GB of memory configured in a high­performing dual channel mode.
DDR3-SDRAM 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 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 operate properly if you install unsupported DIMMs.
36 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM2 operate in memory channel A. Sockets XMM3 and XMM4 operate in memory channel B.
Figure 6-5 DIMM Socket Locations
Table 6-1 DIMM Socket Locations
Item Description Socket Color
1 XMM1 socket, Channel A (populate
first)
White
2 XMM2 socket, Channel A Black
3 XMM3 socket, Channel B (populate
second)
White
4 XMM4 socket, Channel B Black
NOTE: A DIMM must occupy the XMM1 socket.
The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how 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 is populated with two 512MB DIMMs and Channel B is populated with one 1GB DIMM, the system will operate in dual channel mode.
●
The system will operate in flex 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. In flex mode, the channel populated with the least amount of memory describes the total amount of memory assigned to dual channel
Installing Additional Memory 37
and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1GB DIMM, and three 512MB DIMMs, Channel A should be populated with the 1GB DIMM and one 512MB DIMM, and Channel B should be populated with the two 512MB DIMMs. With this configuration, 2GB will run as dual channel and 512MB will run as single channel.
●
In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
Installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to
drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer 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 in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module.
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 memory module sockets on the system board.
WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system
components to cool before touching.
38 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
4. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
Figure 6-6 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
A DIMM must occupy the XMM1 socket. Always populate the white sockets before the black sockets in each channel.
In order to create a dual-channel memory configuration, the memory capacity of Channel A must equal the memory capacity of Channel B. Refer to
Populating 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 access panel.
8. Reconnect the power cord and any external devices, then turn on the computer. The computer
should automatically recognize the additional memory when you turn on the computer.
9. Lock any security devices that were disengaged when the access panel was removed.
Installing Additional Memory 39
Expansion Cards
The computer has two standard PCI expansion slots, one PCI Express x1 expansion slot, and one PCI Express x16 expansion slot. The expansion slots accommodate full-height or half-height expansion cards.
Figure 6-7 Expansion Slot Locations
Table 6-2 Expansion Slot Locations
Item Description
1 PCI expansion slot
2 PCI expansion slot
3 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 board and the corresponding expansion
slot on the back of the computer chassis.
40 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
4. On the rear of the computer, a slot cover lock secures the expansion card brackets in place.
Remove the screw from the slot cover lock then slide the slot cover lock up to remove it from the chassis.
Figure 6-8 Opening the Slot Cover Lock
5. Before installing an expansion card, remove the 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 card you are installing.
Figure 6-9 Removing an Expansion Slot Cover
Expansion Cards 41
b. If you are removing a PCI or PCI Express x1 card, hold the 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 the other components.
Figure 6-10 Removing a PCI or PCI Express x1 Expansion Card
c. If you are removing a PCI Express 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 an expansion slot cover to close the open
slot.
42 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
CAUTION: After removing an expansion card, you must replace it with a new card or expansion
slot cover for proper cooling of internal components during operation.
8. To install a new expansion card, hold the card just above the expansion socket on the system
board then move the card toward the rear of the chassis so that the bottom of the bracket on the card slides into 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 the Expansion Cards and Slot Covers
10. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
Expansion Cards 43
11. Lock any security devices that were disengaged when the access panel was removed.
12. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for
instructions on using Computer Setup.
Cable Management
Always follow good cable management practices when working inside the computer.
●
Keep cables away from major heat sources like the heatsink.
●
Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these are not designed to take excessive pressure on them.
●
Some flat ribbon cables come prefolded. Never change 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 steps:
1. Squeeze on the top of the retaining latch attached to the cable end of the connector (1).
2. Grasp the cable end of the connector and pull it straight up (2).
CAUTION: Always pull the connector - NEVER pull on the cable. Pulling on the cable could
damage the cable and result in a failed power supply.
44 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Cable Connections
System board connectors are color-coded to make it easier to find the proper connection.
Connector Name Connector Color Description
ATXPOWER White Power supply, 24-pin
ATX_CPU White Power supply, 4-pin
FLOPPY 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
Cable Management 45
Drives
The computer supports up to five drives that may be installed in various configurations.
This section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive.
Drive Positions
Figure 6-14 Drive Positions
NOTE: Bezel for 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 Computer Setup (F10) Utility Guide for more information.
46 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Installing Additional Drives
When installing additional drives, follow these guidelines:
●
The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA1.
●
Connect the first SATA optical drive to the white SATA connector on the system board labeled SATA2.
●
Connect a second SATA optical drive to the orange SATA4 connector.
●
Connect a second SATA hard drive to the light blue SATA3 connector.
●
Connect 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 drives in the drive cage. Hard drives use 6-32 standard screws. All other drives use M3 metric screws. The HP-supplied 6-32 standard screws (1) are silver. The HP-supplied M3 metric guide screws (2) are black.
Figure 6-15 Extra Drive Retainer Screws Location
Drives 47
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a 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.
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 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 Connections
Table 6-3 System Board Drive Connections
No. System Board Connector System Board Label Color
1 SATA1 SATA1 dark blue
2 SATA2 SATA2 white
3 SATA3 SATA3 light blue
4 SATA4 SATA4 orange
5 Media Card Reader F_USB3 black
6 Diskette Drive FLOPPY black
48 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Removing an Optical Drive
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
To remove an optical drive:
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 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 (2).
Figure 6-18 Removing the Optical Drive
Drives 49
NOTE: To install an optical drive, refer to Installing an Optical Drive into the 5.25-inch Drive Bay
on page 50.
Installing an Optical Drive into the 5.25-inch Drive Bay
To install an optional 5.25-inch optical drive:
1. Prepare the computer for disassembly (
Preparation for Disassembly on page 32).
2. Remove the access panel (
Access Panel on page 33).
3. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove
the bezel blank.
4. If you are adding a drive to an empty lower optical drive bay, you must remove the knockout plate
from the bay. To do so, insert a flat screwdriver into the knockout plate slot and rotate the screwdriver to break the knockout plate out of the chassis. Discard the knockout plate.
5. If the new drive has 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 of the front bezel if needed. The
M3 metric retainer screws for optical drives are black. Refer to
Installing Additional Drives
on page 47 for an illustration of the retainer screws location.
Figure 6-19 Installing the Optical Drive
7. If the system configuration includes only one optical drive, connect the SATA data cable to the
white system board connector labeled SATA2. If you are adding a second optical drive, connect the SATA data cable to the orange system board connector labeled SATA4.
50 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
8. Connect the power cable (1) and data cable (2) to the rear of the optical drive.
Figure 6-20 Connecting the Power and Data Cables
9. Replace the front bezel and access panel.
10. Reconnect the power cord and turn on the computer.
11. Lock any security devices that were disengaged when the access panel was removed.
The system automatically 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 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).
Drives 51
5. Disconnect the data cable (1) and power cable (2) from the rear of the drive.
Figure 6-21 Disconnecting the Diskette Drive Cables
6. Remove the two retainer 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
Installing a Drive into the 3.5-inch External Drive Bay
The 3.5-inch external drive bay on the front of the computer can be configured with a media card reader or a diskette drive.
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 front facing toward you.
4. Remove the front bezel (
Front Bezel on page 34).
5. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove
the bezel blank.
6. If you are adding a drive to an empty drive bay for the first time, you must remove the knockout
plate from the bay. To do so, insert a flat screwdriver into the knockout plate slot and rotate the screwdriver to break the knockout plate out of the chassis. Discard the knockout plate.
7. If the new drive has 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 front bezel if needed. The
M3 metric retainer screws for diskette drives or media card readers are black. Refer to
Installing
Additional Drives on page 47 for an illustration of the retainer screws location.
Figure 6-23 Installing a 3.5-inch Device (Diskette Drive Shown)
9. Connect the appropriate drive cables:
a. If installing a diskette drive, connect the power and data cables to the rear of the drive and
connect the other end of the data cable to the connector on the system board labeled FLOPPY.
b. If installing a media card reader, connect the USB cable from the media card reader to the
USB connector on the system board labeled F_USB3.
Drives 53
NOTE: Refer to System Board Drive Connections on page 48 for an illustration of the system
board drive connectors.
10. Replace the front bezel and access panel.
11. Lock any security devices that were disengaged when the access panel was removed.
Removing an Internal 3.5-inch Hard Drive
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive. Also, if you are replacing 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 33).
3. Lay the computer on its side with the front facing toward you.
4. Remove the two screws that secure the hard drive cage to the chassis.
Figure 6-24 Removing the Hard Drive Cage Screws
54 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
5. Push down the latch on the side of the 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
7. Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
Figure 6-27 Disconnecting the Hard Drive Cables
8. Remove the four 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
Installing an Internal 3.5-inch Hard Drive
1. Follow the steps in Removing an Internal 3.5-inch Hard Drive on page 54 to remove the hard drive
cage and, if necessary, the existing hard drive.
2. Slide the new drive into the hard drive cage (1), aligning the drive with the four screw holes on the
cage. Install the four 6-32 standard screws that secure the hard disk drive 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. Refer to
Installing
Additional Drives on page 47 for an illustration of the retainer screws location.
Figure 6-29 Installing the Hard Drive in the Drive Cage
Drives 57
3. Connect the power cable (1) and data cable (2) to the back of the hard drive.
Figure 6-30 Connecting the Hard Drive Cables
CAUTION: Never crease 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
5. Attach the two screws that secure the hard drive cage to the chassis.
Figure 6-32 Securing the Hard Drive Cage
6. If installing a new drive, connect the opposite end of the data cable to the appropriate system board
connector.
NOTE: If your system has only one SATA hard drive, you must connect the hard drive data cable
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 the operating
system, software drivers, and any software applications that were preinstalled on the computer.
Drives 59
Front I/O and USB Panel Housing Assembly
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 front facing toward you.
4. Remove 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 Replacement Procedures Microtower (MT) Chassis
Power Switch/LED Assembly
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 front facing toward you.
4. Remove the front bezel (
Front Bezel on page 34).
5. Remove the optical drive (
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 the power switch/LED assembly, reverse the removal procedures.
Power Switch/LED Assembly 61
Speaker
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 front facing toward you.
4. Remove the front bezel (
Front Bezel on page 34).
5. Disconnect 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 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
System Fan
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. 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
Heatsink assembly
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. Disconnect the heatsink fan control cable from the system board.
5. Loosen the four captive screws that secure the heatsink to the system board.
6. Lift the heatsink from the processor and set it on its side to keep from contaminating 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 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.
64 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
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. Disconnect the heatsink control cable from the system board and remove the heatsink
Heatsink
assembly on page 64).
5. Rotate the locking lever to its full open position (1).
6. Raise and rotate the microprocessor retainer to its full open position (2)
7. Carefully lift the processor from the socket (3).
CAUTION: Do NOT handle the pins in the processor 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 lever.
If reusing the existing heatsink, go to step 3.
If using a new heatsink, go to step 6.
3. If reusing the existing heatsink, clean the bottom of the heatsink with the alcohol pad provided in
the spares kit.
4. Apply the thermal grease provided in the spares kit to the top of the processor and install the
heatsink atop the processor.
Processor 65
5. Go to step 7.
6. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place
it in position atop the processor.
7. Secure the heatsink to the system board and system board tray with the 4 captive screws and
attach the heatsink control cable to the system board.
CAUTION: Heatsink retaining 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 the computer. The latest system ROM BIOS can be 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 the red switch to the setting (230 V or 115
V) appropriate for the country in which the computer is used. Spare power supplies normally arrive set for 230 V.
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. Disconnect all power cables from the mass storage devices and from the system board.
5. Remove the four screws that secure the power supply to the chassis.
66 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
6. Press the release latch on the chassis base, and then lift up the rear of the power supply to
disengage it from the chassis.
7. Slide the power supply toward the front/bottom of the computer, then lift the power supply out of
the computer.
To install the power supply, reverse the removal procedure.
System Board
When replacing the system board, be sure that the following components are removed from the 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. Disconnect the power, and data cables from the back of all installed drives.
7. Disconnect all cables from the system board.
8. Remove the eight screws that secure the system board to the chassis.
System Board 67
9. Slide the system board toward the front of the chassis, and then lift it up and out of 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: When replacing the system board, you must also change the chassis serial number in the
BIOS.
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 at:
http:///\h18000.www1.hp.com/support/files.
Battery
The battery that comes with your computer provides power to the real-time clock and has a lifetime of about 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 an internal lithium manganese dioxide battery. There is a risk of
fire and burns if the battery is not handled properly. To reduce the risk of personal injury:
❑
Do not attempt to recharge the battery.
❑
Do not expose to temperatures higher than 60°C (140°F)
❑
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
❑
Replace the battery only with the HP/Compaq spare designated for this product.
68 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
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 waste. In order to forward them to recycling or proper disposal, please use the public collection system or return them to HP, its authorized partners, or its agents.
CAUTION: Static electricity can damage the electronic components of the computer or optional
equipment. Before beginning 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 Battery Holder
1. Lift the battery out of its holder.
2. Slide the replacement battery into position, positive side up.
3. The battery holder automatically 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.
Battery 69
Type 2 Battery Holder
1. To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
2. To insert the new battery, slide one edge 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.
70 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Type 3 Battery Holder
1. Pull back on the clip (1) that holds the battery in place, then remove the battery (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
Installing a Security Lock
The security 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
HP Business PC Security Lock
1. Fasten the 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
3. Screw the lock to the chassis using the screw provided.
Figure 6-37 Attaching 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
Hood Sensor
The hood sensor will sound an alarm if the access panel is removed while there is still power to the computer. If the alarm sounds, unplug the computer and leave it unplugged 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
A Connector Pin Assignments
This appendix contains the pin assignments for many computer and workstation 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
Parallel Interface
Connector and Icon
Pin Signal Pin Signal
1
2
3
4
Strobe
Data Bit 0
Data Bit 1
Data Bit 2
10
11
12
13
Acknowledge
Busy
Paper End
Select
5
6
7
8
Data Bit 3
Data Bit 4
Data 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
USB
Connector and Icon Pin Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Microphone
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Audio_Right
Ground
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
78 Appendix A Connector Pin Assignments
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
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
PCI Express
x1, x4, x8, and x16 PCI Express Connector
Pin A
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
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
8182PERn15
GND
Pin B information is on the next page
NOTE: x1 PCI Express uses pins 1-18
x4 PCI Express uses pins 1-32
x8 PCI Express uses pins 1-49
x16 PCI Express uses pins 1-8
80 Appendix A Connector Pin Assignments
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
PETp4
PETn4
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
8182PRSNT2#
RSVD
Pin B information is on the next page
NOTE: x1 PCI Express uses pins 1-18
x4 PCI Express uses pins 1-32
x8 PCI Express uses pins 1-49
x16 PCI Express uses pins 1-8
PCI Express 81
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
B Power Cord Set Requirements
The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
The power cord set received with the computer meets the requirements for use in the country where you purchased the equipment.
Power cord sets for use in other countries must meet the requirements of the country where you use the computer.
General Requirements
The requirements listed below are applicable to all countries:
1. The power cord must be approved by an acceptable accredited 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 mm
2
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 likely to be walked on or pinched by items placed upon it or against it. Particular attention should be paid to the plug, electrical outlet, and the point where the cord exits from the product.
WARNING! Do not operate this product with a damaged power cord set. If the power cord set is
damaged in any manner, replace it immediately.
Japanese Power Cord Requirements
For use in Japan, use only the power cord received with this product.
CAUTION: Do not use the power cord received with this product on any other products.
General Requirements 83
Country-Specific Requirements
Additional requirements specific to a country are shown in parentheses and explained below.
Country Accrediting Agency Country Accrediting Agency
Australia (1)
Austria (1)
Belgium (1)
Canada (2)
EANSW
OVE
CEBC
CSA
Italy (1)
Japan (3)
Norway (1)
Sweden (1)
IMQ
METI
NEMKO
SEMKO
Denmark (1)
Finland (1)
France (1)
Germany (1)
DEMKO
SETI
UTE
VDE
Switzerland (1)
United Kingdom (1)
United States (2)
SEV
BSI
UL
1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm2 conductor size. Power cord set 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” mark and registration number in accordance with the
Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm
2
conductor size. Wall plug must
be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration.
84 Appendix B Power Cord Set Requirements
C Troubleshooting
Safety and Comfort
WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment
may result in discomfort or serious injury. Refer to the Safety & Comfort Guide available on the Web site at
http://www.hp.com/ergo for more information on choosing a workspace and creating a safe and
comfortable work environment.
WARNING! Energized and moving parts inside.
Disconnect power to the equipment before removing the enclosure.
Replace and secure the enclosure before re-energizing the equipment.
Before You Call for Technical Support
If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact problem before calling for technical support.
●
Run the HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup. Refer to the Computer Setup (F10) Utility Guide for more information.
●
Listen for a series 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 working on a network, plug another computer with a different cable into the network connection. There may be a problem with the network plug or cable.
●
If you recently added new hardware, remove the hardware and see if the computer functions properly.
●
If you recently installed new software, uninstall the software and see if the computer functions properly.
●
Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting the operating system, use “Last Known Configuration.”
●
Refer to the comprehensive online technical support at
http://www.hp.com/support.
●
Refer to
Helpful Hints on page 86 in this guide for more general suggestions.
Safety and Comfort 85
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:
http://www.hp.com/go/ispe.
Access the Business Support Center (BSC) at
http://www.hp.com/go/bizsupport for the latest online
support information, software and drivers, proactive notification, and worldwide community of peers and HP experts.
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly:
●
Be in front of your computer when you call.
●
Write down the computer serial number and product ID number, and the monitor serial number before calling.
●
Spend time troubleshooting the problem with the service technician.
●
Remove any hardware that was recently added to your system.
●
Remove any software that was recently installed.
NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized service
provider or dealer.
Helpful Hints
If you encounter problems with the computer, monitor, or software, see the following list of general suggestions before taking further action:
●
Check that the computer and monitor 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.
●
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 by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if automatic start on power loss is set in Computer Setup. If it does not restart, press the power button to start the computer.
●
Reconfigure your computer after installing a non–plug and play expansion board or other option.
●
Be sure that all the needed device drivers have been installed. For example, if you are using a printer, you need a driver for that model printer.
●
Remove all bootable media (diskette, CD, or USB device) from the system before turning it on.
86 Appendix C Troubleshooting
●
If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system.
●
If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) 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 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 the power source before opening the computer to prevent system board or component damage.
Helpful Hints 87
Solving General Problems
You may be able to easily resolve the minor problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact your HP authorized reseller or service provider.
Computer will not turn on.
Cause
Solution
Cables to the external power source are unplugged. Ensure that cables connecting the computer to the external
power source are plugged in properly and the wall outlet is active.
Voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115V or 230V).
Select the proper AC voltage using the selector switch.
A defective PCI card has been installed. Remove any expansion board that was just installed.
Drive data or power supply cables may not be properly connected.
Reseat drive data and power supply cables.
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 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 computer.
Keyboard or mouse is not connected to computer. Connect keyboard and mouse cables to computer.
Computer is in standby mode. To resume from standby mode, press the power button or
press any key.
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.
88 Appendix C Troubleshooting
Computer date and time display is incorrect.
Cause Solution
RTC (real-time clock) battery may need to be replaced.
NOTE: Connecting the computer to a live AC outlet prolongs
the life of the RTC battery.
First, reset the date and time under 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 for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.
Cursor will not move using the arrow keys on the keypad.
Cause
Solution
The Num Lock key may be on. Press the Num Lock key. The Num Lock light should not be on
if you want to use the arrow keys. The Num Lock key can be disabled (or enabled) in Computer Setup.
Poor performance is experienced.
Cause
Solution
Processor is hot. 1. Make sure airflow to the computer is not blocked. Leave
a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the 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 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 memory.
Some applications run in the background and can be closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup, go to Start > Run (Microsoft Windows XP) or Start > All Programs > Accessories > Run (Microsoft Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, uncheck applications that you do not want to launch automatically.
CAUTION: Do not prevent applications from launching
at startup that are required for proper system operation.
2. Add more memory.
Solving General Problems 89
Poor performance is experienced.
Cause Solution
Some software applications, especially games, are stressful on the graphics subsystem
1. Lower the display resolution for the current application or
consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application.
2. Add more memory.
3. Upgrade the graphics solution.
Cause unknown. Restart the computer.
Blank screen (no video).
Cause
Solution
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
The cable connections are not correct. Check the cable connection from the monitor to the computer
and to the electrical outlet.
You may have a screen blanking utility installed or energy saver features are enabled.
Press any key 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 chosen.
Be sure that the monitor can accept the same horizontal scan rate as the resolution chosen.
Monitor cable is plugged into the wrong connector. Ensure that the monitor is plugged into an active connector on
the rear of the computer. If another connector is available, connect the monitor to that connector and reboot the system.
Bad monitor. Try a different monitor.
Computer is beeping and will not start.
Cause
Solution
Internal error has occurred and the computer is beeping a code.
Refer to Interpreting POST Diagnostic Front Panel LEDs and
Audible Codes on page 92 to interpret the error code.
90 Appendix C Troubleshooting
Solving Hardware Installation Problems
You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, the Windows operating system automatically recognizes the device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware. In the Windows operating system, use the Add Hardware Wizard and follow the instructions that appear on the screen.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to the
system board. To reduce the risk of personal injury from electrical shock, rotating fans, and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
Look for the LED on the system board. If the LED is illuminated, the system still has power. Power off the computer and remove the power cord before proceeding.
A new device is not recognized as part of the system.
Cause Solution
Device is not seated or connected properly. Ensure that the device is properly and securely connected and
that pins in the connector are not bent down.
Cable(s) of new external device are loose or 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 them.
Reboot the computer and follow the instructions for accepting the changes.
A plug and play board may not automatically configure when added if the default configuration conflicts with other devices.
Use Windows Device Manager to deselect the automatic settings for the board and choose a basic configuration that does not cause a resource conflict. You can also use Computer Setup to reconfigure or disable devices to resolve the resource conflict.
USB ports on the computer are disabled in Computer Setup. Enter Computer Setup (F10) and enable the USB ports.
Computer will not start.
Cause Solution
Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location.
1. Review the documentation that came with the system to
determine if you are using the correct memory modules and to verify the proper installation.
2. Listen for beeps from the computer. See
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes on page 92 to determine possible causes.
3. If you still cannot resolve the issue, contact Customer
Support.
Solving Hardware Installation Problems 91
Interpreting POST Diagnostic Front Panel LEDs 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.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to the
system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
NOTE: If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the
computer and refer to the following table to determine the front panel LED codes.
Recommended actions in the following table are listed in the order in which they should be performed.
Not all diagnostic lights and audible codes are available on all models.
Table C-1 Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps Possible Cause Recommended Action
Green Power LED On. None Computer on. None
Green Power LED flashes every two seconds.
None Computer in Suspend to
RAM mode (some models only) or normal Suspend mode.
None required. Press 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 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 and installed.
3. If fan is plugged in and seated properly, but
is not spinning, then replace processor fan.
4. Reseat processor heatsink and verify that the
fan assembly is properly attached.
5. Contact an authorized reseller or service
provider.
Red Power LED flashes five times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
5 Pre-video memory error. CAUTION: To avoid damage to the DIMMs or
the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the
faulty module.
3. Replace third-party memory with HP
memory.
4. Replace the system board.
92 Appendix C Troubleshooting
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