Microsoft and Windows are trademarks of
Microsoft Corporation in the U.S. and other
countries.
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.
Maintenance & Service Guide
First Edition (August 2012)
Document Part Number: 701463-001
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 Product Features ............................................................................................................................................ 1
Stand .................................................................................................................................................. 36
Metal plate .......................................................................................................................................... 39
Replacing the battery ......................................................................................................................... 51
Serial port ........................................................................................................................................... 53
Fan ..................................................................................................................................................... 75
Side panels ......................................................................................................................................... 76
Power supply ...................................................................................................................................... 78
System board ..................................................................................................................................... 81
Power button board ............................................................................................................................ 89
Front bezel ......................................................................................................................................... 92
Appendix B Specifications ............................................................................................................................ 153
Index ................................................................................................................................................................. 155
viii
1Product Features
Overview
Figure 1-1 HP Compaq All-in-One Business PC (model 8300 shown)
The HP Compaq All-in-One Business PC offers the following features:
●Integrated All-in-One form factor
Full HD, LCD display (1920 x 1080) with LED backlighting
●
23-inch diagonal with optical touch
◦
23-inch diagonal
◦
21.5-inch diagonal
◦
Swivel pad under base of stand
●
●Adjustable tilt
Optional height adjustable and reclining stand
●
Removable panel on the back of the computer allows users or technicians to easily and
●
efficiently service the PC
VESA mounting holes (100 mm x 100 mm)
●
●
2nd and 3rd generation Intel
Up to 2 TB hard disc drive, or up to 300 GB Solid State Drive
●
®
Core™ processors
Overview1
Optional Tray-load HP SuperMulti DVD+/-RW SATA Optical Disc Drive or DVD-ROM disc drive
●
Optional mSATA module that can be used as a cache or SSD for the Elite 8300 or as a second
Touch the icon area (7–12 above) to cause the icons to illuminate, then touch an icon to activate it.
To change the volume or brightness, touch and hold the appropriate icon or touch it and repeat until
the volume or brightness has reached the desired level.
To mute the speaker or microphone, just touch the appropriate icon. The icon remains illuminated
until you touch it again to reactivate the speaker or microphone.
NOTE:If you mute or reactivate the speaker in a software application, the icon illuminates or
darkens accordingly.
You cannot mute or reactivate the microphone from a software application.
Front components3
Side components
NOTE:Side components are the same for 6300 and 8300 models.
2HP 6-in-1 media card reader (optional)7Optical disc drive eject button
3(2) USB 3.0 ports8Optical disc drive activity LED
4Microphone/line in jack9Power button
5Headset/line out jack
4Chapter 1 Product Features
Rear components
NOTE:Rear components are the same for 6300 and 8300 models.
Figure 1-4 Rear components
Table 1-3 Rear components
ComponentComponent
1Access panel8DisplayPort connector
2Access panel latches9RJ-45 Gigabit Ethernet port
3Security lock slot10Stereo audio line out
4Power connector11Rear port cover
5(2) PS/2 mouse and keyboard connectors12Serial port (optional)
6(2) USB 2.0 ports13Access panel security screw
7(2) USB 3.0 ports
Rear components5
2Installing and customizing the software
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.
NOTE:If the computer was shipped with Windows 7 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.
NOTE:Be sure there is a 10.2-cm (4-inch) clearance at the back of the unit and above the monitor
to permit the required airflow.
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.
Downloading Microsoft Windows updates
1.To set up your Internet connection, click Start > Internet Explorer and follow the instructions on
the screen.
2.Once an Internet connection has been established, click the Start button.
3.Select the All Programs menu.
6Chapter 2 Installing and customizing the software
4.Click on the Windows Update link.
In Windows 7, the Windows Update screen appears. Click view available updates and make
sure all critical updates are selected. Click the Install button and follow the instructions on the
screen.
It is recommended that you install all of the critical updates and service packs.
5.After the updates have been installed, Windows will prompt you to reboot the machine. Be sure
to save any files or documents that you may have open before rebooting. Then select Yes to
reboot the machine.
Installing or upgrading device drivers (Windows systems)
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.
Accessing disk image (ISO) files
There are disk image files (ISO files) included on your PC that contain the installation software for
additional software. These CD image files are located in the folder C:\SWSetup\ISOs. Each .iso file
can be burned to CD media to create an installation CD. It is recommended that these disks be
created and the software installed in order to get the most from your PC. The software and image file
names are:
Corel WinDVD SD and BD – installation software for WinDVD – used to play DVD movies
●
HP Insight Diagnostics OR Vision Diagnostics – software to perform diagnostic activities on your
●
PC
Protecting the software
To protect the software from loss or damage, keep a backup copy of all system software,
applications, and related files stored on the hard drive. Refer to the operating system or backup utility
documentation for instructions on making backup copies of your data files.
Installing or upgrading device drivers (Windows systems)7
3Computer 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, memory,
audio, storage, communications, and input devices.
Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash
●
media devices.
Select Post Messages Enabled or Disabled to change the display status of Power-On Self-Test
●
(POST) messages. Post Messages Disabled suppresses most POST messages, such as
memory count, product name, and other non-error text messages. If a POST error occurs, the
error is displayed regardless of the mode selected. To manually switch to Post Messages
Enabled during POST, press any key (except F1 through F12).
Establish an Ownership Tag, the text of which is displayed each time the system is turned on or
●
restarted.
Enter the Asset Tag or property identification number assigned by the company to this computer.
●
Enable the power-on password prompt during system restarts (warm boots) as well as during
●
power-on.
Establish a setup password that controls access to the Computer Setup (F10) Utility and the
●
settings described in this section.
●Secure integrated I/O functionality, including USB, audio, or embedded NIC, so that they cannot
be used until they are unsecured.
●Solve system configuration errors detected but not automatically fixed during the Power-On Self-
Test (POST).
Execute self-tests on a specified ATA hard drive (when supported by drive).
●
8Chapter 3 Computer Setup (F10) Utility
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.Press Esc while the “Press the ESC key for Startup Menu” message is displayed at the bottom
of the screen.
NOTE:If you do not press Esc at the appropriate time, you must restart the computer and
again press Esc when the monitor light turns green to access the utility.
3.Press F10 to enter Computer Setup.
4.A choice of five headings appears in the Computer Setup Utilities menu: File, Storage, Security,
Power, and Advanced.
5.Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and
down) keys to select the option you want, then press Enter. To return to the Computer Setup
Utilities menu, press Esc.
6.To apply and save changes, select File > Save Changes and Exit.
If you have made changes that you do not want applied, select Ignore Changes and Exit.
●
To reset to factory settings, select Apply Defaults and Exit. This option will restore the
●
original factory system defaults.
CAUTION:Do NOT turn the computer power OFF while the BIOS 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.
Computer Setup (F10) utilities9
Computer Setup—File
NOTE:Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-1 Computer Setup—File
OptionDescription
System InformationLists:
Product name
●
SKU number (some models)
●
●Processor type/speed/stepping
●Cache size (L1/L2/L3)
Installed memory size/speed, number of channels (single or dual) (if applicable)
●
Integrated MAC address for embedded, enabled NIC (if applicable)
●
●System BIOS (includes family name and version)
Chassis serial number
●
Asset tag
●
ME firmware version
●
ME Management mode
●
AboutDisplays copyright notice.
Set Time and DateAllows you to set system time and date.
Flash System ROMAllows you to update the system ROM with a BIOS image file located on removable media.
Replicated SetupSave to Removable Media
Saves system configuration, including CMOS, to a formatted USB flash media device.
Restore from Removable Media
Restores system configuration from a USB flash media device.
Default SetupSave Current Settings as Default
Saves the current system configuration settings as the default.
Restore Factory Settings as Default
Restores the factory system configuration settings as the default.
Apply Defaults and
Exit
Ignore Changes
and Exit
Save Changes and
Exit
Applies the currently selected default settings and clears any established passwords.
Exits Computer Setup without applying or saving any changes.
Saves changes to system configuration or default settings and exits Computer Setup.
10Chapter 3 Computer Setup (F10) Utility
Computer Setup—Storage
NOTE:Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-2 Computer Setup—Storage
OptionDescription
Device ConfigurationLists all installed BIOS-controlled storage devices.
When a device is selected, detailed information and options are displayed. The following options
may be presented:
Hard Disk: Size, model, firmware version, serial number, SMART.
Storage OptionsSATA Emulation
Allows you to choose how the SATA controller and devices are accessed by the operating
system. There are two supported options: AHCI and IDE.
AHCI (default option) - Allows operating systems with AHCI device drivers loaded to take
advantage of more advanced features of the SATA controller.
IDE - This is the most backwards-compatible setting of the two options. Operating systems usually
do not require additional driver support in IDE mode.
NOTE: The AHCI device driver must be installed prior to attempting to boot from an AHCI
volume. If you attempt to boot from an AHCI volume without the required device driver installed,
the system will crash (blue screen).
DPS Self-TestAllows you to execute self-tests on ATA hard drives capable of performing the Drive Protection
Boot OrderAllows you to:
System (DPS) self-tests.
NOTE: This selection will only appear when at least one drive capable of performing the DPS
self-tests is attached to the system.
Specify the order in which UEFI boot sources and legacy boot sources (such as a USB flash
●
media device, hard drive, optical drive, or network interface card) are checked for a bootable
operating system image. Each device on the list may be individually excluded from or
included for consideration as a bootable operating system source.
Specify the order of attached hard drives. The first hard drive in the order will have priority in
●
the boot sequence and will be recognized as drive C (if any devices are attached).
Press F5 to disable a device. Press Enter to select a device. Press the arrow keys to drag a
selected device.
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating
system has started.
Shortcut to Temporarily Override Boot Order
To boot one time from a device other than the default device specified in Boot Order, restart the
computer and press F9 before the computer boots to the operating system. After POST is
completed, a list of bootable devices is displayed. Use the arrow keys to select the preferred
bootable device and press Enter. The computer then boots from the selected non-default device
for this one time.
Computer Setup (F10) utilities11
Computer Setup—Security
NOTE:Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-3 Computer Setup—Security
OptionDescription
Setup PasswordAllows you to set and enable a setup (administrator) password.
NOTE: If the setup password is set, it is required to change Computer Setup options, flash the
ROM, and make changes to certain plug and play settings under Windows.
Power-On PasswordAllows you to set and enable a power-on password. The power-on password prompt appears
Device SecurityAllows you to set Device Available/Device Hidden for:
USB SecurityAllows you to enable or disable groups of USB ports or individual USB ports. Default is device
after a power cycle or reboot. If the user does not enter the correct power-on password, the unit
will not boot.
Embedded security device (some models)
●
System audio
●
●Network controller
SATA0
●
SATA1
●
SATA2
●
SATA3
●
available.
●Front USB Ports
USB Port 1
◦
USB Port 2
◦
●Rear USB Ports
◦USB Port 1
USB Port 2
◦
USB Port 3
◦
◦USB Port 4
Accessory USB Ports
●
USB Port 1
◦
◦USB Port 2
USB Port 3
◦
USB Port 4
◦
USB Port 5
◦
USB Port 6
◦
12Chapter 3 Computer Setup (F10) Utility
Table 3-3 Computer Setup—Security (continued)
Slot SecurityAllows you to disable or enable the PCI Express x1 slot. Default is enabled.
Network BootEnables/disables the computer’s ability to boot from an operating system installed on a network
System IDsAllows you to set:
Master Boot Record
Security
server. (Feature available on NIC models only). Default is enable.
Asset tag (18-byte identifier), a property identification number assigned by the company to
●
the computer.
Ownership tag (80-byte identifier) displayed during POST.
●
Universal Unique Identifier (UUID) number. The UUID can only be updated if the current
●
chassis serial number is invalid. (These ID numbers are normally set in the factory and are
used to uniquely identify the system.)
Keyboard locale setting for System ID entry.
●
Enables/disables Master Boot Record (MBR) security.
The MBR contains information needed to successfully boot from a disk and to access the data
stored on the disk. Master Boot Record Security may prevent unintentional or malicious changes
to the MBR, such as those caused by some viruses or by the incorrect use of certain disk utilities.
It also allows you to recover the "last known good" MBR, should changes to the MBR be detected
when the system is restarted.
When MBR Security is enabled, the BIOS prevents any changes being made to the MBR of the
current bootable disk while in MS-DOS or Windows Safe Mode.
NOTE: Most operating systems control access to the MBR of the current bootable disk; the
BIOS cannot prevent changes that may occur while the operating system is running.
Computer Setup (F10) utilities13
Table 3-3 Computer Setup—Security (continued)
System Security
(some models: these
options are hardware
dependent)
Data Execution Prevention (some models) (enable/disable) - Helps prevent operating system
security breaches. Default is enabled.
Virtualization Technology (VTx/VTd) (some models) (enable/disable) - Controls the virtualization
features of the processor and virtualization DMA remapping features of the chipset. Changing this
setting requires turning the computer off and then back on. Default is disabled.
Intel TXT (LT) Support (some models) (enable/disable) - Controls the underlying processor and
chipset features needed to support a virtual appliance. Changing this setting requires turning the
computer off and then back on. Default is disabled. To enable this feature you must enable the
following features:
Embedded Security Device Support
●
Virtualization Technology
●
Embedded Security Device (some models) (enable/disable) - Permits activation and deactivation
of the Embedded Security Device. Changing this setting requires turning the computer off and
then back on.
NOTE: To configure the Embedded Security Device, a Setup password must be set.
Reset to Factory Settings (some models) (Do not reset/Reset) - Resetting to factory defaults
●
will erase all security keys. Changing this setting requires turning the computer off and then
back on. Default is Do not reset.
CAUTION: The embedded security device is a critical component of many security
schemes. Erasing the security keys will prevent access to data protected by the Embedded
Security Device. Choosing Reset to Factory Settings may result in significant data loss.
OS management of Embedded Security Device (some models) (enable/disable) - This option
allows the user to limit operating system control of the Embedded Security Device. Changing this
setting requires turning the computer off and then back on. This option allows the user to limit OS
control of the Embedded Security Device. Default is enabled. This option is automatically disabled
if Trusted Execution Technology is enabled.
Reset of Embedded Security Device through OS (some models) (enable/disable) - This option
allows the user to limit the operating system ability to request a Reset to Factory Settings of the
Embedded Security Device. Changing this setting requires turning the computer off and then back
on. Default is disabled.
NOTE: To enable this option, a Setup password must be set.
DriveLock SecurityAllows you to assign or modify a master or user password for hard drives. When this feature is
enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither
is successfully entered, the hard drive will remain inaccessible until one of the passwords is
successfully provided during a subsequent cold-boot sequence.
NOTE: This selection will only appear when at least one drive that supports the DriveLock
feature is attached to the system.
14Chapter 3 Computer Setup (F10) Utility
Computer Setup—Power
NOTE:Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-4 Computer Setup—Power
OptionDescription
OS Power
Management
Hardware Power
Management
●Runtime Power Management— Enable/Disable. Allows certain operating systems to reduce
processor voltage and frequency when the current software load does not require the full
capabilities of the processor. Default is enabled.
●Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.
ACPI S3 Hard Disk Reset — Enable/disable. Enabling this causes the BIOS to ensure hard
●
disks are ready to accept commands after resuming from S3 before returning control to the
operating system.
Unique Sleep State Blink Rates—Enable/Disable. This feature is designed to provide a
●
visual indication of what sleep state the system is in. Each sleep state has a unique blink
pattern. Default is disabled.
S0 (On) = Solid green LED.
◦
◦S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(green LED) — repeated cycles of 3 blinks and a pause.
S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
◦
(green LED) — repeated cycles of 4 blinks and a pause.
◦S5 (Soft Off) = LED is off.
NOTE: If this feature is disabled, S4 and S5 both have the LED off. S1 (no longer
supported) and S3 use 1 blink per second.
SATA Power Management – Enables or disables SATA bus and/or device power management.
Default is enabled.
S5 Maximum Power Savings—Turns off power to all nonessential hardware when system is off to
meet EUP Lot 6 requirement of less than 1 Watt power usage. Default is disabled.
ThermalFan idle mode—This bar graph controls the minimum permitted fan speed.
NOTE: This setting only changes the minimum fan speed. The fans are still automatically
controlled.
Computer Setup (F10) utilities15
Computer Setup—Advanced
NOTE:Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-5 Computer Setup—Advanced
OptionHeading
Power-On OptionsAllows you to set:
●POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days).
QuickBoot (default) = Do not clear memory or perform a memory test.
◦
FullBoot = Memory test (count) on cold boot. Clears memory on all boots.
◦
◦Clear Memory = No memory count on cold boot. Clears memory on all boots.
FullBoot Every x Days = Memory count on 1st cold boot on or after the xth day. No
◦
more memory counts until 1st cold boot on or after x days. Clears memory on all boots.
POST messages (enable/disable). Default is disabled.
●
Press the ESC key for Startup Menu (Enable/Disable). Default is enabled.
●
Option ROM Prompt (enable/disable). Enabling this feature will cause the system to display
●
a message before loading option ROMs. Default is enabled.
●After Power Loss (off/on/previous state). Default is Power off. Setting this option to:
Off—causes the computer to remain powered off when power is restored.
◦
On—causes the computer to power on automatically as soon as power is restored.
◦
◦Previous state—causes the computer to power on automatically as soon as power is
restored, if it was on when power was lost.
NOTE: If you turn off power to the computer using the switch on a power strip, you will not be
able to use the suspend/sleep feature or the Remote Management features.
POST Delay (in seconds). Enabling this feature will add a user-specified delay to the POST
●
process. This delay is sometimes needed for hard disks on some PCI cards that spin up very
slowly, so slowly that they are not ready to boot by the time POST is finished. The POST
delay also gives you more time to select F10 to enter Computer (F10) Setup. Default is
None.
Remote Wakeup Boot Source (remote server/local hard drive). Default is Local hard drive.
●
Factory Recovery Boot Support (Enable/Disable). Provides the ability for the BIOS to redirect
●
the boot to the recovery partition on the user hard drive, if present. Some versions of the
recovery software honor the F11 key press even when this feature is disabled by the BIOS.
Default is disabled.
●Bypass F1 Prompt on Configuration Changes (Enable/Disable). Allows you to set the
computer not to confirm when changes were made. Default is disabled.
BIOS Power-OnAllows you to set the computer to turn on automatically at a time you specify.
Onboard DevicesAllows you to set resources for or disable Legacy devices.
Select the Legacy device's IRQ, DMA, and I/O Range. The settings may not take effect for all
operating systems. To hide a device from the operating system, see Security > Device Security.
16Chapter 3 Computer Setup (F10) Utility
Table 3-5 Computer Setup—Advanced (continued)
Bus OptionsOn some models, allows you to enable or disable:
●PCI SERR# Generation. Default is enable.
PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration
●
space; only needed when more than one graphics controller is installed. Default is disable.
Device OptionsAllows you to set:
●Turbo Mode (enable/disable). Allows you to enable and disable the Intel Turbo Mode feature,
which allows one core of the system to run at a higher than standard frequency and power if
other cores are idle. Default is enabled.
Printer mode (Bi-directional, EPP+ECP, Output Only). Default is EPP+ECP.
●
Num Lock State at Power-On (off/on). Default is on.
●
Integrated Video (enable/disable). Use this option to disable the integrated video controller
●
when another video controller is present in the system. Default is enabled.
LVDS Panel Select (Auto-Select, LG, CMI, Samsung, AUO). Options differ based on model.
●
Allows you to specify the display panel manufacturer. Default is Auto-Select.
Internal Speaker (some models) (does not affect external speakers). Default is enabled.
●
●NIC Option ROM Download (enable/disable). The BIOS contains an embedded NIC option
ROM to allow the unit to boot through the network to a PXE server. This is typically used to
download a corporate image to a hard drive. The NIC option ROM takes up memory space
below 1 MB commonly referred to as DOS Compatibility Hole (DCH) space. This space is
limited. This F10 option will allow users to disable the downloading of this embedded NIC
option ROM thus giving more DCH space for additional PCI cards which may need option
ROM space. Default is-enable.
Multi-Processor (enable/disable). Use this option to disable multi-processor support under
●
the OS. Default is enabled.
VGA ConfigurationDisplayed only if there is an add-in video card in the system. Allows you to specify which VGA
controller will be the “boot” or primary VGA controller.
Management
Operations
Allows you to set:
●AMT (enable/disable). Allows you to enable or disable functions of the embedded
Management Engine (ME) such as Active Management Technology (AMT). If set to disable,
the Management Engine is set to a temporarily disabled state and will not provide functions
beyond necessary system configuration. Default is enabled.
●Unconfigure AMT/ME (enable/disable). Allows you to unconfigure any provisioned
management settings for AMT. The AMT settings are restored to factory defaults. This
feature should be used with caution as AMT will not be able to provide any set AMT
management functions once unconfigured. Default is disabled.
Hide Unconfigure ME Confirmation Prompt (enable/disable). Allows you to set the system to
●
not display the confirmation to unconfigure ME.
●Watchdog Timer (enable/disable). Allows you to set amount of time for a operating system
and BIOS watchdog alert to be sent if the timers are not deactivated. BIOS watchdog is
deactivated by BIOS and would indicate that a halt occurred during execution if the alert is
sent to the management console. An operating system alert is deactivated by the operating
system image and would indicate that a hang occurred during its initialization. Default is
enabled.
Computer Setup (F10) utilities17
4Serial 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 cable7/7
Number of pins in power cable15
Maximum data cable length39.37 in (100 cm)
Data interface voltage differential400-700 mV
Drive voltages3.3 V, 5 V, 12 V
Jumpers for configuring driveN/A
Data transfer rate3.0 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.
18Chapter 4 Serial ATA (SATA) Drive Guidelines and Features
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.
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.
20Chapter 5 Routine Care and Disassembly Preparation
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
Event55%40%10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs* from plastic tube
Removing DIPs* from vinyl tray
Removing DIPs* from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
*These are then multi-packaged inside plastic tubes, trays, or Styrofoam.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
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.
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
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.
●
Electrostatic discharge information21
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
MethodVoltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
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.
●
1,500
7,500
15,000
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
●
22Chapter 5 Routine Care and Disassembly Preparation
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