Compaq D210 User Manual

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© 2002 Hewlett-Packard Company © 2002 Hewlett-Packard Development Company, L.P.
HP, Hewlett Packard, and the Hewlett-Packard logo are trademarks of Hewlett-Packard Company in the U.S. and other countries.
Compaq, the Compaq logo, and iPAQ are trademarks of Hewlett-Packard Development Company, L.P. in the U.S. and other countries.
Intel, Pentium, Intel Inside, and Celeron are trademarks of Intel Corporation in the U.S. and other countries.
Adobe, Acrobat, and Acrobat Reader are trademarks or registered trademarks of Adobe Systems Incorporated.
All other product names mentioned herein may be trademarks of their respective companies.
Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. The information in this document is provided “as is” without warranty of any kind, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose, and is subject to change without notice. The warranties for HP products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.
This document contains proprietary information that is protected by copyright. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company.
WARNING: Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life.
CAUTION: T ext set of f in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.
User’s Guide Compaq D210 Business Desktop First Edition (January 2003) Document Part Number: 318076-AA1
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Notices
Important safety instructions
Read these instructions carefully. Save these instructions for future reference. 1 Follow all warnings and instructions marked on the product. 2 Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use
a damp cloth for cleaning. 3 Do not use this product near water. 4 Do not place this product on an unstable cart, stand, or table. The product may fall, causing serious damage to
the product. 5 Slots and openings in the housing and the back or bottom are provided for ventilation; to ensure reliable
operation of the product and to protect it from overheating, these openings must not be blocked or covered.
The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface.
This product should never be placed near or over a radiator or heat register, or in a built-in installation unless
proper ventilation is provided.
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6 This product should be operated from the type of power indicated on the marking label. If you are not sure of
the type of power available, consult your dealer or local power company. 7 Do not allow anything to rest on the power cord. Do not locate this product where persons will walk on the
cord. 8 Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage
points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the
product. 9 Do not attempt to service this product yourself, unless you are a qualified service personnel. 10 Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following
conditions:
a When the power cord or plug is damaged or frayed
b If liquid has been spilled into the product
c If the product has been exposed to rain or water
d If the product does not operate normally when the operating instructions are followed. Adjust only those
controls that are covered by the operating instructions since improper adjustment of other controls may result in damage and will often require extensive work by a qualified service personnel to restore the
product to normal condition. e If the product has been dropped or the cabinet has been damaged f If the product exhibits a distinct change in performance, it is indicating a need for service.
11 Replace the battery with the same type as the product's battery we recommend. Use of another type of battery
may present a risk of fire or explosion. Refer battery replacement to a qualified service personnel.
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12 Warning! Batteries may explode if not handled properly. Do not disassemble or dispose them in fire. Keep
them away from children and dispose used batteries properly.
13 Use only the proper type of power supply cord set (provided in your accessories box) for this unit. It should be
a detachable type: UL listed/CSA certified, type SVT, rated 10A 250V minimum, VDE approved or its equivalent. Maximum length is 15 feet (4.6 meters).
14 Do not step on the power cord or place heavy objects on top of it. Carefully route the power cord and any
cables away from personal traffic.
15 When unplugging the power cord, do not pull on the cord itself but pull on the plug. 16 The total current rating of the equipment plugged in should not exceed the current rating of any extension cord
being used. Also, the total current rating of all equipment plugged into a single wall outlet should not exceed the fuse rating.
Laser compliance statement
The CD or DVD drive in this computer is a laser product. The CD or DVD drive’s classification label (shown below) is located on the drive.
CLASS 1 LASER PRODUCT
CAUTION: Invisible laser radiation when open, avoid exposure to beam.
Lithium battery statement
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.
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Notices iii
Important safety instructions iii Laser compliance statement iv Lithium battery statement iv
1 First things first 1
Taking care of your computer 3
Important tips 3 Cleaning and servicing 3 Asking for technical assistance 4
2 System tour 5
Features 7
Performance 7 Multimedia 7
Connectivity 7 Front panel 8 Rear panel 9 Mainboard layout 10 Keyboard 12
Function keys 13
Lock keys 13
Cursor keys 13
Windows keys 13 Mouse 15 Disk drives 16
Diskette drive (optional) 16
CD-ROM/DVD-ROM/CD-RW drive (optional) 16
Hard disk 17
3 Setting up your computer 19
Arranging a comfortable work area 21
Adjusting your chair 21
Positioning your PC 21
Positioning your monitor 21
Positioning your keyboard 21
Positioning your mouse 22 Connecting peripherals 23
Connecting your mouse 23
Connecting your keyboard 24
Connecting a monitor 25
Connecting the power cable 26 Turning on your computer 27 Turning off your computer 28 Connecting options 29
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Connecting your printer 29
Connecting to the network 30
Connecting multimedia devices 31
Connecting USB devices 32
4 Upgrading your computer 33
Installation precautions 35
ESD precautions 35
Preinstallation instructions 35
Post-installation instructions 36 Opening your computer 37
To remove the cover 37
To replace the cover 38 Upgrading your computer 40
Upgrading the CPU 40
Installing additional memory 41
Upgrading drives 43
Installing an expansion card 47
5 Troubleshooting 49
Basic problems 51
Audio problems 53
CD-ROM drive/CD problems 55
Diskette drive problems 56
Hardware installation problems 58
Internet problems 59
Keyboard problems 60
Memory problems 61
Modem/Fax problems 62
Network problems 66
Pointing device problems 67
Printer problems 68
Screen and display problems 69
USB problems 70
Specifications 71
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1 First things first
This chapter provides important tips on how to take care of your computer.
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Taking care of your computer
Please read the important instructions listed in this section. Following these instructions will help you maximize the durability of your computer.
Important tips
Do not expose the computer to direct sunlight. Do not place it near sources of heat, such as a radiator.
Do not subject the computer to magnetic fields.
Do not expose the computer to rain or moisture.
Do not spill liquid on the computer.
Do not subject the computer to heavy shock or vibration.
Do not expose the computer to dust and dirt.
Never place the system on uneven surfaces.
1 First things first2
Cleaning and servicing
To clean your computer and keyboard
1 Turn off the computer and unplug the power cord. 2 Use a soft cloth moistened with water and gently wipe the exterior of the computer and the keyboard. Do not
use liquid or aerosol cleaners.
To clean your pointing device
To clean a regular mouse (with rubber ball)
1 Open the circular cover underneath the mouse. 2 Take out the rubber ball and wipe it with a soft, damp cloth. 3 Carefully clean the rollers inside the mouse body that the ball rolls on. 4 Put the ball back and close the cover.
To clean an optical mouse
For users of an optical mouse, refer to the documentation that came with your mouse for maintenance instructions.
When to contact a service personnel
If you drop and damage the computer
If liquid has been spilled into the computer
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If the computer is not operating normally
If a computer problem persists even after you have checked and done the troubleshooting tips discussed in the
“Troubleshooting” section that begins on page 49
If your problem is not listed in the“Troubleshooting” section that begins on page 49
If you want to replace or upgrade any of your computer’s internal components
Asking for technical assistance
For technical assistance, contact your HP authorized service provider. For information on how and where to contact the service centers in your area, you may access the Web site http://e-support.hp.com.cn/Support/product-item.asp
1 From the browser window, click Business PC under the Desktop and Workstation category. 2 Under the Compaq Series list, select D210.
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and select the following:
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2 System tour
This chapter discusses the features and components of your computer.
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Front panel
Your computer’s front panel consists of the following:
2 System tour6
Label Component
1 Optical drive (optional) 2 Optical drive (optional) 3 HDD LED 4 Power LED 5 Power button 6 Diskette drive LED 7 3.5-inch diskette drive (optional)
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Rear panel
Your computer’s rear panel consists of the following:
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Label Color Component Label Color Component
1 Power supply 8 Light blue Audio-in/Line-in
jack
2 Voltage selector
switch
3 Power cord socket 10 Pink Microphone-in jack
4 Purple PS/2 keyboard
port
5 Burgundy Parallel/Printer
port
6 Network port 13 USB ports 7 Expansion slot 14 Green PS/2 mouse port
9 Lime Audio-out/Line-out/
Headphone-out jack
(rear)
11 Blue VGA port
12 Teal or
Turquoise
Serial port
For information on how to connect the peripherals, see “Connecting peripherals” on page 23 and “Connecting options” on page 29.
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Mainboard layout
The layout below shows all the connectors and jumpers of the mainboard. Refer to the table on page 11 for a brief description of each connectors and jumpers.
The mainboard becomes accessible once you open your computer. It should look like the figure shown below:
2 System tour8
For information on how to open your computer, see “Opening your computer” on page 37.
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Label Component BT1 Battery BZ1 Buzzer CN2 PS/2 mouse (upper) and keyboard (lower) ports CN3 USB 1.1/2.0 ports CN4 COM 2 connector CN7 Power connector CN8 Parallel (upper), serial (left) and monitor (right) ports CN9 FDD connector CN10 Network (upper) and USB 1.1/2.0 (lower) ports
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CN1 1 Power connector (12V power and GND) CN12 IDE 2 connector CN13 IDE 1 connector CN14 Line-in (top), line-out (middle), and rear microphone-in (bottom) ports CN17 CD audio-in connector CN18 Front USB 2.0 connector CN20 HDD LED connector CN21 Power button CN22 Intrusion connector CN24 Power/Suspend LED connector DIMM 1/ DIMM 2 DIMM sockets 1-2 FN1 3-pin CPU fan connector FN2 3-pin system fan connector JP2 1-2 Normal
2-3 Clear CMOS SL1 to SL3 PCI slots 1 to 3 U3 SMSC super I/O chipset U8 CPU socket U14 Intel 845GL chipset U21 Intel ICH4 chipset U24 BIOS chipset
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Keyboard
The keyboard has full-sized keys that include separate cursor keys, two Windows keys, and twelve function keys. For information on how to connect your keyboard, see “Connecting peripherals” on page 23.
2 System tour10
No. Description
1 Function keys 2 Scroll lock keys 3 Num lock key 4 Cursor keys 5 Application key 6 Windows logo key 7 Caps lock key
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Function keys
The function keys, F1 - F12, let you perform specific functions, depending on the application that uses them.
Lock keys
The keyboard has three lock keys which you can toggle on and off to switch between two functions.
Lock key Description
Caps Lock When activated, all alphabetic characters typed appear in uppercase (same function as
pressing Shift + <letter>).
Num Lock When activated, the keypad is set to numeric mode; i.e., the keys function as a calculator
(complete with arithmetic operators such as +, -, * and /).
Scroll Lock When activated, the screen moves one line up or down when you press the up arrow or
down arrow respectively . Take note that Scroll Lock may not work with some applications.
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Cursor keys
The cursor keys, also called the arrow keys, let you move the cursor around the screen. They serve the same function as the arrow keys on the numeric keypad when the Num Lock is toggled off.
Windows keys
The keyboard has two keys that perform Windows-specific functions.
Key Description
Application key Opens the applications context menu (same function as clicking the right button of the
mouse).
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Key Description
Windows logo key Use the Windows Logo Key in combination with other keys to perform certain functions
available in the Windows operating system.
Windows logo key: Displays or hides the Start menu.
Windows logo key + d: Displays the Desktop
Windows logo key + m: Minimizes All Open Applications
Shift + Windows logo key + m: Undoes Minimize All
Windows logo key + e: Launches My Computer
Windows logo key + f: Launches Find Document
Windows logo key + Ctrl + f: Launches Find Computer
Windows logo key + F1: Launches Windows Help
Windows logo key + l: Locks your computer if you are connected to a network domain or allows you to switch users if you are not connected to a network domain
Windows logo key + r: Launches the Run dialog box
Windows logo key + u: Launches the Utility Manager
Windows logo key + Tab: Activates the next Taskbar button
2 System tour12
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Mouse
Your mouse has one scroll wheel and two buttons: a left button and a right button. Quickly pressing and releasing the buttons is called clicking. Sometimes, you will need to do a double-click (clicking the same button twice quickly) or a right-click (clicking the right button quickly).
The scroll wheel in between the two buttons is added to provide easier scrolling capability. By simply moving the wheel with your index finger, you can quickly move through multiple pages, lines, or windows. The wheel may also function as a third button allowing you to quickly click or double-click an icon or a selected item.
For information on how to connect your mouse, please see “Connecting peripherals” on page 23.
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For information on how to clean your mouse, see “To clean your pointing device” on page 3.
Note: If you are left-handed, refer to your Windows manual for instructions on how to set up your mouse for left-handed use.
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Disk drives
Your computer comes with the following disk drives:
Diskette drive (optional)
Your computer’s 3.5-inch diskette drive accepts 720-KB and 1.44-MB capacity diskettes. The diskettes are compact, lightweight, and easy to carry around. Here are some tips on how to take care of your
diskettes:
Always make backup copies of the diskettes that contain important data or program files.
Keep diskettes away from magnetic fields and sources of heat.
To prevent data loss or damaging your files, never remove a diskette from the drive when the diskette drive activity light is still on.
Write-protect your diskettes to prevent accidental erasure. To do this, slide the write-protect tab to the write­protect position.
2 System tour14
1-Write-protected
When you put a label on a 3.5-inch diskette, make sure that the label is properly attached (flat on the surface) and within the labeling area (area with a slight surface depression) on the diskette. An improperly attached label may cause a diskette to get stuck in a drive when you are inserting or removing it.
2-Not Write-protected
CD-ROM/DVD-ROM/CD-RW drive (optional)
Your computer may come with a CD-ROM, DVD-ROM or a CD-RW drive. This drive is located on the front panel of your computer. The CD-ROM drive allows you to play different types of compact discs (CDs). The DVD­ROM drive allows you to play not only old CD-ROMs, CD-I discs, and video CDs, but new digital video discs (DVDs) as well. DVD or DVD-ROM is a type of disc media that holds a minimum of 4.7-GB (gigabytes), enough for a full-length movie. It may eventually replace CD-ROMs, as well as VHS video cassettes and laser discs. The CD-RW drive allows you to record or burn CD-RW (recordable and rewritable) discs.
CDs and DVDs, like diskettes, are also compact, lightweight, and easy to carry around. However, they are more delicate than diskettes and must be handled with extra care.
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To insert a CD or DVD into your computer’s CD-ROM or DVD drive: 1 Gently push the Eject button located on the front panel to open the drive tray. 2 When the disc tray slides open, place the CD or DVD gently on the tray. Make sure that the label or title side
of the disc is facing upward. When holding a disc, hold it by the edges to avoid leaving smudges or fingerprints.
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3 Push the eject button to close the tray.
To take care of your CD or DVD discs
Keep your disc in its case when not in use to avoid scratches or other damage. Any kind of dirt or damage can affect the data on the disc, impair the disc lens reader on the CD or DVD drive, or stop the computer from successfully reading the disc.
When handling discs, always hold them by the edges to avoid smudges or fingerprints.
When cleaning discs, use a clean, dust-free cloth and wipe in a straight line from the center to the edge. Do not wipe in a circular motion.
Clean your CD or DVD drive periodically. You may refer to the Cleaning kit for instructions. Cleaning kits can be purchased in any computer or electronics shop.
Hard disk
Your computer is preinstalled with a high-capacity Enhanced-IDE (E-IDE) hard disk. For instructions on how to upgrade or replace your hard disk, see “Replacing the hard disk” on page 43.
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2 System tour16
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3 Setting up your
computer
This chapter contains step-by-step instructions on how to set up your computer and connect additional peripherals.
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Arranging a comfortable work area
Working safely begins with the arrangement of your work space and the proper use of equipment. For this reason, it is very important to take time and think about how you are going to arrange your work area.
3 Setting up your computer20
Note: You may also access the Web site (www.hp.com/ergo/ proper workstation setup, posture, and health and work habits for computer users.
Here are some points to consider:
) for a detailed description on the
Adjusting your chair
Having the right kind of chair does not necessarily mean that you will be properly supported. It is necessary to adjust your chair to fit your body. Proper body posture will make you more comfortable and productive.
Avoid tilting your chair. If you have a chair that tilts, lock the tilt knobs so that your chair will not tilt forward or backward while you are using your computer.
Adjust your chair height in such a way that you can sit on it with your thighs parallel to the floor and your feet resting flat on the floor.
Rest your body on the chair back. Your torso works harder to maintain balance if you do not rest your body on the chair back.
Positioning your PC
Take note of the following when selecting a location for your computer:
Do not put your computer near any equipment that might cause electromagnetic or radio frequency interference such as radio transmitters, televisions, copy machines, or heating and air-conditioning equipment.
Avoid dusty areas and extremes of temperature and humidity.
You may place your computer beside your desk or under your table, as long as it does not block the space that you need for working and moving.
Positioning your monitor
Place your monitor at a comfortable viewing distance, usually 50 to 60 centimeters away. Adjust the display in such a way that the top of the screen is at or slightly below eye level.
Positioning your keyboard
The location of the keyboard is a very important factor to your posture. Placing it too far away will make your body lean forward forcing you to sit in an unnatural position. Placing it too high will add tension to your shoulder muscles.
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The keyboard should be placed just above your lap. Adjust the keyboard height by flipping the folding stands located under the keyboard.
Keep your lower arms parallel to the floor as you type. Your upper arms and shoulders should be relaxed. Then try typing with a light touch. If you feel any shoulder or neck strain, stop for a while and check your posture.
Position your keyboard in front of your monitor. Putting your keyboard beside your monitor will make you turn your head while you type which could add tension to your neck muscles that may later result in neck strain.
Positioning your mouse
The mouse should be placed on the same surface as your keyboard so that you can reach it with ease.
Adjust its position to allow enough space for movement without making you stretch or lean over.
Use your arm to move the mouse. Do not rest your wrist on the table when moving the mouse.
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Connecting peripherals
Setting up your computer is easy. For the most part, you only have four things to connect: the mouse, the keyboard, the monitor, and the power cable.
Note: The illustrations shown in this section are for your reference only. Actual device model may not be exactly the same.
Connecting your mouse
PS/2 mouse
3 Setting up your computer22
Plug the PS/2 mouse cable into the PS/2 mouse port (green port) located on the rear panel of your computer.
Important: If you are using a serial mouse, connect the mouse cable into the serial port (teal or turquiose) located on the rear panel of your computer. In the same manner, connect a USB mouse by plugging the mouse cable into any of the USB ports located on the rear panel.
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Connecting your keyboard
PS/2 keyboard
Plug your PS/2 keyboard cable into the PS/2 keyboard port (purple port) located on the rear panel of your computer.
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Note: If you are using a USB keyboard, connect the keyboard cable into any of the USB ports located on the rear panel of your computer.
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Connecting a monitor
To connect a CRT monitor, simply plug the monitor cable into the VGA port (blue port) located on the rear panel of your computer.
3 Setting up your computer24
Note: Refer to the monitor manual for additonal instructions and information.
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Connecting the power cable
CAUTION: Before you proceed, check the voltage range in your area. Make sure that it matches your computer’s voltage setting. If they do not match, change your computer’s voltage setting according to your area’s voltage range.
To connect the power cable:
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1 Select the correct voltage setting.
WARNING: An incorrect setting will cause power supply failure.
2 Plug the power cable into the power cable socket located on the rear panel of your computer. Then plug the
other end of the power cable into an electrical outlet.
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Turning on your computer
After connecting the necessary peripherals and plugging in the power cable, you are now ready to turn the computer on and get to work.
To turn on your computer: 1 Turn on all external peripherals connected to your computer such as the monitor, printer, fax, speakers, etc. 2 On the front panel of your computer, press the Power button.
3 Setting up your computer26
Important: Make sure that the power cable is properly plugged into an electrical outlet. If you are using a power strip or an AVR (Auto-Voltage Regulator), make sure that it is plugged in and turned on.
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Turning off your computer
To turn off your computer, follow the steps below.
For Windows XP:
1 On the Windows XP taskbar, click on the Start button, and click Shut Down Computer; then click Ok. 2 Turn off all peripherals connected to your computer.
For Turbolinux:
In Gnome mode: 1 Click on the Start button, click Log off and then click Stop.
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In KDE mode: 1 Click on the Start button, click Log off and then click Yes. When the computer is back to the text mode, type
shutdown -h now command then press Enter.
In text mode: 1Type
shutdown -h now then press Enter.
Note: If the computer does not shut down, press the power button for four seconds then pull the electric plug from the wall socket or turn off the power strip where the electrical plug is attached. Quickly pressing the button may put the computer in Suspend mode only.
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Connecting options
Connecting your printer
Your computer supports parallel, serial and USB printers. To connect a parallel printer, plug the printer cable into the parallel port (burgundy port) located on the rear panel
of your computer.
3 Setting up your computer28
Note: If you are using a serial printer, connect the printer cable into the serial port located on the rear panel of your computer. In the same manner, connect a USB printer by plugging the printer cable into any of the USB ports located on the rear panel.
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Connecting to the network
You can connect your computer to a Local Area Network (LAN) using a network cable. To do so, simply plug the network cable into the network port located on the rear panel of your computer.
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Note: Consult your operating system manual for information on how to configure your network setup.
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Connecting multimedia devices
You can connect multimedia devices such as a microphone, audio line-in devices, an earphone, a headphone and external speakers. These devices will allow you to take advantage of your computer’s multimedia features.
Plug the devices in as follows:
microphone: connect to the Microphone-in jack (pink jack)
earphones, headphones, speakers: connect to the Audio-out/Line-out/Headphone-out jack (lime jack)
external CD player : connect to the Audio-in/Line-in jack (light blue jack)
Note: To adjust the volume of the headphones, click the Volume icon located on the taskbar at the bottom of your screen. When the volume control pops up, drag the Volume control lever to the desired level.
Refer to the figure below for the connections.
3 Setting up your computer30
Note: For information on how to configure multimedia devices, consult the documentation that came with each device.
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Connecting USB devices
Universal Serial Bus (USB) is a serial bus design that is capable of cascading peripherals such as a digital camera, keyboard, mouse, joystick, scanner, printer and modem. With USB, complex cable connections can be eliminated.
Your computer comes with four USB ports on the rear panel. These ports support USB 2.0 high performance external devices such as webcams and digital still cameras. They also allow you to connect additional USB devices to your computer without using up its system resources.
To connect a USB device, simply plug the device cable into any of the USB ports.
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Note: Some USB devices have a built-in USB port which allows you to connect or daisy-chain more USB devices.
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4 Upgrading your
computer
This chapter contains instructions on how to upgrade your computer.
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Installation precautions
Before you install any computer component, we recommend that you read the following sections. These sections contain important ESD precautions along with preinstallation and post-installation instructions.
ESD precautions
Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a computer component:
1 Do not remove a component from its protective packaging until you are ready to install it. 2 Wear a wrist grounding strap and attach it to a metal part of the computer before handling components. If a
wrist strap is not available, maintain contact with the computer throughout any procedure requiring ESD protection.
4 Upgrading your computer34
Preinstallation instructions
Always observe the following before you install any component: 1 Turn off your computer and all the peripherals connected to it before opening it. Then unplug all cables from
the electrical outlets.
2 Open your computer according to the instructions on page 37. 3 Follow the ESD precautions described above before handling a computer component. 4 Remove any expansion boards or peripherals that block access to the DIMM sockets or component connector. 5 See the following sections for specific instructions on the component you wish to install.
WARNING: Not turning off the computer properly before you start installing the components may cause serious damage.
Do not attempt the procedures described in the following sections unless you are a qualified service personnel.
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Post-installation instructions
Observe the following after installing a computer component: 1 Ensure the components are installed according to the step-by-step instructions in their respective sections. 2 Replace any expansion boards or peripherals that you removed earlier. 3 Replace the cover. 4 Connect the necessary cables and turn on your computer.
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Opening your computer
CAUTION: Before you proceed, make sure that you have turned off your computer and all peripherals connected to it. Read the “Preinstallation instructions” on page 35.
You need to open your computer before you can install additional components. See the following section for instructions.
To remove the cover
1 Turn off your computer and unplug all cables. 2 Place your computer on a flat, steady surface. 3 Remove the four screws from the rear panel using a screwdriver. Set the screws aside.
4 Upgrading your computer36
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4 Push the housing cover slightly backward (1), then pull it up (2) to detach it.
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To replace the cover
1 Align the housing cover to the housing frame and then push it in to slide it back into place.
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2 Secure the housing cover with the four screws you removed earlier.
4 Upgrading your computer38
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Upgrading your computer
Certain components of your computer are upgradeable such as memory, hard disk, CPU and expansion cards. You need to observe the “Installation precautions” and “ESD precautions” on page 35 when installing or removing a computer component. However, for safety purposes, we do not recommend that you perform these upgrades yourself. If you want to replace or upgrade any of these components, contact your dealer or a qualified service personnel for assistance.
Upgrading the CPU
Important: Before removing a CPU from the mainboard, make sure to create a backup file of all important data.
Follow these steps to upgrade your CPU:
39
1 Remove the cover (see page 37). 2 Locate the CPU socket on the mainboard. Refer to “Mainboard layout” on page 10 for the location of the CPU
socket.
3 Disconnect the heatsink and fan cables from the mainboard.
WARNING: The heatsink may feel hot after long period of usage. It is recommended to allow a few minutes of cooling period before attempting the upgrade.
4 Remove the heatsink and fan assembly by pressing the retaining levers on both sides of the heatsink
supporting- base, then lift up the levers to a 90° angle.
5 Unlatch the CPU socket lever then lift it up. 6 Remove the CPU from its socket. 7 Install the new CPU with correct orientation. Close the socket lever to lock the CPU in place. 8 Put some thermal paste on top of the CPU’s metal shield.
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9 Place the heatsink and fan assembly on top of the CPU then press down the retaining lever to secure the
assembly.
10 Connect the heatsink and CPU fan cables to the mainboard. 11 Replace the cover (see page 38).
4 Upgrading your computer40
Installing additional memory
The two 184-pin sockets on the mainboard support Double Data Rate (DDR) Dynamic Random Access Memory (DRAM)-type DIMMs. You may install 128-MB, 256-MB, 512-MB or 1-GB DIMMs for a maximum memory capacity of 2GB.
You can install PC2100/DDR266 or PC1600/DDR200 DDR modules in the DDR DIMM sockets. Contact your dealer for qualified DIMM vendors.
Each DDR DIMM socket is independent from the other. This independence allows you to install DDR DIMMs with different capacities to form different configurations.
Note: The DDR DIMM has only one notch located on the center of the module.
To remove a DDR DIMM
1 Remove the cover (see page 37). 2 Locate the DDR DIMM socket on the mainboard.
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3 Press the holding clips on both sides of the DDR DIMM socket outward to release the DDR DIMM (a).
Gently pull the DDR DIMM out of the socket (b).
41
To install a DDR DIMM
1 Locate the DDR DIMM socket on the mainboard. 2 Align the DDR DIMM with the socket (a). Press the DDR DIMM into the socket until the clips lock onto the
DDR DIMM (b).
Note: The DDR DIMM sockets are slotted to ensure proper installation. If you insert a DDR DIMM but it does not fit easily into the socket, you may have inserted it incorrectly. Turn the DDR DIMM around and try to insert it again.
To reconfigure your computer
Your computer automatically detects the amount of memory installed. Run the BIOS utility to view the new value for total system memory and make a note of it.
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Upgrading drives
Your computer has five drive bays that can accommodate a maximum of two optical drives, one diskette drive and two hard disks. When installing a drive, make sure the screws are aligned with the guide slots in the disk frame. Below is a side view illustration of the disk frame; the black markings indicate the position of the screws in each
drive bay on both sides of the disk frame.
4 Upgrading your computer42
Label Description
1 Optical drives 2 Diskette drive 3 Hard disk 4 Additional hard disk
Replacing the hard disk
Follow these steps to replace your computer’s hard disk: 1 Remove the cover (see page 37).
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2 Disconnect all cables connected to the hard disk and 3.5-inch diskette drives.
43
3 Remove the 3.5-inch drive frame from the housing by pressing the tab on top and pivoting the frame outward.
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4 Remove the four screws that hold the hard disk to the disk frame and pull out the hard disk.
5 Install a new 3.5-inch hard disk and secure it with the four screws you removed earlier.
4 Upgrading your computer44
6 Reinstall the frame into the housing as in the following figure:
a Align the frame with the notch.
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b Pivot the frame toward the housing until the tab clicks into place.
45
c Connect the disk drive and power cables.
Note: Make sure that the other ends of the disk cables are securely connected to their corresponding connectors on the mainboard.
7 Replace the cover (see page 38).
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Installing an expansion card
To install an expansion card: 1 Remove the cover (see page 37). 2 Locate an empty PCI slot on the mainboard. 3 Remove the screw that holds the bracket to the computer. Save the screw. 4 Pull out the bracket on the housing opposite the selected empty slot. 5 Remove the expansion card from its protective packaging. 6 Align the card with the empty bracket and then insert it into the slot. Make sure that the card is properly seated
in the expansion card socket.
7 Secure the card to your computer with a screw you removed earlier.
4 Upgrading your computer46
8 Replace the cover (see page 38). When you turn on the computer, the BIOS (Basic Input/Output System) automatically detects and assigns resources
to the newly-installed devices.
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47
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5 Troubleshooting
This chapter instructs you on how to deal with common system problems. If problems still persist, contact your HP authorized service provider for assistance.
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Basic problems
Problem Possible causes Possible remedies
5 Troubleshooting50
Computer cannot power on. The computer is not connected to an
external power source. The cable to the external power source is
unplugged.
A defective PCI card has been installed. Remove any adapter card that was just
Computer display date and time is incorrect.
Computer pauses periodically.
The real-time clock (RTC) battery needs to be replaced.
The network driver is loaded and no network connection is established.
Connect the computer to an external power source.
Make sure the cables connecting the computer and the external source are plugged in properly.
installed. First reset the date and time under the
Windows Control Panel. If resetting the date and time does not work, your computer’s RTC battery needs to be replaced. The battery life is approximately three years. Contact your HP authorized service provider for assistance.
Establish a network connection. Click Start Control Panel System Hardware Device Manager Network Adapters Intel PRO/100 VE Driver Update Driver. Make sure the network diskette is in the diskette drive, or use the same step to disable the network controller.
Constant beeping sound for about 3-5 seconds and the computer automatically turns off.
or
An error message (CPU fan has stopped. System will turn off after 5 seconds) appears on the screen during POST.
CPU fan cable is not connected to the FN1 header of the mainboard.
There may be objects blocking the rotation of the CPU fan blade.
Do the following: 1 Power off the computer. 2 Remove the computer cover (see
page 37).
3 Connect the CPU fan cable to the
FN1 connector on the mainboard (see page 10 for the location of the connector).
Do the following: 1 Power off the computer.
2 Remove the computer cover (see
page 37).
3 Remove any object from the CPU
fan blade.
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Problem Possible causes Possible remedies
51
Constant beeping sound for about 3-5 seconds and the computer automatically turns off.
or An error message (CPU
temperature is too high, system will turn off after 5 seconds) during POST.
Constant beeping sound and nothing appears on the screen.
Mainboard has a faulty CPU fan. Contact your HP authorized service
provider for assistance.
CPU or system temperature is above the thermal warning alert limit.
Note: The computer will not automatically power off in this condition.
Save data or program files then turn off the computer.
Important: Do not expose the computer to direct sunlight or near source of heat , such as a radiator.
CPU or system temperature is above the thermal shutdown protection limit.
Note: The computer will automatically power off in this condition.
Contact your HP authorized service provider for assistance.
Important: Do not expose the computer to direct sunlight or near source of heat , such as a radiator.
The memory module may not be correctly installed.
Memory module is not the correct type or speed grade for the system or the new memory module is not securely inserted into the socket.
Make sure the memory modules are firmly and securely installed.
Replace module with the correct industry-standard memory type for your computer.
Make sure the memory module is inserted securely into the socket. See page 10 for the location of the memory sockets on the mainboard.
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Audio problems
Problem Possible causes Possible remedies
No sound Audio drivers are not installed properly. Remove the audio device in the Device
5 Troubleshooting52
Manager and reboot your computer. The Windows operating system will automatically detect a new hardware when restarting the operating system.
Click Start Control Panel System Hardware Device Manager Sound, video and game controllers Realtek AC’97 Audio for Intel (R) Audio Controller Driver Update Driver
No sound can be heard. Y ou have verified that your speaker connections and audio drivers are installed correctly.
Cannot record any sound. The microphone does not work.
Either the Mute All or Mute Volume option is enabled under the Microsoft Volume Control applet.
The volume controls on your speaker may be set too low.
The microphone has no volume because the Mute volume option is enabled under the Microsoft Volume Control applet.
Launch the Volume Control applet. Under each of the controls, deselect the
Mute option.
Adjust the volume of the stereo speakers using the volume controls.
Access the volume control. Click Start All Programs
Accessories Entertainment Volume Control
Adjust the volume using the Volume Control icon on the taskbar. Check the line input connection.
Follow these steps: 1 Launch the Volume Control applet.
2 Click Options then select
Properties.
3 Under Show the Following Volume
Controls list box select Microphone then click OK.
4 Under the Microphone control,
deselect the Mute option.
Speakers are incorrectly connected or are not plugged in.
The microphone is not compatible with your computer.
Reconnect speakers to the line-out jack (lime jack) located on the rear panel of your computer.
Check to see that you are using a monophonic electric condenser microphone with a 3.5mm plug.
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Problem Possible causes Possible remedies
53
Cannot record any sound. The microphone does not work.
No sound comes from a program that should have a sound.
Volume is too low or too loud.
The microphone is not firmly connected or connected to the wrong jack.
Make sure the external microphone is correctly connected to the microphone-in jack (pink jack) located on the rear panel of your computer. The microphone jack includes a picture of a microphone.
A sound source is not selected. Make sure the microphone is selected as
the recording source and the recording level is adjusted. Click Start Control Panel Sound and Audio Devices Audio Volume
The audio settings are not correct. Check the game program’s audio
settings.
The volume may be muted. Adjust speaker volume on your
computer.
Volume and/or mixing controls are set incorrectly.
Check volume and mixing controls. Click Start All Programs
Accessories Entertainment Volume Control.
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CD-ROM drive/CD problems
Problem Possible causes Possible remedies
5 Troubleshooting54
CD-ROM drive cannot read a CD.
The computer cannot find the CD-ROM drive.
Cannot eject the CD tray. The CD is not loaded properly in the
CD-ROM drive is not running at its rated accessing speed.
The CD is not seated properly in the drive.
The CD has been loaded upside down. Eject the CD, turn it over and close the
CD media maybe scratched or deformed.
The CD-ROM drive is not properly connected, it was not terminated properly or the CD-ROM driver is not loaded.
drive.
Current CD media condition is not suitable for high speed accessing.
Current CD media is not written near its maximum capacity.
Eject the CD, reseat it and close the tray.
tray. Contact your CD media dealer for
replacement. Check if the cables are correctly and
firmly connected to the CD drive. If this does not work, contact your HP authorized service provider for assistance.
There is a mechanical eject button on the optical drive. Turn off your computer. Insert the tip of a pen or paperclip and push the eject button. Slowly pull the tray out from the drive until the tray is fully extended then remove the disc
This is not a problem. Your optical drive will select its optimal accessing speed to cater to different disc conditions.
This is not a problem. Generally all optical drives rated access speed is the maximum speed applicable only to accessing data at the outermost tracks of a disc media.
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Diskette drive problems
Note: You may need to reconfigure the computer when you add or remove a hardware device, such as an additional diskette drive. See “Hardware installation problems” on page 58 for more information.
Problem Possible causes Possible remedies
55
Diskette drive light stays on The diskette drive cable is connected
incorrectly.
The diskette is damaged. In the Windows Operating System, run
The diskette drive is faulty. Contact your HP authorized service
Diskette drive cannot write to diskette.
The diskette is write-protected. Use another diskette or remove the write
Your computer is writing to the wrong drive.
Not enough space is left on the diskette. Use another diskette that has more free
The diskette drive is disabled. Follow these steps:
Make sure the diskette drive cable is inserted securely into the socket. See page 10 for the location of the diskette drive connectors on the mainboard.
Scan Disk . Follow these steps: 1 Click Start then My Computer.
2 Right click on the diskette drive. 3 Select Properties. 4 Click Tools then Error-checking.
provider for assistance.
protection by sliding the black tab on the corner of the diskette.
Check your application to see which drive it is trying to access; then change the drive letter or path if necessary.
space.
1 Reboot your computer. 2 Press F10 during (POST) to enter
the Setup utility.
3Select Standard CMOS Features
from the Main menu.
4Select Drive A and set it at 1.44MB,
3.5-inch parameter.
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Problem Possible causes Possible remedies
5 Troubleshooting56
Diskette drive cannot read a diskette.
Error message appears while system is writing data on a diskette.
The diskette is not formatted or is formatted incorrectly.
Format the diskette. Do the following: 1 In the Windows Operating System,
double-click My Computer. 2 Double-click 3.5” Floppy. 3 Click File then select Format. 4 Fill in the appropriate information
then press Start. Caution! If you reformat a diskette, you
will loose all data on it.
LS-120 Disks will not work in s diskette drive.
The diskette was removed while the drive light was on.
Make sure that you are using the correct type of diskette.
Retry and do not remove diskette when the drive light is on. Diskette or files may be damaged. If problem persists, recopy the information onto a new or reformatted diskette.
The diskette may have bad sectors. Recopy the information onto a new or
reformatted diskette.
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Hardware installation problems
Note: You may need to reconfigure the computer when you add or remove a hardware device. Under the Windows operating system, if you install a Plug and Play device, it will automatically recognize the device and configure the computer. When you install a non Plug and Play device, you must reconfigure the computer after installing the new hardware. In the Windows Control Panel, double-click the Add Hardware icon and follow all onscreen instructions.
Problem Possible causes Possible remedies
57
New external hardware device is not working properly.
Second Ultra ATA hard disk does not perform optimally.
Your computer did not automatically configure the new device.
The cable(s) for the new external device are loose, or the power cables are unplugged.
The device’s power switch is not turned on or was turned on after the computer was power on.
The computer did not recognize the external device after it was connected.
The secondary IDE data cable is not compatible with the hard disk.
Check the documentation that came with the device to see if any device drivers need to be installed. If necessary install the correct device drivers.
Make sure the cables for the new external device are firmly connected and the pins in the cable and connector are not bent.
To enable your computer to detect the new external device, do the following:
1 Turn off the computer. 2 Power on the external device. 3 Turn on the computer.
Do the following: 1 Turn off the computer.
2 Reattach the external device and
power it on. 3 Turn on the computer.
Reinstall the second Ultra A TA hard disk using the 80-conductor primary IDE hard disk data cable.
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Internet problems
Problem Possible causes Possible remedies
5 Troubleshooting58
Cannot register Windows operating system when attempting a Web-based online registration.
Cannot connect to the internet.
Cannot access a particular website.
You do not have an ISP (internet service provider) account.
Dial-up option may not be properly configured.
Internet site filtering is enabled. Set the desired level of internet security
Choose an ISP and install appropriate software provided by the ISP before accessing the internet.
In the Windows operating system, configure Internet setup using the Internet Connection Wizard.
and filtering. Refer to your Web browser software documentation for more information.
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Keyboard problems
Problem Possible causes Possible remedies
59
Keyboard does not work. The PS/2 keyboard was connected after
your computer was powered on.
Make sure the keyboard is firmly connected to the PS/2 keyboard port (purple port) or USB port. If it does not work, contact your HP authorized service provider for assistance.
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Memory problems
Problem Possible causes Possible remedies
5 Troubleshooting60
System cannot boot or does not function properly after installing additional memory modules.
Memory count during POST is wrong.
Insufficient memory error during operation.
Memory module is not the correct type or speed grade for the system or the new memory module is not securely inserted into the socket.
The memory modules may not be correctly installed.
Too many Terminate and Stay Resident Programs (TSRs) are installed.
There is not enough memory for the program.
Replace module with the correct industry-standard memory type for your computer.
Make sure the memory module is inserted securely into the socket. See page 10 for the location of the memory sockets on the mainboard.
Make sure the memory modules are the correct industry-standard type and are firmly and securely installed.
Close any TSR that you do not need.
Refer to the documentation that came with the software program. If necessary, install additional memory. See “Installing additional memory” on page 41 for more information.
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Modem/Fax problems
If you have installed a modem and are experiencing problems, this section may provide helpful information. Be sure to also refer to the modem documentation.
The following factors may affect the modulation speed at which your computer communicates:
The maximum communication speed of a call is determined by the speed of the slowest modem on the connection. Many modems automatically negotiate the fastest possible speed with the modem you dial.
Phone line conditions may affect the speed at which your modem actually communicates on any call. Many modems are designed to establish a reliable connection automatically at a lower speed, if required, to overcome noise or other problems with the phone line.
If you are unable to resolve a problem, contact your modem manufacturer or supplier for assistance.
Problem Possible causes Possible remedies
61
No dial tone. The modem is incorrectly connected or
driver is not installed. Phone service is not connected to the
telephone jack on the modem.
The phone is connected to a digital PBX jack.
Refer to the modem documentation for proper installation instructions.
Do the following: 1 Unplug the phone cable from the
modem’s telephone jack.
2 Connect a telephone to the
telephone line jack, pick up the headset, and listen for a dial tone. If there is a dial tone, reconnect the modem telephone jack with the phone cable and make sure all connections are secure. If there is no dial tone, contact your local phone company or building manager.
Plugging the modem into a digital line results in no dial tone. Reconnect the modem cable to an analog phone jack; then reestablish the connection.
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Problem Possible causes Possible remedies
5 Troubleshooting62
No dial tone. The modem is not responding to
commands from your computer.
Modem/fax loses
Lost carrier. Redial the number and try to reconnect. connection, the telephone line is very noisy and the call is cut off, or you encounter garbled or missing characters or slow data transfer speed.
The connection from the phone line to
the modem is loose.
Follow these steps: 1 Click Start All Programs
Accessories Communications Hyper Terminal.
2 Go to Terminal Mode, then type AT
and press Enter.
3 If the modem displays OK, the
modem and your computer are working together. If the modem displays ERROR or does not respond, restart your computer and repeat Steps 1 and 2.
4 Type ATDT and listen for a dial
tone.
5 Type ATHO to hang up.
Disconnect then reconnect the phone cable. Reestablish the connection.
Call waiting has not been disabled. To disable call waiting:
1 Click Start > Control Panel > Phone
and Modem and Options.
2 From the General tab of the Modem
properties page, click Dialing Properties.
3 From the My Location tab of the
Dialing Properties page, check the box labeled “This location has Call Waiting”; then select *70, 70#, or 1170 from the drop-down list or contact your local telephone provider for the deactivation code to disable Call Waiting for your dialing area.
Another telephone on the same phone
line is off the hook.
Be sure that all telephones connected to your modem/fax are hung up properly.
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Problem Possible causes Possible remedies
63
Modem fails to connect to the ISP or remote system.
Modem fails to send fax completely.
Recurring prompt to confirm country selection.
Unable to connect the internal modem speed at above 33.6 kps (56k modems only).
An error was encountered during the
modem connection process.
Redial the number and try to reconnect. If problem persists, contact your ISP's technical support hotline or your system administrator.
An error was encountered during
Re-send fax.
transmission.
Current country modem selection does
not match the initial default.
To disable these reminders, change the Home Country selection to match the Current Country selection.
The site called does not support 56K or
supports an incompatible 56K
implementation.
The internal modem supports K56flex and v.90. Information about ISPs that support these protocols can be found on the HP website at www.hp.com
This site also contains information about updates that may be available for the 56K White Paper about 56K technology.
The phone line used does not support
56K implementation.
The 56K protocol requires that the phone line used must contain not more than one analog-to-digital conversion. Try connecting from an alternate phone line.
The phone line used is noisy. The 56K protocol will fall back to lower
speeds if the phone line is too noisy for a high-speed connection. Try switching to another phone line.
Difficulty using the modem/ fax.
Modem/fax does not respond to modem/fax software.
Modem reports improper setup.
Your modem type is not listed, and you do not have an option diskette.
The modem/fax software may be
conflicting with other applications.
More than one device is assigned to a
serial or COM port.
The modem is not listed in the menu of
modem brands/types.
Your modem is not listed in the menu of
modem brands/types.
Certain applications may conflict with the computer built-in modem/fax software. Close any program that you are not using.
Do the following: 1 Click Start Control Panel
Phone and Modem Options.
2 Verify that each COM port has only
one device assigned to it. To change a modem COM port, open the Modem Properties dialog box and select a different COM port.
Ensure that networking protocols and dial-up networking are correctly configured.
Select Standard Modem if the choices does not match your modem type.
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Problem Possible causes Possible remedies
5 Troubleshooting64
Unable to insert phone line in modem.
When starting a dial-up connection, your phone number comes up first.
Attempting to use the wrong jack. Plug the telephone line into the jack
marked Line then connect the phone receiver into the jack marked Phone.
Dialing properties were configured
incorrectly.
Check dialing properties, especially the number to reach an outside line.
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Network problems
If you have installed a NIC (network interface card), and are experiencing problems, this section may provide helpful information. Refer also to the documentation that came with your NIC.
Problem Possible causes Possible remedies
65
Remote wake-up feature is not working.
Network status link does not turn on or flash.
Network controller stops working when an expansion board is added to the computer.
The remote wake-up feature is disabled. Enable the Remote wake-up function.
No active network is detected. Check the cabling and network
equipment for the proper connection.
The system is configured for the AUI
(attachment unit interface) connection.
The network controller detects a conflict
between the resource settings and an
expansion board.
The network controller requires drivers. Follow these steps:
The files containing the network drivers
are corrupted.
No solution; the link LED does not apply to the AUI connections.
Reinstall the network drivers.
1 Click Start Control Panel
System  Hardware  Device Manager tab.
2 Double-click Network adapters. If
there is a problem, NIC will appear in the list with a yellow circle and an exclamation point beside it.
3 Double-click Network adapters to
see the device status and a list of problems.
Resolve all resource issues. Verify that drivers were not accidentally deleted when drivers for a new expansion board were installed.
The files containing the network drivers
are corrupted. The network controller stops
working without an apparent cause.
The files containing the network drivers
are corrupted.
The cable is not securely connected. Make sure the cable is firmly and
The network controller is defective. Contact your HP authorized service
Reinstall the network drivers using your backup diskette.
Reinstall the network drives using your backup diskette.
securely connected to the network port and the other end of the cable is attached securely to the correct device.
provider for assistance.
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Pointing device problems
Problem Possible causes Possible remedies
5 Troubleshooting66
Device driver is loaded but pointing device does not work.
The wrong mouse has been selected. If you are running Windows operating
system, click Start Control Panel Add Hardware, then use the arrow keys to highlight the Mouse icon in the selection box and choose the correct mouse hardware.
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Printer problems
Note: If you have problems installing your printer, refer to the printer’s documentation or contact the printer manufacturer for assistance.
Problem Possible causes Possible remedies
67
Printer will not turn on. The cables are not properly connected or
the printer is unplugged.
Printer will not print. The printer is not powered on or is
offline.
The correct printer drivers for your
application are not installed.
You are on a network and are not
mapped to the correct printer. Printer prints garbled
information.
Printer is listed in Windows as having its own driver, but it prints garbled information after setup.
The correct printer drivers for your
application are not installed.
The cables are not connected properly. Reconnect all cables.
Printer drivers are incorrect. Remove and reinstall the correct printer
Make sure that the printer is connected to an electrical outlet and that it is turned on.
Make sure that the printer cable is firmly connected to the system’s parallel port or a USB port and the corresponding port on the printer. See “Connecting your printer” on page 29 for information on how to connect the printer to your computer.
Turn on the printer and verify that it is online.
If you are running Windows operating system, install the necessary printer drivers using the Add New Hardware wizard.
Map to the correct network printer.
Install the correct printer driver for your application.
drivers.
Cannot install printer drivers.
Wrong installation procedure. Refer to the printer driver documentation
or to the MS Windows manual.
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Screen and display problems
Problem Possible causes Possible remedies
5 Troubleshooting68
Blank screen The monitor is not turned on, and the
monitor light is not on.
The cable connections are not correct. Make sure the monitor cable is firmly
Y ou are using a fixed-sync monitor , and it
will not sync with the chosen resolution.
Screen saver has been initiated, or
Power Management is enabled. Characters on the monitor
screen appear dim.
Monitor overheats Insufficient ventilation space for proper
The brightness and/or contrast controls
are not set properly.
The cables are not connected properly. Make sure the video cable is firmly and
airflow.
Turn the monitor on. Check that the monitor light is on.
connected to the VGA port (blue port) located on the rear panel of your computer.
Make sure that the monitor is connected to an electrical outlet.
Make sure the monitor can accept the same sweep rate as the selected resolution.
Press any key to return the screen to normal.
Adjust the monitor brightness and contrast controls. For instructions refer to the monitor’s documentation.
securely connected to the video card and monitor.
Leave at least 3 inches (7.6cm) of ventilation space. Make sure nothing is sitting on top of the monitor to obstruct airflow.
Blurry display, or the requested resolution cannot be set.
The picture is broken up or it rolls, jitters, or blinks.
If the graphics controller was upgraded,
the correct display drivers may not be
loaded.
The monitor is connected incorrectly, or
the monitor is adjusted incorrectly.
Install the display drivers included in the upgrade kit on the diskette.
Make sure the monitor cable is firmly connected to the VGA port (blue port) located on the rear panel of your computer.
If your monitor is in close proximity to another monitor, move the two monitors farther apart to ensure that they are not interfering with each other’s electromagnetic fields.
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USB problems
Problem Possible causes Possible remedies
69
External device connected to a USB port does not work.
External devices on the lower tiers do not work.
The operating system limits external
devices connected by USB to two tiers,
which can include no more than two
hubs on the first tier and no more than
one keyboard and one pointing device on
the first or second tier.
An un-powered hub is connected to
another un-powered hub.
Reduce the number of connected external devices to no more than two hubs (one of this must be a powered hub) on the first tier and no more than one keyboard and one pointing device on the first or second tier.
Some USB devices require additional power. Refer to the documentation that came with the device.
Use only powered USB hubs. Verify that all un-powered hubs are immediately preceded by powered hubs in the USB chain.
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