HP Pavilion xt800 - Desktop PC Manuale utente
hp pavilion home pc
upgrading and servicing
the pc
The information in this document is subject to change without
notice.
Hewlett-Packard® Company makes no warranty of any kind
with regard to this material, including, but not limited to, the
implied warranties of merchantability and fitness for a
particular purpose.
HP shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the
furnishing, performance, or use of this material.
HP assumes no responsibility for the use or reliability of its
software on equipment that is not furnished by HP.
This document contains proprietary information that is
protected by copyright. All rights are reserved. No part of this
document may be photocopied, reproduced, or translated to
another language without the prior written consent ofHP.
Hewlett-Packard Company
Home Products Division
P.O. Box 4010
Cupertino, CA 95015-4010
USA
©Hewlett-Packard Company, 2000. All rights reserved.
Hewlett-Packard is a registered trademark of Hewlett-Packard
Company in the United States of America and other
countries.
Other brand or product names are trademarks of their
respective holders.
Warning: The HP Pavilion PC may come with
software that allows you to copy audio files in
the MP3 format. Unauthorized reproduction
and distribution of audio MP3 files, or any
portion of them, can result in civil and criminal
penalties.
Features of the HP Pavilion
On the top of the chassis is a CD holder (A).
Store the CDs that came with the HP Pavilion
inside this compartment, so you can quickly
locate them if you ever need to reinstall any
ofthe system applications.
To connect components to the front of the
PC, flip up the port cover (B) and plug the
cables into the corresponding connectors.
For more information about these ports, see
“Connecting External Components” in the
User’s Guide.
Note: The power supply is pre-set for the country in
which you purchased the HP Pavilion. If you move
to another location, please make sure you check
the voltage requirements in the country you reside
before turning on the PC.
Opening the Computer
Warning: The HP Pavilion is heavy; be sure
to use ergonomically correct lifting
procedures when moving the computer.
Avertissement : L’ordinateur HP Pavilion
est lourd ; suivez des procédures
ergonomiques lorsque vous le déplacez.
Warning: Electrostatic discharge (ESD) can
damage disk drives, add-in cards, and other
components. If an ESD station is not available,
wear a wrist strap attached to a metal part of
the computer. Place cards on a conductive
foam pad or inside the conductive wrapper
they came in; do not place the cards on top
of the wrapper.
Avertissement : Des décharges
électrostatiques peuvent endommager les
unités de disque, cartes d'extension et autres
composants. Si vous ne disposez pas d'une
station de protection contre les décharges
électrostatiques, portez un bracelet
antistatique relié à une partie métallique de
l'ordinateur. Placez les cartes sur un tapis en
mousse conducteur ou dans leur emballage,
mais ne les posez jamais sur leur emballage.
Warning: Do not operate the system with
the cover removed. Always replace the
cover before turning on the system.
Avertissement : N’utilisez pas le système
lorsque son capot est ouvert. Remettez
toujours le capot en place avant de mettre le
système sous tension.
Before You Begin
Read the following items before attempting
to upgrade or service the computer:
nThese procedures assume familiarity with
the general terminology associated with
personal computers and with the safety
practices and regulatory compliance
required for using and modifying
electronic equipment.
nSet up an equipment log to record the
system model and serial numbers, all
installed options, and other information
about the system. If you need this
information, it will be easier to consult the
log than to open up and examine the
system.
nHP recommends that you use an antistatic
wrist strap and a conductive foam pad
when working on the system.
nDisconnect the system from any
telecommunications links, networks,
or modems, and then disconnect the
system power source before performing
any of the procedures described in this
guide. Failure to do so before you open the
system or do any procedures can result in
personal injury or equipment damage.
Note: Disconnect the modem/phone cable before
disconnecting the power cord from the system.
To gain access to the inside of the computer,
remove the side panel.
Removing the Side Panel
You must remove the side panel to add
memory, insert add-in cards, install or
remove drives, or change the battery.
1Turn off the computer and all peripherals.
2Disconnect the modem/phone cable.
3Disconnect the power cord and all other
attached cables (such as the keyboard,
mouse, and monitor).
4Loosen the two thumb screws on the right
side of the back panel. The first time you
loosen these screws you’ll need a flathead
screwdriver. (These screws do not detach;
they’ll stay on the side panel loosely until
you tighten them again.)
5Stand behind the computer, and place one
hand on top of the chassis.
6Grasp the handle (A) with your other hand
and pull the panel towards you until it
stops.
7Lift the panel up and out. Set the panel
aside.
Removing the Fan Duct
To access some components on the
motherboard, you may need to remove the
fan duct.
Note:Make sure the computer is turned off and the
modem/phone cable and power cord are
disconnected from the computer.
1Remove the side panel (see “Removing the
Side Panel” on page 3).
2Gently lay the computer on its side.
3To disengage the fan duct (B), push down
on the two tabs (C). You can push with
your fingers or a pen.
4Rotate the fan duct down and out to
remove it from the chassis.
Removing the Drive Cage
The HP Pavilion has two drive cages. The top
cage that holds the CD drive(s) is stationary.
The bottom cage holds the diskette and hard
drive and is removable. You may need to
remove this bottom drive cage to access
internal components or to add or replace a
hard drive.
Note: Make sure the computer is turned off and the
modem/phone cable and power cord are
disconnected from the computer.
1Remove the side panel (see “Removing the
Side Panel” on page 3).
2Gently lay the computer on its side.
3Remove the fan duct (see “Removing the
Fan Duct” on page 5).
4Remove the power and IDE cables from the
back of the diskette and hard drives. Make
note of each connection before
disconnecting the cables.
5Push down on the drive cage release tab
(D).
6Hold the release tab down as you rotate
the cage up and lift it out.
Adding Memory
The motherboard contains 168-pin DIMM
(dual-inline memory module) sockets; the
exact number of sockets depends on which
model you have. You can install these types
of DIMMs in the system:
n64 MB SDRAM
n128 MB SDRAM
n256 MB SDRAM
All installed memory modules must be 168-
pin unbuffered SDRAM (synchronous
dynamic random access memory) DIMMs
and compliant with the Intel®PC SDRAM
Unbuffered DIMM Specification.
The HP Pavilion ships with one or more
DIMMs, but you can replace the existing
DIMM(s) with higher capacity ones.
Installing a DIMM
To install a DIMM:
1Turn off the computer and all peripherals.
2Disconnect the modem/phone cable.
3Disconnect the power cord and all other
attached cables (such as the keyboard,
mouse, and monitor).
4Remove the side panel (see “Removing the
Side Panel” on page 3).
5Gently lay the computer on its side.
6Locate the DIMM sockets on the
motherboard.
Note: If all of the DIMM sockets are filled, you need to
remove one of the DIMMs (see “Removing a
DIMM” on page 9).
7If necessary to reach the DIMM socket,
remove the fan duct (see “Removing the
Fan Duct” on page 5).
8If necessary to reach the DIMM socket,
remove the drive cage (see “Removing the
Drive Cage” on page 5).
9Move any cabling out of the way,
ifnecessary.
10 Push down on the two retaining clips on
the ends of the DIMM socket.
11 Holding the new DIMM by its edges only,
remove it from the antistatic packaging.
(Avoid touching the memory chips or the
gold contacts on the DIMM.) The DIMM
has two small notches on the lower edge
that fit into raised bumps in the DIMM
socket.
12 Hold the DIMM in alignment with the
socket, aligning the notches with the
bumps.
13 Push straight down on top of the DIMM
until it is fully seated in the socket. The
retaining clips on the ends of the socket
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