HP Compaq Presario SG3778D Service Guide

Upgrading and Servicing Guide

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The information in this document is subject to change without notice.

Upgrading and Servicing Guide ...............................................................1

Safety Information ..................................................................................................1

Opening and Closing the Computer .........................................................................1

Preparing the Computer .....................................................................................2

Before Opening the Computer.............................................................................2

After Closing the Computer.................................................................................3

Removing the Side Panel ....................................................................................3

Replacing the Side Panel .................................................................................... 4

Removing the Front Panel....................................................................................4

Replacing the Front Panel ...................................................................................5

Locating Components Inside the Computer.................................................................6

Removing and Replacing Drives ...............................................................................7

Removing an Optical Drive.................................................................................7

Adding or Replacing an Optical Drive .................................................................8

Removing the Primary Hard Disk Drive ...............................................................10

Adding or Replacing the Primary Hard Disk Drive................................................11

Removing the Memory Card Reader ..................................................................13

Adding or Replacing a Memory Card Reader .....................................................14

Adding or Replacing a Second Hard Disk Drive .................................................. 15

Removing a Second Hard Disk Drive..................................................................16

Adding Memory...................................................................................................18

Removing a Memory Module ............................................................................18

Installing a Memory Module .............................................................................19

Removing or Installing an Add-In Card ....................................................................20

Removing an Add-in Card ................................................................................20

Installing an Add-in Card..................................................................................22

Replacing the Battery ............................................................................................23

Table of Contents iii

iv Upgrading and Servicing Guide

Upgrading and Servicing Guide

Safety Information

This product has not been evaluated for connection to an “IT” power system (an AC distribution system with no direct connection to the earth, according to IEC 60950).

WARNING: Before installing and connecting your system to the electrical power system, please read “Safety Information” in the Limited Warranty and Support Guide.

This Upgrading and Servicing Guide provides instructions for removing and replacing hardware components of your computer.

Opening and Closing the Computer

Upgrading and Servicing Guide 1

Preparing the Computer

Before you can upgrade any component in your computer, you must prepare the computer so that you can safely handle it and the components.

Before attempting to upgrade or service the computer, read the following items:

1 These 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.

2 Write down and save the computer model and serial numbers, all installed options,

and other information about the computer. It is easier to consult this information than to open and examine the computer.

3 It is recommended that you use an antistatic wrist strap and a conductive foam pad

when working on the computer.

WARNING: Before removing the front and side panels of the computer, always disconnect the modem cord from the telephone system, and then disconnect the computer from the power source. Failure to do so can result in personal injury or equipment damage.

Before Opening the Computer

To avoid injury and equipment damage, always complete the following steps in this order, before opening the computer:

1 Remove any device, memory card, or optical disc (CD or DVD) from the computer.

2 Shut down the computer.

3 Disconnect the modem/telephone cable, if it is present.

CAUTION: To reduce the risk of personal injury from electrical shock or hot surfaces, disconnect the power cord from the electrical outlet, and allow the internal system components to cool before touching them.

4 Disconnect the power cord from the electrical outlet and then from the computer.

5 Disconnect all other attached cables (such as the keyboard, mouse, and monitor

cables).

6 Disconnect all external devices.

CAUTION: Static electricity can damage the electronic components of the computer or optional equipment. Ensure that you are discharged of static electricity by briefly touching a grounded metal object.

2 Upgrading and Servicing Guide

After Closing the Computer

To avoid injury and equipment damage, always complete the following steps in this order after closing the computer:

1 Reconnect the power cord.

WARNING: To reduce the risk of electrical shock, fire, or damage to the equipment, do not plug telecommunications or telephone cables into the network interface card (NIC) (labeled as an Ethernet connector).

2 Reconnect the modem/telephone cable and all other cables (such as the keyboard,

mouse, and monitor cables).

3 Reconnect the external devices.

4 Turn on the computer and all peripherals (such as the monitor).

5 If you installed an add-in card, install any software drivers supplied by the card

manufacturer.

Removing the Side Panel

1 See “Before Opening the Computer” on page 2.

2 Use a screwdriver to loosen the screw (A) that secures the side panel to the computer

chassis.

3 Use the handle to slide the panel back about 2.5 centimeters (1 inch), and then lift it

off the chassis.

WARNING: Beware of sharp edges inside the chassis.

Upgrading and Servicing Guide 3

Replacing the Side Panel

1 Align the tabs at the bottom of the side panel with the ridge on the bottom of the

chassis. Place the side panel in the proper position on the chassis, and then slide it toward the front of the chassis.

NOTE: There is a 3 millimeter gap between the top of the side panel and the top of the chassis when the side panel is attached properly.

2 Ensure that the hole for the screw is aligned with the hole in the chassis, and then

replace the screw (A).

3 See “After Closing the Computer” on page 3.

Removing the Front Panel

This procedure is necessary only when you are removing or replacing an optical drive, memory card reader, HP Media Drive bay, or the primary and secondary hard disk drives.

1 Pull the three tabs away from the outside edge of the chassis.

2 Swing the front panel (to the left) away from the chassis to remove it.

4 Upgrading and Servicing Guide

Replacing the Front Panel

1 Align the three hooks on the left side of the front panel with the holes on the left side of

the chassis, and then insert them.

2 Swing the front panel to the right (toward the chassis), and then press the three hooks

on the right side of the front panel into the three holes on the right side of the chassis until the panel snaps into place.

Upgrading and Servicing Guide 5

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