Maintenance. HP ProBook 455 G2 Notebook PC, ProBook 445 G1 Notebook PC, ProBook 455 G1 Notebook PC

10 Maintenance

Adding or replacing memory modules

The computer has one memory module compartment. The capacity of the computer can be upgraded by adding a memory module to the vacant expansion memory module slot or by upgrading the existing memory module in the primary memory module slot.

WARNING!

To reduce the risk of electric shock and damage to the equipment, unplug the power cord and remove all batteries before installing a memory module.

CAUTION: Electrostatic discharge (ESD) can damage electronic components. Before beginning any procedure, ensure that you are discharged of static electricity by touching a grounded metal object.

CAUTION: To prevent information loss or an unresponsive system:

Shut down the computer before adding or replacing memory modules. Do not remove a memory module while the computer is on, in the Sleep state, or in Hibernation.

If you are not sure whether the computer is off or in Hibernation, turn the computer on by pressing the power button. Then shut down the computer through the operating system.

NOTE: To use a dual-channel configuration when adding a second memory module, be sure that both memory modules are identical.

NOTE: The primary memory is located in the bottom memory slot and the expansion memory is located in the top memory slot.

To add or replace a memory module:

1.

Save your work and shut down the computer.

2.

Disconnect AC power and external devices connected to the computer.

3.

Remove the battery (see

Inserting or removing the battery on page 40

).

4.

Remove the service door (see

Removing or replacing the service door on page 49 ).

5.

If you are replacing a memory module, remove the existing memory module: a.

Pull away the retention clips (1) on each side of the memory module.

The memory module tilts up.

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b.

Grasp the edge of the memory module (2), and then gently pull the memory module out of the memory module slot.

CAUTION: To prevent damage to the memory module, hold the memory module by the edges only. Do not touch the components on the memory module.

To protect a memory module after removal, place it in an electrostatic-safe container.

6.

Insert a new memory module:

CAUTION: To prevent damage to the memory module, hold the memory module by the edges only. Do not touch the components on the memory module.

a.

Align the notched edge (1) of the memory module with the tab in the memory module slot.

b.

With the memory module at a 45-degree angle from the surface of the memory module compartment, press the module (2) into the memory module slot until it is seated.

Adding or replacing memory modules 71

c.

Gently press the memory module (3) down, applying pressure to both the left and right edges of the memory module, until the retention clips snap into place.

CAUTION: To prevent damage to the memory module, be sure that you do not bend the memory module.

7.

Replace the service door (see

Removing or replacing the service door on page 49

).

8.

Insert the battery (see

Inserting or removing the battery on page 40 ).

9.

Connect AC power and external devices to the computer.

10.

Turn on the computer.

Cleaning your computer

Cleaning products

Use the following products to safely clean and disinfect your computer:

● Dimethyl benzyl ammonium chloride 0.3 percent maximum concentration (For example: germicidal disposable wipes. These wipes come in a variety of brand names.)

● Alcohol-free glass cleaning fluid

● Water with mild soap solution

● Dry microfiber cleaning cloth or a chamois (static-free cloth without oil)

● Static-free cloth wipes

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CAUTION: Avoid the following cleaning products:

Strong solvents, such as alcohol, acetone, ammonium chloride, methylene chloride, and hydrocarbons, which can permanently damage the surface of the computer.

Fibrous materials, such as paper towels, which can scratch the computer. Over time, dirt particles and cleaning agents can get trapped in the scratches.

Cleaning procedures

Follow the procedures in this section to safely clean your computer.

WARNING!

To prevent electric shock or damage to components, do not attempt to clean your computer while it is turned on:

1.

Turn off the computer.

2.

Disconnect external power.

3.

Disconnect all powered external devices.

CAUTION: Do not spray cleaning agents or liquids directly on any computer surface. Liquids dripped on the surface can permanently damage internal components.

Cleaning the display

Gently wipe the display using a soft, lint-free cloth moistened with an alcohol-free glass cleaner. Be sure that the display is dry before closing the display.

Cleaning the sides and cover

To clean and disinfect the sides and cover, use a soft microfiber cloth or chamois moistened with one of the cleaning solutions listed previously or use an acceptable germicidal disposable wipe.

NOTE: When cleaning the cover of the computer, use a circular motion to aid in removing dirt and debris.

Cleaning the TouchPad and keyboard

WARNING!

To reduce the risk of electric shock or damage to internal components, do not use a vacuum cleaner attachment to clean the keyboard. A vacuum cleaner can deposit household debris on the keyboard surface.

CAUTION: When cleaning the TouchPad and keyboard, do not let liquids drip between the keys.

This can permanently damage internal components.

● To clean and disinfect the TouchPad and keyboard, use a soft microfiber cloth or chamois moistened with one of the cleaning solutions listed previously or use an acceptable germicidal disposable wipe.

● To prevent keys from sticking and to remove dust, lint, and particles from the keyboard, use a can of compressed air with a straw extension.

Updating programs and drivers

HP recommends that you update your programs and drivers on a regular basis with the latest versions. Go to http://www.hp.com/support to download the latest versions. You can also register to receive automatic update notifications when they become available.

Updating programs and drivers 73

Using SoftPaq Download Manager

HP SoftPaq Download Manager (SDM) is a tool that provides quick access to SoftPaq information for

HP business computers without requiring the SoftPaq number. Using this tool, you can easily search for SoftPaqs, and then download and unpack them.

SoftPaq Download Manager works by reading and downloading, from the HP FTP site, a published database file containing computer model and SoftPaq information. SoftPaq Download Manager allows you to specify one or more computer models to determine which SoftPaqs are available for download.

SoftPaq Download Manager checks the HP FTP site for updates to the database and software. If updates are found, they are downloaded and applied automatically.

SoftPaq Download Manager is available on the HP website. To use SoftPaq Download Manager to download SoftPaqs, you must first download and install the program. Go to the HP website at http://www.hp.com/go/sdm , and follow the instructions to download and install SoftPaq Download

Manager.

To download SoftPaqs:

▲ From the Start screen, type s . In the search box, type softpaq , and then select HP SoftPaq

Download Manager. Follow the instructions to download SoftPaqs.

NOTE: If prompted by User Account Control, click Yes.

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