HP Pavilion G4 2100 Notebook Pc Series User Guide

							8 Maintaining your computer
It is important to perform regular maintenance to keep your computer in optimal condition. This
chapter provides information about improving the performance of your computer by running tools
such as Disk Defragmenter and Disk Cleanup and by replacing a hard drive or adding memory. It also
provides information about updating your programs and drivers, instructions for cleaning your
computer, and tips for travelling with your computer.
Improving performance
Everyone wants a fast computer and by performing regular maintenance tasks, using tools such as
Disk Defragmenter and Disk Cleanup, you can drastically improve the performance of your computer.
Also, as your computer gets older, you might consider installing larger drives and adding more
memory.
Handling drives
Observe these precautions when handling drives:
●Before removing or installing a drive, shut down the computer. If you are unsure whether the
computer is off, in the Sleep state, or in Hibernation, turn the computer on, and then shut it down
through the operating system.
●Before handling a drive, discharge static electricity by touching the unpainted metal surface of
the drive.
●Do not touch the connector pins on a removable drive or on the computer.
●Do not use excessive force when inserting a drive into a drive bay.
●When the battery is the only source of power, be sure that the battery is sufficiently charged
before writing to media.
●If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective
packaging and label the package “FRAGILE.”
●Avoid exposing a drive to magnetic fields. Security devices with magnetic fields include airport
walk-through devices and security wands. Airport conveyer belts and similar security devices
that check carry-on baggage use X-rays instead of magnetism and do not damage drives.
●Remove media from a drive before removing the drive from the drive bay, or traveling with,
shipping, or storing a drive.
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							●Do not type on the keyboard or move the computer while an optical drive is writing to a disc. The
write process is sensitive to vibration.
●Before you move a computer that is connected to an external hard drive, initiate Sleep and allow
the screen to clear, or properly disconnect the external hard drive.
Replacing a hard drive
CAUTION:Drives are fragile computer components that must be handled with care. Do not drop a
drive, place items on it, or expose it to liquids, or temperature or humidity extremes. See 
Handling
drives on page 51 for specific precautions when handling drives.
CAUTION:To prevent information loss or an unresponsive system:
Before removing or installing a drive, shut down the computer. If you are unsure whether the
computer is off, in the Sleep state, or in Hibernation, turn the computer on, and then shut it down
through the operating system.
1.Save your work and shut down the computer.
2.Disconnect all external devices connected to the computer.
3.Unplug the power cord from the AC outlet.
4.Turn the computer upside down on a flat surface.
5.Remove the battery.
Remove the hard drive:
1.Loosen the captive screw to release the service door (1).
2.Slide the service door forward slightly (2), lift the front right corner of the service door (3), and
then maintain an angle while removing the service door (4).
3.Disconnect the hard drive cable (1) from the computer.
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							4.Lift the hard drive (2) out of the hard drive bay.
5.Disconnect the hard drive cable (1) from the hard drive.
6.Remove the front bumper (2) and the back bumper (3) from the hard drive.
7.Remove the 4 screws (4) from the hard drive and remove the bracket (5) from the hard drive.
To install a hard drive, reverse this procedure.
Using HP 3D DriveGuard (select models only)
HP 3D DriveGuard protects a hard drive by parking the drive and halting data requests under either of
the following conditions:
●You drop the computer.
●You move the computer with the display closed while the computer is running on battery power.
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							A short time after the end of one of these events, HP 3D DriveGuard returns the hard drive to normal
operation.
NOTE:Because solid-state drives (SSD) lack moving parts, HP 3D DriveGuard is unnecessary.
NOTE:Hard drives in the primary hard drive bay are protected by HP 3D DriveGuard. Hard drives
connected to USB ports are not covered by HP 3D DriveGuard.
For more information, see the HP 3D DriveGuard software Help.
Using Disk Defragmenter
As you use your computer over time, the files on the hard drive become fragmented. A fragmented
drive means data on your drive is not contiguous (sequential) and, because of this, the hard drive
works harder to locate files, thus slowing down the computer. Disk Defragmenter consolidates (or
physically reorganizes) the fragmented files and folders on the hard drive so that the system can run
more efficiently.
NOTE:It is not necessary to run Disk Defragmenter on solid-state drives.
After you start Disk Defragmenter, it works without supervision. However, depending on the size of
your hard drive and the number of fragmented files, Disk Defragmenter may take more than an hour
to complete.
HP recommends defragmenting your hard drive at least once a month. You may set Disk
Defragmenter to run on a monthly schedule, but you can defragment your computer manually at any
time.
To run Disk Defragmenter:
1.Connect the computer to AC power.
2.Select Start > All Programs > Accessories > System Tools > Disk Defragmenter.
3.Follow the on-screen instructions.
For additional information, access the Disk Defragmenter software Help.
Using Disk Cleanup
Disk Cleanup searches the hard drive for unnecessary files that you can safely delete to free up disk
space and help the computer run more efficiently.
To run Disk Cleanup:
1.Select Start > All Programs > Accessories > System Tools > Disk Cleanup.
2.Follow the on-screen instructions.
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							Adding or replacing memory modules
Adding memory can help improve your computers performance. Your computer is like your physical
work area. The hard drive is the filing cabinet where you store your work and the memory is the desk
where you work. When your memory isn’t big enough to hold all your work easily, like a desk
overflowing with work, your productivity slows down. A great solution to improve performance is to
expand the amount of memory you have in your computer.
The computer has two memory module slots. The memory module slots are located on the bottom of
the computer under the service door. The memory capacity of the computer can be upgraded by
adding a memory module or replacing the existing memory module in one of the memory module
slots.
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.
NOTE:To use a dual-channel configuration with a second memory module, be sure that both
memory modules are identical.
To add or replace a memory module:
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.
1.Save your work and shut down the computer.
2.Disconnect all external devices connected to the computer.
3.Unplug the power cord from the AC outlet.
4.Turn the computer upside down on a flat surface.
5.Remove the battery from the computer.
6.Loosen the captive screw to release the service door (1).
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							7.Slide the service door forward slightly (2), lift the front right corner of the service door (3), and
then maintain an angle while removing the service door (4).
8.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 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.
9.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 into the memory module slot (2) until it is seated.
c.Gently press the memory module (3) down, applying pressure to both the left and right
edges of the module, until the retention clips snap into place.
CAUTION:To prevent damage to the memory module, be sure that you do not bend the
module.
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							10.Replace the service door.
11.Replace the battery.
12.Turn the computer right-side up, and then reconnect external power and external devices.
13.Turn on the computer.
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							Updating programs and drivers
HP recommends that you update your programs and drivers on a regular basis to the latest versions.
Updates can resolve issues and bring new features and options to your computer. Technology is
always changing, and updating programs and drivers allows your computer to run the latest
technology available. For example, older graphics components might not work well with the most
recent gaming software. Without the latest driver, you would not be getting the most out of your
equipment.
Go to 
http://www.hp.com/support to download the latest versions of HP programs and drivers. In
addition, register to receive automatic update notifications when they become available.
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							Cleaning your computer
Cleaning your computer and external devices helps keep them in good working condition. If you dont
clean your computer, dust and dirt particles can build up.
CAUTION:Avoid using the following cleaning products to clean your computer:
Strong solvents, such as alcohol, acetone, ammonium chloride, methylene chloride, and
hydrocarbons, which can permanently damage the surface of the computer.
Cleaning the display, sides, and cover
Gently wipe the display using a soft, lint-free cloth moistened with an alcohol-free glass cleaner. Allow
the display to dry before closing the computer cover.
Use a pre-moistened germicidal wipe to clean the sides and cover. Fibrous materials, such as paper
towels, can scratch the computer.
NOTE:When cleaning the cover of the computer, use a circular motion to aid in removing dirt and
debris.
Cleaning the TouchPad and keyboard
CAUTION:Never allow liquids to drip between the keys on the keyboard, even when you are
cleaning the computer. This can permanently damage internal components.
●To clean and disinfect the TouchPad and keyboard, use a soft microfiber cloth or a static-free
cloth without oil (such as a chamois cloth) moistened with an alcohol-free glass cleaner 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.
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.
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