Working Inside Your Computer: Dell Precision WorkStation 410 Desktop Systems
Your Dell Precision 410 supports a variety of internal options that expand
system capabilities. This chapter prepares you to install options inside the
computer. It describes how to remove and replace the computer cover and
rotate the power supply away from the system board. It also familiarizes you
with the internal components you may handle if you install Dell hardware
options.
To make working inside your computer easier, make sure you have adequate
lighting and a clean work space. If you temporarily disconnect cables or
remove expansion cards, note the position of the connectors and slots so
that you can reassemble the system correctly.
You will use the information in this section every time you install a
hardware option inside your computer. Read this section carefully, because
the information is not repeated in detail elsewhere in this guide.
Working inside your computer is safe - if you observe the following
precautions.
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WARNING
OR YOUR PERSONAL SAFETY AND PROTECTION OF YOUR EQUIPMENT |
Before starting to work on your computer, perform the following steps in the
sequence indicated:
-
Turn off your computer and all peripherals.
-
Disconnect your computer and peripherals from their AC power sources. Also,
disconnect any telephone or telecommunication lines from the computer. Doing
so reduces the potential for personal injury or shock.
-
If you are disconnecting a peripheral from the computer or are removing a
component from the system board, wait 10 to 20 seconds after disconnecting
the computer from AC power before disconnecting the peripheral or removing
the component to avoid possible damage to the system board.
To verify that all power has been removed from the system, make sure that the
standby light-emitting diode (LED) on the system board has gone out. For the
location of this LED, see Figure 9-1.
-
Touch an unpainted metal surface on the computer chassis, such as the power
supply, before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer
chassis to dissipate any static electricity that might harm internal
components. Also avoid touching components or contacts on a card and avoid
touching pins on a chip.
In addition, Dell recommends that you periodically review the safety
instructions at the front of this guide.
When you remove an option from its shipping carton, you may find it wrapped
in antistatic packing material designed to protect it from electrostatic
damage. Do not remove the packing material until you are ready to install
the option.
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CAUTION:
See "Protecting Against
Electrostatic Discharge" in the
safety instructions at the front of this guide. |
Use the following procedure to remove the computer cover:
-
Turn off your computer and peripherals, and make sure you unplug the computer
from its electrical outlet before you remove the computer cover. Observe the
Warning for Your Personal Safety and Protection of Your Equipment described
earlier in this chapter. Also observe the safety instructions at the front
of this guide.
-
If you have installed a padlock through the padlock ring on the back panel
(see Figure 8-1), remove the padlock.
-
Remove the cover.
From the front of the computer, press in the two securing buttons (located on
the sides of the cover toward the back). With the buttons depressed, lift
the cover at the back, allowing it to pivot up toward you (see Figure 8-2).
Disengage the plastic hooks that secure the cover to the front of the chassis,
and lift the cover away.
Figure 8-2. Removing the Computer Cover
Use the following procedure to replace the computer cover:
-
Check all cable connections, especially those that might have come loose
during your work. Fold cables out of the way so that they do not catch on
the computer cover. Make sure cables are not routed over the drive
cage - they will prevent the cover from closing properly.
-
Check to see that no tools or extra parts (including screws) are left inside
the computer's chassis.
-
Replace the cover.
Facing the left side of the computer, hold the cover at a slight angle as
shown in Figure 8-3. Fit the three cover hooks into the rectangular slots on
the chassis. (It might be helpful to look down into the chassis to verify
that the hooks are in place.)
Pivot the cover down toward the back and into position. Make sure that the
two securing buttons click into place.
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NOTE:
The computer should be placed
fully on a flat surface. It is difficult
to align the cover if the front of the computer is hanging over the edge of
a table. |
Figure 8-3. Replacing the Computer Cover
-
If you are using a padlock to secure your system, reinstall the padlock.
|
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NOTE:
After removing and replacing
the cover, the chassis intrusion detector
will cause the following message to be displayed at the next system start-up: |
ALERT! Cover was previously removed.
-
Reset the chassis intrusion detector by entering the System Setup program and
setting Chassis Intrusion to Not Detected.
See "Using the System Setup Program,"
for instructions.
|
|
NOTE:
If a setup password has been
assigned by someone else, contact your
network administrator for information on resetting the chassis intrusion
detector. |
Figure 8-4 shows a top view of your computer to help you orient yourself when
installing hardware options. Unless otherwise specified, locations or
directions relative to the computer are as shown.
Figure 8-4. Computer Orientation View
Figure 8-5 shows your computer with its cover removed. Refer to this
illustration to locate interior features and components discussed in this
guide.
To access some components on the system board, you may have to rotate the
system power supply out of the way. Use the following procedure to rotate
the power supply:
-
Remove the computer cover as instructed in "Removing the Computer Cover"
found earlier in this chapter.
-
Disconnect the AC power cable from the AC power receptacle on the back of the
power supply (see Figure 8-6).
Figure 8-6. Rotating the Power Supply
-
Free the power supply by pressing the securing tab labeled "RELEASE®,"
then rotate the power supply upward to a vertical position.
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