Before you begin – Dell Precision 330 User Manual
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Before You Begin
Dell Precision™ WorkStation 330 Systems Service Manual
Precautionary Measures
Before you remove the computer cover, perform the following steps in the sequence indicated.
1. Turn off your computer and any peripherals.
2. Disconnect your computer and peripherals from their power sources. Also, disconnect any telephone or telecommunication lines from the computer.
Doing so reduces the potential for personal injury or shock.
3. 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.
4. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock loop on the back of the chassis. If a wrist grounding strap is not
available, touch any unpainted metal surface on the back of the computer or on the computer chassis, such as the power supply, to discharge any static charge
from your body before touching anything inside the 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.
5. Verify that the standby power indicator on the system board is not on. If it is on, you may need to wait 10 to 30 seconds for it to go out. To locate this indicator,
see "
System Board Components
" or "
Interior Service Label
."
Recommended Tools
Some of the procedures in this document require the use of a #2 Phillips-head screwdriver.
Also, use a wrist grounding strap as explained in "
."
Restarting the System
1. Replace the computer cover, reconnect the computer and peripherals to their electrical outlets, and turn them on.
ALERT! Cover was previously removed.
2. To reset the Chassis Intrusion option, enter system setup, select the System Security option, and reset the Chassis Intrusion option to Enabled or
Enabled Silent.
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NOTE:
If enabled, the Chassis Intrusion option will cause the following message to be displayed at the next system start-up:
NOTE:
When the setup password is enabled, you must know the setup password before you can reset the Chassis Intrusion option.