SAFETY: General
Observe and follow service markings:
•Do not service any product except as explained in the user documentation. Opening or removing covers that are marked with a triangular symbol with a lightning bolt might expose you to electrical shock. Components inside these compartments must be serviced only by a trained service technician.
•Use the product only with
•Operate the product only from the type of external power source indicated on the electrical ratings label. If you are not sure of the type of power source required, consult your service provider or local power company.
SAFETY: When Working Inside Your System
Before you remove the system covers, perform the following steps in the sequence indicated.
WARNING: Only trained service technicians are authorized by Dell to remove covers from the system, and access any of the internal components, unless the Dell documentation expressly states otherwise.
CAUTION: To help avoid possible damage to the system board, wait five seconds after turning off the system before disconnecting the controller.
1Turn off the system and any devices.
2Wear grounding straps that are properly grounded before touching anything inside the system.
3While you work, periodically touch an unpainted metal surface on the chassis to dissipate any static electricity that might harm internal components.
4Disconnect your system and devices from their power sources. To reduce the potential of personal injury or shock, disconnect any telecommunication lines from the system.
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WARNING: Safety Instructions