Dell OptiPlex E1 - Manual (Page 49)

Removing and Replacing Parts 4-3
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To remove the computer cover, follow these steps:
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Three plastic hooks on the inside-front part of the cover secure it to the
chassis.
Before you reinstall the cover, fold all cables out of the way so that they do not
interfere with the cover or with proper airflow inside the computer.
NOTE: After removing and replacing the cover, the chassis intrusion detector
alerts you that the cover has been removed. Refer to “Chassis Intrusion Detec-
tion” in Chapter 1, “System Overview” for instructions on resetting the
chassis intrusion detector.
securing
buttons (2)
front of computer