Dell OptiPlex 780 - Manual (Page 63)

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Riser Cage
Dell™ OptiPlex™ 780 Service Manual—Desktop
WARNING: Before working inside your computer, read the safety information that shipped with your
computer. For additional safety best practices information, see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
Removing the Riser Cage
1. Follow the procedures in Before Working Inside Your Computer .
2. Disconnect the PS/2 serial-port cable from the system board.
3. Pivot the riser-cage handle to an upright position.