Dell OptiPlex 980 (Early 2010) - Manual (Page 73)

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I/O Panel
Dell™ OptiPlex™ 980 Service Manual—Mini-Tower
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 I/O Panel
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the drive cover .
3. Remove the front panel .
4. Disconnect the I/O panel data cable from the system board.