Dell OptiPlex 780 - Manual (Page 77)

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System Board
Dell™ OptiPlex™ 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 System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the memory .
3. Remove the video card .
4. Remove the heat sink .
5. Disconnect the processor fan cable.
6. Disconnect the processor power cable.