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System Board

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.

WARNING: To guard against likelihood of electric shock, laceration by moving fan blades or other unexpected injuries, always unplug your computer from the electrical outlet before removing the cover.

Removing the System Board

1Follow the procedure in "Before Working on Your Computer" on page 9.

2Set the computer on a clean and flat surface. (If you have a mini tower computer, set it on its right side.)

3Remove the computer cover (see "Removing the Mini Tower Computer Cover" on page 19 or "Removing the Desktop Computer Cover" on page 21).

4Remove all cards from the expansion-card slots (see "Cards" on page 29). Insert them individually into static-protective packaging.

5Disconnect all CD/DVD/floppy/media card reader/hard drive data cables from the system board.

6Disconnect all front panel cables from the system board.

7Disconnect the 12-V and 24-pin power cables from the system board.

8If you intend to replace the existing system board with another system board:

a Remove the processor heat-sink assembly (see "Removing the Processor Heat-Sink Assembly" on page 85).

b Remove the memory modules from the system board (see "Removing

a Memory Module" on page 89) and place them individually into static-protective packaging.

c Remove the processor from the system board (see "Removing the Processor" on page 99) and place it into static-protective packaging.

System Board

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Dell 360 service manual Removing the System Board, 119