Dell OptiPlex 960 (Late 2008) - Manual (Page 135)

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System Board
Dell™ Optiplex™ 960 Mini Tower/Desktop/Small Form Factor Service Manual
Removing the System Board: Mini Tower, Desktop, and Small Form Factor Computers
Replacing the System Board: Mini Tower, Desktop, and Small Form Factor Computers
Removing the System Board: Mini Tower, Desktop, and Small Form Factor
Computers
1. Perform the procedure Before Working on Your Computer .
2. Remove any components that restrict access to the system board (optical drive[s], floppy drive, hard drive, I/O assembly (as applicable).
3. Remove the processor and heatsink assembly:
l Mini tower: see Processor
l Desktop: see Processor
l Small form factor: see Processor
4. Disconnect all cables from the system board.
5. Remove the screws from the system board.
l Mini tower: see Mini Tower System Board Screws
l Desktop: see Desktop System Board Screws
l Small form factor: see Small Form Factor System Board Screws
6. Slide the system board assembly toward the front of the computer, and then lift the board up and away.
Mini Tower System Board Screws
Desktop System Board Screws
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of
the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal
components.
1 mini tower system board 2 screws (11 — 7 on system board,
2 on retention bar, 2 on heatsink shroud)