Replacing The System Board - Dell OptiPlex GX745 User'smanual

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Replacing the System Board
Dell™ OptiPlex™ 745 User's Guide
Removing the System Board: Mini Tower, Desktop, Small Form Factor, and Ultra-Small Form
Factor Computers
1. Follow the procedures in Before You
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.
2. Remove any components that restrict access to the system board (optical drive(s), floppy drive, hard drive, I/O panel (as applicable).
3. Remove the processor and heat sink assembly:
mini tower: see Processor
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desktop: see Processor
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small form-factor: see
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ultra-small form factor: see
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4. Disconnect all cables from the system board.
5. Remove the screws from the system board.
mini tower: Mini Tower System Board Screws
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desktop: Desktop System Board Screws
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small form-factor: Small Form Factor System Board Screws
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ultra-small form factor:
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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
1 mini tower system board
2 screws (10)
Desktop System Board Screws
Begin.
Processor
Processor
Ultra Small Form Factor System Board Screws