Replacing The System Board; Mini Tower System Board Screws; Desktop System Board Screws - Dell Optiflex 740 User Manual

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Replacing the System Board
Dell™ Optiplex™ 740 Systems
User's Guide
Removing the System Board: Mini Tower, Desktop, and 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 such as: the (optical drive(s), floppy drive, hard drive, and 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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4. Disconnect all cables from the system board.
5. Remove the screws from the system board.
Mini Tower System Board Screws
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Desktop System Board Screws
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Small Form Factor System Board Screws
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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

Desktop System Board Screws

Begin.
Processor
2 screws (8)