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Replacing the system board – Dell OptiPlex 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 Begin

.

 

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:

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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.

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Mini Tower System Board Screws

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Desktop System Board Screws

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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 (8)