Dell Dimension 2400 Series 매뉴얼 - 페이지 31

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Dell Dimension 2400 Series 매뉴얼
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System Board
Dell™ Dimension™ 2400 Series 
  Removing the System Board
  Installing the System Board
 

Removing the System Board

 
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual or Product Information
Guide.
1.
 Shut down the computer
through the Start menu.
2.  Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
 
NOTICE:
To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
3.  Disconnect any telephone or telecommunication lines from the computer.
4.  Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
 
CAUTION:
To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
5.
 Remove the computer
cover.
 
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.
6.
 Remove the floppy
drive.
7.
 Remove any cards
that are installed.
8.  Disconnect all cables from the system board.
9.  Lift up the heat-sink shroud.
 
CAUTION:
The microprocessor heat sink can get hot. To avoid burns, ensure that the heat sink has had sufficient time to cool before you touch it.
10.
 Remove the microprocessor heat
11.  Remove the fan assembly.
12.  Remove the 12 screws that secure the system board to the computer frame.
 
Four of the 12 screws that secure the system board to the computer frame also secure the heat-sink base to the system board.
 
sink.