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Table Of Contents  How to Build Your Own PC - Save A Buck And Learn A Lot
 9  Chapter 4: Installing The Mainboard In The Case
      9  Test Fitting and Installing the Mainboard

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Choosing and Installing Standoffs
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Securing the Mainboard to the Case
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Seating the Mainboard Against the I/O Shield

As you place the mainboard, you might notice that it wants to sit about a quarter inch back from the I/O shield. This is natural. Move the board around just a bit, and push it toward the I/O shield. It should pop into location. Then, the screw holes of the standoffs should be centered under the screw holes of the mainboard.

The I/O shield has little fins sticking out which are designed to press against the I/O connectors of the mainboard. These fins help ground the mainboard (in theory, at least. If your I/O shield is plastic, I don’t see how this can work!) Plus, the pressure from these fins helps secure the mainboard in place.

After you push the mainboard toward the I/O shield and the board is properly lined-up, examine the connectors through the I/O shield. Sometimes, one of the metal fins will get in the way and be smashed so that it sits in front of the I/O connector, effectively preventing the connector’s use (Figure 68).


Figure 68: Bent fin

The back of the case shows that as the mainboard was pushed toward the I/O shield, one of the metal fins was bent and now interferes with the connector. If this happens, remove the mainboard and bend the offending fin out of the way.

 


Simply remove the board and bend any offending I/O fins back and out of the way and try again to seat the mainboard. Be sure that any fins you bend back don’t touch any part of the mainboard, or, if they do, try to make the fins only touch the metal case of the I/O connectors on the board.


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Choosing and Installing Standoffs
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Securing the Mainboard to the Case
Next Topic/Section

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How to Build Your Own PC (http://www.PCGuide.com/byop/) on PCGuide.com
Version 1.0 - Version Date: May 4, 2005

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