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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.
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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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How to Build Your Own PC (http://www.PCGuide.com/byop/) on PCGuide.com
Version 1.0 - Version Date: May 4, 2005
Adapted with permission from a work created by Charlie Palmer.
PCGuide.com Version © Copyright 2005 Charles M. Kozierok. All Rights Reserved.
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