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Installation and Replacement 3-17
Modifying Your Vanguard 6435/6455
Figure 3-8. Vanguard 6455 Motherboard Removal and Replacement
Removing the Motherboard
Power down the unit and remove the cables
and power cord.
Loosen the two captive screws on either side of
the motherboard rear panel.
Use the ejector lever to carefully slide out the
motherboard.
Place the motherboard on a clean flat surface.
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Installing the Motherboard
Carefully slide the motherboard
into the card guides within the opening. Push the motherboard into
the enclosure (make sure lever is flat against the back panel).
Make sure the edge connectors seat properly by pressing firmly on
the thumbscrews.
Hand tighten the captive screws on both sides of the rear panel. Be
sure the screws are snug.
Reconnect the cables and power cord and power up the unit.
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Caution
When inserting the motherboard, be sure
the screws are tight. If they are loose, the
motherboard could become unseated
under the weight of the attached cables.