Motherboard; Removing The Motherboard - Sun Microsystems Sun Blade 150 Service Manual

4. Guide the PCI card bracket tab into the back panel slot of the chassis: ensure that
the card bracket tab fits under the retaining tab on the back of the chassis.
5. At the two corners of the card, push the card into the riser board connector until
the card is fully seated.
6. If you are installing a long PCI card, depress the detent and slide the retractable
card guide forward to secure the rear of the PCI card.
7. Position the PCI card bracket retainer onto the chassis.
8. Using a No. 2 Phillips screwdriver, replace the screw securing the PCI card bracket
retainer to the system chassis.
9. Connect all external cables to the PCI card.
10. Detach the wrist strap, replace the system cover, and power on the system as
described in Chapter 9.
8.5

Motherboard

To remove and replace a motherboard, proceed as follows.
Caution – Use an antistatic mat when working with the motherboard. An antistatic
mat contains the cushioning needed to protect the underside components, to prevent
motherboard flexing, and to provide antistatic protection.
8.5.1

Removing the Motherboard

1. Power off the system, remove the system cover, and attach an antistatic wrist strap
as described in Chapter 5.
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an antistatic mat. Store ESD-sensitive components in
antistatic bags before placing them on any surface.
2. Pull the motherboard ejection lever away from the chassis to release the
motherboard from the riser board connector (
3. Slide the motherboard out of the chassis.
8-12 Sun Blade 150 Service Manual • June 2002
).
FIGURE 8-7