Servicing Pcie Risers; Removing A Pcie Riser - Sun Microsystems Sun Fire X4450 Service Manual

4.5

Servicing PCIe Risers

PCIe cards are installed on vertical risers. You must remove the relevant riser to
access a PCIe card. You must remove all three PCIe risers when replacing the
motherboard.
Note – This is a customer-replaceable unit.
Caution – This procedure requires that you handle components that are sensitive to
static discharge. This sensitivity can cause the component to fail. To avoid damage,
ensure that you follow antistatic practices as described in
Discharge Safety Measures" on page
4.5.1

Removing a PCIe Riser

Caution – Ensure that all power is removed from the server before removing or
installing risers. You must disconnect the power cables before performing this
procedure.
1. Power off the server.
See
2. Disconnect all external cables.
3. Slide the server out of the rack.
See
4. If you are servicing a PCIe card, locate its position in the system.
5. Disconnect any data cables connected to the cards on the PCIe riser being
removed.
Label the cables to ensure proper connection later.
6. Remove the back panel PCI cross beam. [1]
a. Loosen the two captive Phillips screws on the end of the PCI cross beam.
b. Lift the PCI cross beam up and back to remove it from the chassis.
4-20 Sun Fire X4450 Server Service Manual • November 2009
Section 2.4, "Powering Off the Server" on page
Section 2.5, "Extending the Server to the Maintenance Position" on page
Section 2.7.1, "Electrostatic
2-9.
2-3.
2-5.