Replacing The Pcb On The Pci Tray - Silicon Graphics O2+ Hardware Reference Manual

Chapter 5: Ordering, Removing, Upgrading, Installing Replacement Parts

Replacing the PCB on the PCI Tray

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The system serial number is stored electronically (nvram) on the printed circuit board on
the PCI tray. If nvram is corrupted, you may be instructed by your service provider to
replace the PCI tray that contains the printed circuit board. Follow these steps:
1. Turn off the workstation, remove the power cable, and remove the system module
from the chassis. See "Removing the System Module" in Chapter 2.
Note: You can find illustrations for all the following steps in "Installing a PCI Board
in an RM7000class Workstation" in Chapter 2, "Removing a PCI Board in an
RM7000class Workstation" in Chapter 2, "Installing a PCI Board in an R12000class
Workstation" in Chapter 2, and "Replacing the R12000class CPU Module" in
Chapter 5.
2. Remove the PCI tray from the system module.
3. If a PCI board is installed in the tray, remove it. If not, remove the filler panel and
screw.
4. Reinstall the PCI board into the new PCI tray. If no PCI board was installed, reinstall
the filler panel and screw.
5. Reinstall the PCI tray into the system module.
6. Reinstall the system module into the chassis. See "Reinstalling the System Module"
in Chapter 2.
7. Ship the PCI tray with the faulty PCB to SGI in the container that contained the new
PCI tray.
007-4486-001