Service manual

Chapter 10 Motherboard and Component Replacement 10-25
■ All DSIMMs (Section 10.5.2 “Replacing a DSIMM” on page 10-18).
■ UPA graphics card (Section 10.4.2 “Replacing a UPA Graphics Card” on
page 10-13).
■ All SBus card(s) (Section 10.3.2 “Replacing an SBus Card” on page 10-8).
■ NVRAM/TOD with carrier (Section 10.2.2 “Replacing the NVRAM/TOD” on
page 10-5).
Note – The NVRAM/TOD that was removed from the replacement motherboard
may be stored as a spare.
■ All CPU modules (Section 10.1.2 “Replacing a CPU Module” on page 10-3).
8. Detach the wrist strap.
9. Replace the system unit cover.
See Section 7.3 “Replacing the System Unit Cover” on page 7-4.
10. Connect all cables to the back of the system or server unit.
11. Power on the system unit.
See Section 6.1 “Powering On the System Unit” on page 6-1.
12. Reset the #power-cycles NVRAM variable to zero as follows:
a. Set the system unit power to On.
b. Press Stop-A after the system banner appears on the monitor.
c. At the ok prompt, type:
d. Verify that the #power-cycles variable increments each time the system unit
is power cycled.
Note – The Solaris operating environment power management software uses this
variable to control the frequency of automatic system shutdown if automatic
shutdown is enabled.
ok setenv #power-cycles 0