Sun Microsystems SUN BLADE 150, Service Manual

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10-2 Sun Blade 150 Service Manual • June 2002
10.2 OpenBoot Emergency Procedures for
Systems With USB Keyboards
The following sections describe how to perform the functions of the Stop-
commands on systems that have USB keyboards.
10.2.1 Stop-A Functionality
Stop-A (Abort) works the same as it does on systems with standard keyboards,
except that it does not work during the first few seconds after the machine is reset.
10.2.2 Stop-N Equivalent Functionality
1. After turning on the power to your system, wait until the front panel power-
indicator LED begins to blink and you hear an audible beep.
2. Quickly press the front panel power switch twice (similar to the way you would
double-click a mouse).
A screen similar to the following is displayed to indicate that you have successfully
reset the NVRAM contents to the default values. If a screen similar to the following
is not displayed, repeat Steps 1 and 2.
Note –
Both POST and OpenBOOT PROM on Sun Blade 150 systems report the CPU
as an UltraSPARC IIe processor. The CPU in your system is an UltraSPARC IIi
processor.
CODE EXAMPLE 10-1
Resetting Default NVRAM Variables
Sun Blade 150 (UltraSPARC-IIe 650MHz), Keyboard Present
Copyright 1998-2002 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.6 build_10, 1024 MB memory installed, Serial #51271539.
Ethernet address 0:3:ba:e:57:73, Host ID: 830e5773.
Safe NVRAM mode, the following nvram configuration variables have
been overridden:
’diag-switch?’ is true