How to set the default values of the OBP parameters on a Sun Fire system

The newer systems are using the USB Keyboards and Mice. Unlike the older 8pin mini-din keyboards, these systems do not accept the "STOP-N" key sequence to reset the OBP parameters. The following steps are needed to temporarily set the default values, and stop the system at the "ok" prompt:

1. Press the Power button and wait until the system Fault LED on the front panel begins to blink.

2. Immediately press the Power button twice (with a short, one-second delay in between presses).

A screen similar to the following is displayed to indicate that you have successfully reset the OpenBoot NVRAM configuration variables to their default values:

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Sun Fire xxx (8 X UltraSPARC-III), Keyboard Present

OpenBoot x.x, 256 MB memory installed, Serial #xxxxxxxx.

Ethernet address xx:xx:xx:xx:xx:xx, Host ID: xxxxxxxx.

Safe NVRAM mode, the following nvram configuration variables have been overridden:

diag-switch? is true
use-nvramrc? is false
input-device , output-device are defaulted
ttya-mode , ttyb-mode are defaulted                  

These changes are temporary and the original values will be restored after the next hardware or software reset.

ok

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