C-36 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • December 2004
C.7.9.4 Disabling the TIP Connection on the Server
● To disable the TIP connection, turn the server key switch to the lock position.
This action prevents any serial communication with the server. To re-establish serial
communications, turn the key to the unlock position.
C.7.9.5 Permanently Disabling the Keyboard Abort or Configuring an
Alternate BREAK Key Sequence on the Server
1. As superuser, edit the /etc/default/kbd file.
■ To disable the keyboard abort, uncomment this line:
■ To configure the alternate BREAK key sequence, uncomment this line:
2. Save the file.
3. Re-initialize the kbd drivers. Type:
C.8 System Thermal Management
The Sun Blade 1500 workstation uses an on-demand cooling system. The CPU fan
and system chassis fans flowrate is determined from values provided by
temperature sensors located on the motherboard and within the UltraSPARC IIIi
processor.
C.8.1 Cooling Fan Control
The Sun Blade 1500 workstation uses an Analog Devices ADM1031 thermal fan
controller to interface temperature sensors and cooling fans. The ADM1031 provides
a three-channel digital thermometer and over temperature alarms. Two pulse width
#KEYBOARD_ABORT=disable
#KEYBOARD_ABORT=alternate
# kbd -i
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