Troubleshooting Procedures - Sun Microsystems Ultra 20 User Manual

2.3

Troubleshooting Procedures

TABLE 2-1
workstation. Possible solutions are listed for each problem. If the solutions listed
here do not fix the problem, run the appropriate diagnostic test (see
TABLE 2-1
Problem
Workstation does
not power on when
the front-panel
Power button is
pressed.
Workstation halts
during POST
without displaying
error messages.
Workstation powers
on, but the monitor
does not.
CD or DVD does not
eject from the media
tray when you press
the Eject button.
2-4 Sun Ultra 20 Workstation User Guide • August 2006
contains possible problems that might arise during the use of your
Troubleshooting Procedures
Possible solution
Keep notes on the following situations in case you need to call Sun
technical support:
• Is the Power button LED illuminated on the front of the system?
Ensure that the power cord is connected to the system and to a
grounded power receptacle.
• Does the wall outlet have power? Test by connecting another
device.
• Does the system beep when the system is powered on? Ensure
that the keyboard is plugged in.
• Test with another keyboard that you know is functional. Does the
system beep when you connect the keyboard and power on the
system?
• Does the monitor sync within 5 minutes after the power-on? The
green LED on the monitor stops flashing and remains illuminated.
• Is the monitor connected to the onboard video connector or PCI
Express video connector?
Check the BIOS POST LED display on the motherboard. See
Appendix C
• Is the Power button for the monitor turned on?
• Is the monitor power cord connected to a wall outlet?
• Does the wall outlet have power? Test by connecting another
device.
• Is the monitor connected to the onboard video connector or PCI
Express video connector?
• Move the mouse or press any key on the keyboard. The drive
might be in the low-power mode.
• Use the utility software installed on your workstation to eject the
CD.
for detailed information on the POST codes.
Chapter 3).