Users Guide

Troubleshooting your system
You can troubleshoot your system using indicators like diagnostic lights, and error messages during the operation of the device.
Topics:
• Power state and LED status
• Power behavior
• Power LED error code behavior
Power state and LED status
Table 26. Power states and LED behavior
Indicator Symptoms Description
Power LED
Solid white Thin client is in working—S0 state.
Breathing white Thin client is in sleep—S3 state.
Off Thin client is in off state.
Solid amber Thin client booting is in progress.
Blinking amber Bad power supply.
NOTE: Press and hold the power button for at least 4 seconds to shut down the thin client forcibly.
Power behavior
Table 27. Power behavior
AC adapter System behavior POST error message
AC adapter power is greater than or
equal to the system power requirement
at full CPU speed.
System boots normally and allows CPU
to run at full speed.
None
AC adapter Power is less than the
system power requirements at full CPU
speed.
Lower the maximum CPU speed to a
value that does not exceed the power
available by the AC adapter.
Alert—xxxxxxW AC power adapter has
been detected, which is less than
the recommended xxxxxxW AC adapter
originally shipped. The system adjusts
the performance to match the power
available. Connect a Dell xxxxxxW AC
adapter or greater for best system
performance.
AC adapter is not genuine Dell. Limit the CPU speed to the lowest
possible value.
Alert—xxxxxxW AC power adapter has
been detected, which is less than
the recommended xxxxxxW AC adapter
originally shipped. The system adjusts
the performance to match the power
available. Connect a Dell xxxxxxW AC
adapter or greater for best system
performance.
AC adapter power is less than power
state of CPU.
No boot or error message, but the
system shuts down.
If the system is able to boot:
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62 Troubleshooting your system