HP t410, Troubleshooting Manual

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Table 2-2 Power-On Troubleshooting (continued)
A newly connected unknown USB
peripheral does not respond or USB
peripherals connected prior to the newly
connected USB peripheral will not
complete their device actions. An unknown USB peripheral may be connected and disconnected to a running
platform as long as you do not reboot the system. If problems occur, disconnect
the unknown USB peripheral and reboot the platform.
Video does not display. 1. Verify that the monitor brightness is set to a readable level.
2. Verify the monitor is good by connecting it to a known working computer
and ensure its front LED turns green (assuming the monitor is Energy Star
compliant). If the monitor is defective, replace it with a working monitor
and repeat testing.
3. Re-image the thin client unit and power on the monitor again.
4. Test the thin client unit on a known working monitor. If the monitor does
not display video, replace the thin client unit.
Troubleshooting Flowcharts
NOTE: uBoot does not display any error messages. Beep codes are listed in Beep Codes
on page 5 .
Troubleshooting 7