HP T5540 Troubleshooting Guide: HP t5630, t5545, t5145, and t5540 Thin Clients - Page 37

Diskless (No-Flash) Unit Troubleshooting, Power-On Troubleshooting continued - video problems

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Table 5-4 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. Diskless (No-Flash) Unit Troubleshooting This section is only for those units that do not have ATA Flash capability. Because there is no ATA Flash in this model the boot priority sequence is: ● USB device ● PXE To troubleshoot the unit: 1. When the unit boots, the monitor should display the following information: Table 5-5 Diskless Unit Troubleshooting Item Information Action MAC Address NIC portion of the system board is If no MAC Address, the system board is at fault. Contact OK the Call Center for service. GUID General system board information If no GUID information, the system board is at fault and should be replaced. Client ID Information from server If no Client ID information there is no network connection. This may be caused by a bad cable, down server, or a bad system board. Contact the Call Center for service for the bad system board. MASK Information from server If no MASK information there is no network connection. This may be caused by a bad cable, down server, or a bad system board. Contact the Call Center for service for the bad system board. DHCP IP Information from server If no DHCP IP information there is no network connection. This may be caused by a bad cable, down server, or a bad system board. Contact the Call Center for service for the bad system board. If you are running in an MS RIS PXE environment go to step 2. Troubleshooting 29

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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.
Diskless (No-Flash) Unit Troubleshooting
This section is only for those units that do not have ATA Flash capability. Because there is no ATA Flash
in this model the boot priority sequence is:
●
USB device
●
PXE
To troubleshoot the unit:
1.
When the unit boots, the monitor should display the following information:
Table 5-5
Diskless Unit Troubleshooting
Item
Information
Action
MAC Address
NIC portion of the system board is
OK
If no MAC Address, the system board is at fault. Contact
the Call Center for service.
GUID
General system board information
If no GUID information, the system board is at fault and
should be replaced.
Client ID
Information from server
If no Client ID information there is no network connection.
This may be caused by a bad cable, down server, or a
bad system board. Contact the Call Center for service for
the bad system board.
MASK
Information from server
If no MASK information there is no network connection.
This may be caused by a bad cable, down server, or a
bad system board. Contact the Call Center for service for
the bad system board.
DHCP IP
Information from server
If no DHCP IP information there is no network connection.
This may be caused by a bad cable, down server, or a
bad system board. Contact the Call Center for service for
the bad system board.
If you are running in an MS RIS PXE environment go to step 2.
Table 5-4
Power-On Troubleshooting (continued)
Troubleshooting
29