HP t740 Hardware Reference Guide - Page 46

Diskless (No-Flash) thin client troubleshooting, USB device

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Table 4-13 Basic troubleshooting issues and solutions (continued) Issue Procedures peripheral do not complete their device actions. Video does not show anything. 1. Verify that the monitor brightness is set to a readable level. 2. Verify that the monitor is good by connecting it to a known working computer and confirm that its front light 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, and turn on the monitor again. 4. Test the thin client on a known working monitor. If the monitor does not display video, replace the thin client. Diskless (No-Flash) thin client troubleshooting This section is only for those thin clients that do not have ATA Flash capability. Because there is no ATA Flash in this model, the boot priority sequence is: ● USB device ● PXE 1. When the thin client boots, the monitor should display the following information: Table 4-14 Diskless (no flash) model troubleshooting issues and solutions 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 problem could be a bad cable, the server is down, 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, the server is down, 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, the server is down, or a bad system board. Contact the Call Center for service for the bad system board. If you are running in a Microsoft RIS PXE environment, go to step 2. 40 Chapter 4 Troubleshooting

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Table 4-13
Basic troubleshooting issues and solutions (continued)
Issue
Procedures
peripheral do not complete their device
actions.
Video does not show anything.
1.
Verify that the monitor brightness is set to a readable level.
2.
Verify that the monitor is good by connecting it to a known working computer
and confirm that its front light 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, and turn on the monitor again.
4.
Test the thin client on a known working monitor. If the monitor does not display
video, replace the thin client.
Diskless (No-Flash) thin client troubleshooting
This section is only for those thin clients that do not have ATA Flash capability. Because there is no ATA Flash
in this model, the boot priority sequence is:
●
USB device
●
PXE
1.
When the thin client boots, the monitor should display the following information:
Table 4-14
Diskless (no flash) model troubleshooting issues and solutions
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 problem could be a bad cable, the server is down, 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, the server is down, 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, the server is down, or a
bad system board. Contact the Call Center for service for the
bad system board.
If you are running in a Microsoft RIS PXE environment, go to step 2.
40
Chapter 4
Troubleshooting