HP Compaq t5125 Troubleshooting Manual page 57

Troubleshooting Guide
Power-On Troubleshooting (Continued)
Issue
No link or activity on the
network RJ-45 LEDs or the LEDs
do not illuminate blinking green
after powering on the thin client
unit. (The network LEDs are
located inside the RJ-45
connector on the top, rear panel
of the thin client. Indicator lights
are visible when the connector is
installed.)
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.
www.hp.com
Diagnostics and Troubleshooting
Procedures
1. Verify that the network is not
down.
2. Make sure the RJ-45 cable is
good by installing the RJ-45
cable onto a known working
device—if a network signal
is detected then the cable is
good.
3. Verify the power supply is
good by replacing the
power cable to the unit with
a known working power
supply cable and testing it.
4. If network LED's still do not
light and you know the
power supply is good, then
reimage the unit.
5. If network LED's still do not
light, run the IP configuration
procedure on page 4-23.
6. If network LED's still do not
light, have the unit serviced.
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.
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