Troubleshooting the keyboard – Dell POWEREDGE 1855 User Manual
Page 36
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Monitor or monitor cable
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Keyboard/video/mouse (KVM) custom cable
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KVM module
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Server module
Action
1.
Ensure that the server module(s) is turned on.
2.
Check the monitor connection to the custom cable.
Try swapping monitor cables if another monitor cable is available.
3.
Check the custom cable connection to either the front-panel custom-cable connector on the server module or the back-panel KVM module.
4.
If the monitor does not function from the back-panel KVM module, ensure that the KVM selection indicator on the front panel of the server module is
green. If not, press the KVM selection button. See
Figure 2
-3
.
5.
If two or more server modules are installed in the chassis, press the KVM selection button on a different server module.
If the monitor is connected to the back-panel KVM module and works with another server module, the first server module may need to be reseated. See
"
Server Modules
" in "Installing System Options." If reseating the server module does not help, the server module may be faulty. See "
Getting Help
."
6.
Swap the monitor with a known-working monitor and repeat
If the monitor does not work when connected to either the front-panel custom cable or to the back-panel custom cable, the server module may be faulty.
See "
Getting Help
."
If the monitor works in the back-panel custom cable and not the front-panel custom cable, the front-panel custom cable may be faulty. See "
Getting
Help
."
If the monitor works in the front-panel custom cable and not the back-panel custom cable, the KVM module or the back-panel custom cable may be
faulty. See "
Getting Help
."
Troubleshooting the Keyboard
Problem
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A symptom of a keyboard problem is indicated by a system message
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Keyboard or keyboard cable
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Keyboard/Video/Mouse (KVM) custom cable
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KVM module
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Server module
Action
1.
Ensure that the server module(s) is turned on.
2.
Check the keyboard connection to the custom cable.
3.
Check the custom cable connection to either the front-panel custom cable connector on the server module or to the back-panel KVM module.
4.
If you are connecting a keyboard to the front-panel custom cable connector, test the keyboard and front-panel custom cable on a different server
module, if available.
5.
If the keyboard does not function from the back-panel KVM module, ensure that the KVM selection indicator on the front panel of the server module is
NOTE:
See "
KVM Modules
" in " Indicators, Codes, and Messages" for instructions on how to select a server module from the keyboard connected
to the KVM module.
NOTE:
After pressing the KVM selection button, allow approximately two seconds for the KVM functions to change to a different server module.
NOTE:
USB keyboard devices can be connected only to the front-panel custom cable, and PS/2 keyboard devices can be connected only to the back-
panel custom cable.