Troubleshooting usb devices, Troubleshooting the mouse – Dell POWEREDGE 1855 User Manual
Page 37
green. If not, press the KVM selection button. See
Figure 2
-3
.
6.
If two or more server modules are installed in the chassis, press the KVM selection button on a different server module.
If the keyboard 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
."
7.
Swap the keyboard with a known-working keyboard and repeat
step 5
and
step 6
. If the keyboard does not work with any server module, see "
Getting
Help
."
Troubleshooting the Mouse
Problem
l
A symptom of a mouse problem is indicated by a system message
l
Mouse or mouse cable
l
Keyboard/Video/Mouse (KVM) custom cable
l
Server module
Action
1.
Ensure that the server module(s) is turned on.
2.
Check the mouse connection to the custom cable
3.
Check the custom cable connection to the either the front-panel custom cable connector on the server module or to the back-panel KVM module.
4.
If you are connecting a mouse to the front-panel custom cable connector, test the mouse and front-panel custom cable on a different server module, if
available.
5.
If the mouse 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
.
6.
If two or more server modules are installed in the chassis, press the KVM selection button on a different server module.
If the mouse 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
."
7.
Swap the mouse with a known-working mouse and repeat
. If the mouse does not work with any server module, see "
Getting Help
."
Troubleshooting USB Devices
Problem
l
A symptom of a USB problem is indicated by a system message
l
USB device or USB device cable
l
Keyboard/Video/Mouse (KVM) custom cable
l
Server 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 mouse devices can be connected only to the front-panel custom cable and PS/2 mouse devices can be connected only to the back-panel
custom cable.
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 devices can be connected only to the front-panel custom cable. Total length of a USB cable should not exceed 3 m (9.8 ft).