Keyboard, Mouse, Or Usb-Device Problems; Memory Problems - Lenovo 5458 Installation And Service Manual

Table 20. Intermittent problems and actions
Symptom
A problem occurs only
occasionally and is difficult to
diagnose.

Keyboard, mouse, or USB-device problems

v Follow the suggested actions in the order in which they are listed in the Action
v If an action step is preceded by '(Trained technician only)', that step must be
v Go to the Lenovo support website at http://www.lenovo.com/support to check
Table 21. Keyboard, mouse, or USB-device's symptoms and actions
Symptom
All or some keys on the
keyboard do not work.
The mouse or USB-device does
not work.

Memory problems

v Follow the suggested actions in the order in which they are listed in the Action
v If an action step is preceded by '(Trained technician only)', that step must be
v Go to the Lenovo support website at http://www.lenovo.com/support to check
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System x3250 M5 Type 5458: Installation and Service Guide
Action
1. Make sure that:
v All cables and cords are connected securely to the rear of the server and
attached devices.
v When the server is turned on, air is flowing from the fan grille. If there is no
airflow, the fan is not working. This can cause the server to overheat and
shut down.
2. Check the system-error log or IMM2 event log (see "Event logs" on page 125).
column until the problem is solved.
performed only by a Trained technician.
for technical information, hints, tips, and new device drivers or to submit a
request for information.
Action
1. Make sure that:
v The keyboard cable is securely connected.
v The server and the monitor are turned on.
2. If you are using a USB keyboard, run the Setup utility and enable keyboardless
operation.
3. If you are using a USB keyboard and it is connected to a USB hub, disconnect
the keyboard from the hub and connect it directly to the server.
4. Replace the keyboard.
1. Make sure that:
v The mouse or USB device cable is securely connected to the server.
v The mouse or USB device drivers are installed correctly.
v The server and the monitor are turned on.
v The mouse option is enabled in the Setup utility.
2. If you are using a USB mouse or USB device and it is connected to a USB hub,
disconnect the mouse or USB device from the hub and connect it directly to
the server.
3. Replace the mouse or USB-device.
column until the problem is solved.
performed only by a Trained technician.
for technical information, hints, tips, and new device drivers or to submit a
request for information.