Intermittent Problems; Keyboard, Mouse, Or Usb-Device Problems - Lenovo System x3500 M4 Installation And Service Manual

Table 19. Hypervisor's symptoms and actions
Symptom
If an optional embedded
hypervisor flash device is not
listed in the expected boot
order, does not appear in the
list of boot devices, or a similar
problem has occurred.

Intermittent problems

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by '(Trained technician only)', that step must be performed only by a Trained
technician.
• Go to the IBM support website at http://www.lenovo.com/support to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Table 20. Intermittent problems and actions
Symptom
A problem occurs only
occasionally and is difficult to
diagnose.

Keyboard, mouse, or USB-device problems

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by '(Trained technician only)', that step must be performed only by a Trained
technician.
• Go to the IBM support website at http://www.lenovo.com/support to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Table 21. Keyboard, mouse, or USB-device's symptoms and actions
Symptom
All or some keys on the
keyboard do not work.
150
System x3500 M4 Installation and Service Guide
Action
1. Make sure that the optional embedded hypervisor flash device is selected on
the boot manager <F12> Select Boot Device at startup.
2. Make sure that the embedded hypervisor flash device is seated in the connector
correctly (see "Removing a USB embedded hypervisor flash device" on page
270 and "Installing a USB embedded hypervisor flash device" on page 271).
3. See the documentation that comes with the optional embedded hypervisor
flash device for setup and configuration information.
4. Make sure that other software works on the server.
Action
1. Make sure that:
• All cables and cords are connected securely to the rear of the server and
attached devices.
• 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 logs (see "Event logs" on page 141).
Action
1. Make sure that:
• The keyboard cable is securely connected.
• 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.