Intermittent Problems; Keyboard, Mouse, Or Usb-Device Problems - Lenovo System x3650 M5 Installation And Service Manual

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Intermittent problems

Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is

• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained

• Go to the support website at

and new device drivers or to submit a request for information.

A problem occurs only

occasionally and is difficult to

The server resets (restarts)

occasionally.

Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.

http://www.lenovo.com/support

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

2. Check the system-error log or IMM event logs (see "Event logs" on page 77).

1. If the reset occurs during POST and the POST watchdog timer is enabled (click

System Settings ➙ Recovery ➙ System Recovery ➙ POST Watchdog Timer

in the Setup Utility to see the POST watchdog setting), make sure that sufficient

time is allowed in the watchdog timeout value (POST Watchdog Timer). If the

server continues to reset during POST, see Appendix B "UEFI/POST diagnostic

codes" on page 1055 and Appendix C "DSA diagnostic test results" on page

2. If neither condition applies, check the system-error log or IMM system-event log

(see "Event logs" on page 77).

to check for technical information, hints, tips,

Troubleshooting