Table 51. Symptoms and user actions for server startup problems (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 5 “
Parts listing, System x3850 X6 and x3950 X6 Type 6241
” on page 201 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by
(Trained service technician)
, that step must be performed only by a Trained
service technician.
Symptom
Action
The external USB device is not
recognized.
1. Make sure that the proper drivers are installed on the standard I/O book. See
the documentation that comes with the USB device for information about
device drivers.
2. Use the Setup utility to make sure that the device is configured correctly.
3. If the USB device is plugged into a hub or the console breakout cable, unplug
the device and plug it directly into the USB port on the rear of the standard I/O
book.
4. Run the DSA USB diagnostic tests.
The server resets (restarts)
unexpectedly.
1. Check the IMM event log for messages associated with the restart event and
resolve the issue. Some correctable errors require that the server reboots so
that it can disable a device, such as a memory DIMM or a microprocessor to
allow the machine to boot up properly.
2. If the server restart occurs during POST, and the POST watchdog timer is
enabled (select
System Settings
-->
Recovery
-->
System Recovery
-->
POST Watchdog Timer
in the Setup utility (see “Starting the Setup utility” on
page 123 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 the Appendix D “UEFI/POST error codes”
on page 1925 and the Appendix B “DSA diagnostic test results” on page 345.
3. If the server restart occurs after the operating system starts, disable any
automatic server restart (ASR) utilities, such as the Automatic Server Restart
IPMI Application for Windows, or any ASR devices that are be installed.
Note:
ASR utilities operate as operating-system utilities and are related to the
IPMI device driver. If the reset continues to occur after the operating system
starts, the problem might be with the operating system; see “Software
problems” on page 193.
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