IBM 7378, Руководство по диагностике и обслуживанию

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21. Reset the CMOS by removing the system battery (see “Removing the battery”
on page 160).
22. Leave the system battery out of the server for approximately 5 to 15 minutes.
23. Reinstall the system battery (see “Installing the battery” on page 162).
24. Reinstall the left-side cover (see “Installing the left-side cover” on page 181);
then, reconnect all power cords.
25. Restart the server. The power-on self-test (POST) starts.
26. If these recovery efforts fail, contact your IBM service representative for
support.
The function of each switch and jumper on the system board is described in
“System board switches and jumpers” on page 17.
In-band automated boot recovery method
Note: Use this method if the system board error LED is lit and there is a log entry
or
Booting Backup Image
is displayed on the firmware splash screen; otherwise,
use the in-band manual recovery method.
1. Boot the server to an operating system that is supported by the firmware update
package that you downloaded.
2. Perform the firmware update by following the instructions that are in the
firmware update package readme file.
3. Restart the server.
4. At the firmware splash screen, press F3 when prompted to restore to the
primary bank. The server boots from the primary bank.
Out-of-band method: See the IMM documentation.
Automated boot recovery (ABR)
While the server is starting, if the integrated management module detects problems
with the server firmware in the primary bank, the server automatically switches to
the backup firmware bank and gives you the opportunity to recover the firmware in
the primary bank. For instructions for recovering the UEFI firmware, see
“Recovering the server firmware” on page 134. After you have recovered the
firmware in the primary bank, complete the following steps:
1. Restart the server.
2. When the prompt Press F3 to restore to primary is displayed, press F3 to
start the server from the primary bank.
Nx boot failure
Configuration changes, such as added devices or adapter firmware updates, and
firmware or application code problems can cause the server to fail POST (the
power-on self-test). If this occurs, the server responds in either of the following
ways:
v
The server restarts automatically and attempts POST again.
v The server hangs, and you must manually restart the server for the server to
attempt POST again.
After a specified number of consecutive attempts (automatic or manual), the Nx
boot failure feature causes the server to revert to the default UEFI configuration and
start the Setup utility so that you can make the necessary corrections to the
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide