HP ProLiant SL170s G6 Server Software Configuration Guide

System BIOS configuration 40
Table 23 POST Error Messages
Error
code
Error message Description/corrective action
656h System Fan 4a Missing
If system fan4a is not installed or failed, when the system
installed non-redundant fan, it will announce this message
and system will shutdown in minutes. When system
installed with redundant fan, if only one fan missing, this
will appear and the other fans will run at high speed. If
two fans missing, this will appear and system will
shutdown in minutes.
657h System Fan 4b Missing
If system fan4b is not installed or failed, when one fan
missing, system will announce this message and other fans
will run at high speed. When two fans missing at the
same time, this will appear and system will shutdown in
minutes.
658h System Fan 5a Missing
If system fan5a is not installed or failed, when the system
installed non-redundant fan, it will announce this message
and system will shutdown in minutes. When system
installed with redundant fan, if only one fan missing, this
will appear and the other fans will run at high speed. If
two fans missing, this will appear and system will
shutdown in minutes.
659h System Fan 5b Missing
If system fan5b is not installed or failed, when one fan
missing, system will announce this message and other fans
will run at high speed. When two fans missing at the
same time, this will appear and system will shutdown in
minutes.
661h System Fan 6a Missing
If system fan6a is not installed or failed, when the system
installed non-redundant fan, it will announce this message
and system will shutdown in minutes. When system
installed with redundant fan, if only one fan missing, this
will appear and the other fans will run at high speed. If
two fans missing, this will appear and system will
shutdown in minutes.
662h System Fan 6b Missing
If system fan6b is not installed or failed, when one fan
missing, system will announce this message and other fans
will run at high speed. When two fans missing at the
same time, this will appear and system will shutdown in
minutes.
663h System Fan 7a Missing
If system fan7a is not installed or failed, when the system
installed non-redundant fan, it will announce this message
and system will shutdown in minutes. When system
installed with redundant fan, if only one fan missing, this
will appear and the other fans will run at high speed. If
two fans missing, this will appear and system will
shutdown in minutes.