HP ProLiant DL740 Server - Manual (Page 243)

LED Indicators and Switches
Hot-Plug Fan LED Indicators
The ProLiant DL740 server ships with two hot-plug fans. Fan 1 is closest to the front
of the server. Each fan has an arrow-shaped status LED that indicates the status of the
fan the arrow is pointing to. Figure D-9 shows an example of the hot-plug fan
status LEDs:
• Hot-plug fan 1 LED (1)—In this case the LED is amber, which means that the
fan needs attention or is not installed.
• Hot-plug fan 2 LED (2)—In this case the LED is green, which means that the fan
is installed, and working properly.
Figure D-9: Hot-plug fan LEDs
CAUTION: Never remove both hot-plug fans while the server is powered up.
Overheating and damage to hardware could result. If the appropriate HP software
drivers are installed, the operating system software will initiate a power shutdown if
overheated.
NOTE: The hot-plug fan LEDs are not part of the fan housing. Figure D-9 shows the LEDs as
if the fan were installed in the server.
HP ProLiant DL740 Server User Guide D-11
HP CONFIDENTIAL
Writer: Anna Roberts File Name: n-appd LED Indicators and Switches.doc
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