System Fans - HP ProLiant ML370 Maintenance And Service Manual

Removal and Replacement Procedures

System Fans

The server supports redundant hot-plug fans to provide proper airflow to the system. In the
standard configuration, three fans cool the system. If any one of the primary fans fails, the
system monitors the fan status and shuts down to prevent any thermal damage to components.
When the system is powered up, POST displays an error message.
In the redundant configuration, six fans cool the system. If any one of the primary fans fails,
the system detects the paired redundant fan and continues to operate without any interruption
or downtime.
Figure 2-20: System fan locations
NOTE: Fan locations are labeled in the chassis and on the system configuration labels attached to the
access panel.
Table 2-1: System Fan Locations
Item
1
2
3
Fan failure is indicated by amber LEDs located on each hot-plug fan and by the front panel
internal health LED. For fan failures, the internal health LED shows red in nonredundant
mode and amber in redundant mode.
2-22
WARNING: To reduce the risk of personal injury from hazardous energy or of damage
to the equipment when working on energized servers:
•
Remove all watches, rings, and any other loose fitting jewelry.
•
Avoid the use of conductive tools inside the server that could bridge live parts.
Description Item
Processor fan 1 4
Processor fan 3 5
Redundant I/O fan 6 6
HP ProLiant ML370 Generation 3 Server Maintenance and Service Guide
Description
I/O fan 5
Redundant processor fan 4
Redundant processor fan 2