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Management: Installing Array Components 237
Power Supply/Cooling Fan Module
The array supports two hot-swappable power supply/cooling fan modules.
While the array can operate temporarily with one module, both the modules
must be present for proper system cooling.
CAUTION: A single power supply/cooling fan module can be removed from a
powered-on array for a maximum period of five minutes. Beyond that time, the
array may automatically shut down to prevent damage.
Removing a Power Supply/Cooling Fan Module
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your product
documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Read and follow the safety instructions that came with the product.
NOTE: If you remove a fully functioning power supply/cooling fan module, the fan
speed in the remaining module increases significantly to provide adequate cooling.
The fan speed decreases gradually when a new power supply/cooling fan module
is installed.
1
Turn off the power supply/cooling fan module.
2
Disconnect the power cable from the power source.
3
Remove the velcro straps that secure the power cable and then disconnect
the power cable from the power supply/cooling fan module.
WARNING: The power supply/cooling fan modules are heavy. Use both hands
while removing the module.
4
Press the release tab and pull the power supply out of the chassis.
book.book Page 237 Wednesday, June 8, 2011 5:01 PM