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6-5
Checking the Airflow
Checking Airflow
1. Make sure there are no objects to obstruct airflow in and out of the server. In
addition, if you are using a front bezel, make sure the bezel's filter is replaced
periodically.
2. Do not operate the server without drives or drive trays in the drive bays. Use
only recommended server parts.
3. Make sure no wires or foreign objects obstruct airflow through the chassis.
Pull all excess cabling out of the airflow path or use shorter cables.
4. The control panel LEDs inform you of system status. See "Chapter 3: System
Interface" for details on the LEDs and the control panel buttons.
6-6
System Fans
Four fans provide cooling for the chassis. These fans circulate air through the
chassis as a means of lowering the chassis internal temperature. The SC827HD
system fans are easy to change modules. There is no need to uninstall any
other parts inside the system when replacing fans, and no tools are required for
installation.
Optional Fan Configurations
The SC827HD chassis is designed with a hot-swappable fan configuration. One
fan is wired directly to each serverboard. In the event that one of the serverboard
drawers is removed, then the fan associated with that serverboard will not function
until the drawer is replaced. If multiple controls are desired in the SC827HD, an
optional cable must be purchased separately to connect from the backplane to
each serverboard node.
Fan Configurations
Hot-Swappable Fan Default Configuration
Fans A and B connected to backplane,
backplane connected to Node A and B by adapter card
6-5
Chapter 6: Advanced Chassis Setup
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