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6-8
Installing the Serverboard
I/O Shield
The I/O shield holds the serverboard ports in place. The I/O shield does not require
installation.
Node Installation/Removal
As with any server system, power must be removed from the serverboard
when upgrading or installing memory or processors. In the 2U Twin server, the
serverboards (nodes) are capable of being hot-swapped from the chassis, allowing
one to be powered down for servicing while the other continues operating.
Caution! Removing a node from the server affects the airflow throughout the system.
For this reason, nodes should be removed, serviced and replaced as quickly as
possible. Also note that powering down a node will power down all the hard drives
that are logically associated with it.
Removing a Node (Figure 6-10)
1. Depress the power button on the control panel to power down the node.
2. There are two latches located below the handles at the rear of the node tray.
Push both of these inward.
3. While pushing the latches inward, grasp both handles and pull the node from
the chassis.
4. Perform any service needed to the node in a timely manner.
5. Reinstall the node by pushing it into its bay until firmly seated.
Permanent and Optional Standoffs
Standoffs prevent short circuits by securing space between the serverboard and the
chassis surface. The SC827HD chassis includes permanent standoffs in locations
used by the serverboards. These standoffs accept the rounded Phillips head screws
included in the SC827HD accessories packaging.
Some serverboards require additional screws for heatsinks, general components
and/or non-standard security. Optional standoffs are used for these serverboards.
To use an optional standoff, you must place a hexagon screw through the bottom
the chassis and secure the screw with the hexagonal nut (rounded side up).
Depending upon the configuration of the serverboard being used, it is also possible
that some of the optional standoffs which are pre-installed in the chassis, may need
to be removed.
Chapter 6: Advanced Chassis Setup
6-11
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