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Chapter 8
Replacing a power supply
8 - 6
5. Slide the DC power supply into the power supply slot.
6. Connect the wiring block that you assembled earlier to the DC
power source and be sure to connect the ground wire to a common
bonding network (CBN).
7. Insert the wiring block into the DC power supply.
8. Turn on the DC power source.
If the system does not boot after you turn on the DC power source,
press the Check button on the LCD panel to begin booting the
system.
The design of the 6900/8900 platform is such that you can remove a power
supply from the chassis without powering down the system, provided that
there is at least one power supply operating during the replacement process.
To replace a power supply
1. Disconnect the AC power cord or DC wiring block from the power
supply.
2. Loosen the power supply screw by turning it counterclockwise,
using an appropriate screwdriver if necessary.
Note: The screws that hold the power supplies to the chassis are
captive and cannot be removed.
3. Grasp the ejector handle and rotate it downward to eject the power
supply from the system.
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