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3.8 Power Supply
The chassis features dual redundant power supplies. Please exchange the power modules
within one minute. New units can be ordered directly from Supermicro or authorized distributors.
These power supplies are auto-switching capable. This feature enables them to automatically
sense the input voltage and operate at a 100-120 VAC or 180-240 VAC. An amber light will
be illuminated on the power supply when the power is off. An illuminated green light indicates
that the power supply is operating.
Replacing the Power Supply
1. Use the operating system to power down all nodes.
2. Unplug the AC cord from the module to be replaced.
3. Release the locking clip to unlock the power supply module
4. Pull out the locking lever and remove the unit. To release the lever, squeeze the two
metal plates of the lever with your thumb and fingers, and then pull the module out.
5. Replace the failed power module with the same model.
6. Push the new power supply module into the power bay until it clicks.
7. Plug the AC power cord back into the module.
Chapter 3: Maintenance and Component Installation
Locking Clip
Figure 3-16. Power Supply Release Tab
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Locking Lever
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Troubleshooting
