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Chapter 3: Maintenance and Component Installation
3.10 Power Supply
The system includes two hot-plug power supply modules. It supports both models
220HE-FTNR - AC [1200W (optional) or 2000W (default)] and 220HE-FTNRD - DC (1300W)
power supplies These modules will automatically sense the AC power supply and operate at
an input voltage between 100V to 240V and DC power supply operates at an input voltage
-48Vdc. Note that different input voltages will result in different maximum power output levels.
In the event of a power module failure, the other power module will continue to power the
system on its own. Failed power supply modules can be replaced without powering down the
system. Replacement modules can be ordered directly from Supermicro.
An amber light on the power supply is illuminated when the power is switched off. A green
light indicates that the power supply is operating.
Replacing the Power Supply
1. Unplug the AC or DC power cord from the failed power supply module.
2. Push and hold the release tab on the back of the power supply.
3. Grasp the handle of the power supply and pull it out of its bay.
4. Push the new power supply module into the power bay until it clicks into the locked
position.
5. Plug the AC or DC power cord back into the power supply module.
Figure 3-13. Installing a Power Supply Module
2
Release Tab
Note:
The AC or DC power supply uses the same procedure to replace the power supply.
