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Chapter 3: Maintenance and Component Installation
3.10 Power Supply
The system includes two hot-plug power supply modules. These modules will automatically
sense and operate at an input voltage between 100V to 240V. 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.
Removing the Power Supply
If the power is on, removing power from the system as described in Section 3.1.
1. Disconnect all wiring from the power supply.
2. Remove the four screws which hold the power supply in the chassis. The two rear
mounting screws are located at the rear of the chassis. The two mid-chassis mounting
screws are accessed from the underside and extend upwards through the chassis. Set
the screws aside for later use.
3. Remove the power supply from the chassis.
Installing a Power Supply
1. Replace the failed power supply with another identical power supply module.
2. Align the mounting thru holes on the power supply with the mounting holes in the
chassis and reattach the power supply to the chassis using the four screws which were
previously set aside.
3. Connect the chassis wiring to the power supply.
4. Reattach the AC power cord and power on the system.
