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Chapter 3 Maintenance and Component Installation
Power Supply
The chassis features two high-efficiency redundant AC power supplies rate at 400W. They
are hot-swappable, meaning they can be changed without powering down the system. They
are also auto-switching capable. This feature enables them to automatically sense the input
voltage and operate at a 100-240v input voltage. 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. New units can be ordered directly from Supermicro or authorized distributors.
Changing One of the Two Redundant Power Supplies
1. Identify the power supply to be removed, then remove the power cord from the strip and
power supply.
2. Remove the power supply by pressing on the latch to unlock, then gently slide it out.
3. Insert the replacement power supply into the empty bay, then gently slide and push in to
engage.
Figure 3-8. Removing One of the Two Redundant Power Supplies
