Power Supply - Supermicro SuperServer 420GH-TNGR User Manual

3.10 Power Supply

The chassis features four 3+1 3000W (+54V:2500W, +12V:2000W), redundant power
supplies. The power modules can be changed without powering down the system. 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 200-240v. 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. Fully rotate power supply locking handle upward.
2. Carefully and slowly pull the power supply from the rear structure.
3. Insert replacement power supply (with lock handle on fully upward position) into the rear
structure until the power supply locking handle engages with the rear structure's locking
pin.
4. Fully push power supply locking handle downward until it is locked into the rear
structure.
Chapter 3: Maintenance and Component Installation
Figure 3-20. Replacing a Power Supply
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