Up to four 1,600 watt power supply modules can be installed in the Extreme 9920 chassis. Each power supply is self enclosed and vents directly to the rear of the chassis. If the chassis has more than two power supplies installed, power supplies are hot-swappable. The power supply slots are situated in the four contiguous slots starting from the left-hand side to the bottom and the rear of the chassis. They are numbered PSU 1 through PSU 4.
Note
Do not remove the cover from the fifth, or last, power supply slot on the far right to the bottom and the rear of the chassis.
The AC power supply does not ship installed and must be ordered separately.
Note
Electrostatic discharge (ESD) can damage electronic circuits. Do not touch electronic hardware unless you wear a grounding wrist strap or other static-dissipating device.
