Nvidia Spectrum-2 SN3420 - Power Supplies

NVIDIA Spectrum-2 SN3000 1U and 2U Switch Systems Hardware User Manual 115
Power Supplies
NVIDIA systems that are equipped with two replaceable power supply units work in a
redundant conguration. Either unit may be extracted without bringing down the system.
To extract a power supply unit:
For a list of the FRU replacements, see “Accessory and Replacement
Parts”.
Warning
Make sure that the power supply unit that you are NOT replacing is
showing green for the power supply unit LED.
Warning
Power supply units have directional air ows similar to the fan module.
The fan module airow must coincide with the airow of all of the
power supply units. If the power supply unit airow direction is
dierent from the fan module airow direction, the system’s internal
temperature will be aected. For power supply unit air ow direction,
refer to Air Flow.
Note
When replacing a faulty fan unit in an operational switch system, do
not leave the slot unpopulated for more than 60 seconds.