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BX600 S3 Operating Manual 137
Power Supply Concept Power Supply Units
V CAUTION!
Because of chassis airflow disruption, the power supply unit slot should
not be vacant and/or uncovered for more than five minutes when the
system power is ON. Exceeding the five-minute limit may damage com-
ponents.
Each PSU dummy module includes three fans respectively.
There is one LED indicator (1 on figure 80) on the front of the PSU dummy
module for monitoring the status of built-in fans.
Figure 80: PSU dummy module
If you want to install an additional power supply unit, you must first remove the
PSU dummy module from the corresponding slot.
Ê Remove the PSU dummy module from the corresponding slot.
Removal/installation is the same as for the power supply unit (see section
“Replacing a Power Supply Unit” on page 133).
V CAUTION!
Keep the dummy module for future use. If you remove a power supply
unit and do not replace it with a new one, you must reinstall the
dummy module.
Ê Insert the additional power supply unit in the corresponding slot and connect
it to the mains.
1