Bull NovaScale 4020, User Manual

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System Description 15
NOTES
Do not attempt to operate this system with less than a fully populated, six
system fan configuration.
To maintain adequate cooling for system components, the swap process
must be completed in two-minutes. This period only applies to the time
that the fan or power supply is removed from the system, not from the
time of failure.
A system fan failure is indicated by the corresponding fan LED and by the Cooling Fault LED
on the front panel. The system fan LEDs are shown in the figure below. The LED is amber and
turns on if a system fan failure occurs. These LEDs can be seen only when the top cover is
removed from the chassis.
TP00310
A
A. Fan LEDs (two of six pointed out)
Figure 15. System Fan Status LED