FUJITSU BX900 S1 - Manual (Page 127)

BX900 S1 Operating Manual 127
Hot-plug components
8.4 Hot-plug power supply units
The BX900 S1 system unit has 6 bays for hot-plug power supply units
(PSU 1-6). There are two types of power supply units, standard PSU and
HE PSU, see
"Technical data" on page 21 .
V
CAUTION!
A combination of standard PSUs and HE PSUs in one BX900 S1 system
unit is not allowed.
All bays for power supply units are fitted with flaps which close automatically.
This ensures sufficient cooling of the system components when you replace a
power supply unit or fan module during operation and when there are empty
bays.
Figure 52: Numbering of the power supply unit bays
PSU 1 PSU 2 PSU 3
PSU 4 PSU 5 PSU 6