132 Upgrade and Maintenance Manual RX2540 M2
6.1.2 Assembly rules
– Mixed assembly of hot-plug PSUs from different power classes (e.g. class
1, class 2, or class 3) is not supported.
– Mixing of Platinum and Titanium PSU within same class (e.g. class 2) within
a system is not supported.
– Mixing of Platinum PSUs within same class and different manufacturer (e.g.
class 1) within a system is supported.
– Always install a dummy cover into an unused PSU bay to comply with
applicable EMC regulations and satisfy cooling requirements.
– For a redundant power supply configurations you need always two hot-plug
PSUs with the same power class.
I Note for servers using CMA (Cable Management Arm)
Regarding of removing PSUs, additional tasks are needed, due to an
interference between CMA stopper and the PSUs.
Ê Unlock the CMA stopper.
Ê Remove the CMA stopper with the mounted crossbar.
Ê Support the CMA stopper, the crossbar and the CMA including cables
with your right hand.
Ê Remove the PSU and install a dummy cover into the empty bay.
Ê Remount the complete assembly (CMA stopper, crossbar and CMA)
into the rail.
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