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5.4
Installing a Power Supply Unit (sPSU-S)
The power supply modules are installed on the rear of the chassis. Ideally, each power supply mod-
ule line cord should be connected to a different circuit for maximum fault tolerance in the event of
power problems.
Please refer to the Regulatory Compliance and Safety Information Reference Guide before con-
necting the power supplies to mains.
To insert a sPSU-S unit into the chassis:
1. Carefully seat the unit into the designated slot. Slowly slide the unit into the chassis until the unit is
completely engaged on the chassis edge.
2. Tighten the screws.
•
When using a drill-like electric screwdriver to fasten the board screws in place, do
not use more than Torque 2 force (6 lb. in) as this could damage the screws.
•
Verify that you have the correct number of power supplies installed when powering
up the system. Using fewer than the required power supplies for your specific con-
figuration may cause malfunction.
•
All power supplies must be powered simultaneously. If not powered simultaneously,
the system might not start properly.
5.5
Extracting a Power Supply Unit (sPSU-S)
To extract a sPSU-S from the chassis:
1. Disconnect the power cable.
Figure 41: Extracting an sMBE Board
Mellanox Technologies
Rev A04
67
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