
User Guide
170
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Installing and Replacing a Power Supply Unit
(Redundant Power Supply Models)
Your SAS hot-swap HDD configuration contains one or two power supplies.
The second power supply is optional and provides a redundant configuration that
ensures continuous operation of the system in the unlikely event one of the power
supplies fails
Installing a Power Supply Unit
1.
Read section
“Preparing Your Server for Upgrade” on page 159
.
Caution
Turn off the power. Failure to do so causes the server to mal-
function or fail.
2.
Pull the cable arm toward the rear of the server and confirm the slot for
installing an optional power supply unit.
3.
Hold and pull the lever of the blank cover and remove the blank cover.
Figure 109: Removing the Blank Cover
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