Figure 70. Installing a power supply unit
Next steps
1 If you have unlatched the cable management arm, relatch it. For information about the cable management arm, see the system’s rack
documentation at Dell.com/poweredgemanuals.
2 Plug the cable into a power outlet.
CAUTION
: When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
NOTE: When installing, hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the
PSU and determine its status. The PSU redundancy may not occur until discovery is complete. Wait until the new PSU
is discovered and enabled before you remove the other PSU. The PSU status indicator turns green to signify that the
PSU is functioning properly.
3 Follow the procedure listed in After working inside your system.
Power interposer board
The power interposer board (PIB) is a board that connects the hot swappable power supply units (PSUs) to the system board. The PIB is
only supported in systems with redundant PSUs.
Removing power interposer board
Prerequisites
1 Follow the safety guidelines listed in Safety instructions.
2 Follow the procedure listed in Before working inside your system.
3 Remove the cooling fans.
4 Remove the MiniPERC riser.
5 Disconnect the cables connected to the Power Interposer board.
6 Disconnect the cables connected from the power interposer board to the system board and hard-drive backplane.
7 Remove the PSU.
CAUTION
: To prevent damage to the power interposer board, you must remove the power supply module (s) or power supply
blank from the system before removing the power interposer board or power distribution board.
Installing and removing system components 109
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