Power Supply; Figure 4-11. Power Supply Removal - Dell PowerEdge 4200 Service Manual

P
ower Supply
The computer may have one or two power supplies (second power supply slot
contains a cooling fan if a power supply is not present).

Figure 4-11. Power Supply Removal

WARNING: In a redundant system, you can remove and replace a power
supply without turning off the system. When doing so, be careful not to
touch any of the connectors on the power supply paralleling board.
CAUTION: To maintain proper airflow and prevent the system from
overheating, each power supply bay must have either a power supply or
cooling fan assembly installed.
1. Turn the locking switch on the power supply to the Off position
(marked by a partial circle with a line through the top).
2. Unhook the cable strain relief to free the AC power cable.
3. Disconnect the AC power cable from the power outlet; then disconnect
the other end of the cable from the power supply.
4. Turn the locking knob counterclockwise to release the power supply.
5. Slide the power supply out of the chassis.
second power
supply or fan

power supply

locking knob
AC power cable
connector
locking switch
Removing and Replacing Parts 4-11