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     IBM-AUSTRIA - PC-HW-Support    30 Aug 1999 | 
 
Hot-Swap Power Supply Removal
Hot-Swap Power Supply Removal
The server comes with one power supply. You can add a
second power supply to provide redundant power. Each
power supply has two status indicators, see
'Power Supplies' for information about the status
indicators.
 
You cannot hot swap a power supply if the server
has only one power supply installed.
Refer to the illustration in 'Hot-Swap Power Supply Installation'
while you perform the steps in this procedure.
To remove a hot-swap power supply:
 
Never remove the cover on a power supply or any
part (power backplane and AC box) that has the
following label attached.
 
Hazardous voltage, current, and energy levels are
present inside the power supplies, power backplane,
and AC box. There are no serviceable parts inside the
power supplies, power backplane, or AC box.
   -  If the server has only one power supply installed,
 turn off the server and peripheral devices (see
'Preparing to Install Options'),
 otherwise, go to the next step.
 
 Before removing a functional power supply, set
 the Power switch on the power supply to the Off
 position.
   
 -  Set the Power switch on the power supply that you
 are removing to the Off position.
   
 -  Remove the power supply -4-:
   -  Remove the shipping screws -9- from the power
 supply, if they have not already been removed.
Note:
 You do not need to replace the shipping
 screws.
   
 -  Remove the power-cord strain-relief bracket
 -10-, if one is installed.
   
 -  Grasp the handle -5- on the power supply and
 pull the handle toward the center of the server,
 then, slide the power supply out of the chassis.
   
 -  Note:
 During normal operation, each power-supply
 bay should have either a power supply or
 filler panel installed for proper cooling.
 
   
 -  If you are not installing a replacement power supply:
   -  Disconnect the power cord for the power supply
 that you replaced.
   
 -  Install a power-supply filler panel, then go to step
 
 If you are replacing the power supply:
   -  Place the handle -5- on the power supply in the
 open position, and slide the power supply into
 the chassis.
   
 -  Gently close the handle -5- on the power supply
 to seat the power supply in the bay.
   
 -  Make sure the Power switch -6-on the power
 supply is in the On position.
   
 -  Verify that the AC Power light -7- and DC Power
 light -8- are lit, indicating that the power supply
 is operating correctly.
 
 When the power-cord strain-relief bracket
 option is installed on the power cord, the
 server must be plugged to a power source
 that is easily accessible.
   
 -  Install a power-cord strain-relief bracket -10-, if
 desired.
 
   
 -  If you have other options to install or remove, do so
 now, otherwise, go to Completing the Installation.
 
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