Chapter  4.  Replace  power  supply  in  iSeries  825 
To  perform  this  procedure  with  the  system  powered  on,  you  must  have  two  power 
supplies  and  two  working  air  moving  devices.  If  you  need  to  replace  an  air 
moving  device,  go  to  Chapter  6,  “Replace  the  air  moving  device,”  on  page  13. 
To  replace  the  power  supply,  perform  these  tasks: 
Note:  The  figures  in  these  instructions  may  not  look  exactly  like  the  server  that 
you  have.  However,  the  steps  to  perform  the  task  are  the  same. 
__  1.  Perform  prerequisite  tasks  as  described  in  Chapter  2,  “Before  you  begin,” 
on  page  3. 
__  2.  If  you  need  to  power  down  the  system,  follow  the  steps  in  “Power  down 
the  system”  on  page  23. 
__  3.  Remove  the  back  cover.  Refer  to  “825  back  cover”  on  page  20. 
__  4.  Locate  the  power  supply  to  be  replaced  at  the  back  of  the  unit  (P01  or 
P02).
 
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