3.  Remove  the  power  supply  or  power  supplies  from  the  server. 
4.  Raise  the  power-supply  cage  out  of  the  way: 
a.  Press  in  on  the  power-supply  latch  bracket,  which  is  on  the  left  side  of  the 
server  when  you  are  facing  the  rear  of  the  server. 
b.  Lift  the  end  of  the  power-supply  cage  and  rotate  the  cage  up  until  it  stops. 
The  tab  on  the  rear  power-supply  latch  bracket  clicks  into  place  when  the 
cage  is  completely  out  of  the  way. 
c.  Let  the  power-supply  cage  rest  on  the  rear  power-supply  latch  bracket.
 Attention:  To  avoid  breaking  the  DIMM  retaining  clips  or  damaging  the  DIMM 
connectors,  open  and  close  the  clips  gently. 
5.  Open  the  retaining  clip  on  each  end  of  the  DIMM  connector. 
6.  Touch  the  static-protective  package  containing  the  DIMM  to  any  unpainted  metal 
surface  on  the  outside  of  the  server.  Then,  remove  the  DIMM  from  the  package. 
 
 
7.  Turn  the  DIMM  so  that  the  DIMM  keys  align  correctly  with  the  connector. 
8.  Insert  the  DIMM  into  the  connector  by  aligning  the  edges  of  the  DIMM  with  the 
slots  at  the  ends  of  the  DIMM  connector.  Firmly  press  the  DIMM  straight  down 
into  the  connector  by  applying  pressure  on  both  ends  of  the  DIMM 
simultaneously.  The  retaining  clips  snap  into  the  locked  position  when  the  DIMM 
is  firmly  seated  in  the  connector.  If  there  is  a  gap  between  the  DIMM  and  the 
retaining  clips,  the  DIMM  has  not  been  correctly  inserted;  open  the  retaining 
clips,  remove  the  DIMM,  and  then  reinsert  it.
If
  you  have  other  optional  devices  to  install  or  remove,  do  so  now.  Otherwise,  go  to 
āCompleting  the  installationā  on  page  46. 
Installing  a  microprocessor 
The  following  notes  describe  the  type  of  microprocessor  that  the  server  supports 
and  other  information  that  you  must  consider  when  you  install  a  microprocessor: 
v  For  a  list  of  supported  optional  devices  for  the  server,  go  to  http://www.ibm.com/
us/compat/. 
v  The  server  supports  Intel  Xeon  dual-core  or  quad-core  1.6  GHz  or  higher 
microprocessors  in  each  socket.  If  you  are  installing  two  microprocessors,  they 
must  be  the  same  cache  size  and  type,  and  the  same  clock  speed. 
v  Some  models  support  dual-core  processors  and  quad-core  processors.  Do  not 
use  dual-core  processors  and  quad-core  processors  in  the  same  system.  Install 
all  dual-core  or  all  quad-core  processors  in  the  server. 
v  To   ensure  that  the  server  operates  correctly,  use  microprocessors  that  have  the 
same  cache  and  type,  and  the  same  clock  speed.  The  microprocessor  internal 
 
Chapter  2.  Installing  optional  devices  39