Optional-device  problems 
 
v  Follow  the  suggested  actions  in  the  order  in  which  they  are  listed  in  the  Action  column  until  the  problem 
is  solved. 
v  See  the  Problem  Determination  and  Service  Guide  on  the  IBM  System  x  Documentation  CD  to  determine  which 
components  are  customer  replaceable  units  (CRU)  and  which  components  are  field  replaceable  units 
(FRU). 
v  If  an  action  step  is  preceded  by  “(Trained  service  technician  only),”  that  step  must  be  performed  only  by  a 
trained  service  technician. 
Symptom  Action 
An  IBM  optional  device  that  was 
just  installed  does  not  work. 
1.  Make  sure  that: 
v  The  device  is  designed  for  the  server  (see  http://www.ibm.com/servers/
eserver/serverproven/compat/us/).
 
v  You  followed  the  installation  instructions  that  came  with  the  device  and  the 
device  is  installed  correctly. 
v  You  have  not  loosened  any  other  installed  devices  or  cables. 
v  You  updated  the  configuration  information  in  the  Configuration/Setup  Utility 
program.  Whenever  memory  or  any  other  device  is  changed,  you  must 
update  the  configuration.
2.
  Reseat  the  device  that  you  just  installed. 
3.  Replace  the  device  that  you  just  installed. 
An  IBM  optional  device  that 
used  to  work  does  not  work 
now. 
1.  Make  sure  that  all  of  the  hardware  and  cable  connections  for  the  device  are 
secure. 
2.  If  the  device  comes  with  test  instructions,  use  those  instructions  to  test  the 
device. 
3.  If  the  failing  device  is  a  SCSI  device,  make  sure  that: 
v  The  cables  for  all  external  SCSI  devices  are  connected  correctly. 
v  The  last  device  in  each  SCSI  chain,  or  the  end  of  the  SCSI  cable,  is 
terminated  correctly. 
v  Any  external  SCSI  device  is  turned  on.  You  must  turn  on  an  external  SCSI 
device  before  turning  on  the  server.
4.
  Reseat  the  failing  device. 
5.  Replace  the  failing  device.
 
 
Chapter  5.  Solving  problems  85