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  parts  listing  in  the  Problem  Determination  and  Service  Guide  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  ā(Trained  service  technician  only),ā  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.
 Attention:  In  a  dc  power  environment,  only  trained  service  personnel 
other  than  IBM  service  technicians  are  authorized  to  connect  or  disconnect 
power  to  the  dc  power  supply.  See  the  documentation  that  comes  with  each 
dc  power  supply. 
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. 
 
Attention:  In  a  dc  power  environment,  only  trained  service  personnel  other 
than  IBM  service  technicians  are  authorized  to  connect  or  disconnect  power  to 
the  dc  power  supply.  See  the  documentation  that  comes  with  each  dc  power 
supply. 
2.  If  the  device  comes  with  test  instructions,  use  those  instructions  to  test  the 
device. 
3.  Reseat  the  failing  device. 
4.  Follow  the  instructions  for  device  maintenance,  such  as  keeping  the  heads 
clean,  and  troubleshooting  in  the  documentation  that  comes  with  the  device. 
5.  Replace  the  failing  device.
 
Power  problems 
Attention:  In  a  dc  power  environment,  only  trained  service  personnel  other  than 
IBM  service  technicians  are  authorized  to  connect  or  disconnect  power  to  the  dc 
power  supply.  See  the  documentation  that  comes  with  each  dc  power  supply.
 
70  IBM  System  x3650  Type  7979:  Installation  Guide