USB  keyboard,  mouse,  or  pointing-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 
All  or  some  keys  on  the 
keyboard  do  not  work. 
1.  If  you  have  installed  a  USB  keyboard,  run  the  Configuration/Setup  Utility 
program  and  enable  keyboardless  operation  to  prevent  the  POST  error 
message  301  from  being  displayed  during  startup. 
2.  See  http://www.ibm.com/servers/eserver/serverproven/compat/us/  for  keyboard 
compatibility. 
3.  Make  sure  that: 
v  The  keyboard  cable  is  securely  connected. 
v  The  server  and  the  monitor  are  turned  on.
4.
  Move  the  keyboard  cable  to  a  different  USB  connector. 
5.  Replace  the  following  components  one  at  a  time,  in  the  order  shown,  restarting 
the  server  each  time: 
a.  Keyboard 
b.  (Only  if  the  problem  occurred  with  a  front  USB  connector)  Internal  USB 
cable 
c.  (Trained  service  technician  only)  System  board 
The  USB  mouse  or  USB 
pointing  device  does  not  work. 
1.  Make  sure  that: 
v  The  mouse  is  compatible  with  the  server.  See  http://www.ibm.com/servers/
eserver/serverproven/compat/us/.
 
v  The  mouse  or  pointing-device  USB  cable  is  securely  connected  to  the 
server,  and  the  device  drivers  are  installed  correctly. 
v  The  server  and  the  monitor  are  turned  on.
2.
  If  a  USB  hub  is  in  use,  disconnect  the  USB  device  from  the  hub  and  connect  it 
directly  to  the  server. 
3.  Move  the  mouse  or  pointing  device  cable  to  another  USB  connector. 
4.  Replace  the  following  components  one  at  a  time,  in  the  order  shown,  restarting 
the  server  each  time: 
a.  Mouse  or  pointing  device 
b.  (Only  if  the  problem  occurred  with  a  front  USB  connector)  Internal  USB 
cable 
c.  (Trained  service  technician  only)  System  board
 
 
Chapter  5.  Solving  problems  65