Introduction 
Important  service  information 
 
Important 
BIOS  and  device  driver  fixes  are 
customer-installable.  The  BIOS  and  device  drivers 
are  posted  on  the  customer  support  site 
http://www.lenovo.com/think/  support 
Advise  customers  to  contact  the  Customer  Support 
Center  at  800-426-7378  if  they  need  assistance  in 
obtaining  or  installing  any  diskette  fixes. 
Customers  in  Canada  should  call  the  Customer 
Support  Center  at  800-565-3344  for  assistance  or 
download  information. 
Strategy  for  replacing  FRUs 
 
 
Before  replacing  parts 
Make  sure  that  all  diskette  fixes  are  installed  before 
replacing  any  FRUs  listed  in  this  manual.
 Use  the  following  strategy  to  prevent  unnecessary  expense 
for  replacing  and  servicing  FRUs: 
v  If  you  are  instructed  to  replace  a  FRU  but  the 
replacement  does  not  correct  the  problem,  reinstall 
the  original  FRU  before  you  continue. 
v  Some  computers  have  both  a  processor  board  and  a 
system  board.  If  you  are  instructed  to  replace  either  the 
processor  board  or  the  system  board,  and  replacing  one 
of  them  does  not  correct  the  problem,  reinstall  that 
board,  and  then  replace  the  other  one. 
v  If  an  adapter  or  a  device  consists  of  more  than  one 
FRU,  any  of  the  FRUs  may  be  the  cause  of  the  error. 
Before  replacing  the  adapter  or  device,  remove  the 
FRUs,  one  by  one,  to  see  if  the  symptoms  change. 
Replace  only  the  FRU  that  changed  the  symptoms. 
Attention:  The  setup  configuration  on  the  computer  you 
are  servicing  may  have  been  customized.  Running 
Automatic  Configuration  may  alter  the  settings.  Note  the 
current  configuration  settings  (using  the  View  Configuration 
option);  then,  when  service  has  been  completed,  verify  that 
those  settings  remain  in  effect.
 
©  Lenovo  2005.  Portions  ©  IBM  Corp.  2005.  3