ThinkPad  T40/T40p,  T41/T41p, 
T42/T42p  Series 
Product  overview  .  .  .  .  .  .  .  .  .  .  .  .45 
Specifications  .  .  .  .  .  .  .  .  .  .  .  .45 
Status  indicators  .  .  .  .  .  .  .  .  .  .  .50 
FRU  tests  .  .  .  .  .  .  .  .  .  .  .  .  .53 
Fn  key  combinations  .  .  .  .  .  .  .  .  .  .54 
Symptom-to-FRU  index  .  .  .  .  .  .  .  .  .  .58 
Numeric  error  codes  .  .  .  .  .  .  .  .  .  .58 
Error  messages  .  .  .  .  .  .  .  .  .  .  .62 
Beep  symptoms  .  .  .  .  .  .  .  .  .  .  .63 
No-beep  symptoms  .  .  .  .  .  .  .  .  .  .63 
LCD-related  symptoms  .  .  .  .  .  .  .  .  .64 
Intermittent  problems  .  .  .  .  .  .  .  .  .  .65 
Undetermined  problems  .  .  .  .  .  .  .  .  .65 
FRU  replacement  notices  .  .  .  .  .  .  .  .  .66 
Screw  notices  .  .  .  .  .  .  .  .  .  .  .  .66 
Retaining  serial  numbers .  .  .  .  .  .  .  .  .67 
Restoring  the  serial  number  of  the  system  unit  67 
Retaining  the  UUID  .  .  .  .  .  .  .  .  .68 
Reading  or  writing  the  ECA  information  .  .  .68 
Removing  and  replacing  a  FRU .  .  .  .  .  .  .  .70 
1010  Battery  pack  for  14.1-in.  LCD  models  .  .  .71 
1020  Battery  pack  for  15.0-in.  LCD  models  .  .  .73 
1030  Ultrabay  Slim  device  .  .  .  .  .  .  .  .74 
1040  Hard  disk  drive  .  .  .  .  .  .  .  .  .  .75 
1050  DIMM  (optional)  .  .  .  .  .  .  .  .  .77 
1060  Keyboard  .  .  .  .  .  .  .  .  .  .  .79 
1070  DIMM  (standard)  .  .  .  .  .  .  .  .  .83 
1080  Modem  daughter  card  (MDC/MDC-2)  .  .  .84 
1090  Bluetooth/Modem  daughter  card 
(BMDC/BMDC-2)  .  .  .  .  .  .  .  .  .  .86 
1100  Palm  rest  or  Palm  rest  with  fingerprint  sensor 
(for  14.1-in.  LCD  models)  .  .  .  .  .  .  .  .88 
1110  Keyboard  bezel  or  Keyboard  bezel  with 
fingerprint  sensor  (for  15.0-in.  LCD  models)  .  .91 
1120  Mini  PCI  adapter  .  .  .  .  .  .  .  .  .97 
1130  Fan  assembly  .  .  .  .  .  .  .  .  .  . 101 
1140  Backup  battery  for  14.1-in.  LCD  models  106 
1150  Backup  battery  for  15.0-in.  LCD  models  108 
1160  Speaker  assembly  .  .  .  .  .  .  .  .110 
1170  Keyboard  bezel  for  14.1-in.  LCD  models  112 
1180  PC  Card  slot  assembly  for  14.1-in.  LCD 
models  .  .  .  .  .  .  .  .  .  .  .  .  .114 
1190  PC  Card  slot  assembly  for  15.0-in.  LCD 
models  .  .  .  .  .  .  .  .  .  .  .  .  .116 
1200  LCD  assembly  for  14.1-in.  LCD  models  118 
1210  LCD  assembly  for  15.0-in.  LCD  models  123 
1220  CPU  .  .  .  .  .  .  .  .  .  .  .  . 128 
1230  Ultrabay  Slim  guide  rail  assembly  for  14.1-in. 
LCD  models  .  .  .  .  .  .  .  .  .  .  . 129 
 
©  Lenovo  2005.  Portions  ©  IBM  Corp.  2005.  43