1.  Turn  on  the  computer;  then,  while  the  “To  interrupt 
normal  startup,  press  the  blue  Access  IBM  button” 
message  is  displayed  at  the  lower-left  of  the  screen, 
press  the  Access  IBM  button. 
 
2.  For  models  supporting  the  Passphrase  function,  press 
F1  while  HDP  icon  is  appearing  on  the  screen;  then 
enter  the  master  HDP.  For  the  other  models,  enter  the 
master  HDP.
Note:
  To  check  whether  the  ThinkPad  computer 
supports  the  Passphrase  function,  enter  IBM 
BIOS  Setup  Utility  and  go  to  Security  -> 
Password.  If  using  Passphrase  item  is 
displayed  in  the  menu,  this  function  is  available 
on  the  ThinkPad  computer. 
 
3.  Double—click  Start  setup  utility.  Enter  SVP. 
 
4.  Select  Security,  using  the  cursor  keys  to  move  down 
the  menu. 
 
5.  Select  Password. 
 
6.  Select  hard  disk  x  password,  where  x  is  the  letter  of 
the  hard  disk  drive.  A  pop-up  window  opens. 
 
7.  Select  Master  HDP. 
 
8.  Enter  the  master  HDP;  then  leave  the  New  Password 
field  blank  and  press  Enter  twice. 
 
9.  Press  F10. 
10.  Select  Yes  in  the  Setup  Configuration  window. 
Both  user  HDP  and  master  HDP  will  have  been 
removed.
Power  management 
To  reduce  power  consumption,  the  computer  has  three 
power  management  modes:  screen  blank,  standby,  and 
hibernation. 
 
 
Notes 
v  Screen  blank  mode  is  called  standby  mode  in 
Windows  95  and  Windows  NT. 
v  Standby  mode  is  called  suspend  mode  in 
Windows  95  and  Windows  NT.
Screen  blank  mode 
Screen  blank  mode  has  three  variants,  as  follows: 
1.  If  you  press  Fn+F3,  or  the  time  set  on  the  “LCD  off 
timer”  in  IBM  BIOS  Setup  Utility  expires, 
v  The  LCD  backlight  turns  off. 
v  The  hard  disk  drive  motor  stops. 
v  The  speaker  is  muted.
Related  service  information 
General  descriptions  39