The  server  supports  hot-plug,  hot-add,  and  hot-swap  devices  and  is  designed  to 
operate  safely  while  it  is  turned  on  and  the  cover  is  removed.  Follow  these 
guidelines  when  you  work  inside  a  server  that  is  turned  on: 
v  Avoid  wearing  loose-fitting  clothing  on  your  forearms.  Button  long-sleeved  shirts 
before  working  inside  the  server;  do  not  wear  cuff  links  while  you  are  working 
inside  the  server. 
v  Do  not  allow  your  necktie  or  scarf  to  hang  inside  the  server. 
v  Remove  jewelry,  such  as  bracelets,  necklaces,  rings,  and  loose-fitting  wrist 
watches. 
v  Remove  items  from  your  shirt  pocket,  such  as  pens  and  pencils,  that  could  fall 
into  the  server  as  you  lean  over  it. 
v  Avoid  dropping  any  metallic  objects,  such  as  paper  clips,  hairpins,  and  screws, 
into  the  server.
Handling  static-sensitive  devices 
Attention:  Static  electricity  can  damage  the  server  and  other  electronic  devices. 
To  avoid  damage,  keep  static-sensitive  devices  in  their  static-protective  packages 
until  you  are  ready  to  install  them. 
To  reduce  the  possibility  of  damage  from  electrostatic  discharge,  observe  the 
following  precautions: 
v  Limit  your  movement.  Movement  can  cause  static  electricity  to  build  up  around 
you. 
v  The  use  of  a  grounding  system  is  recommended.  For  example,  wear  an 
electrostatic-discharge  wrist  strap,  if  one  is  available.  Always  use  an 
electrostatic-discharge  wrist  strap  or  other  grounding  system  when  working  inside 
the  server  with  the  power  on 
v  Handle  the  device  carefully,  holding  it  by  its  edges  or  its  frame. 
v  Do  not  touch  solder  joints,  pins,  or  exposed  circuitry. 
v  Do  not  leave  the  device  where  others  can  handle  and  damage  it. 
v  While  the  device  is  still  in  its  static-protective  package,  touch  it  to  an  unpainted 
metal  surface  on  the  outside  of  the  server  for  at  least  2  seconds.  This  drains 
static  electricity  from  the  package  and  from  your  body. 
v  Remove  the  device  from  its  package  and  install  it  directly  into  the  server  without 
setting  down  the  device.  If  it  is  necessary  to  set  down  the  device,  put  it  back  into 
its  static-protective  package.  Do  not  place  the  device  on  the  server  cover  or  on  a 
metal  surface. 
v  Take  additional  care  when  handling  devices  during  cold  weather.  Heating  reduces 
indoor  humidity  and  increases  static  electricity.
Removing  the  cover 
Important:  Before  you  install  optional  hardware,  make  sure  that  the  server  is 
working  correctly.  Start  the  server,  and  make  sure  that  the  operating  system  starts, 
if  an  operating  system  is  installed,  or  that  a  19990305  error  code  is  displayed, 
indicating  that  an  operating  system  was  not  found  but  the  server  is  otherwise 
working  correctly.  If  the  server  is  not  working  correctly,  see  the  Problem 
Determination  and  Service  Guide  for  diagnostic  information. 
To  remove  the  cover,  complete  the  following  steps: 
1.  Read  the  safety  information  that  begins  on  page  v  and  āInstallation  guidelinesā 
on  page  9. 
 
Chapter  2.  Installing  optional  devices  11