v  Online-spare  memory 
Online-spare  memory  disables  a  failed  rank  pair  of  DIMMs  from  the  system 
configuration  and  activates  an  online-spare  rank  pair  of  DIMMs  to  replace  the 
failed  rank  pair  of  DIMMs.  For  an  online-spare  pair  of  DIMMs  to  be  activated,  you 
must  enable  this  feature  and  have  installed  an  additional  pair  of  DIMMs  of  the 
same  speed,  type,  size  (or  larger),  and  technology  as  the  failed  pair  of  DIMMs. 
v  PCI-X  adapter  capabilities 
The  server  has  two  slots  for  PCI-X  64-bit  adapters. 
v  PCI  Express  x4  adapter  capabilities 
The  server  has  one  slot  for  PCI  Express  x4  adapters.  These  slots  accept  x8 
adapters,  but  the  adapters  will  operate  as  x4  adapters. 
v  PCI  Express  x8  adapter  capabilities 
The  server  has  two  slots  for  PCI  Express  x8  adapters. 
v  Redundant  cooling  and  power  capabilities 
The  server  supports  up  to  two  835-watt  hot-swap  power  supplies.  If  the  server 
comes  with  only  one  power  supply,  you  can  install  an  additional  power  supply 
with  three  redundant  hot-swap  cooling  fans  to  add  redundant  power  and  cooling 
capabilities.  If  the  maximum  load  on  the  server  is  less  than  835  watts  and  a 
problem  occurs  with  one  of  the  power  supplies,  the  other  power  supply  can  meet 
the  power  requirements.  The  redundant  cooling  of  the  fans  enables  continued 
operation  if  one  of  the  fans  fails. 
v  ServeRAID
™ 
support 
The  server  supports  ServeRAID  adapters  to  create  redundant  array  of 
independent  disks  (RAID)  configurations. 
v  Symmetric  multiprocessing  (SMP) 
The  server  supports  up  to  two  Intel  Xeon  dual-core  microprocessors.  If  the  server 
comes  with  only  one  microprocessor,  you  can  install  an  additional  microprocessor 
to  enhance  performance  and  provide  SMP  capability. 
v  Systems-management  capabilities 
The  server  comes  with  a  Remote  Supervisor  Adapter  II  SlimLine,  which  provides 
service-processor  functions  in  addition  to  those  that  the  baseboard  management 
controller  provides.  When  this  adapter  is  used  with  the  systems-management 
software  that  comes  with  the  server,  you  can  manage  the  functions  of  the  server 
locally  and  remotely.  The  Remote  Supervisor  Adapter  II  SlimLine  also  provides 
system  monitoring,  event  recording,  and  dial-out  alert  capability.
Reliability,  availability,  and  serviceability 
Three  important  server  design  features  are  reliability,  availability,  and  serviceability 
(RAS).  The  RAS  features  help  to  ensure  the  integrity  of  the  data  that  is  stored  in 
the  server,  the  availability  of  the  server  when  you  need  it,  and  the  ease  with  which 
you  can  diagnose  and  correct  problems. 
The  server  has  the  following  RAS  features: 
v  3-year  parts,  3-year  labor  limited  warranty 
v  Advanced  Configuration  and  Power  Interface  (ACPI) 
v  Advanced  Desktop  Management  Interface  (DMI)  features 
v  Automatic  error  retry  or  recovery 
v  Automatic  memory  downsizing  on  error  detection 
v  Automatic  restart  on  nonmaskable  interrupt  (NMI) 
 
Chapter  1.  The  System  x3500  server  5