Removing and replacing a processor and heat sink module
The server processor subsystem supports one or two Dual-Core or Quad-Core Itanium processors.
When two processors are installed, the speeds must be identical.
WARNING! To reduce the risk of personal injury from hot surfaces, allow the drives and the
internal system components to cool before touching them.
CAUTION: To prevent possible server malfunction, do not mix processors of different speeds or
cache sizes.
CAUTION: Removing a processor will cause the DIMM loading rules to change. See “Memory
configurations” (page 47) and use the loading rules for two processors. If you do not perform these
procedures, then any memory associated with the removed processor will not be seen by the
system.
CAUTION: To prevent thermal instability and damage to the server, do not separate the processor
module from the heat sink.
1. Power off the server and remove it from the rack (“Powering off the server” (page 94) and
“Removing the server from the rack” (page 95)).
2. Remove the access panel (“Removing the access panel” (page 43)).
3. Open the processor cage.
4. Disconnect the power cord (see 1 below)
5. Rotate the processor locking handle up and back until it reaches a hard stop (see 2 below)
WARNING! The heat sink locking lever can constitute a pinch hazard, keep your hands on
top of the lever during installation to avoid personal injury.
6. Pull both plastic tabs out (see 3 below).
110 Removal and replacement procedures