Toshiba Magnia 550d - Manual (Page 76)

Connecting Hardware Devices
CPU module
59
(In this case two 1 GHz CPUs are installed)
NOTE: When an additional CPU module is installed, the
system occasionally requires the operating system to be
reinstalled so that the additional CPU module is recognised
by the operating system.
CPU modules with different clock speeds cannot be used
together. Before purchasing an additional CPU module,
ensure that it is the same speed as the existing CPU module.
Replacing the CPU module
WARNING: Do not open or disassemble any part other than
those described in this manual, otherwise you may be
vulnerable to an electric shock.
CAUTION: Never install or remove a CPU module after
justturning off the server. To avoid burn injuries, wait for the
heat around the CPU module to dissipate.
Pentium III x2 - 1GHz