The Pentium II uses a Single Edge connector (SEC) to attach to the motherboard instead of the standard PGA package that was used with the earlier processor types. The processor is on a card that can be easily replaced.
The original Klamath
Pentium II ran at 233 and 266
MHz; thereby producing high quantity
of heat. It was designed with
a 66 MHz front side bus that was
inadequate for the CPU's design
to show its full potential. A
300 MHz version was released during
1997. 
