Hardware Reference
In-Depth Information
ThetwovariationsonthesecartridgesarecalledSECC(singleedgecontactcartridge)and
SECC2.
The SECC2 version was cheaper to make because it uses fewer overall parts. It also al-
lowed for a more direct heatsink attachment to the processor for better cooling. Intel
transitioned from SECC to SECC2 in the beginning of 1999; all later PII chips, and the
Slot 1 PIII chips that followed, use the improved SECC2 design.
Byusingseparatechipsmountedonacircuitboard,IntelcouldbuildthePentiumIImuch
less expensively than the multiple die within a package used in the Pentium Pro. Intel
could also use cache chips from other manufacturers and more easily vary the amount of
cache in future processors compared to the Pentium Pro design.
Intel offered Pentium II processors with the speeds listed in
Table 3.14
.
Table 3.14 Speeds for Pentium II Processors and Motherboards
