Datasheet

54 Datasheet
S.E.C.C. and S.E.C.C.2 Mechanical Specifications
5.0 S.E.C.C. and S.E.C.C.2 Mechanical Specifications
Pentium III processors use either S.E.C.C. or S.E.C.C.2 package technology. Both package types
contain the processor core, L2 cache, and other passive components. The cartridges connect to the
baseboard through an edge connector. Mechanical specifications for the processor are given in this
section. See Section 1.1.1 for a complete terminology listing.
5.1 S.E.C.C. Mechanical Specifications
S.E.C.C. package drawings and dimension details are provided in Figure 22 through Figure 31.
Figure 22 shows multiple views of the Pentium III processor in an S.E.C.C. package; Figure 23
through Figure 26 show the package dimensions; Figure 27 and Figure 28 show the extended
thermal plate dimensions; and Figure 29 and Figure 30 provide details of the processor substrate
edge finger contacts. Figure 31 and Table 29 contain processor marking information. See
Section 5.2 for S.E.C.C.2 mechanical specifications.
The processor edge connector defined in this document is referred to as the “SC242 connector.”
See the Slot 1 Connector Specification (Document Number 243397) for further details on the
SC242 connector.
Note: For Figure 22 through Figure 44, the following apply:
1. Unless otherwise specified, the following drawings are dimensioned in inches.
2. All dimensions provided with tolerances are guaranteed to be met for all normal production
product.
3. Figures and drawings labeled as “Reference Dimensions” are provided for informational
purposes only. Reference Dimensions are extracted from the mechanical design database and
are nominal dimensions with no tolerance information applied. Reference Dimensions are
NOT checked as part of the processor manufacturing. Unless noted as such, dimensions in
parentheses without tolerances are Reference Dimensions.
4. Drawings are not to scale.
Figure 22. S.E.C.C. Packaged Processor — Multiple Views
Left Right
Right
Side
LeftRight
Thermal Plate
Side View
Cover Side view
Top View
Left Latch Right Latch
Cover
Thermal
Plate