Datasheet

22
Chapter 1
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Personal Computer System Components
The processor slot is another method of connecting a processor to a motherboard, but
one into which a processor (such as the AMD Athlon or the Intel Pentium II or Pentium III)
on a special expansion card is inserted (the slot shown in Figure 1.14). Newer, more com-
plex processors, such as the Intel Itanium, use a similar packaging, known as a Pin Array
Cartridge (PAC), which uses a complex mechanism for inserting the large rectangular PAC
CPU carrier. The connector that receives a PAC works on the Very Low Insertion Force
(VLIF) principle. To see which socket type is used for which processors, examine Table 1.1.
FIGURE 1.14 A Slot 1 connection slot
TABLE 1.1 Socket/Slot Types and the Processors They Support
Socket/Slot Processors
Slot 1 Pentium II, Pentium III, Celeron, and all SECC and SECC2
Slot 2 Pentium II Xeon, Pentium III Xeon (server)—replaced by
Socket 370
Slot A Early AMD Athlon, physically the same as Slot 1, but not
electrically—replaced by Socket A
Sockets 1, 2, 3, 6 486 and Pentium OverDrive
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