Slot 1
From Wikipedia, the free encyclopedia
| Slot 1 | ||
 |
||
| Specifications | ||
|---|---|---|
| Type | Slot | |
| Chip form factors |
|
|
| Contacts | 242 | |
| Bus Protocol | GTL+ | |
| FSB | 66, 100, and 133 MHz | |
| Voltage range | 1.65 to 2.80 V | |
| Processors |
|
|
|
This article is part of the CPU socket series |
||
Slot 1 refers to the physical and electrical specification for the connector used by some of Intel's microprocessors, including the Celeron, Pentium II and the Pentium III. Both single and dual processor configurations were implemented.
Slot 1 was a departure from the square Zero Insertion Force PGA/SPGA sockets used for the Pentium and earlier processors. Instead, the processor is mounted on a Single Edge Contact Cartridge (SECC), much like a PCI slot, but with a 242-lead edge-connector.
The Slot 1 specification allows for higher bus rates than Socket 7. Slot 1 motherboards use the GTL+ bus protocol.
Some Pentium-II 350MHz and 450MHz processors, and all slot-1 Pentium-III's, came in the improved SECC2 variety.
It should be noted that while SECC2 retention clips will hold a SECC package, SECC clips will not hold a SECC2 package. The Slot A standard used by AMD was mechanically identical but electrically incompatible.
