Socket 478
| Socket 478 | |
|---|---|
|
|
| Specifications | |
| introduction | 2001 |
| design type | PGA - ZIF |
| contacts | 478 |
| Bus protocol | AGTL + ( see Gunning Transceiver Logic ) |
| Bus cycle | 100 MHz ( quad-pumped ), FSB400 133 MHz ( quad-pumped ), FSB533 200 MHz ( quad-pumped ), FSB800 |
| Processors |
Intel Pentium 4 Intel Celeron / Celeron D Intel Pentium 4 Extreme Edition |
The socket 478 is a processor socket for Pentium 4 and Mobile Pentium 4 processors and the Pentium 4-based Celeron and Celeron D processors from Intel .
Socket 478 replaced the short-lived Socket 423 of the first Pentium 4 series and was replaced in 2004 by Socket 775 , Intel's first socket in land grid array technology. Socket P , referred to as PGA478 in Intel data sheets , has only optical, but no electrical commonality with Socket 478.
With the Socket 478, the processor cooler is not fixed by the socket itself, but by a so-called retention module on the motherboard . For this purpose, main boards have holes that span a rectangle of 60 × 76 mm² in which the retention module can snap into place. This measure became necessary because the processors were cooled with ever larger heat sinks, which, due to their greater mass, gradually no longer got a secure hold over the plastic lugs of the base.
