Socket 423
Socket 423 is a 423-pin CPU socket used by Intel's first generation of Pentium 4 processors based on the Willamette core.
 | |
| Type | PGA-ZIF |
|---|---|
| Chip form factors | Organic Land Grid Array (OLGA) on Interposer (OOI) (INT2 and INT3) |
| Contacts | 423 |
| FSB protocol | AGTL+ |
| FSB frequency | 400 MT/s |
| Voltage range | 1.0–1.85 V |
| Processor dimensions | 2.1 × 2.1 inches[1] |
| Processors | Intel Pentium 4 (1.3–2.0 GHz) |
| Predecessor | Socket 370 |
| Successor | Socket 478 |
This article is part of the CPU socket series | |
This socket was short-lived, as it became apparent that its electrical design proved inadequate for raising clock speed beyond 2.0 GHz. Intel produced chips using this socket for less than a year, from November 2000 to August 2001.
It was replaced by Socket 478 in 2001, which being microPGA was cheaper to manufacture.[2]
Technical specifications
This socket was designed to house any processor in the Socket 423 package.
The processors used with this socket have a locked multiplier, meaning that they are not overclockable unless the front side bus frequency is increased. However, raising the FSB frequency could push other buses out of spec, thus causing system instability.
The "PowerLeap PL-P4/N" is a device developed in the form of a socket adapter allowing the use of Socket 478 processors in Socket 423.