Socket 423

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 (1.3GHz to 2.0GHz)
This article is part of the CPU socket series

Socket 423 is a 423 pin CPU socket used for the first generation of Pentium 4 processors, based on the Willamette core.

Technical specifications [link]

This socket houses any processor designed in the Socket 423 package.

The 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

This processor also has a locked multiplier which means that it is not overclockable.

The "PowerLeap PL-P4/N" is a device developed in the form of a socket adapter allowing the use of socket 478 processors on the socket 423.

Referring to PGA423 Socket or Pin Grid Array.

References [link]

1. ^ "Intel Pentium 4 Datasheet". https://www.intel.com/design/pentium4/datashts/249198.htm. 

External links [link]

• Socket 423 to 478 adaptor review
• Comparison of Socket 423, Socket 478 and Socket A fan mounting hole positions