Socket 423 is a 423-pin
CPU socket
In computer hardware, a CPU socket or CPU slot contains one or more mechanical components providing mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows for placing and replacing the cen ...
used by the first generation of
Pentium 4
Pentium 4 is a series of single-core CPUs for desktops, laptops and entry-level servers manufactured by Intel. The processors were shipped from November 20, 2000 until August 8, 2008. The production of Netburst processors was active from 200 ...
processors
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry that executes instructions comprising a computer program. The CPU performs basic arithmetic, logic, controlling, ...
, based on the Willamette core.
It was replaced by
Socket 478
Socket 478, also known as mPGA478 or mPGA478B, is a 478-contact CPU socket used for Intel's Pentium 4 and Celeron series CPUs.
Socket 478 was launched in August 2001 in advance of the Northwood core to compete with AMD's 462-pin Socket A and th ...
in 2001.
Technical specifications
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
In computing, the clock rate or clock speed typically refers to the frequency at which the clock generator of a processor can generate pulses, which are used to synchronize the operations of its components, and is used as an indicator of the pro ...
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
Socket 478, also known as mPGA478 or mPGA478B, is a 478-contact CPU socket used for Intel's Pentium 4 and Celeron series CPUs.
Socket 478 was launched in August 2001 in advance of the Northwood core to compete with AMD's 462-pin Socket A and th ...
, which being microPGA was cheaper to make.
The processors used with this socket also have a locked multiplier which means 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 and thus cause 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.
References
External links
''Socket 423 to 478 adaptor review''
{{intelsock
Intel CPU sockets