Socket 370, also known as PGA370, is a

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 centr ...

first used by

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

for

Pentium III The Pentium III (marketed as Intel Pentium III Processor, informally PIII or P3) brand refers to Intel's 32-bit x86 desktop and mobile CPUs based on the sixth-generation P6 (microarchitecture), P6 microarchitecture introduced on February 28, 1999 ...

and

Celeron Celeron is a series of IA-32 and x86-64 computer microprocessor, microprocessors targeted at low-cost Personal computer, personal computers, manufactured by Intel from 1998 until 2023. The first Celeron-branded CPU was introduced on April 15, ...

processors to first complement and later replace the older

Slot 1 Slot 1 refers to the physical and electrical specification for the connector used by some of Intel's microprocessors, including the Pentium Pro, Celeron, Pentium II and the Pentium III. Both single and dual processor configurations were impl ...

CPU interface on

personal computer A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC ...

s. The "370" refers to the number of pin holes in the socket for CPU pins. Socket 370 was replaced by

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. This socket was short-lived, as it became apparent that its electrical design proved inadequate for raising clock speeds be ...

in 2000.

Overview

Socket 370 started out as a budget-oriented platform for 66 MHz FSB PPGA Mendocino

CPUs in late 1998, as the move to on-die

L2 cache A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which ...

eliminated the need for a

PCB PCB may refer to: Science and technology * Polychlorinated biphenyl, an organic chlorine compound, now recognized as an environmental toxin and classified as a persistent organic pollutant * Printed circuit board, a board used in electronics * P ...

design as seen on Slot 1. Socket 370 then became Intel's main desktop socket from late 1999 to late 2000 for 100/133 MHz FSB FC-PGA Coppermine Pentium IIIs. In 2001, the FC-PGA2 Tualatin Pentium III processors brought changes to the infrastructure which required dedicated Tualatin-compatible motherboards; some manufacturers would indicate this with a blue (instead of white) socket. These late sockets were typically compatible with Coppermine processors, but not the older Mendocino Celerons. Some

motherboard A motherboard, also called a mainboard, a system board, a logic board, and informally a mobo (see #Nomenclature, "Nomenclature" section), is the main printed circuit board (PCB) in general-purpose computers and other expandable systems. It ho ...

s that used Socket 370 support

processors in dual CPU configurations (e. g.

ABIT BP6 The ABIT BP6 is an ATX motherboard released by Universal Abit, ABIT in 1999. It was the first motherboard to allow the use of two unmodified Intel Celeron#Mendocino, Celeron processors in dual symmetric multiprocessing (SMP) configuration. This ...

). Other motherboards allowed the use of a Socket 370 or a Slot 1 CPU, but not at the same time. The

VIA Via or VIA may refer to the following: Arts and entertainment * ''Via'' (Volumes album), 2011 * Via (Thalia Zedek album), 2013 * VIA (music), Soviet and Russian term for a music collective Businesses and organisations * Via Foundation, a Cz ...

Cyrix III Cyrix III is an x86-compatible Socket 370 CPU. VIA Technologies launched the processor in February 2000. VIA had purchased both Centaur Technology and Cyrix. Cyrix III was to be based upon a core from one of the two companies. History The Cyr ...

, later renamed the

VIA C3 The VIA C3 is a family of x86 central processing units for personal computers designed by Centaur Technology and sold by VIA Technologies. The different CPU cores are built following the design methodology of Centaur Technology. In addition to ...

, also used Socket 370. Slotkets are available that allows Socket 370 CPUs to be used on

based motherboards. These devices are equipped with their own voltage regulator modules, in order to supply the new CPU with a lower core voltage, which the motherboard would not otherwise allow.

Socket 370 Intel processors mechanical load limits

The weight of a Socket 370 CPU cooler should not exceed 180 grams (6.3 ounces). Heavier coolers may result in damage to the die when the system is improperly handled. Most Intel Socket 370 processors (Pentium III and Celeron) had mechanical maximum load limits which were designed not be exceeded during heat sink assembly, shipping conditions, or standard use. They came with a warning that load above those limits would crack the processor die and make it unusable. The limits are included in the table below.

Socket 370 Intel processors with integrated heat sink mechanical load limits

All Intel Socket 370 processors with integrated

heat sink A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is thermal management (electronics), ...

(Pentium III and Celeron 1.13–1.4 GHz) had mechanical maximum load limits which were designed not be exceeded during heat sink assembly, shipping conditions, or standard use. They came with a warning that load above those limits would crack the processor die and make it unusable. The limits are included in the table below.

References

External links

Socket 370 (PGA370)
{{Commonscat Intel CPU sockets

Overview

Socket 370 Intel processors mechanical load limits

Socket 370 Intel processors with integrated heat sink mechanical load limits

See also

References

External links