CPU socket

CPU socket: The Socket 370 processor socket, a ZIF type PGA socket

Socket A (also known as Socket 462)

A CPU socket or CPU slot is a mechanical component that provides mechanical and electrical connections between a microprocessor and a printed circuit board (PCB). This allows the CPU to be replaced without soldering.

Common sockets have retention clips that apply a constant force, which must be overcome when a device is inserted. For chips with a large number of pins, either zero-insertion force (ZIF) sockets or land grid array (LGA) sockets are used instead. These designs apply a compression force once either a handle (for ZIF type) or a surface plate (LGA type) is put into place. This provides superior mechanical retention while avoiding the risk of bending pins when inserting the chip into the socket.

CPU sockets are used in desktop and server computers. As they allow easy swapping of components, they are also used for prototyping new circuits.Laptops typically use surface mount CPUs, which need less space than a socketed part.

Contents

1 Function

2 List of sockets and slots

3 Slotkets

4 Notes and references

5 See also

6 External links

Function

A CPU socket is made of plastic, a metal lever or latch, and metal contacts for each of the pins or lands on the CPU. Many packages are keyed to ensure the proper insertion of the CPU. CPUs with a PGA package are inserted into the socket and the latch is closed.

List of sockets and slots

Socket
name Year of introduction Year of End Of Life CPU families Package Pin count Pin pitch Bus speed Notes

DIP 1970s Still available Intel 8086
Intel 8088 DIP 40 2.54mm 5/10 MHz

PLCC ? Still available Intel 80186
Intel 80286
Intel 80386 PLCC 68, 132 1.27mm 6–40 MHz

Socket 1 1989 ? Intel 80486 PGA 169 ? 16–50 MHz

Socket 2 ? ? Intel 80486 PGA 238 ? 16–50 MHz

Socket 3 1991 ? Intel 80486 PGA 237 ? 16–50 MHz

Socket 4 ? ? Intel Pentium PGA 273 ? 60–66 MHz

Socket 5 ? ? Intel Pentium
AMD K5
IDT WinChip C6
IDT WinChip 2 PGA 320 ? 50–66 MHz

Socket 6 ? ? Intel 80486 PGA 235 ? ?

Socket 7 1994 ? Intel Pentium
Intel Pentium MMX
AMD K6 PGA 321 ? 50–66 MHz

Super Socket 7 1998 ? AMD K6-2
AMD AMD K6-III
Rise mP6
Cyrix MII PGA 321 ? 66–100 MHz

Socket 8 1995 ? Intel Pentium Pro PGA 387 ? 60–66 MHz

Slot 1 1997 ? Intel Pentium II

Intel Pentium III Slot 242 ? 66–133 MHz Celeron (Covington, Mendocino)
Pentium II (Klamath)
Pentium III (Katmai)- all versions
Pentium III (coppermine)

Slot 2 1998 ? Intel Pentium II Xeon Slot 330 ? 100–133 MHz

Socket 463/
Socket NexGen ? ? NexGen Nx586 PGA 463 ? ?

Socket 499 ? ? Alpha 21164A Slot 587 ? ?

Slot A 1999 ? AMD Athlon Slot 242 ? 100 MHz

Slot B ? ? Alpha 21264 Slot 587 ? ?

Socket 370 1999 ? Intel Pentium III
Intel Celeron
VIA Cyrix III
VIA C3 PGA 370 1.27mm^[1] 66–133 MHz

Socket 462/
Socket A 2000 ? AMD Athlon
AMD Duron
AMD Athlon XP
AMD Athlon XP-M
AMD Athlon MP
AMD Sempron PGA 462 ? 100–200 MHz This is a double data rate bus having a 400 MT/s
(megatransfers/second) fsb in the later models

Socket 423 2000 ? Intel Pentium 4 PGA 423 1mm^[2] 400 MT/s (100 MHz) Willamette core only

Socket 478/
Socket N 2000 ? Intel Pentium 4
Intel Celeron
Intel Pentium 4 EE
Intel Pentium 4 M PGA 478 1.27mm^[3] 400–800 MT/s (100–200 MHz)

Socket 495 2000 ? Intel Celeron PGA 495 1.27mm^[4] ?

PAC418 2001 ? Intel Itanium PGA 418 ? 133 MHz

Socket 603 2001 ? Intel Xeon PGA 603 1.27mm^[5] 400–533 MT/s (100–133 MHz)

PAC611 2002 ? Intel Itanium 2
HP PA-8800, PA-8900 PGA 611 ? ?

Socket 604 2002 ? Intel Xeon PGA 604 1.27mm^[5] 400–1066 MT/s (100–266 MHz)

Socket 754 2003 ? AMD Athlon 64
AMD Sempron
AMD Turion 64 PGA 754 1.27mm^[6] 200–800 MHz

Socket 940 2003 ? AMD Opteron Athlon 64 FX PGA 940 1.27mm^[7] 200–1000 MHz

Socket 479 2003 ? Intel Pentium M
Intel Celeron M PGA 479^[8] ? 400–533 MT/s (100–133 MHz)

Socket 939 2004 11/2008 AMD Athlon 64
AMD Athlon 64 FX
AMD Athlon 64 X2
AMD Opteron PGA 939 1.27mm^[7] 200–1000 MHz Support of Athlon 64 FX to 1 GHz
Support of Opteron limited to 100-series only

LGA 775/
Socket T 2004 ? Intel Pentium 4
Intel Pentium D
Intel Celeron
Intel Celeron D
Intel Pentium XE
Intel Core 2 Duo
Intel Core 2 Quad
Intel Xeon LGA 775 1.09mm x 1.17mm^[9] 1600 MHz

Socket 563 ? ? AMD Athlon XP-M PGA 563 ? ?

Socket M 2006 ? Intel Core Solo
Intel Core Duo
Intel Dual-Core Xeon
Intel Core 2 Duo PGA 478 ? 533–667 MT/s (133–166 MHz) For notebook platform
Replaces Socket 479

LGA 771/
Socket J 2006 ? Intel Xeon LGA 771 1.09mm x 1.17mm^[10] 1600 MHz

Socket S1 2006 ? AMD Turion 64 X2 PGA 638 1.27mm^[11] 200–800 MHz

Socket AM2 2006 ? AMD Athlon 64
AMD Athlon 64 X2 PGA 940 1.27mm^[7] 200–1000 MHz Replaces Socket 754 and Socket 939

Socket F 2006 ? AMD Athlon 64 FX
AMD Opteron LGA 1207 1.1mm^[12] ? Replaces Socket 940

Socket AM2+ 2007 ? AMD Athlon 64
AMD Athlon X2
AMD Phenom
AMD Phenom II PGA 940 1.27mm^[7] 200–2600 MHz Separated power planes
Replaces Socket AM2
AM2+ Pkg. CPUs can work in Socket AM2
AM2 Pkg. CPUs can work in Socket AM2+

Socket P 2007 ? Intel Core 2 PGA 478 533–1066 MT/s (133–266 MHz) For notebook platform
Replaces Socket M

Socket 441 2008 ? Intel Atom PGA 441 ? 400–667 MHz

LGA 1366/
Socket B 2008 ? Intel Core i7 (900 series)
Intel Xeon (35xx, 36xx, 55xx, 56xx series) LGA 1366 4.8-6.4 GT/s Replaces server-oriented Socket J (LGA 771) in the entry level.

Socket AM3 2009 ? AMD Phenom II
AMD Athlon II
AMD Sempron PGA 941^[13] 1.27mm^[7] 200–3200 MHz Separated power planes
Replaces Socket AM2+
AM3 Pkg. CPUs can work in Socket AM2/AM2+
Sempron 140 Only

LGA 1156/
Socket H 2009 ? Intel Core i7 (800 series)
Intel Core i5 (700, 600 series)
Intel Core i3 (500 series)
Intel Xeon (X3400, L3400 series)
Intel Pentium (G6000 series)
Intel Celeron (G1000 series) LGA 1156 ? 2.5 GT/s DMI bus is a (perhaps modified) PCI-E x4 v1.1 interface

Socket G34 2010 ? AMD Opteron (6000 series) LGA 1974 ? 200–3200 MHz Replaces Socket F

Socket C32 2010 ? AMD Opteron (4000 series) LGA 1207 ? 200–3200 MHz Replaces Socket F, Socket AM3

LGA 1248 2010 ? Intel Intel Itanium 9300-series LGA 1248 ? 4.8 GT/s

LGA 1567 2010 ? Intel Intel Xeon 6500/7500-series LGA 1567 ? 4.8-6.4 GT/s

LGA 1155/
Socket H2 2011/Q1 ? Intel Sandy Bridge-DT LGA 1155 ? 5 GT/s Supports 20 PCI-E 2.0 lanes.

LGA 2011/
Socket R Future (2011/Q3) ? Intel Sandy Bridge B2 LGA 2011 ? 4.8-6.4 GT/s Supports 40 PCI-E 3.0 lanes.

Socket FM1 2011 ? AMD Llano Processor PGA 905 1.27mm

Socket
name Year of introduction Year of EOL CPU families Package Pin count Pin pitch Bus speed Notes

Slotkets

Slotkets are special adapters for using socket processors in bus-compatible slot motherboards.

Notes and references

^ "Intel 815 Chipset Family". intel.com. http://www.intel.com/design/chipsets/designex/29071401.pdf. Retrieved 2009-05-04.

^ "423 Pin Socket (PGA423) Design Guidelines". intel.com. http://download.intel.com/design/Pentium4/guides/24920701.pdf. Retrieved 2009-05-03.

^ "Intel Pentium 4 Processor 478-Pin Socket (mPGA478) Design Guidelines". intel.com. http://download.intel.com/design/Pentium4/guides/24989002.pdf. Retrieved 2009-05-03.

^ "495-Pin and 615-pin micro-PGA ZIF Socket Design Specification Application Note". intel.com. http://download.intel.com/design/mobile/applnots/24528401.pdf. Retrieved 2009-05-03.

^ ^a ^b "mPGA 604 Socket Mechanical Design Guide". intel.com. http://www.intel.com/Assets/PDF/designguide/254239.pdf. Retrieved 2009-05-03.

^ "AMD Sempron Processor Product Data Sheet". amd.com. http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31805.pdf. Retrieved 2009-05-03.

^ ^a ^b ^c ^d ^e "AMD Opteron Processor Product Data Sheet". amd.com. http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf. Retrieved 2009-05-03.

^ CPU only has 478 pins, but the socket has 479.

^ "LGA775 Socket Mechanical Design Guide". amd.com. http://www.intel.com/Assets/PDF/designguide/302666.pdf. Retrieved 2009-05-04.

^ "LGA771 Socket Mechanical Design Guide". intel.com. http://www.intel.com/Assets/PDF/designguide/313871.pdf. Retrieved 2009-05-03.

^ "Low-Profile Socket S1 Design Specification". amd.com. http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31839.pdf. Retrieved 2009-05-03.

^ "Thermal Design Guide for Socket F (1207) Processors". amd.com. http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32800.pdf. Retrieved 2009-05-06.

^ CPU only has 938 pins, but the socket has 941.

See also

List of microprocessors

List of Intel microprocessors

List of AMD microprocessors

External links

Socket ID Guide

CPU Sockets Chart - A fairly detailed table listing x86 Sockets and associated attributes.

techPowerUp! CPU Database

Processor sockets

v · packages
DIP • PLCC

PGAs
Socket 1 • Socket 2 • Socket 3 • Socket 4 • Socket 5 • Socket 6 • Socket 7

v · d · eIntel CPU sockets and slots

Desktop sockets

Slot 1

Socket 370

Socket 423

Socket 478

LGA 775

LGA 1366

LGA 1156

LGA 1155

LGA 2011

Mobile sockets

Socket 441

Socket 479

Socket 495

Socket M

Socket P

Socket G1

Socket G2

Server sockets

Socket 8

Slot 2

Socket 603

Socket 604

PAC418

PAC611

LGA 771

LGA 1366

LGA 1156

LGA 1155

LGA 1356

LGA 1248

LGA 1567

LGA 2011

Legacy non-proprietary sockets

Socket 1

Socket 2

Socket 3

Socket 4

Socket 5

Socket 6

Socket 7

v · d · eAMD CPU sockets

Desktop sockets

Super Socket 7

Slot A

Socket A

Socket 754

Socket 939

Socket 940

Socket AM2

Socket F

Socket AM2+

Socket AM3

Socket AM3+

Socket FM1

Socket FM2

Mobile sockets

Socket A

Socket 563

Socket 754

Socket S1

Socket FS1

Server sockets

Socket A

Socket 940

Socket F

Socket F+

Socket G3 (cancelled)

Socket G34

Socket C32

Categories:
CPU sockets

Socket name	Year of introduction	Year of End Of Life	CPU families	Package	Pin count	Pin pitch	Bus speed	Notes
DIP	1970s	Still available	Intel 8086 Intel 8088	DIP	40	2.54mm	5/10 MHz
PLCC	?	Still available	Intel 80186 Intel 80286 Intel 80386	PLCC	68, 132	1.27mm	6–40 MHz
Socket 1	1989	?	Intel 80486	PGA	169	?	16–50 MHz
Socket 2	?	?	Intel 80486	PGA	238	?	16–50 MHz
Socket 3	1991	?	Intel 80486	PGA	237	?	16–50 MHz
Socket 4	?	?	Intel Pentium	PGA	273	?	60–66 MHz
Socket 5	?	?	Intel Pentium AMD K5 IDT WinChip C6 IDT WinChip 2	PGA	320	?	50–66 MHz
Socket 6	?	?	Intel 80486	PGA	235	?	?
Socket 7	1994	?	Intel Pentium Intel Pentium MMX AMD K6	PGA	321	?	50–66 MHz
Super Socket 7	1998	?	AMD K6-2 AMD AMD K6-III Rise mP6 Cyrix MII	PGA	321	?	66–100 MHz
Socket 8	1995	?	Intel Pentium Pro	PGA	387	?	60–66 MHz
Slot 1	1997	?	Intel Pentium II Intel Pentium III	Slot	242	?	66–133 MHz	Celeron (Covington, Mendocino) Pentium II (Klamath) Pentium III (Katmai)- all versions Pentium III (coppermine)
Slot 2	1998	?	Intel Pentium II Xeon	Slot	330	?	100–133 MHz
Socket 463/ Socket NexGen	?	?	NexGen Nx586	PGA	463	?	?
Socket 499	?	?	Alpha 21164A	Slot	587	?	?
Slot A	1999	?	AMD Athlon	Slot	242	?	100 MHz
Slot B	?	?	Alpha 21264	Slot	587	?	?
Socket 370	1999	?	Intel Pentium III Intel Celeron VIA Cyrix III VIA C3	PGA	370	1.27mm^[1]	66–133 MHz
Socket 462/ Socket A	2000	?	AMD Athlon AMD Duron AMD Athlon XP AMD Athlon XP-M AMD Athlon MP AMD Sempron	PGA	462	?	100–200 MHz This is a double data rate bus having a 400 MT/s (megatransfers/second) fsb in the later models
Socket 423	2000	?	Intel Pentium 4	PGA	423	1mm^[2]	400 MT/s (100 MHz)	Willamette core only
Socket 478/ Socket N	2000	?	Intel Pentium 4 Intel Celeron Intel Pentium 4 EE Intel Pentium 4 M	PGA	478	1.27mm^[3]	400–800 MT/s (100–200 MHz)
Socket 495	2000	?	Intel Celeron	PGA	495	1.27mm^[4]	?
PAC418	2001	?	Intel Itanium	PGA	418	?	133 MHz
Socket 603	2001	?	Intel Xeon	PGA	603	1.27mm^[5]	400–533 MT/s (100–133 MHz)
PAC611	2002	?	Intel Itanium 2 HP PA-8800, PA-8900	PGA	611	?	?
Socket 604	2002	?	Intel Xeon	PGA	604	1.27mm^[5]	400–1066 MT/s (100–266 MHz)
Socket 754	2003	?	AMD Athlon 64 AMD Sempron AMD Turion 64	PGA	754	1.27mm^[6]	200–800 MHz
Socket 940	2003	?	AMD Opteron Athlon 64 FX	PGA	940	1.27mm^[7]	200–1000 MHz
Socket 479	2003	?	Intel Pentium M Intel Celeron M	PGA	479^[8]	?	400–533 MT/s (100–133 MHz)
Socket 939	2004	11/2008	AMD Athlon 64 AMD Athlon 64 FX AMD Athlon 64 X2 AMD Opteron	PGA	939	1.27mm^[7]	200–1000 MHz	Support of Athlon 64 FX to 1 GHz Support of Opteron limited to 100-series only
LGA 775/ Socket T	2004	?	Intel Pentium 4 Intel Pentium D Intel Celeron Intel Celeron D Intel Pentium XE Intel Core 2 Duo Intel Core 2 Quad Intel Xeon	LGA	775	1.09mm x 1.17mm^[9]	1600 MHz
Socket 563	?	?	AMD Athlon XP-M	PGA	563	?	?
Socket M	2006	?	Intel Core Solo Intel Core Duo Intel Dual-Core Xeon Intel Core 2 Duo	PGA	478	?	533–667 MT/s (133–166 MHz)	For notebook platform Replaces Socket 479
LGA 771/ Socket J	2006	?	Intel Xeon	LGA	771	1.09mm x 1.17mm^[10]	1600 MHz
Socket S1	2006	?	AMD Turion 64 X2	PGA	638	1.27mm^[11]	200–800 MHz
Socket AM2	2006	?	AMD Athlon 64 AMD Athlon 64 X2	PGA	940	1.27mm^[7]	200–1000 MHz	Replaces Socket 754 and Socket 939
Socket F	2006	?	AMD Athlon 64 FX AMD Opteron	LGA	1207	1.1mm^[12]	?	Replaces Socket 940
Socket AM2+	2007	?	AMD Athlon 64 AMD Athlon X2 AMD Phenom AMD Phenom II	PGA	940	1.27mm^[7]	200–2600 MHz	Separated power planes Replaces Socket AM2 AM2+ Pkg. CPUs can work in Socket AM2 AM2 Pkg. CPUs can work in Socket AM2+
Socket P	2007	?	Intel Core 2	PGA	478		533–1066 MT/s (133–266 MHz)	For notebook platform Replaces Socket M
Socket 441	2008	?	Intel Atom	PGA	441	?	400–667 MHz
LGA 1366/ Socket B	2008	?	Intel Core i7 (900 series) Intel Xeon (35xx, 36xx, 55xx, 56xx series)	LGA	1366		4.8-6.4 GT/s	Replaces server-oriented Socket J (LGA 771) in the entry level.
Socket AM3	2009	?	AMD Phenom II AMD Athlon II AMD Sempron	PGA	941^[13]	1.27mm^[7]	200–3200 MHz	Separated power planes Replaces Socket AM2+ AM3 Pkg. CPUs can work in Socket AM2/AM2+ Sempron 140 Only
LGA 1156/ Socket H	2009	?	Intel Core i7 (800 series) Intel Core i5 (700, 600 series) Intel Core i3 (500 series) Intel Xeon (X3400, L3400 series) Intel Pentium (G6000 series) Intel Celeron (G1000 series)	LGA	1156	?	2.5 GT/s	DMI bus is a (perhaps modified) PCI-E x4 v1.1 interface
Socket G34	2010	?	AMD Opteron (6000 series)	LGA	1974	?	200–3200 MHz	Replaces Socket F
Socket C32	2010	?	AMD Opteron (4000 series)	LGA	1207	?	200–3200 MHz	Replaces Socket F, Socket AM3
LGA 1248	2010	?	Intel Intel Itanium 9300-series	LGA	1248	?	4.8 GT/s
LGA 1567	2010	?	Intel Intel Xeon 6500/7500-series	LGA	1567	?	4.8-6.4 GT/s
LGA 1155/ Socket H2	2011/Q1	?	Intel Sandy Bridge-DT	LGA	1155	?	5 GT/s	Supports 20 PCI-E 2.0 lanes.
LGA 2011/ Socket R	Future (2011/Q3)	?	Intel Sandy Bridge B2	LGA	2011	?	4.8-6.4 GT/s	Supports 40 PCI-E 3.0 lanes.
Socket FM1	2011	?	AMD Llano Processor	PGA	905	1.27mm
Socket name	Year of introduction	Year of EOL	CPU families	Package	Pin count	Pin pitch	Bus speed	Notes

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CPU Socket — Ein Prozessorsockel (engl.: CPU socket) ist eine Steckplatzvorrichtung für Computerprozessoren, um einen Prozessor austauschbar auf einer Hauptplatine oder einer Slot CPU zu montieren. Inhaltsverzeichnis 1 Details 2 x86/IA32 Prozessoren 2.1 Intel … Deutsch Wikipedia
Socket M — Type PGA ZIF Chip form factors … Wikipedia
Socket 370 — CPU socket name = Socket 370 type = PGA ZIF formfactors = Plastic pin grid array (PPGA) and Flip chip pin grid array (FC PGA and FC PGA2) contacts = 370 protocol = GTL+ fsb = 66, 100 and 133 MHz voltage = 1.05–2.1 V processors = Intel Celeron… … Wikipedia
Socket B — CPU socket name = Socket B formfactors = Flip chip land grid array | contacts = 1366 type = LGA protocol = Intel QuickPath Interconnect core bus = 4800 MT/s, 6400 MT/s fsb = 1× to 2× Quickpath voltage = processors = Intel Nehalem CPU s:… … Wikipedia
Socket 604 — Type PGA ZIF Chip form factors pin grid array Contacts 604 Processors Intel Xeon … Wikipedia
Socket F — CPU socket name = Socket F caption = rfu c|2006 12 28 formfactors = Flip chip land grid array type = LGA contacts = 1207 protocol = fsb = 200 MHz System clock 1 GHz HyperTransport voltage = processors = Opteron 2xxx, 8xxx series Athlon 64 FX FX… … Wikipedia
Socket S1 — CPU socket name = Socket S1 type = PGA ZIF formfactors = contacts = 638 protocol = fsb = up to 800 MHz HyperTransport voltage = ? processors = Turion 64 X2; Mobile Sempron; Turion 64 (MK series only) Socket S1 is the CPU socket type used by AMD… … Wikipedia
Socket 479 — CPU socket name = Socket 479 formfactors = Flip chip pin grid array (FC PGA2) contacts = 479 type = PGA ZIF protocol = AGTL+ fsb = 100 MHz (Quadpumped), FSB400 133 MHz (Quadpumped), FSB533 voltage = processors = Intel Pentium M Intel Celeron M… … Wikipedia
Socket AM3 — CPU socket name = Socket AM3 formfactors = PGA type = PGA ZIF contacts = 940 protocol = fsb = 200 MHz System clock 2 GHz HyperTransport 3.0 voltage = Split CPU/Memory controller voltages processors = DDR3 capable Phenom series, Athlon X2, Sempron … Wikipedia
Socket AM2+ — CPU socket name = Socket AM2+ formfactors = Ceramic Pin Grid Array (CPGA) Organic Pin Grid Array (OPGA) type = PGA ZIF contacts = 940 protocol = fsb = 200 MHz System clock 2.6 GHz HyperTransport voltage = ? processors = Athlon 64 Athlon 64 X2… … Wikipedia

Academic Dictionaries and Encyclopedias

CPU socket

Contents

Function

List of sockets and slots

Slotkets

Notes and references

See also

External links

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Academic Dictionaries and Encyclopedias

Wikipedia

CPU socket

Contents

Function

List of sockets and slots

Slotkets

Notes and references

See also

External links

Look at other dictionaries:

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