CompTIA A+ | Microsoft MTA O/S: CPU sockets
You may not typically handle the insides of your computers, but if your business requires knowledge of Central Processing Units (CPU), then you’ll also need to learn about CPU sockets
. It’s not a narrow subject: there are almost as many sockets as there are processor types. However, you can learn the specifications of the two major types of sockets, and later refer to manufacturer documentation to get additional info on those that a particular processor uses.
Pin Grid Array (PGA)
Pin Grid Array (PGA) CPU sockets involve using metal or ceramic pins to connect a CPU to a motherboard. Pins attached to a special carrier house the CPU, and the pins are inserted to the motherboard containing a matching set of holes. The pins carry electrical signals to and from the CPU to the rest of the computer. The metal or ceramic used for the pins and housing are therefore resistant to high heat, due to the large amounts of electrical current passing through them.
Land Grid Array (LGA)
The Land Grid array socket was built in response to the PGA. The LGA still contains pins — but the pins are already in the motherboard. The socket itself rests in the motherboard and has an enclosure at its top end, and the CPU is placed inside the enclosure and secured using a pressure lever. The CPU rests in the enclosure through a series of grooves, and communicates through electronic signals transmitted through transmission surfaces inside the socket..
PGA Versus LGA
PGA sockets were originally used as the primary CPU controllers for Intelprocessors. However, PGA sockets have a notable weakness: the pins of the socket are easily damaged, rendering these and the CPU useless. Even building PGA sockets to ensure that zero actual pressure is required to insert the chip hasn’t mitigated this problem. However, it’s been argued that processors should not be changed or removed often, if at all, rendering this weakness something of a moot point. Both Intel and AMD use PGA and LGA sockets.
Intel and AMD Processors
As both processor manufacturers use different sockets, the basic differences between the two types can vary. Furthermore, both AMD and Intel also create specific socket types for certain processors. In fact, Intel often creates sockets for processors that are incompatible with the previous generation or processors. The difference between certain sockets may not be apparent just from sight alone. Your best bet when upgrading processors is to consult the manufacturer’s instructions on what sort of sockets are required for the processor, and what socket your motherboard uses.
List of 80×86 sockets and slots
| Socket name |
Year of introduction | Year ofEnd Of Life | CPU families supported | Computer type | 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 to 132 | 1.27mm | 6–40 MHz | ||
| Socket 1 | 1989 | ? | Intel 80486 | PGA | 169 | 2.54mm | 16–50 MHz | ||
| Socket 2 | ? | ? | Intel 80486 | PGA | 238 | 2.54mm | 16–50 MHz | ||
| Socket 3 | 1991 | ? | Intel 80486 | PGA | 237 | 2.54mm | 16–50 MHz | ||
| Socket 4 | ? | ? | Intel Pentium | PGA | 273 | ? | 60–66 MHz | ||
| Socket 5 | ? | ? | Intel Pentium AMD K5 Cyrix 6×86 IDT WinChip C6 IDT WinChip 2 |
PGA | 320 | ? | 50–66 MHz | ||
| Socket 6 | ? | ? | Intel 80486 | PGA | 235 | ? | ? | Designed but not used | |
| Socket 7 | 1994 | ? | Intel Pentium Intel Pentium MMX AMD K6 |
PGA | 321 | ? | 50–66 MHz | It is possible to use Socket 7 processors in a Socket 5. An adapter is required, or if one is careful, a socket 7 can be pulled off its pins and put onto a socket 5 board, allowing the use of socket 7 processors. | |
| Super Socket 7 | 1998 | ? | AMD K6-2 AMD K6-2+ AMD K6-III AMD K6-III+ Rise mP6 Cyrix MII |
PGA | 321 | ? | 66–100 MHz | Backward compatible with Socket 5 and Socket 7 processors. | |
| 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, Deschutes) Pentium III (Katmai)- all versions Pentium III (coppermine) |
|
| Slot 2 | 1998 | ? | Intel Pentium II Xeon | Slot | 330 | ? | 100–133 MHz | ||
| Socket 463/ Socket NexGen |
1994 | ? | NexGen Nx586 | PGA | 463 | ? | 37.5–66MHz | ||
| Socket 587 | 1995 | ? | 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 |
Desktop | 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.Can accept some of Socket 478 CPU with an adapter | |
| Socket 478/ Socket N |
2000 | ~2007 | 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 CeleronIntel Pentium III | PGA | 495 | 1.27mm[4] | 66–133MHz | ||
| 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 |
Desktop | 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 |
Desktop | LGA | 775 | 1.09mm x 1.17mm[9] | 1600 MHz | Can accept LGA 771 CPU with slight modification and use of an adapter |
| 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 |
Notebook | PGA | 478 | ? | 533–667 MT/s (133–166 MHz) | Replaces Socket 479 |
| LGA 771/ Socket J |
2006 | ? | Intel Xeon | Server | LGA | 771 | 1.09mm x 1.17mm[10] | 1600 MHz | See LGA 775/Socket T above |
| 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/Socket L (Socket 1207FX) | 2006 | ? | AMD Athlon 64 FX AMD Opteron(Socket L only support Athlon 64 FX) |
ServerDesktop | LGA | 1207 | 1.1mm[12] | ?Socket L: 1000 MHz in Single CPU mode, 2000 MHz in Dual CPU mode | Replaces Socket 940Socket L was intended for enthusiasts who wanted server power in a desktop PC. It is just a re-branded Socket F that doesn’t need special RAM, and may have only been used in the Asus L1N64-SLI WS Motherboard. |
| 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 | Notebook | PGA | 478 | 533–1066 MT/s (133–266 MHz) | Replaces Socket M | |
| Socket 441 | 2008 | ? | Intel Atom | Sub-notebook | PGA | 441 | ? | 400–667 MHz | |
| LGA 1366/ Socket B |
2008 | ? | Intel Core i7 (900 series) Intel Xeon (35xx, 36xx, 55xx, 56xx series) |
Server | LGA | 1366 | 4.8–6.4 GT/s | Replaces Socket J (LGA 771) in the entry level. | |
| rPGA 988A/ Socket G1 |
2008 | ? | Intel Core i7 (600, 700, 800, 900 series) Intel Core i5 (400, 500 series) Intel Core i3 (300 series) Intel Pentium (P6000 series) Intel Celeron (P4000 series) |
Notebook | rPGA | 988 | 1mm | 2.5GT/s, 4.8GT/s | |
| Socket AM3 | 2009 | ? | AMD Phenom II AMD Athlon II AMD Sempron |
PGA | 941[13]or 940[14] | 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 | 2012 | 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) |
Desktop | LGA | 1156 | ? | 2.5 GT/s | DMI bus is a (perhaps modified) PCIe 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 | Server | LGA | 1248 | ? | 4.8 GT/s | |
| LGA 1567 | 2010 | ? | Intel Intel Xeon 6500/7500-series | Server | LGA | 1567 | ? | 4.8–6.4 GT/s | |
| LGA 1155/ Socket H2 |
2011/Q1 2011.01.09 |
? | Intel Sandy Bridge Intel Ivy BridgeIntel Xeon E3 12xx[Sandy Bridge 12xx][Ivy Bridge 12xxV2] |
DesktopServer | LGA | 1155 | ? | 5.7, GT/s | Sandy Bridge supports 20PCIe 2.0 lanes. Ivy Bridge supports 40PCIe 3.0 lanes. Intel Mainstream Socket. |
| LGA 2011/ Socket R |
2011/Q3 (2011.11.14) |
? | Intel Core i7 3xxx Sandy Bridge-E Intel Core i7 4xxx Ivy Bridge-E Intel Xeon E5 2xxx/4xxx [Sandy Bridge EP] (2/4S) Intel Xeon E5-2xxx/4xxx v2 [Ivy Bridge EP] (2/4S) |
Desktop Server |
LGA | 2011 | ? | 4.8–6.4 GT/s | Sandy Bridge-E/EP and Ivy Bridge-E/EP both support 40 PCIe 3.0 lanes. Using the Xeon focused 2011 socket gives also 4 memory Channels. |
| rPGA 988B/ Socket G2 |
2011 | ? | Intel Core i7 (2000, 3000 series) Intel Core i5 (2000, 3000 series) Intel Core i3 (2000, 3000 series) |
Notebook | rPGA | 988 | 1mm | 2.5GT/s, 4.8GT/s | |
| Socket FM1 | 2011 | ? | AMD Llano Processors | Desktop | PGA | 905 | 1.27mm | used for 1st generation APUs | |
| Socket AM3+ | 2011 | ? | AMD FX Vishera AMD FX Zambezi AMD Phenom II AMD Athlon II AMD Sempron |
Desktop | PGA | 942 (CPU 71pin) | 1.27mm | ||
| Socket FM2 | 2012 | ? | AMD Trinity Processors | Desktop | PGA | 904 | 1.27mm | used for 2nd generation APUs | |
| LGA 1150/ Socket H3 |
2013.06.03 2014.05.11 (2015.06.02) |
? | Intel Haswell Intel Haswell Refresh Intel Broadwell |
Desktop | LGA | 1150 | ? | used for Intel’s 4th generation (Haswell/Haswell Refresh) CPUs | |
| Socket G3/ Socket G3 |
2013/Q2 | ? | Intel Haswell Intel Broadwell |
Notebook | rPGA | 946 | ? | ||
| Socket FM2+ | 2014 | ? | AMD | Desktop | PGA | 906 | ? | ? | Compatible with AMDAccelerated Processing Units (APUs) such as “Richland” and “Trinity” |
| LGA 1151/ | 2015 | ? | Intel Skylake | Desktop | LGA | 1151 | ? | used for Intel’s 6th generation (Skylake) CPUs | |
| Socket name |
Year of introduction | Year ofEOL | CPU families | Computer type | Package | Pin count | Pin pitch | Bus speed | Notes |
**Source by wikipedia **
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