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CPU socket
open-in-new
<h2 id="function">Function</h2> <p>A CPU socket is made of plastic, and often comes with a lever or latch, and with 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 <a href="/facts/Pin_grid_array/K6VlYgrv">PGA (pin grid array)</a> package are inserted into the socket and, if included, the latch is closed. CPUs with an <a href="/facts/Land_grid_array/F2Imv5ST">LGA (land grid array)</a> package are inserted into the socket, the latch plate is flipped into position atop the CPU, and the lever is lowered and locked into place, pressing the CPU's contacts firmly against the socket's lands and ensuring a good connection, as well as increased mechanical stability. </p> <h2 id="list">List</h2> <h3>80x86</h3> <p>Table legend: </p> Intel only AMD only <table><tbody><tr><th>Socketname</th><th>Year of introduction</th><th>CPU families supported</th><th>Computer type</th><th>Package</th><th>Pin count</th><th>Pin pitch(mm)</th><th>Bus <a href="/facts/Clock_rate/w055Woaj">clock</a> &<a href="/facts/Transfer_(computing)/fgBCc5U9">transfers</a></th><th>Notes</th></tr><tr><th><a href="/facts/Dual_in-line_package/Qgu6Jave">DIP</a></th><td>1970s</td><td><a href="/facts/Intel/SMF0gJJX">Intel</a> <a href="/facts/8086/sS9dlSdK">8086</a>Intel <a href="/facts/8088/DdWKfyBp">8088</a></td><td></td><td><a href="/facts/Dual_in-line_package/Qgu6Jave">DIP</a></td><td>40</td><td>2.54</td><td>5/10 MHz</td><td></td></tr><tr><th><a href="/facts/Plastic_leaded_chip_carrier/8Uwkvmws">PLCC</a></th><td>?</td><td>Intel <a href="/facts/80186/jUjWLMEX">80186</a>Intel <a href="/facts/80286/rucEU93g">80286</a>Intel <a href="/facts/80386/ag5eSgWv">80386</a></td><td></td><td><a href="/facts/Plastic_leaded_chip_carrier/8Uwkvmws">PLCC</a></td><td>68 to 132</td><td>1.27</td><td>6–40 MHz</td><td></td></tr><tr><th>PGA68</th><td>?</td><td>Intel 80286</td><td></td><td><a href="/facts/Pin_grid_array/K6VlYgrv">PGA</a></td><td>68</td><td></td><td></td><td></td></tr><tr><th>PGA132</th><td>?</td><td>Intel 80386</td><td></td><td>PGA</td><td>132</td><td></td><td></td><td></td></tr><tr><th>PGA168</th><td>?</td><td>Intel <a href="/facts/80486/2zfEAXAw">80486</a>AMD 486Cyrix 486</td><td></td><td>PGA</td><td>168</td><td>2.54</td><td>16–50 MHz</td><td>Sometimes referred to as Socket 0 or Socket 486</td></tr><tr><th><a href="/facts/Socket_1/KfAsqfr2">Socket 1</a></th><td>1989</td><td>Intel 80486AMD 486AMD 5x86Cyrix 486Cyrix 5x86</td><td></td><td>PGA</td><td>169</td><td>2.54</td><td>16–50 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_2/DwGFmVND">Socket 2</a></th><td>?</td><td>Intel 80486Intel <a href="/facts/Pentium_OverDrive/dq5xG2mt">Pentium OverDrive</a> (P24T)Intel DX4AMD 486AMD 5x86Cyrix 486Cyrix 5x86</td><td></td><td>PGA</td><td>238</td><td>2.54</td><td>16–50 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_3/vbH2h5fN">Socket 3</a></th><td>1991</td><td>Intel 80486Intel Pentium OverDrive (P24T)Intel DX4AMD 486AMD 5x86Cyrix 486Cyrix 5x86IBM Blue Lightning</td><td></td><td>PGA</td><td>237</td><td>2.54</td><td> 16–50 MHz<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a></td><td></td></tr><tr><th><a href="/facts/Socket_4/zBuBwkuo">Socket 4</a></th><td>1993</td><td>Intel <a href="/facts/Intel_P5/dqChAmxz">Pentium</a></td><td></td><td>PGA</td><td>273</td><td>?</td><td>60–100 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_5/hf8FosEN">Socket 5</a></th><td>1994</td><td>Intel Pentium<a href="/facts/Advanced_Micro_Devices/CB1G7QTb">AMD</a> <a href="/facts/AMD_K5/IPMKlDsR">K5</a><a href="/facts/Cyrix/zPI6NhTm">Cyrix</a> <a href="/facts/Cyrix_6x86/q43nNY14">6x86</a><a href="/facts/Integrated_Device_Technology/vuXjhG5H">IDT</a> <a href="/facts/WinChip/mslaY86X">WinChip</a> C6IDT WinChip 2</td><td></td><td>PGA</td><td>320</td><td>?</td><td>50–100 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_6/DLRvaXso">Socket 6</a></th><td>?</td><td>Intel 80486</td><td></td><td>PGA</td><td>235</td><td>?</td><td>?</td><td>Designed but not used</td></tr><tr><th>Socket 463/Socket NexGen</th><td>1994</td><td><a href="/facts/NexGen/7WWCsBnP">NexGen</a> <a href="/facts/Nx586/7WWCsBnP">Nx586</a></td><td></td><td>PGA</td><td>463</td><td>?</td><td>37.5–66 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_7/PTh7y2K0">Socket 7</a></th><td>1994</td><td>Intel PentiumIntel <a href="/facts/Pentium_MMX/dqChAmxz">Pentium MMX</a>AMD <a href="/facts/AMD_K6/VSDY3GcM">K6</a></td><td></td><td>PGA</td><td>321</td><td>?</td><td>50–66 MHz</td><td>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.</td></tr><tr><th><a href="/facts/Socket_8/xx3VNHC3">Socket 8</a></th><td>1995</td><td>Intel <a href="/facts/Pentium_Pro/mTAN64fo">Pentium Pro</a></td><td></td><td>PGA</td><td>387</td><td>?</td><td>60–66 MHz</td><td></td></tr><tr><th><a href="/facts/Slot_1/DT8bw2a9">Slot 1</a></th><td>1997</td><td>Intel <a href="/facts/Pentium_II/VoHQLV1s">Pentium II</a>Intel <a href="/facts/Pentium_III/sV1v2Frq">Pentium III</a></td><td>Desktop</td><td><a href="/facts/Edge_connector/AXBbRgIV">Slot</a></td><td>242</td><td>?</td><td>66–133 MHz</td><td>Celeron (Covington, Mendocino)Pentium II (Klamath, Deschutes)Pentium III (Katmai)- all versionsPentium III (coppermine)</td></tr><tr><th><a href="/facts/Super_Socket_7/DTA4h5oz">Super Socket 7</a></th><td>1998</td><td>AMD <a href="/facts/AMD_K6-2/xu2VCf0r">K6-2</a>AMD <a href="/facts/AMD_K6-III/3xAcBWQT">K6-III</a><a href="/facts/Rise_Technology/37xhy7Vf">Rise</a> <a href="/facts/MP6/zMK09BPP">mP6</a>Cyrix <a href="/facts/Cyrix_6x86/q43nNY14">MII</a></td><td></td><td>PGA</td><td>321</td><td>?</td><td>66–100 MHz</td><td>Backward compatible with Socket 5 and Socket 7 processors.</td></tr><tr><th><a href="/facts/Slot_2/wq85MU2X">Slot 2</a></th><td>1998</td><td>Intel <a href="/facts/Pentium_II_Xeon/j1M8Hp6D">Pentium II Xeon</a>Intel <a href="/facts/Pentium_III_Xeon/j1M8Hp6D">Pentium III Xeon</a></td><td>Server</td><td>Slot</td><td>330</td><td>?</td><td>100–133 MHz</td><td></td></tr><tr><th>Socket 615</th><td>1999</td><td>Intel <a href="/facts/Mobile_Pentium_II/VoHQLV1s">Mobile Pentium II</a>Intel <a href="/facts/Mobile_Celeron/kX00LpnM">Mobile Celeron</a></td><td>Notebook</td><td>PGA</td><td>615</td><td>?</td><td>66 MHz</td><td></td></tr><tr><th><a href="/facts/Slot_A/8wMUTN80">Slot A</a></th><td>1999</td><td>AMD <a href="/facts/Athlon/3BFQu05f">Athlon</a></td><td>Desktop</td><td>Slot</td><td>242</td><td>?</td><td>100 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_370/KE7WCzKE">Socket 370</a></th><td>1999</td><td>Intel Pentium IIIIntel <a href="/facts/Celeron/kX00LpnM">Celeron</a><a href="/facts/VIA_Technologies/g6REHNFE">VIA</a> <a href="/facts/Cyrix_III/v3PtdAEq">Cyrix III</a>VIA <a href="/facts/VIA_C3/Y4IQ8VCd">C3</a></td><td>Desktop</td><td>PGA</td><td>370</td><td>1.27<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a></td><td>66–133 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_A/8WDGIcbL">Socket A</a>/<a href="/facts/Socket_462/8WDGIcbL">Socket 462</a></th><td>2000</td><td>AMD AthlonAMD <a href="/facts/Duron/V1Ny0C5n">Duron</a>AMD <a href="/facts/Athlon/3BFQu05f">Athlon XP</a>AMD <a href="/facts/Athlon/3BFQu05f">Athlon XP-M</a>AMD <a href="/facts/Athlon/3BFQu05f">Athlon MP</a>AMD <a href="/facts/Sempron/hk5blISe">Sempron</a></td><td>Desktop</td><td>PGA</td><td>462</td><td>?</td><td>100–200 MHz400 MT/s<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a></td><td></td></tr><tr><th><a href="/facts/Socket_423/6MjKjNUC">Socket 423</a></th><td>2000</td><td>Intel <a href="/facts/Pentium_4/6tIFuHIF">Pentium 4</a></td><td>Desktop</td><td>PGA</td><td>423</td><td>1<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a></td><td>100 MHz400 MT/s</td><td>Willamette core only.Can accept some of Socket 478 CPU with an adapter</td></tr><tr><th><a href="/facts/Socket_495/wC7LT59J">Socket 495</a></th><td>2000</td><td>Intel CeleronIntel Pentium III</td><td>Notebook</td><td>PGA</td><td>495</td><td>1.27<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a></td><td>66–133 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_603/FMpGAmob">Socket 603</a></th><td>2001</td><td>Intel <a href="/facts/Xeon/j1M8Hp6D">Xeon</a></td><td>Server</td><td>PGA</td><td>603</td><td>1.27<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></td><td>100–133 MHz400–533 MT/s</td><td></td></tr><tr><th><a href="/facts/Socket_478/2696AeMS">Socket 478</a>/<a href="/facts/Socket_N/2696AeMS">Socket N</a></th><td>2001</td><td>Intel Pentium 4Intel CeleronIntel <a href="/facts/P4EE/6tIFuHIF">Pentium 4 EE</a>Intel <a href="/facts/List_of_Intel_Pentium_4_processors/DmdHvHhX">Pentium 4 M</a></td><td>Desktop</td><td>PGA</td><td>478</td><td>1.27<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></td><td>100–200 MHz400–800 MT/s</td><td></td></tr><tr><th><a href="/facts/Socket_563/STbM2MAD">Socket 563</a></th><td>2002</td><td>AMD Athlon XP-M</td><td>Notebook</td><td>PGA</td><td>563</td><td>?</td><td>333 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_604/9B8Y3HuR">Socket 604</a></th><td>2002</td><td>Intel Xeon</td><td>Server</td><td>PGA</td><td>604</td><td>1.27<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a></td><td>100–266 MHz400–1066 MT/s</td><td></td></tr><tr><th><a href="/facts/Socket_754/In5KR23U">Socket 754</a></th><td>2003</td><td>AMD <a href="/facts/Athlon_64/3JLpVnQd">Athlon 64</a>AMD SempronAMD <a href="/facts/Turion_64/CNf3tLud">Turion 64</a></td><td>Desktop</td><td>PGA</td><td>754</td><td>1.27<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></td><td>200–800 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_940/2S2HseR1">Socket 940</a></th><td>2003</td><td>AMD <a href="/facts/Opteron/IF1ueyIJ">Opteron</a>AMD <a href="/facts/Athlon_64_FX/3JLpVnQd">Athlon 64 FX</a></td><td>DesktopServer</td><td>PGA</td><td>940</td><td>1.27<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></td><td>200–1000 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_479/KQ1w4T8s">Socket 479</a></th><td>2003</td><td>Intel <a href="/facts/Pentium_M/TwKtPHcm">Pentium M</a>Intel <a href="/facts/Celeron_M/kX00LpnM">Celeron M</a></td><td>Notebook</td><td>PGA</td><td>479<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a></td><td>?</td><td>100–133 MHz400–533 MT/s</td><td></td></tr><tr><th><a href="/facts/Socket_939/XAg6zuE8">Socket 939</a></th><td>2004</td><td>AMD Athlon 64AMD Athlon 64 FXAMD <a href="/facts/Athlon_64_X2/aB8h01HY">Athlon 64 X2</a>AMD Opteron</td><td>Desktop</td><td>PGA</td><td>939</td><td>1.27<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></td><td>200–1000 MHz</td><td>Support of Athlon 64 FX to 1 GHzSupport of Opteron limited to 100-series only</td></tr><tr><th><a href="/facts/LGA_775/flafNH7L">LGA 775</a>/<a href="/facts/Socket_T/flafNH7L">Socket T</a></th><td>2004</td><td>Intel Pentium 4Intel <a href="/facts/Pentium_D/rLD9pQ8F">Pentium D</a>Intel CeleronIntel <a href="/facts/Celeron_D/kX00LpnM">Celeron D</a>Intel <a href="/facts/Pentium_Extreme_Edition/rLD9pQ8F">Pentium XE</a>Intel <a href="/facts/Core_2_Duo/lwa8VSdT">Core 2 Duo</a>Intel <a href="/facts/Core_2_Quad/lwa8VSdT">Core 2 Quad</a>Intel Xeon</td><td>Desktop</td><td><a href="/facts/Land_grid_array/F2Imv5ST">LGA</a></td><td>775</td><td>1.09 x 1.17<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a></td><td>1600 MHz</td><td>Can accept LGA 771 CPU with slight modification and use of an adapter</td></tr><tr><th><a href="/facts/Socket_M/nGnyAqfz">Socket M</a></th><td>2006</td><td>Intel <a href="/facts/Core_Solo/lwa8VSdT">Core Solo</a>Intel <a href="/facts/Core_Duo/lwa8VSdT">Core Duo</a>Intel Dual-Core XeonIntel Core 2 Duo</td><td>Notebook</td><td>PGA</td><td>478</td><td>?</td><td>133–166 MHz533–667 MT/s</td><td>Replaces Socket 479</td></tr><tr><th><a href="/facts/LGA_771/tDIc71UP">LGA 771</a>/<a href="/facts/Socket_J/tDIc71UP">Socket J</a></th><td>2006</td><td>Intel Xeon</td><td>Server</td><td>LGA</td><td>771</td><td>1.09 x 1.17<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></td><td>1600 MHz</td><td>See LGA 775/Socket T above</td></tr><tr><th><a href="/facts/Socket_S1/zGfhTonT">Socket S1</a></th><td>2006</td><td>AMD <a href="/facts/Turion_64_X2/CNf3tLud">Turion 64 X2</a></td><td>Notebook</td><td>PGA</td><td>638</td><td>1.27<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></td><td>200–800 MHz</td><td></td></tr><tr><th><a href="/facts/Socket_AM2/xI3PW3L1">Socket AM2</a></th><td>2006</td><td>AMD Athlon 64AMD Athlon 64 X2</td><td>Desktop</td><td>PGA</td><td>940</td><td>1.27<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></td><td>200–1000 MHz</td><td>Replaces Socket 754 and Socket 939</td></tr><tr><th><a href="/facts/Socket_F/TfCg0cRm">Socket F</a>/<a href="/facts/Socket_L/TfCg0cRm">Socket L</a> (<a href="/facts/Socket_1207FX/TfCg0cRm">Socket 1207FX</a>)</th><td>2006</td><td>AMD Athlon 64 FXAMD Opteron(Socket L only support Athlon 64 FX)</td><td>DesktopServer</td><td>LGA</td><td>1207</td><td>1.1<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a></td><td>Socket L: 1000 MHz in Single CPU mode,2000 MHz in Dual CPU mode</td><td>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.</td></tr><tr><th><a href="/facts/Socket_AM2%252B/3MTS21Yy">Socket AM2+</a></th><td>2007</td><td>AMD Athlon 64AMD <a href="/facts/Athlon_X2/aB8h01HY">Athlon X2</a>AMD <a href="/facts/AMD_Phenom/TaGxakcd">Phenom</a>AMD <a href="/facts/Phenom_II/6YW9Nnz9">Phenom II</a></td><td>Desktop</td><td>PGA</td><td>940</td><td>1.27<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></td><td>200–2600 MHz</td><td>Separated power planesReplaces Socket AM2AM2+ Pkg. CPUs can work in Socket AM2AM2 Pkg. CPUs can work in Socket AM2+</td></tr><tr><th><a href="/facts/Socket_P/EftaqrmM">Socket P</a></th><td>2007</td><td>Intel <a href="/facts/Core_2/9gJP9o8p">Core 2</a></td><td>Notebook</td><td>PGA</td><td>478</td><td>?</td><td>133–266 MHz533–1066 MT/s</td><td>Replaces Socket M</td></tr><tr><th><a href="/facts/LGA_1366/8k078HcP">LGA 1366</a>/<a href="/facts/Socket_B/8k078HcP">Socket B</a></th><td>2008</td><td>Intel <a href="/facts/Core_i7/5qT6deUr">Core i7</a> (900 series)Intel Xeon (35xx, 36xx, 55xx, 56xx series)</td><td>DesktopServer</td><td>LGA</td><td>1366</td><td>?</td><td>4.8–6.4 GT/s</td><td>Replaces Socket J (LGA 771) in the entry level.</td></tr><tr><th><a href="/facts/Socket_AM3/5xvKE4XM">Socket AM3</a></th><td>2009</td><td>AMD Phenom IIAMD <a href="/facts/Athlon_II/5HNz5k86">Athlon II</a>AMD SempronAMD Opteron (1300 series)</td><td>Desktop</td><td>PGA</td><td>941<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a> or 940<a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a></td><td>1.27<a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a></td><td>200–3200 MHz</td><td>Separated power planesReplaces Socket AM2+AM3 Pkg. CPUs can work in Socket AM2/AM2+Sempron 140 only</td></tr><tr><th><a href="/facts/RPGA_988A/1PSenEsP">rPGA 988A</a>/<a href="/facts/Socket_G1/1PSenEsP">Socket G1</a></th><td>2009</td><td>Intel <a href="/facts/Clarksfield_(microprocessor)/Vdl0t0Jz">Clarksfield</a>Intel <a href="/facts/Arrandale/8CsvVMyq">Arrandale</a></td><td>Notebook</td><td><a href="/facts/Pin_grid_array/K6VlYgrv">rPGA</a></td><td>988</td><td>1</td><td>2.5 GT/s</td><td>Replaces Socket P</td></tr><tr><th><a href="/facts/LGA_1156/9k3NLkz7">LGA 1156</a>/<a href="/facts/Socket_H/9k3NLkz7">Socket H</a></th><td>2009</td><td>Intel <a href="/facts/Nehalem_(microarchitecture)/UPsI457h">Nehalem</a> (1st gen)Intel <a href="/facts/Westmere_(microarchitecture)/yB4HcYdY">Westmere</a></td><td>Desktop</td><td>LGA</td><td>1156</td><td>?</td><td>2.5 GT/s</td><td><a href="/facts/Direct_Media_Interface/ylK0cfmm">DMI</a> bus is a (perhaps modified) <a href="/facts/PCI_Express/ADhsLCUK">PCIe</a> x4 v1.1 interface</td></tr><tr><th><a href="/facts/Socket_G34/NvygjtjY">Socket G34</a></th><td>2010</td><td>AMD Opteron (6000 series)</td><td>Server</td><td>LGA</td><td>1974</td><td>?</td><td>200–3200 MHz</td><td>Replaces Socket F</td></tr><tr><th><a href="/facts/Socket_C32/4Aje2Xnu">Socket C32</a></th><td>2010</td><td>AMD Opteron (4000 series)</td><td>Server</td><td>LGA</td><td>1207</td><td>?</td><td>200–3200 MHz</td><td>Replaces Socket F, Socket AM3</td></tr><tr><th><a href="/facts/LGA_1567/SEpFWW02">LGA 1567</a>/<a href="/facts/Socket_LS/SEpFWW02">Socket LS</a></th><td>2010</td><td>Intel <a href="/facts/Beckton_(microprocessor)/j1M8Hp6D">Xeon 6500/7500-series</a></td><td>Server</td><td>LGA</td><td>1567</td><td>?</td><td>4.8–6.4 GT/s</td><td></td></tr><tr><th><a href="/facts/LGA_1155/uMWcfNas">LGA 1155</a>/<a href="/facts/Socket_H2/uMWcfNas">Socket H2</a></th><td>2011/Q12011.01.09</td><td>Intel <a href="/facts/Sandy_Bridge_(microarchitecture)/os1WwI9l">Sandy Bridge</a> (2nd gen)Intel <a href="/facts/Ivy_Bridge_(microarchitecture)/VklHpEK1">Ivy Bridge</a> (3rd gen)</td><td>Desktop</td><td>LGA</td><td>1155</td><td>?</td><td>5.7 GT/s</td><td>used for Intel 2nd generation, 3rd generation processors.<p>Sandy Bridge supports 20 PCIe 2.0 lanes.Ivy Bridge supports 40 PCIe 3.0 lanes.Intel Mainstream Socket.</p></td></tr><tr><th><a href="/facts/LGA_2011/wMWkCtCv">LGA 2011</a>/<a href="/facts/Socket_R/wMWkCtCv">Socket R</a></th><td>2011/Q32011.11.14</td><td>Intel Core i7 3xxx <a href="/facts/Sandy_Bridge-E/tgRzjeud">Sandy Bridge-E</a>Intel Core i7 4xxx <a href="/facts/Ivy_Bridge-E/VklHpEK1">Ivy Bridge-E</a>Intel Xeon E5 2xxx/4xxx (Sandy Bridge EP) (2/4S)Intel Xeon E5-2xxx/4xxx v2 (Ivy Bridge EP) (2/4S)</td><td>DesktopServer</td><td>LGA</td><td>2011</td><td>?</td><td>4.8–6.4 GT/s</td><td>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.</td></tr><tr><th><a href="/facts/RPGA_988B/GGXN6EBr">rPGA 988B</a>/<a href="/facts/Socket_G2/GGXN6EBr">Socket G2</a></th><td>2011</td><td>Intel Core i7Intel <a href="/facts/Core_i5/YYnBYKoR">Core i5</a>Intel <a href="/facts/Core_i3/WzEJtfJd">Core i3</a>(2000, 3000 series)</td><td>Notebook</td><td>rPGA</td><td>988</td><td>1</td><td>2.5 GT/s, 4.8 GT/s</td><td></td></tr><tr><th><a href="/facts/Socket_FM1/vrA6VVSD">Socket FM1</a></th><td>2011</td><td>AMD <a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Llano Processors</a></td><td>Desktop</td><td>PGA</td><td>905</td><td>1.27</td><td>5.2 GT/s</td><td>used for 1st generation APUs</td></tr><tr><th><a href="/facts/Socket_FS1/GGxHBYCC">Socket FS1</a></th><td>2011</td><td>AMD Llano Processors</td><td>Notebook</td><td>PGA</td><td>722</td><td>1.27</td><td>3.2 GT/s</td><td>used for 1st generation Mobile APUs</td></tr><tr><th><a href="/facts/Socket_AM3%252B/C1LDyTfR">Socket AM3+</a></th><td>2011</td><td>AMD <a href="/facts/Bulldozer_(processor)/fUPzoGrd">FX Vishera</a>[<i>broken anchor</i>]AMD <a href="/facts/Bulldozer_(microarchitecture)/fUPzoGrd">FX Zambezi</a>AMD Phenom IIAMD <a href="/facts/Athlon_II/5HNz5k86">Athlon II</a>AMD Sempron</td><td>Desktop</td><td>PGA</td><td>942 (CPU 71pin)</td><td>1.27</td><td>3.2 GT/s</td><td></td></tr><tr><th><a href="/facts/LGA_1356/ezvvkpCs">LGA 1356</a>/<a href="/facts/Socket_B2/ezvvkpCs">Socket B2</a></th><td>2012</td><td>Intel Xeon (E5 1400 & 2400 series)</td><td>Server</td><td>LGA</td><td>1356</td><td>?</td><td>3.2–4.0 GT/s</td><td></td></tr><tr><th><a href="/facts/Socket_FM2/olCXfpAL">Socket FM2</a></th><td>2012</td><td>AMD <a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Trinity Processors</a></td><td>Desktop</td><td>PGA</td><td>904</td><td>1.27</td><td>?</td><td>used for 2nd generation APUs</td></tr><tr><th><a href="/facts/LGA_1150/q0d80IFn">LGA 1150</a>/<a href="/facts/Socket_H3/q0d80IFn">Socket H3</a></th><td>2013</td><td>Intel <a href="/facts/Haswell_(microarchitecture)/C19Wlzhm">Haswell</a> (4th gen)Intel <a href="/facts/Haswell_(microarchitecture)/C19Wlzhm">Haswell Refresh</a>Intel <a href="/facts/Broadwell_(microarchitecture)/32jqNWRS">Broadwell</a> (5th gen)</td><td>Desktop</td><td>LGA</td><td>1150</td><td>?</td><td>?</td><td>used for Intel's 4th generation (Haswell/Haswell Refresh), the handful of intel 5th generation processors</td></tr><tr><th><a href="/facts/RPGA_946B%2f947/bTkrkh3x">rPGA 946B/947</a>/<a href="/facts/Intel_Socket_G3/bTkrkh3x">Socket G3</a></th><td>2013</td><td>Intel <a href="/facts/Haswell_(microarchitecture)/C19Wlzhm">Haswell</a></td><td>Notebook</td><td>rPGA</td><td>946</td><td>1</td><td>5.0 GT/s</td><td></td></tr><tr><th><a href="/facts/Socket_FM2%252B/GQlcTMJW">Socket FM2+</a></th><td>2014</td><td>AMD <a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Kaveri</a>AMD <a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Godavari</a></td><td>Desktop</td><td>PGA</td><td>906</td><td>1.27</td><td>?</td><td>Compatible with <a href="/facts/AMD_APU/hdApEUQw">AMD APUs</a> such as "<a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Richland" and "Trinity</a>"</td></tr><tr><th><a href="/facts/Socket_AM1/43Q9guVD">Socket AM1</a></th><td>2014</td><td>AMD AthlonAMD Sempron</td><td>Desktop</td><td>PGA</td><td>721</td><td>1.27</td><td>?</td><td>Compatible with AMD APUs such as "<a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">Kabini</a>"</td></tr><tr><th><a href="/facts/LGA_2011-v3/wMWkCtCv">LGA 2011-v3</a></th><td>2014(August and September)</td><td><a href="/facts/Haswell-E/C19Wlzhm">Haswell-E</a><a href="/facts/Haswell-EP/j1M8Hp6D">Haswell-EP</a></td><td>Desktop</td><td>LGA</td><td>2011</td><td>?</td><td>Up to 68 GB/sec.Depends on DDR4 speed and channel count.</td><td>Up to 40 PCIe 3.0 lanes.Up to 4 memory Channels.</td></tr><tr><th><a href="/facts/LGA_1151/J5CfRmBm">LGA 1151</a>/<a href="/facts/Socket_H4/J5CfRmBm">Socket H4</a></th><td>2015</td><td>Intel <a href="/facts/Skylake_(microarchitecture)/qpcDcebM">Skylake</a> (6th gen)Intel <a href="/facts/Kaby_Lake_(microarchitecture)/DbfMWB0T">Kaby Lake</a> (7th gen)Intel <a href="/facts/Coffee_Lake_(microarchitecture)/oASqYsf2">Coffee Lake</a> (8th gen)Intel <a href="/facts/Coffee_Lake/oASqYsf2">Coffee Lake Refresh</a> (9th gen)</td><td>Desktop</td><td>LGA</td><td>1151</td><td>?</td><td>5 GT/s - 8 GT/s</td><td>used for Intel's 6th generation (Skylake), 7th generation (Kaby Lake), 8th generation (Coffee Lake) processors, and 9th generation (Coffee Lake Refresh) processors</td></tr><tr><th><a href="/facts/LGA_3647/wzexW0x5">LGA 3647</a></th><td>2016</td><td>Intel <a href="/facts/Xeon_Phi/Fv5dhyKc">Xeon Phi</a>Intel Skylake-SP</td><td>Server</td><td>LGA</td><td>3647</td><td>?</td><td>?</td><td>used for Intel's Xeon Phi x200 and Xeon Scalable processors</td></tr><tr><th><a href="/facts/Socket_AM4/MuNKCgeF">Socket AM4</a></th><td>2016</td><td><p>AMD Athlon <a href="/facts/List_of_AMD_Athlon_processors/sfqNLngw">Bristol Ridge</a>AMD Athlon <a href="/facts/List_of_AMD_Athlon_processors/sfqNLngw">Raven Ridge 14nm</a>AMD Athlon <a href="/facts/List_of_AMD_Athlon_processors/sfqNLngw">Picasso 12nm</a>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">1000 series</a>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">2000 series</a>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">3000 series</a>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">4000 series</a>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">5000 series</a></p></td><td>Desktop</td><td>PGA</td><td>1331</td><td>1</td><td>Depends on DDR4 speed</td><td>compatible with AMD <a href="/facts/Ryzen/0hKNcAra">Ryzen</a> 9, Ryzen 7, Ryzen 5 & Ryzen 3 Zen based processors</td></tr><tr><th><a href="/facts/Socket_SP3/2SCApC28">Socket SP3</a></th><td>2017</td><td>AMD Epyc <a href="/facts/Epyc/5d30N0BK">Naples</a> AMD Epyc <a href="/facts/Epyc/5d30N0BK">Rome</a> AMD Epyc <a href="/facts/Epyc/5d30N0BK">Milan</a></td><td>Server</td><td>LGA</td><td>4094</td><td>?</td><td>Depends on DDR4 speed</td><td>compatible with AMD Epyc processors</td></tr><tr><th><a href="/facts/Socket_TR4/ETTnjzH3">Socket TR4</a>/Socket SP3r2</th><td>2017</td><td>AMD Ryzen Threadripper (<a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">1000 series</a>)AMD Ryzen Threadripper (<a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">2000 series</a>)</td><td>Desktop</td><td>LGA</td><td>4094</td><td>?</td><td>Depends on DDR4 speed</td><td>compatible with AMD Ryzen Threadripper processors</td></tr><tr><th><a href="/facts/LGA_2066/cM7fJjMm">LGA 2066</a>/<a href="/facts/Socket_R4/cM7fJjMm">Socket R4</a></th><td>2017</td><td>Intel Skylake-XIntel Kaby Lake-XIntel Cascade Lake-X</td><td>DesktopServer</td><td>LGA</td><td>2066</td><td>?</td><td>?</td><td>Used for Intel's 7th generation (Skylake-X & Kaby Lake-X & Cascade Lake-X) series of Core-X processors</td></tr><tr><th><a href="/facts/Socket_sTRX4/hsgLh0Y6">Socket sTRX4</a>/Socket SP3r3</th><td>2019</td><td>AMD Ryzen Threadripper (<a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">3000 series</a>)</td><td>Desktop</td><td>LGA</td><td>4094</td><td>?</td><td>Depends on DDR4 speed</td><td>compatible with 3rd generation AMD Ryzen Threadripper processors</td></tr><tr><th><a href="/facts/LGA_4189/Y1mhaKE4">LGA 4189</a></th><td>2020</td><td>Intel <a href="/facts/Cooper_Lake_(microprocessor)/pbCphweG">Cooper Lake</a>Intel <a href="/facts/Ice_Lake_(microprocessor)/ezzrBUW5">Ice Lake-SP</a></td><td>DesktopServer</td><td>LGA</td><td>4189<a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a></td><td>0.99<a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a></td><td></td><td></td></tr><tr><th><a href="/facts/LGA_1200/o9XtMlua">LGA 1200</a></th><td>2020</td><td>Intel <a href="/facts/Comet_Lake/VcfpgHA5">Comet Lake</a> (10th gen)Intel <a href="/facts/Rocket_Lake/e9xcN1Yk">Rocket Lake</a> (11th gen)</td><td>Desktop</td><td>LGA</td><td>1200</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/LGA_1700/gfIt6d2C">LGA 1700</a></th><td>2021</td><td>Intel <a href="/facts/Alder_Lake/q7rtppRT">Alder Lake</a> (12th gen)Intel <a href="/facts/Raptor_Lake/d7Hd6KbC">Raptor Lake</a> (13th gen)<p>Intel Raptor Lake (14th gen)</p></td><td>Desktop</td><td>LGA</td><td>1700</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/Socket_sWRX8/Ql0svqLV">Socket sWRX8</a></th><td>2022</td><td>AMD Ryzen Threadripper Pro (<a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">5000 series</a>)</td><td>Desktop</td><td>LGA</td><td>4094</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/Socket_AM5/x4zuI5Ck">Socket AM5</a></th><td>2022</td><td>AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">7000 series</a> AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">8000 series</a> (APU)AMD Ryzen <a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">9000 series</a></td><td>Desktop</td><td>LGA</td><td>1718</td><td></td><td></td><td>Zen 4 Ryzen CPUs</td></tr><tr><th><a href="/facts/Socket_SP5/4UztD10K">Socket SP5</a></th><td>2022</td><td>AMD <a href="/facts/Epyc/5d30N0BK"> Epyc Genoa</a></td><td>Server</td><td>LGA</td><td>6096</td><td></td><td></td><td>Used for Epyc Genoa and Milan</td></tr><tr><th><a href="/facts/LGA_4677/2VrtxNUF">LGA 4677</a></th><td>2022</td><td>Intel <a href="/facts/Sapphire_Rapids_(microprocessor)/WJsEwyru">Sapphire Rapids</a></td><td>Server</td><td>LGA</td><td>4677</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/Socket_SP6/AoxIJ7bT">Socket SP6</a></th><td>2023</td><td>AMD <a href="/facts/Epyc/5d30N0BK"> Epyc Siena</a></td><td>Server</td><td>LGA</td><td>4844</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/Socket_sTR5/tJXry3wP">Socket sTR5</a></th><td>2023</td><td>AMD Ryzen Threadripper AMD Ryzen Threadripper Pro (<a href="/facts/List_of_AMD_Ryzen_processors/tUl7QggV">7000 series</a>)</td><td>Desktop</td><td>LGA</td><td>4844</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/LGA_1851/kBoqbPtl">LGA 1851</a></th><td>2024</td><td>Intel <a href="/facts/Meteor_Lake/6kounHDU">Meteor Lake</a>-PS (Core Ultra Series 1)Intel <a href="/facts/Arrow_Lake_(microprocessor)/AFTvbCBU">Arrow Lake</a> (Core Ultra 200S Series)TBA</td><td>Desktop</td><td>LGA</td><td>1851</td><td></td><td></td><td></td></tr><tr><th><a href="/facts/LGA_7529/ruI54cg9">LGA 7529</a></th><td>2024</td><td>Intel <a href="/facts/Sierra_Forest/JfatfXS4">Sierra Forest</a></td><td>Server</td><td>LGA</td><td>7529</td><td></td><td></td><td></td></tr><tr><th>Socketname</th><th>Year of introduction</th><th>CPU families supported</th><th>Computer type</th><th>Package</th><th>Pin count</th><th>Pin pitch(mm)</th><th>Bus <a href="/facts/Clock_rate/w055Woaj">clock</a> &<a href="/facts/Transfer_(computing)/fgBCc5U9">transfers</a></th><th>Notes</th></tr></tbody></table> <h3>Other <a href="/facts/Instruction_set_architecture/8p8vwUeE">ISAs</a></h3> <table><tbody><tr><th>Socketname</th><th>Year of introduction</th><th>CPU families supported</th><th>Computer type</th><th>Package</th><th>Pin count</th><th>Pin pitch(mm)</th><th>Bus <a href="/facts/Clock_rate/w055Woaj">clock</a> &<a href="/facts/Transfer_(computing)/fgBCc5U9">transfers</a></th><th>Notes</th></tr><tr><th>Daughter Card</th><td>1995</td><td>PowerPC 601+</td><td>Desktop</td><td>Slot</td><td>146</td><td>?</td><td>40-60 Hz</td><td></td></tr><tr><th>Socket 288</th><td>?</td><td>PowerPC 603+</td><td>Desktop</td><td>PGA</td><td>288</td><td>?</td><td>40-60 Hz</td><td></td></tr><tr><th>Socket 431</th><td>1995</td><td><a href="/facts/DEC_Alpha/4eN7LuXG">Alpha</a> <a href="/facts/Alpha_21064/BlTYh5ad">21064</a>/<a href="/facts/Alpha_21064/BlTYh5ad">21064A</a></td><td>Desktop</td><td>PGA</td><td>431</td><td>?</td><td>12.5–66.67 MHz</td><td></td></tr><tr><th>Socket 499</th><td>1997</td><td>Alpha <a href="/facts/Alpha_21164/2EE1krYp">21164</a>/<a href="/facts/Alpha_21164/2EE1krYp">21164A</a></td><td>Desktop</td><td>PGA</td><td>499</td><td>?</td><td>15–100 MHz</td><td></td></tr><tr><th>Socket 587</th><td>1998</td><td>Alpha <a href="/facts/Alpha_21264/lVKS3c4I">21264</a></td><td>Desktop</td><td>PGA</td><td>587</td><td>?</td><td>12.5–133 MHz</td><td></td></tr><tr><th>Slot B</th><td>1999</td><td>Alpha <a href="/facts/Alpha_21264/lVKS3c4I">21264</a>/<a href="/facts/Alpha_21264/lVKS3c4I">21264A</a></td><td>Desktop</td><td>Slot</td><td>587</td><td>?</td><td>100 MHz<a class="footnote-ref" id="fnref:24" href="#fn:24"><sup>24</sup></a></td><td></td></tr><tr><th><a href="/facts/PAC418/sSgqBBKt">PAC418</a></th><td>2001</td><td>Intel <a href="/facts/Itanium/0wkjSDpe">Itanium</a></td><td>Server</td><td>PGA</td><td>418</td><td>?</td><td>133 MHz</td><td></td></tr><tr><th><a href="/facts/PAC611/A8Hvlcgu">PAC611</a></th><td>2002</td><td>Intel <a href="/facts/Itanium_2/0wkjSDpe">Itanium 2</a><a href="/facts/Hewlett-Packard/abuNSYNu">HP</a> <a href="/facts/PA-8800/f5sE1Izr">PA-8800</a>, <a href="/facts/PA-8900/f5sE1Izr">PA-8900</a></td><td>Server</td><td>PGA</td><td>611</td><td>?</td><td>200 MHz</td><td></td></tr><tr><th><a href="/facts/LGA_1248/TgVgVHXx">LGA 1248</a></th><td>2010</td><td>Intel <a href="/facts/Itanium/0wkjSDpe">Itanium 9300-series</a> and up</td><td>Server</td><td>LGA</td><td>1248</td><td>?</td><td>4.8-6.4 GT/s</td><td></td></tr><tr><th>Socketname</th><th>Year of introduction</th><th>CPU families supported</th><th>Computer type</th><th>Package</th><th>Pin count</th><th>Pin pitch(mm)</th><th>Bus <a href="/facts/Clock_rate/w055Woaj">clock</a> &<a href="/facts/Transfer_(computing)/fgBCc5U9">transfers</a></th><th>Notes</th></tr></tbody></table> <h2 id="slotkets">Slotkets</h2> <p><a href="/facts/Slotket/oxJVrSGg">Slotkets</a> are special adapters for using socket processors in bus-compatible slot motherboards. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/List_of_AMD_processors/0GUoJBDs">List of AMD processors</a></li> <li><a href="/facts/List_of_Intel_processors/gBqeUglP">List of Intel processors</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.cpushack.net/SocketID.html">Socket ID Guide up to 2005</a></li> <li><a href="http://pclinks.xtreemhost.com/">CPU Sockets Chart</a> - A fairly detailed table listing x86 Sockets and associated attributes.</li> <li><a href="http://www.techpowerup.com/cpudb/">techPowerUp! CPU Database</a></li> <li><a href="http://www.cpu-world.com/Sockets/index.html">Processor sockets</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Some late model Socket 3 motherboards unofficially supported FSB speeds up to 66MHz <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Intel 815 Chipset Family" (PDF). Intel. Retrieved May 4, 2009. <a href="http://www.intel.com/design/chipsets/designex/29071401.pdf" target="_blank">http://www.intel.com/design/chipsets/designex/29071401.pdf</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>This is a double data rate bus. FSB in the later models. <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"423 Pin Socket (PGA423) Design Guidelines" (PDF). Intel. Archived (PDF) from the original on December 29, 2009. Retrieved May 3, 2009. <a href="http://download.intel.com/design/Pentium4/guides/24920701.pdf" target="_blank">http://download.intel.com/design/Pentium4/guides/24920701.pdf</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"495-Pin and 615-pin micro-PGA ZIF Socket Design Specification Application Note" (PDF). Intel. Retrieved May 3, 2009. <a href="http://download.intel.com/design/mobile/applnots/24528401.pdf" target="_blank">http://download.intel.com/design/mobile/applnots/24528401.pdf</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"mPGA 604 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 3, 2009. <a href="http://www.intel.com/Assets/PDF/designguide/254239.pdf" target="_blank">http://www.intel.com/Assets/PDF/designguide/254239.pdf</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"Intel Pentium 4 Processor 478-Pin Socket (mPGA478) Design Guidelines" (PDF). Intel. Retrieved May 3, 2009. <a href="http://download.intel.com/design/Pentium4/guides/24989002.pdf" target="_blank">http://download.intel.com/design/Pentium4/guides/24989002.pdf</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"mPGA 604 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 3, 2009. <a href="http://www.intel.com/Assets/PDF/designguide/254239.pdf" target="_blank">http://www.intel.com/Assets/PDF/designguide/254239.pdf</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"AMD Sempron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31805.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31805.pdf</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"AMD Opteron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>CPU only has 478 pins, but the socket has 479. <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>"AMD Opteron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"LGA 775 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 4, 2009. <a href="http://www.intel.com/Assets/PDF/designguide/302666.pdf" target="_blank">http://www.intel.com/Assets/PDF/designguide/302666.pdf</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"LGA771 Socket Mechanical Design Guide" (PDF). Intel. Retrieved May 3, 2009. <a href="http://www.intel.com/Assets/PDF/designguide/313871.pdf" target="_blank">http://www.intel.com/Assets/PDF/designguide/313871.pdf</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"Low-Profile Socket S1 Design Specification" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31839.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31839.pdf</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"AMD Opteron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"Thermal Design Guide for Socket F (1207) Processors" (PDF). AMD. Retrieved May 6, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32800.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32800.pdf</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"AMD Opteron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>CPU only has 938 pins, but the socket has 941. <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>AMD Documentation "Socket AM3 design Specification" (PDF). AMD. Retrieved January 5, 2012. <a href="http://support.amd.com/us/Processor_TechDocs/40523.pdf" target="_blank">http://support.amd.com/us/Processor_TechDocs/40523.pdf</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"AMD Opteron Processor Product Data Sheet" (PDF). AMD. Retrieved May 3, 2009. <a href="https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf" target="_blank">https://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23932.pdf</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>"LGA 4189 Socket and Hardware" (PDF). <a href="https://www.mouser.com/pdfDocs/LGA4189.pdf" target="_blank">https://www.mouser.com/pdfDocs/LGA4189.pdf</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> <li id="fn:23"><p>"LGA 4189 Socket and Hardware" (PDF). <a href="https://www.mouser.com/pdfDocs/LGA4189.pdf" target="_blank">https://www.mouser.com/pdfDocs/LGA4189.pdf</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></p></li> <li id="fn:24"><p>Hachman, Mark (February 2, 1999). "Alpha camp moves to "Slot B" connector to push further into workstations". EE Times. Retrieved November 10, 2022. <a href="https://www.eetimes.com/document.asp?doc_id=1120882" target="_blank">https://www.eetimes.com/document.asp?doc_id=1120882</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></p></li> </ol>