socket SP3

{{Short description|CPU socket for AMD CPUs}}

{{Use American English|date=November 2022}}

{{Use mdy dates|date=November 2022}}

{{CPU socket

| name = Socket SP3

| image = 250px

| imagesize =

| release-date = {{Start date|2017|06|20}}

| designed-by = AMD

| manufacturer = {{ubl |Lotes |Foxconn}}

| type = LGA-ZIF

| formfactors = Flip-chip

| contacts = 4094

| protocol = PCI Express, Infinity Fabric

| fsb =

| voltage = 1.8V (Threadripper)
1.3V (EPYC)

| dimensions = 58.5mm x 75.4mm
4410.9 mm²

| processors = Epyc:{{Plainlist|

:* Naples

:* Rome

:* Milan}}

| predecessor = {{ubl |Socket C32 |Socket G34}}

| successor = {{ubl |Socket SP5 |Socket SP6}}

| memory = ECC DDR4

}}

File:Amd epyc 7302 socket sp3 IMGP3493 smial wp.jpg

Socket SP3 is a zero insertion force land grid array CPU socket designed by AMD supporting its Zen-, Zen 2- and Zen 3-based Epyc server processors,{{Cite web |last=Ung |first=Gordon |date=May 30, 2017 |title=AMD's 'TR4' Threadripper CPU socket is gigantic |url=http://www.pcworld.com/article/3198924/computers/amds-tr4-threadripper-cpu-socket-is-gigantic.html |website=PCWorld |language=en-US |access-date=November 16, 2022}}{{Cite web |last=Campbell |first=Mark |date=May 29, 2017 |title=Noctua showcase EPYC/Threadripper Ready TR4/SP3 ready CPU coolers |url=https://www.overclock3d.net/news/cases_cooling/noctua_showcase_epyc_threadripper_ready_tr4_sp3_ready_cpu_coolers/1 |website=Overclock3D |language=en-GB |access-date=November 16, 2022}} launched on June 20, 2017.{{Cite web |last=Smith |first=Ryan |date=May 30, 2017 |title=Home>CPUs AMD CPU Updates: 16 Core ThreadRipper w/64 PCIe Lanes This Summer, Epyc Launching June 20th |url=http://www.anandtech.com/show/11482/amd-cpu-updates-threadripper-64-pcie-lanes-epyc-june-20th |website=AnandTech |language=en-US |access-date=November 16, 2022}} Because the socket is physically the same size as socket TR4 and socket sTRX4, users can use CPU coolers not only designed for SP3, but also coolers designed for TR4 and sTRX4.

Socket SP3 is a system in a package socket - that means most features required to make the system fully functional (such as memory, PCI Express, SATA controllers etc.) are fully integrated into the processor package, eliminating the need for a chipset to be placed on a motherboard. Variants for desktop platforms (as said below) are, eventually, requiring an additional chipset to unlock the functionality of the CPU. A processor using socket SP3 is mounted by inserting the CPU into a slide and fixing the slide assembly by tightening three screws using the torque wrenches normally provided alongside the motherboard. Automated processor mounting tools in OEMs do not use the slide, instead relying upon the precision movement of the robot arm.