Socket AM4

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Socket AM4
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Designed byAMD
Manufactured byLotes, Foxconn
TypeLGA-ZIF
Chip form factorsFlip-chip
Contacts1331
FSB protocolInfinity Fabric, PCI Express
Voltage range1.3V
Processor dimensions40 mm × 40 mm
1,600 mm²
ProcessorsRyzen:Page Template:Plainlist/styles.css has no content.
Athlon:Page Template:Plainlist/styles.css has no content.
  • Raven Ridge
  • Picasso
A-Series, Athlon X4:Page Template:Plainlist/styles.css has no content.
PredecessorAM3+, FM2+, AM1
SuccessorAM5
Memory supportDDR4
This article is part of the CPU socket series

Socket AM4 (LGA 1331) is a LGA microprocessor socket used by AMD's central processing units (CPUs) built on the Zen (including Zen+, Zen 2 and Zen 3) and Excavator microarchitectures.[1][2]

AM4 was launched in September 2016 and was designed to replace the sockets AM3+, FM2+ and FS1b as a single platform. It has 1331 pin slots and is the first from AMD to support DDR4 memory as well as achieve unified compatibility between high-end CPUs (previously using Socket AM3+) and AMD's lower-end APUs (on various other sockets).[3][4] In 2017, AMD made a commitment to using the AM4 platform with socket 1331 until 2020.[5][6][7] AM5 succeeded the AM4 platform in late 2022 with the introduction of the Ryzen 7000 series, but, nonetheless, AMD has continued to release new CPUs for AM4 even after the release of AM5.[8][9][10][11]

Features

The X370 chipset supports multiple graphics cards. But the number of available PCIe lanes depends on the CPU/APU.

Heatsink

The AM4 socket specifies the four holes for fastening the heatsink to the motherboard to be placed in the corners of a rectangle with a lateral length of 54×90 mm. Previous sockets have 48×96 mm.

Some heat sinks for older sockets are not compatible.[14][15] Some cooler manufacturers, however, are reported to be offering brackets allowing previously manufactured coolers to work with AM4,[16] while other coolers will be redesigned.[17][18] Alternatively, some motherboard makers are including both AM3 and AM4 cooler mounting holes, allowing previous generation coolers to be used.[19] AM4 coolers that use a two-pronged bracket approach (such as the AMD Wraith Prism) to mount the cooler will work with AM4 and all the way back to Socket 754/939.

Chipsets

Socket AM4 is currently a base for 8 chipset models. While the processors for this socket have been designed as systems in a package (SiP), with the traditional northbridge and southbridge on board the processor, the motherboard chipset will increase the number of PCI Express lanes and other connectivity options. These connectivity options include: NVMe, SATA, and USB 3.2 Gen 2.[2][18][20] There also exists chipset-less variations of A320 and X370, called A300 and X300 respectively, that rely solely on the I/O die integrated into the CPU; these platforms are designed solely for small form factor (SFF) systems where there is a possibility that there is not enough space on the board to fit an actual chipset; these 'chipsets' are also solely available for OEM use only and are not available for purchase with SFF boards.[2][18][21] Template:AM4 chipsets

Compatibility

In 2020, AMD faced some criticism when it was announced on May 7 that its Zen 3-based Ryzen 5000 microprocessors would only be compatible with newer 500-series chipset AM4 motherboards.[22][23][24] This was explained as motherboard BIOS's sizes not being large enough to support the full range of AM4 socket processors.[22][24] This had upset some of the user base as, described by AnandTech, they "...had assumed that this meant any AM4 platform based motherboard would be able to accept all processor made from 2016 to 2020, including the new Zen 3...".[24] After the announcement some motherboard manufacturers announced they were planning to add in support for Zen 3 processors via BIOS updates.[22][25]

On 19 May 2020, however, AMD changed its position and stated that Zen 3 would be coming to selected older X470 and B450 motherboards via a BIOS update.[26] This would be achieved by disabling support for some older AM4 processors in the BIOS ROM in order to allocate space to support the newer processors.[26][27][24]

On 12 November 2021, according to TechPowerUp, ASUS and Gigabyte were the few vendors that allowed Ryzen 5000 on A320 motherboard, and according to Tom's Hardware, it was done by removing support for AMD's 7th Generation A-series and Athlon X4 series (Bristol Ridge) processors.[28][29] AMD later officially expanded Ryzen 5000 support to 300-series motherboards in March 2022.[30][31]

See also

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content.Tyson, Mark (September 5, 2016). "7th Generation AMD A-Series desktop PC systems start to ship". Hexus. Retrieved September 5, 2016.
  2. ^ a b c Page Module:Citation/CS1/styles.css has no content.Ung, Gordon (September 5, 2016). "AMD's new Bristol Ridge processor is faster and more power efficient". PCWorld. Retrieved September 5, 2016.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Smith, Ryan (May 6, 2015). "AMD's 2016-2017 x86 Roadmap: Zen Is In, Skybridge Is Out". AnandTech. Archived from the original on May 7, 2015. Retrieved June 19, 2015.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Mujtaba, Hassan (May 7, 2015). "AMD Confirms x86 Zen Based Enthusiast FX CPUs and 7th Generation APUs in 2016 - Compatible With AM4 Socket". Wccftech. Retrieved September 16, 2016.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Bright, Peter (March 2, 2017). "AMD's moment of Zen: Finally, an architecture that can compete". Ars Technica. Retrieved May 18, 2020.
  6. ^ Page Module:Citation/CS1/styles.css has no content.Leather, Antony (March 9, 2018). "More AMD CPU Leaks Revealed: Ryzen 2nd Gen Details Plus AM4 And TR4 Socket Life Confirmed?". Forbes. Retrieved May 18, 2020.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Campbell, Mark (April 21, 2018). "AMD reaffirms commitment to AM4 socket until 2020". Overclock3D. Retrieved May 19, 2020.
  8. ^ Page Module:Citation/CS1/styles.css has no content."AMD Ryzen 5 5600X3D Review". PCMAG. Retrieved 2024-01-08.
  9. ^ Page Module:Citation/CS1/styles.css has no content.Cunningham, Andrew (2024-01-08). "AMD releases even more Ryzen 5000 CPUs, keeps its last-gen AM4 platform alive". Ars Technica. Retrieved 2024-01-08.
  10. ^ Page Module:Citation/CS1/styles.css has no content.Bonshor, Gavin. "AMD Announces New Desktop Zen 3 Chips With 2 New APUs and the Ryzen 7 5700X3D". www.anandtech.com. Archived from the original on January 8, 2024. Retrieved 2024-01-08.
  11. ^ Page Module:Citation/CS1/styles.css has no content.Crider, Michael. "AMD talks AM5 APUs and AM4 longevity". PCWorld. Retrieved 2024-01-23.
  12. ^ a b Page Module:Citation/CS1/styles.css has no content.Moammer, Khalid (September 16, 2016). "AMD Zen CPU & AM4 Socket Pictured – PGA Design With 1331 Pins Confirmed". Wccftech. Retrieved September 16, 2016.
  13. ^ Page Module:Citation/CS1/styles.css has no content.Maiorino, Erin (May 26, 2019). "The Industry Leading AMD AM4 X570 Chipset". AMD. Retrieved June 10, 2019.
  14. ^ Page Module:Citation/CS1/styles.css has no content.Peak, Sebastian (September 19, 2016). "AMD's Upcoming Socket AM4 Pictured with 1331 Pins". PC Perspective. Retrieved September 21, 2016.
  15. ^ Page Module:Citation/CS1/styles.css has no content.Peak, Sebastian (May 25, 2016). "Report: AMD Socket AM4 Compatible with Existing AM2/AM3 Coolers". PC Perspective. Retrieved November 10, 2022.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Killian, Zak (January 25, 2017). "CPU heatsink makers ready up Socket AM4 mounting kits". Tech Report. Retrieved 25 January 2017.
  17. ^ Page Module:Citation/CS1/styles.css has no content.Chacos, Brad (January 4, 2016). "AMD reveals an army of Ryzen PCs and AM4 motherboards". PCWorld. Retrieved January 10, 2017.
  18. ^ a b c Page Module:Citation/CS1/styles.css has no content.Walrath, Josh (January 7, 2016). "AMD Details AM4 Chipsets and Upcoming Motherboards". PC Perspective. Retrieved 10 January 2017.
  19. ^ Page Module:Citation/CS1/styles.css has no content.Cutress, Ian (March 2, 2017). "The AMD Zen and Ryzen 7 Review". AnandTech. Archived from the original on March 2, 2017. Retrieved March 2, 2017.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Cutress, Ian (December 13, 2016). "AMD Gives More Zen Details". AnandTech. Archived from the original on December 14, 2016. Retrieved 13 December 2016.
  21. ^ Page Module:Citation/CS1/styles.css has no content."Socket AM4 Chipset". AMD. Archived from the original on 2023-01-07. Retrieved March 3, 2023.
  22. ^ a b c Page Module:Citation/CS1/styles.css has no content.Mujtaba, Hassan (May 7, 2020). "AMD Ryzen 4000 'Zen 3' CPUs Compatible With X570 & B550 Chipset". Wccftech. Retrieved May 18, 2020.
  23. ^ Page Module:Citation/CS1/styles.css has no content.Hallock, Robert (May 7, 2020). "The Exciting Future of AMD Socket AM4 | Community". AMD. Retrieved 19 May 2020.
  24. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Cutress, Ian (May 19, 2020). "AMD to Support Zen 3 and Ryzen 4000 CPUs on B450 and X470 Motherboards". AnandTech. Archived from the original on May 19, 2020. Retrieved May 19, 2020.
  25. ^ Page Module:Citation/CS1/styles.css has no content.Mujtaba, Hassan (April 16, 2020). "AMD Zen 3 Ryzen 4000 'Vermeer' Desktop CPUs Will Be Compatible With Existing AM4 Boards". Wccftech. Retrieved May 18, 2020.
  26. ^ a b Page Module:Citation/CS1/styles.css has no content.u/AMDOfficial (May 19, 2020). "The "Zen 3" Architecture is Coming to AMD X470 and B450". Reddit. Retrieved May 19, 2020.
  27. ^ Page Module:Citation/CS1/styles.css has no content.Tyson, Mark (May 19, 2020). "AMD "decided to change course" with Zen 3 B450/X470 support". Hexus. Retrieved May 19, 2020.
  28. ^ Page Module:Citation/CS1/styles.css has no content.AleksandarK Discuss (November 12, 2021). "ASUS and GIGABYTE Enable AMD Ryzen 5000 Series Processor Support on A320 Chipsets". TechPowerUp. Retrieved November 16, 2021.
  29. ^ Page Module:Citation/CS1/styles.css has no content.Liu, Zhiye (November 12, 2021). "Ryzen 5000 Support Finally Enabled On A320 Motherboards". Tom's Hardware. Retrieved November 16, 2021.
  30. ^ Page Module:Citation/CS1/styles.css has no content.Subramaniam, Vaidyanathan (15 March 2022). "AMD bids adieu to socket AM4 by extending Ryzen 5000 Zen 3 support to all 300-series AM4 motherboards including the A320 chipset". notebookcheck.net. Retrieved 26 April 2024.
  31. ^ Page Module:Citation/CS1/styles.css has no content.Sen, Sayan (15 March 2022). "Long live Socket AM4! AMD officially expands Ryzen 5000 CPU support to 300 series boards". Neowin. Retrieved 26 April 2024.

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