LGA 1700 explained

LGA 1700
Designed-By:Intel
Manufacturer:Lotes
Formfactors:Flip-chip
Contacts:1700
Protocol:PCI Express 5.0
Direct Media Interface
Dimensions:37.5 mm × 45 mm
1,687.5mm2
Predecessor:LGA 1200
Successor:LGA 1851

LGA 1700 (Socket V) is a zero insertion force flip-chip land grid array (LGA) socket, compatible with Intel desktop processors Alder Lake and Raptor Lake, which was first released in November 2021.

LGA 1700 is designed as a replacement for LGA 1200 (known as Socket H5) and it has 1700 protruding pins to make contact with the pads on the processor. Compared to its predecessor, it has 500 more pins, which required a major change in socket and processor sizes; it is 7.5 mm longer. It is the first major change in Intel's LGA desktop CPU socket size since the introduction of LGA 775 in 2004, especially for consumer-grade CPU sockets. The larger size also required a change in the heatsink fastening holes configuration, making previously used cooling solutions incompatible with LGA 1700 motherboards and CPUs.[1]

Heatsink design

Since the introduction of land grid array (LGA)-based sockets in the consumer hardware space in 2004,[2] the thermal solution hole pattern (the distance between centers of the screw-holes for the heatsink) has changed three times for Intel's mainstream platforms:

While some motherboards do offer additional mounting holes for using older coolers, e.g. for using an LGA115x cooler on an LGA1700 motherboard, differences in Z-height and the mounting pressure will result in worse than expected cooling performance. For best results it is recommended to either change the cooling solution to a model certified for this platform or request an updated mounting-kit[3] [4] [5] for one of the higher-end solutions on the market. For heatsinks to be interchangeable, not only the hole pattern, but also the socket seating plane height, the maximum thermal solution center of gravity height from the IHS and the static total compressive minimum need to match.

Issues

Even though some CPU cooler manufacturers are providing adapter kits (usually in the form of different screws) to go with existing LGA115x and LGA1200 retention brackets, there have been reports of the CPU bending or bowing due to uneven mounting pressure from the LGA 1700 integrated loading mechanism (ILM). This leads to the CPU having reduced contact with the cooler plate, which in turn leads to increased temperatures.[6] LGA 1700 contact frames to replace the stock ILM have been released by Thermal Grizzly and Thermalright to ensure even CPU mounting pressure and cooler contact.[7] [8]

Maximum RAM

Initially motherboards based on Alder Lake and Raptor Lake chipsets supported 32 GB memory modules but most known OEMs in 2023 updated BIOS'es to support 48 GB modules and in December 2023 support for 64 GB modules started to roll out first by MSI and ASRock.[9] [10] Users are advised to consult with their motherboards web support pages to check what memory modules can be installed.

Alder Lake chipsets (600 series)

H610[11] B660[12] H670[13] Q670[14] Z690[15] W680[16]
Overclockingcolspan="2"
Bus interfaceDMI 4.0 ×4DMI 4.0 ×8
CPU supportAlder Lake
Raptor Lake (a BIOS update may be required)
Memory capacityUp to 64/128 GBUp to 128/256 GBUp to 128/256 GB with ECC
Maximum DIMM slots24
Maximum USB 2.0 ports101214
USB 3.2 ports configurationUp to 4Up to 6Up to 8Up to 10
Gen 2Up to 2Up to 4Up to 8Up to 10
Up to 2Up to 4
Maximum SATA 3.0 ports48
Processor PCI Express configuration5.01×16 1×16 or 2×8
4.01×4
PCH PCI Express configuration4.0612
3.081216
Independent display support (digital ports/pipes)34
Integrated wirelesscolspan="6"
PCIe RAID supportcolspan="4"
SATA RAID supportcolspan="5"
Intel Optane memory supportcolspan="5"
Intel Smart Sound[17] technologycolspan="6"
Intel Active Management, Trusted Execution and vPro technology
Chipset TDP6 W
Release dateQ1 2022Q4 2021Q2 2022

Raptor Lake chipsets (700 series)

B760[18] H770[19] Z790[20]
Overclocking
Bus InterfaceDMI 4.0 ×4DMI 4.0 ×8
CPU supportAlder Lake and Raptor Lake
Memory capacityUp to 128/256 GB
Maximum DIMM slots4
Maximum USB 2.0 ports1214
USB 3.2 ports configurationUp to 6Up to 8Up to 10
Gen 2Up to 4Up to 10
Up to 2Up to 5
Maximum SATA 3.0 ports48
Processor PCI Express configuration5.01x161×16 or 2×8
4.0 (for M.2)1x4
PCH PCI Express configuration4.0101620
3.048
Independent display support (digital ports/pipes)4
Integrated wirelesscolspan="3"
PCIe RAID supportcolspan="2"
SATA RAID supportcolspan="3"
Intel Optane memory supportcolspan="3"
Intel Smart Sound technologycolspan="3"
Intel Active Management, Trusted Execution and vPro technologycolspan="3"
Chipset TDP6 W
Release dateQ1 2023Q4 2022

See also

Notes and References

  1. Web site: Shilov . Anton . April 9, 2021 . Keep Your Cool(er): Noctua Confirms Intel Alder Lake CPU Support . Tom's Hardware . September 20, 2021.
  2. Web site: Shimpi . Anand Lal . June 21, 2004 . Intel's 925X & LGA-775: Are Prescott 3.6 and PCI Express Graphics any Faster? . AnandTech . November 12, 2022.
  3. Web site: Noctua Announces Free-of-charge Mounting Upgrades and Updated CPU Coolers for LGA1700 . TechPowerUp . August 17, 2021 . October 19, 2022.
  4. Web site: Cooler Master Announces Free Mounting Upgrades for LGA1700 Release . TechPowerUp . November 4, 2021 . October 19, 2022.
  5. Web site: Skrobisch . Stephan . September 29, 2021 . be quiet! macht seine CPU-Kühler fit für den Socket LGA1700 . be quiet! makes their CPU coolers fit for Socket LGA1700 . Hardware Luxx . de . October 19, 2022.
  6. Web site: Wallossek . Igor . December 8, 2021 . Cooling issues with Intel's Alder Lake – Problems with the LGA-1700 socket and a possible workaround . Igor's Lab . December 11, 2021.
  7. Web site: Norem . Josh . June 1, 2022 . Thermal Grizzly Launches Alder Lake 'Contract Frame' to Help Reduce Temps . ExtremeTech . November 12, 2022.
  8. Web site: Thermalright launches Bending Corrector Frame for Alder Lake processors . VideoCardz . April 21, 2022 . November 12, 2022.
  9. News: btarunr . 2023-12-18 . ASRock Adds 256GB Max Memory and 64GB DIMM Support to its AMD AM5 and Intel 700-series Motherboards . TechPowerUp .
  10. News: btarunr . 2023-12-15 . MSI Motherboards Unleash Extreme Power with Memory Capacity Boosted To 256GB . TechPowerUp .
  11. Web site: Product Specifications. www.intel.com.
  12. Web site: Product Specifications. www.intel.com.
  13. Web site: Product Specifications. www.intel.com.
  14. https://ark.intel.com/content/www/us/en/ark/products/218827/intel-q670-chipset.html Intel® Q670 Chipset
  15. Web site: Product Specifications. www.intel.com.
  16. https://ark.intel.com/content/www/us/en/ark/products/218834/intel-w680-chipset.html Intel® W680 Chipset
  17. https://www.intel.com/content/www/us/en/architecture-and-technology/smart-sound-technology.html Smart sound technology
  18. Web site: Product Specifications. www.intel.com.
  19. Web site: Product Specifications. www.intel.com.
  20. Web site: Product Specifications. www.intel.com.