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Intel's Arrow Lake-S and Meteor Lake-S processors will require new motherboards with LGA 1851

Intel's Arrow Lake-S and Meteor Lake-S processors will require new motherboards with LGA 1851

Intel will release Raptor Lake-S processors in the second half of the year, which, while bringing evolutionary improvements over Alder Lake-S, will remain compatible with the LGA 1700 socket.
Informed sources report that their successors will be offered in the new LGA 1851 design, which implies the use of new motherboards.
Picture source: BenchLife.infoSpeaking statements are the Chinese site BenchLife.info, which has repeatedly confirmed the correctness of their predictions.
The information distributed recently by a popular You-Tube channel about Intel's intentions to move processors to run with 2551 pins turned out to be only partly true.
The fact is that the Arrow Lake and Meteor Lake desktop processors will be available in LGA 1851 version, while the Intel plans to move to Intel's version with 2551 pins, which will surely be combined with BGA mounting type and used in mobile segment.
According to a Chinese source, the LGA 1851 CPU will retain the length and width of its predecessor in the LGA 1700 design (37.5 x 45 mm), but its mounting height relative to the motherboard will range from 6.83 mm to 7.49 mm, which is 0.09-0.1 mm more than the LGA 1700 design.
Theoretically, this will maintain compatibility with cooling systems that ran on LGA 1700 processors, but things are not so clear with the clamping force due to the change in mounting height of LGA 1851 processors.
In all likelihood, the processors of this generation will be a bit higher because of more complex layout, which implies placing two crystals on one substrate.Asymmetric shape of crystals, in turn, will not contribute to the even heat removal by the cooling system soleplate, so manufacturers of the latter will probably offer new revisions of their products, optimized to work with processors in the LGA 1851.
Characteristically, the Chinese primary source insists that Arrow Lake-S processors will come out first, and only then Meteor Lake-S will appear, although most other sources consider the reverse sequence.

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