In a stunning bit of Twitter, a tweet from one of the leading motherboard manufacturers has stated that Coffee Lake, Intel’s 8th Generation Core processors, will not be supported on the current generation of 200-series motherboards.

Information like this is usually kept under wraps until an Intel reveal, but it seems to have been mindlessly posted to Twitter on July 31st, an account that last tweeted on April 11th before this tweet occurred. This tweet has since been deleted.

At this point, due to the similar microarchitecture to Kaby Lake being used in Coffee Lake, most of the technology press were under the impression that the Coffee Lake processors would be compatible with LGA1151 socket motherboards, namely the 100-series and 200-series. With the above tweet essentially confirming that Coffee Lake will not be supported, it means that either the new CPUs will not be LGA1151, or that the motherboards will lock-out the processors by firmware, or the CPUs and sockets will use a different notching system to ensure the wrong processor cannot be put in the wrong board. It does mean however that 200-series users hoping to upgrade to a Coffee Lake processor (which early reports are suggesting might be up to six cores, but this has not been announced) will not be able to.

There are many potential reasons for the change if the socket is still LGA1151. The obvious one would be product segmentation on Intel’s part, which would stick in the craw for a number of the user base. The second one that it might actually be a physical requirement for the processor – if previously unused pins are required for power and/or control for different elements of the DVFS in the chip. This would depend on new features on the chip, which could extend to different power management, different graphics, or different IP blocks that require separate pin-out connections. Intel might also be using a different power system for voltage regulators, which might not be compatible with current 200-series motherboards.

At this point, nothing has been made official. The fact that this was stated on Twitter so far from any launch date that we know of is an interesting development.

*The name of the manufacturer has been removed by request after this news was published.

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Source: Twitter

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  • rolfaalto - Saturday, August 5, 2017 - link

    Any chance this new chipset will support PCIe-4? My code runs fastest when a high end GPU is coupled with an extremely fast (overclocked) CPU with access to fast storage. Since the GPU does all my parallel computation I have no need for more than ~4 CPU threads, though with the maximum possible FP performance to blitz the few serial tasks I have. Optane memory support would also be a significant plus, especially next generation Optane wired directly to the CPU through PCIe-4 would be worth a huge premium to me. Reply
  • AntonErtl - Sunday, August 6, 2017 - link

    In the old days I upgraded from a K6-2 300 to a K6-2 500, and on the next platform from an Athlon 800 to an Athlon 1200; the prices and performance increases of the AMD CPUs at the time made this attractive. Intel never made such upgrades attractive, either by requiring a new board, or through the price (IIRC I could have upgraded the Pentium 133 to a Pentium MMX 200, but the latter was too expensive to make me upgrade).

    Last December my Core i7-6700K died, and I replaced it with an i5-6600K. If Kaby Lake had been available at the time, that would have been an option (although I probably would not have taken it thanks to the lack of HD630 drivers for Windows 8.1; yes, I use CPU graphics).
    Reply
  • peevee - Monday, August 7, 2017 - link

    No, Intel does not care about your aspirations to upgrade, they want to sell chipsets (although the very idea of a CPU requiring chipset should have been retired 10 years ago). Reply
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