Recent ASUS BIOS update mentions CPU microcode update.

  1.    06 Jan 2018 #1

    Recent ASUS BIOS update mentions CPU microcode update.


    Just thought I'd see if there was a new BIOS available for my new ASUS Prime Z370-A and there was one available dated 4th January. It mentioned some stability updates and a "microcode update for the CPU". Do we think this relates to the recent Meltdown and Spectre vulnerability? I'm guessing it must do, I can't find a more detailed description on the ASUS website.
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  2.    06 Jan 2018 #2

    Not likely, they are not related.
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  3. Cliff S's Avatar
    Posts : 22,049
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       06 Jan 2018 #3

    Woody72 said: View Post
    Just thought I'd see if there was a new BIOS available for my new ASUS Prime Z370-A and there was one available dated 4th January. It mentioned some stability updates and a "microcode update for the CPU". Do we think this relates to the recent Meltdown and Spectre vulnerability? I'm guessing it must do, I can't find a more detailed description on the ASUS website.
    CountMike said: View Post
    Not likely, they are not related.
    or the Spectre branch prediction attack, Intel is going to add new capabilities to its processors to alter the behavior of branch prediction. Interestingly, some existing processors that are already in customer systems are going to have these capabilities retrofitted via a microcode update. Future generation processors will also include the capabilities, with Intel promising a lower performance impact. There are three new capabilities in total: one to "restrict" certain kinds of branch prediction, one to prevent one HyperThread from influencing the branch predictor of the other HyperThread on the same core, and one to act as a kind of branch prediction "barrier" that prevents branches before the "barrier" from influencing branches after the barrier.
    Meltdown and Spectre: Here’s what Intel, Apple, Microsoft, others are doing about it | Ars Technica
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  4.    06 Jan 2018 #4

    Oh, so it might be then :). That's encouraging if it is.
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  5. Layback Bear's Avatar
    Posts : 994
    Windows 7/64 Professional
       06 Jan 2018 #5

    My beliefs are simple.

    When a proper repair is completed it will be added to a Windows 10 update.
    All manufactures of CPU's will try to fix this problem without using a bios/uefi update with a very basic explanation of what the update does.

    We all just have to wait and see what come down the trail.

    Jack
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  6.    07 Jan 2018 #6

    I updated my ROG Maximus VIII motherboard. There are two programs that must be run. (1) Intel Management Interface Driver and then (2) the ASUS ME update. Just trying to run the ASUS ME update will not work.

    I also found a BIOS update for mine but it too did not change the ME version number. Only after running the two programs (Intel first) did the ME version change.
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