On your second post, you have 0x74 fo 906EA listed as pre-mitigation. Is this correct?
No, 0x74 has partial spectre mitigation.
It seems I did not update the second post with the earlier 0x70 microcode for 906EA which I received quite some time after that post was originally written (on the old forums) - although I did put it in the archive.
Thank you for pointing out this error which I have now fixed.
I also saw info saying that 7_ were all pre-mitigation, and 8_ were partial mitigation. I see 0x7C exists for all 3, were these all confirmed to have partial mitigation?
The following 0x7x microcodes for Kabylake, Whiskey Lake and Coffee Lake have partial mitigation:
The 0x80 microcode dated 4th Jan 2018 (only released for 806EA, 806E9, 906E9, 906EB) has full spectre mitigation but Intel pulled it due a potential resume from sleep (S2 STR) bug.
@Sparky_s_Adventure The first 8 core Coffee Lake CPU (906EC revision P0) was released in October 2018, which is after Intel released a microcode with full Spectre mitigation, so there are no earlier microcodes for that CPUID.
Intel eventually patched Spectre (v2) in-silicon when it released the R0 revision CPU’s (906ED) around January 2019 and as such you can only disable Spectre mitigation in the Operating System as shown in this image from Tom’s Hardware.
@luhthien You would be better served to start a new thread about your issue that includes details about your PC (e.g. motherboard, RAM, which operating system etc).
Black screen at Windows login will require a different fix from black screen on PC boot - you will need to give more information on what the problem is and how it occurred in the first place.
Also note that Windows provides updated microcodes for most modern Intel CPUs that will override the microcode in the BIOS.
@chinobino After I update my bios from manufacture (MSI IPC), I’m still not boot to OS.
I wish to be disscus with you for your help me fix it through social network. Pls !!
@luhthien This thread is about Intel microcodes and it sounds like you have had a failed BIOS update.
As that is not the topic of this thread you should create a new thread with all the details of your problem so you can receive some help from the Win-RAID community.