@Paulos7 - If that's the case I'd be surprised, unless time between the two was only a week or so, usually lots of little fixes/changes are added between any BIOS version many not even mentioned in extended change logs. But, I'd also not be surprised if they're known for being lazy?
Yes, you can add/remove any microcodes you want, any time in any BIOS, CPU microcodes have nothing to do with Intel ME

hi,
i have an ASUS P8Z68-V PRO motherboard and SAMSUNG 850 EVO and I5 2500K OC 4.6GHZ
i want to buy a SAMSUNG 970 EVO and M2 adapter for it
i have used UEFI Tool and modded my bios to add NVME.
can any expert check my bios if it is correct or not before flashing?
http://www.mediafire.com/file/vqmai35926gjpvw/P6P.ROM/file

@Lost_N_BIOS
I'm sure you are aware that motherboards don't usually get BIOS updates for more than a couple of years after they are released. The last non-beta BIOS for this motherboard was released back in 2013 (the motherboard was released in 2012). Asrock released a beta BIOS back in May 2018, and it appears that the only reason was CPU microcode updates for Spectre/Meltdown. If you want NVMe support for these older Asrock motherboards you usually have to contact their tech support, and they will e-mail the BIOS to you if they have one (unless, of course, you find the resources to mod the BIOS yourself; e.g. Fernando's Guide). That is how I got versions P1.90A and P1.70F (and these particular BIOS updates were not even available through Asrock US or Asrock Europe). They still are not available for download on the Asrock website(s); so it appears that these rare/custom BIOS updates are only available to those that specifically ask for them. That is why I said that these two BIOS' only had NVMe support (P1.70F), and NVMe and Spectre/Meltdown mitigations (P1.90A). So, it is doubtful (IMO) that there are other minor updates to these BIOS', since they have not been officially released (but, I could be wrong).

@Lost_N_BIOS
I guess I mistakenly believed that the Spectre/Meltdown mitigations were updated by updating ME. When I updated my BIOS with that P1.90A BIOS from Asrock I could swear that it updated ME first and then the BIOS. How can I tell if that BIOS has an ME update with it, or does it not work that way? Would the Spectre/Meltdown mitigations update the CPU just prior to updating the BIOS?

Hi,

I have a Gigabyte GA-H97-Gaming 3 REV. 1.1 motherboard with a built in M.2 connector. I have purchased a Samsung 970 EVO 500gb M.2 SSD and want to boot Win 10 from it.
I have been unable to see the 970 EVO in the Bios, the drive does not appear in Win 10, and is not shown in the drive selection window when installing Win 10 (all other drives were disconnected).
I followed Fernando's guide and using AMI's MMTool V5.2.0.24, installed the full NvmExpressDxe_4.ffs into my H97G3.F7 BIOS, and then flashed it onto my motherboard.
Unfortunately, I still can't see the 970 EVO in the BIOS or Win 10.
I have uploaded my modified BIOS to http://s000.tinyupload.com/index.php?fil...888193644173992
The original BIOS is here http://s000.tinyupload.com/index.php?fil...783069856453909
Can you suggest what I have missed?
Thanks

@Paulos7 - yes I know how BIOS updates get rolled out, and since that one has been so long I'm sure they had a long list of bugs in a log-file which they probably only fixed half of when releasing that recent update + addressed Spectre/Meltdown.
And yes, that could have updated ME too, if they wanted, it adds security fixes as well, but is separate and has nothing to do with microcode updates that cause the concerns everyone has with the spectre/meltdown fixes. You can update/downgrade either separately to anything you want.

You can check if BIOS contains ME by dropping it in UEFITool or ME Analyzer, compare new and old and you'll have your answer (also check current ME version in BIOS Main page or HWINfo64, because even if ME update in BIOS that does not always mean it's flashed in during update)

@AB!! - move PATA SS or whatever the BIOS calls the NVME now into top of spot at HDD BBS setting submenu

Thanks @Fernando -I've never used so only try to remember advices from others. My main goal was to get him to look into the HDD BBS page, often if more than one drive is connected the main one you want wont be shown and many users don't know to look there to move drives around to then make the selectable/present on the HDD priority list on root page that contains the BBS subsection/setting. How would it show up on the BBS Page, nothing at all?

Thanks Fernando for your quick reply.
The Gigabyte GA-H97-Gaming 3 refuses to recognise that the 970 EVO is attached.
I think that I will have to try to find newer versions of the Nvme, NvmeSmm and NvmeInt13 files and flash them onto the motherboard and see if it works

@KCaswell btw. you can see the PCIe transfer mode with a small tool CrystalDiskInfo

Here are my values with Samsung 970EVO:

Thanks so much for your help
Happy new year