I try to find a CPU to boot from back up bios, and fix the other.

Why is your backup BIOS not compatible with this CPU? You should have made them match if you knew it wouldn't work with this CPU, for next time anyway I know it's too late now

So, do you have a BIOS switch, to switch between either BIOS? If yes, you can boot to BIOS 2, get into M-Flash, then toss the switch and flash the main BIOS.
This can be done maybe with $5-10 CPU's on ebay, there is many cheap X79 CPU's now, do you know what BIOS version is on your other BIOS, I can lookup CPU's that should be compatible.
That (order CPU) would be quicker than ordering the recovery tools, although those are so cheap I advise everyone orders a set whenever they have the chance so they have when needed.

The motherboard has switch , one with the bricked bios, and the other with the old bios that is version 1.xx that support only one CPU (I believe 3930k) . So when I find this CPU, perhaps I fix the corrupted bios.

Well there is many cheap X79 CPU on ebay, like E5-1603, E2-25xx, E5-26xx, check those CPUID's and then the V1 BIOS for which CPUID's are included and you'll be ready to test on the cheap.
Or maybe you can borrow a friends CPU for a day? If not, order the two items I mentioned, they will be a lifesaver for you in the future anyway.

Didn't find CPU, I buy today x99 platform. I find it in good price (now I'm broke!!) I search for i7 3930k and fix the bios, ( I borrow somehow)

i7-3820 CPU would be the norm for this series on launch, so it's defiantly compatible with 1.xx BIOS. It costs more than the cheap Xeons I mentioned, but should be a good bit cheaper than 3930K

I checked V1 BIOS, and aside from 4x ES microcodes, the one retail matches following with 3820 too
E5-2620 QBF3, SR0H7 both have same CPUID as i7-3820 (206D6) = $18 on ebay & E5-2609 QBLX pair on ebay now for $21

OK! If I don't find to borrow , I buy a cheap e5 2620. Thank you very much for you help.

If you get E5-2620, be sure to ask the seller to verify and make sure he sends you one of those SSPEC's I mentioned C1 - QBF3, SR0H7), there is another SSPEC that is 206D7 which is not in the V1 BIOS
I forgot to mentioned E5-1607 QBLV is also 206D6, and E5-2603 QBLY - probably others too, but I was looking for the cheaper ones on ebay.

Zitat von Lost_N_BIOS im Beitrag #4

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@stevedri - Here is NVME Mod BIOS for the above linked board
http://s000.tinyupload.com/index.php?fil...674092847974651

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@liwi - if that is your board, then yes BIOS is working otherwise someone would have reported it's not by now.

Having updated the bios, installed the nvme disc, has been working for a long time, while everything is alright. Updated using M-flash.

thanks for the help.

Great, thanks for report back it's working properly @liwi

Hello, I flashed it using flashrom utility and live Xubuntu, because everything else, including m-flash wasn't able to flash newer bios than 1.8. I was solving this for hours. Only ".rom" file I had, was from here and I was happy, when it posted, but I cannot boot from NVMe drive.
When I put in any of my pcie connectors Plextor PX-512M9PeGN in m.2 nvme to pcie adaptor(was properly working in AsRock X79 Extreme3 and my laptop), bios says, it sees some unknown(PATA: ) device and if I try to boot from it, "no boot device" message appears on screen. Do you have some advices? Thanks a lot.

@Bodax - You can't flash stock BIOS with flashrom, or I mean you should never do that This is same as programmer, or FPT etc, only backup BIOS first, then modify, then reflash, when using tools like those. Otherwise you will loose your NVRAM, Serial, UUID, LAN MAC ID etc.

Since you now see PATA sounds like it's correct. So for booting from NVME, this is all I know, you must do a clean install and follow all steps exactly as you see on step #4 here in the "This is what you should do" Section
[Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS

Ok, then I stay on sata ssd and sas raid, because I have very important installation of Xubuntu with all programs needed for my work on tha nvme ssd. I'll be using it in my spare laptop(T460s) instead of main rig. Thx for this bios/reply anyway.