[Guide] CoffeeLake CPUs on Skylake and KabyLake mainboards



It should. You could say this guide was written just for you, since you’re trying the quad core chip. Follow the steps carefully using the tools and files as provided, and it should insert the microcode for the i3-8100. Other people have reported success with that chip on ASRock H110 boards.

But I was silly and jumped to the hex-core on the deskmini, and there were additional steps that are not in this guide, so I can’t truly confirm. Maybe this week? I hope.

I execute the bat and ready? Or do we have to do something else? I have a strix b250f gaming. Thank you very much in advance. Greetings.

Hi, I have one more question. Does this change the appearance of the bios? Thank you very much. Greetings.

You don’t execute the bat file; you place it in the correct folder according to the guide, and the UBU program finds it there when you are on the last step in the process (updating the microcodes).

Also, since your board is not by ASRock, you need to follow the additional steps in the thread “Fixing PCI-E on non-ASRock boards” or whatever it’s called; search for “fixing pci” in the forum and it comes right up. There is guide with a patcher program there; you run that patcher on your BIOS (after following the guide in this thread, but before flashing).

You provide the BIOS, and these processes just change some settings, so the modified BIOS looks the same as what you started with.

I have a Gigabyte GA-H110M-S2H-GSM and I was able to do the BIOS modification for an i3-8100 thanks to the instructions posted here.
The question now is that I got an Xeon E3-1270v5 (LGA1151) and it is not compatible with the H110 chipset, someone here gets the microcode of this processor to add in the BIOS of my board to see if it works the same as it was made for i3 8100 ?


see:
Anyone is researching about using Xeon E3 1200v5/v6 (Skylake/Kaby Lake) and Xeon W (Skylake-E) with Desktop Chipsets?

looks like 1200v5 series also has 506e3 cpuid, same as consumer skylake. problem comes down to me firmware it would seem.

Can anyone build a bios for me with the 6 core microcodes? Asus Maximus 8 Ranger

Got my ASRock H270 Fatal1ty Performance work with 8100 & iGPU
can’t check the PCI-E work or not because I dont have any PCI-E cards ( and I don’t apply the PCI patch yet )
thank alot @elisw for a nice tutorial !

here is my modded bios https://drive.google.com/file/d/1YAp_CO2…iew?usp=sharing

You don’t need to patch the PCI-e on ASRock boards.


[quote="Mov_AX_0xDEAD"] This patch intended for non-Asrock motherboards on 110/150/170/250/270 chipsets, it changes 7(or 8) modules in bios. Also a patch is needed for some new Asrock motherboards with kaby chipset like B250/Z270 or even with sky chipset too. [/quote]
I've checked and actually in this case he need to apply PCIe patch.

[quote="BeepBoop, post:137, topic:32344"] Can anyone build a bios for me with the 6 core microcodes? Asus Maximus 8 Ranger [/quote]
>>>Asus Maximus 8 Ranger<<<

hello everyone,
i’m new here on this forum and i’m looking to upgrade from kabylake i7 7700k to an i7 8700k and i don’t want to change my awesome motherboard ASUS ROG Maximus IX Apex this board have dual bios so there almost zero risk to brick it so i’m planning to purchase an 8700k and trying to mod bios for this card but when i have checking the Maximus X Apex (z370 chipset) i found that only the mosfet are different with an aditional 5GE ethernet card so i have have now two questions:

-did anyone managed to make an 8700k work with z270 rog board?
-I’m wondering if i managed to flash the bios with the Maximus X Apex which is z370 board on my almost identical Maximus IX Apex can it make 8700k compatible with my Board?

i will be grateful if anyone can help me throw this process

From what I know you have two options. First option is based on modification an original bios just like in this thread. This option is quite easy and safe to perform. Further you will be able to flash modified BIOS with USB Flashback. Unfortunately, there is a big chance that HT will not work after such a BIOS modification. So this method is especially dedicated for CPUs like i3 or i5.

Second option is based on modification BIOS from similar Z370 motherboard. Flashing BIOS from Z370 without modification might be a bad idea because of TPU module and vbios configuration. To perform this mod you have to exchange bios region from Z370, transfer vbios settings, delete or exchange GUID which contains TPU firmware and eventually change SKU. Moreover you will have to use hardware SPI programmer to flash BIOS prepared in this way. As you can see, it is not so easy to run i7 Coffee Lake on Z170/Z270, especially on Asus. My suggestion is that you should start working with this only if you have hardware spi programmer and you know how to use it.

In the bios section of the discord group there is a ready made bios for M9A. This is based on M10A bios region so 8700k should work fine. You will meed to flash via spi programmer, in fact I found that for M8I bios flashback is only really good for flashing stock bios or one with very minimal changes. If you try to flash anything else it will either refuse after reading the bios file (static light on flaahback button) or 'pretend ’ to flash - but dumping chip contents after shows that e.g. microcodes are unchanged. This may differ between boards etc. but the bios flashback has quite a few safety / verification features - it will not let you just flaah anything.

Thank you for answer @Wolf_Larsen
The problème is the bios chips are soldered in the motherboard i can’t use spi programmer and i can’t buy one where i live.
So i will try the first option but in this case i will buy an i5 8600k.
One more question can i overclock it?

do you have the link to download the modded bios for the maximus 9 apex?

@mtothaj
I have M9H and until I replace whole BIOS region I am able to flash modded BIOS with USB Flashback successfully. Important is to restore capsule header after BIOS modification.


So where do you live? On different planet or something? You just may buy CH341A.
If BIOS chips are soldered then on motherboard must be JSPI connector.

My M9H during flashing as an example of how it looks.

You want to change 7700k to 8600K? What’s the purpose? You gain practically nothing.

where i live in Tunisia it’s impossible to purchase from international web sites because our card are only valid in Tunisia it’s part of the financial law and paypal don’t work so i can just buy stuff from local stores.
you are right it does not worth the upgrade from the 7700k to 8600k :confused:

Hello everyone.

I’m Vietnamese. Sorry for my bad English.

I’m using ASUS H110M-E/M.2 with G4560. Because I3 8100 can’t run on H110. So I’m decide to mod the BIOS of this mainboard.

However, I don’t know how to download MMTool.exe. I find a version of this software in China language, but can’t open the BIOS of this mainboard. So i can’t continue to step 2 or step 3.

My mainboard: https://www.asus.com/us/Motherboards/H110M-E-M-2/

Can anyone mod this BIOS for me?

Thanks you everyone.



https://files.fm/u/kcjvpzcm

Credits for mod go to Jjxaker of Discord thread - says its tested with i3-8350k and i5-8400, also with Skylake and Kabylake.

So it is possible to run 6 core CFL on older motherboards. I have Asrock Fatal1ty Z270 Gaming K6, very nice motherboard, with 7600k and i would buy 8600k, maybe even 8700k if there is any chance to run it on my motherboard without any problems.