someone have a bios allready modded for an ASUS Maximus IX Code? i am thinking to use a 8086k on that board. what i thinked is to to mod a Maximus X Code bios for the IX code.

I think it could be helpful to put a motherboard success list in the OP...

Personally I think it might be better to create a dedicated thread.

PRIME-Z270-A-ASUS
PRIME-Z270-P-ASUS
ROG-MAXIMUS-IX-APEX-ASUS
ROG-MAXIMUS-IX-FORMULA-ASUS
ROG-MAXIMUS-IX-HERO-ASUS
ROG-MAXIMUS-IX-HERO-WIFI-AC-ASUS
ROG-STRIX-Z270-E-GAMING-ASUS
ROG-STRIX-Z270-F-GAMING-ASUS
ROG-STRIX-Z270-G-GAMING-ASUS
ROG-STRIX-Z270-G-GAMING-WIFI-ASUS
ROG-STRIX-Z270-H-GAMING-ASUS
ROG-STRIX-Z270-I-GAMING-ASUS

These models can support i7 hyper threading, including i7 8086K .
I7 8700 and I7 8060k support HT, 6C12T! BIOS overclocking function is also normal!

it HT working out of the box if the bios is modded correctly to support coffee lake @shixinyuan ?

and did you maybe know why it´s supported on z270 and not on z170? thank you.

Z270 and Z370 power IC are the same! Z170 and Z370 power IC are different! If you can find the correct power supply IC module and try to replace it, it may support. I have tested many related power modules, and have not succeeded.

@oldirdey
The problem with old (z170) boards, at least in case of Asus Maximus VIII Impact, is that their software/bios is configured to support maximum of 8 (logical) processors. Actually, the HT is working - I can boot 8700K with (up to) 4 cores/8 threads running. The problem is with 6c/12t configuration. I'm trying to figure out whether/how it can be patched - no success yet.

@shixinyuan
z270 and z370 boards are usually very similiar - replacing bios modules between them might work. But it's not the case with z170 boards. I'm afraid you can't just take one key/important module from z370 board and make it work on z170 (without aditional patching) - hardware addresses are different, nvram/configurations are different...

I tried to run Asus Z170-P with 8600k. It starts only for a half of a second. There were different tries with a lot of different versions of BIOSes. I use CH341A usb programming tool to flash the BIOS chip. Now I see there is a problem with power consumption / cores limit on old Z170 chipsets. If anyone has suggestions how to avoid this problem I'd like to give a try. Looking forward.

@Yazon2006 it still sounds like an ME issue. Which version are you using? You have a 906ea microcode in both volumes 4 and 5?

I just picked up a Z170 Asrock Gaming K6 off the Amazon prime day for 60 bucks. I already did the mod for the 8100 on a H110 some months ago, I have just read that is possible to run the 8700k now with the isolation pin mod and that's not a problem at all. I just wanted to ask if anyone could provide me an already modded bios or explain me with patience how to select the 6 core microcode to flash it and which files I need in order to mod successfully since I kinda got lost in all these pages with some information coming from other threads/forums. Even a confirm that what I've done until now is right would be great. I injected via UBU the skylake microcode and the coffelake-6-core one. The rest of the bios is the stock one. Do I have to do anything else? If not, now I'll just have to flash the bios and then insert the pin-modded 8700k?

@shixinyuan / @s.napi thank you very much for your information.

@Yazon2006
probably ME issue. I had the same symptoms before I get donored bios from @mtothaj - it has ME version 11.6.10.1196 region with only FTPR partition (other partitions are removed from ME region). After this change I was able to boot.

@ItxLeo tried old one like 11.0.+ and 11.6.+ something. Not sure about microcodes and volumes. How to check if BIOS contain proper microcodes in both volumes?
@s.napi Hope you are right. Tonight will try more few times. How to check if BIOS has ME version 11.6.10.1196 region with only FTPR?
I'm asking for it because there are no information in header of current topic about how to validate modded BIOS and if all is ok. Basically I'm doing all in blind. It would be great if someone provide checklist of the must be items in BIOS to be sure that modification is done in proper way.

The easiest way is to extract ME region from mentioned bios (or any other working bios) and replace ME region in your bios with this one.