Listing here the Intel 6.Gen BCLK capable mainboards that can overclock non K 6.Gen Intel CPUs.

Der8auer guide:
Z170 Non-K Overclocking Guide

Few days ago I published a short article about overclocking non-K CPUs. The non-K OC is really easy and can be done within few minutes. Depending on the CPU you can increase the clock between 15-70 % without any problems. In this quick guide I will explain how you can OC your non-K CPU on Z170 boards.
Basics

Unlike K-CPUs which can be overclocked using the multiplier, non-K CPUs have to be overclocked using the BCLK. Pre-Skylake CPUs such as Haswell or Devils Canyon could only be overclocked by about 3-5% using the BCLK because the BCLK was still tied to the DMI and the PCIe.

However, for Skylake CPUs, BCLK and PCIe have a dedicated reference clock which always stays at 100 MHz – no matter how you change the BCLK. In other words: You can push the BCLK without worrying about other components.

The non-K BIOS is skipping some parts of the power-management, so there are few things you have to keep in mind:

The missing power-management will not allow to read out any core temperature. However, you can read-out the package temperature with the tool HWInfo (make sure to stay below 70°C package temperature)
HWiNFO
April 10, 2016 0.00 KB 576 downloads
No C-States. CPUs will always run full speed and full voltage.
No Turbo-Mode.
No iGPU.
Intel AVX is screwed. Some benchmarks like Intel XTU use AVX and you will have about 4-5 times lower score. As far as I know no game is using AVX so it’s no problem to use this for gaming rigs. Not suitable for professional usage tho.
Avoid high memory clocks. Everything around 2600 MHz will be fine.

For 24/7 overclocking and gaming you don’t have to worry about any of these points. Pentium, i3 and i5 CPUs have a low power consumption which results in a low core temperature for 24/7. As long as follow my guide you don’t have to worry about the missing core-temperature readout.

Compatible CPUs for non-K OC:
CPU Name Core Count Stock Clock Turbo Clock Hyperthreading L3-Cache TDP
Pentium G4400 2 3300 MHz - No 3 MB 54 W
Pentium G4400T 2 2900 MHz - No 3 MB 35 W
Pentium G4500 2 3500 MHz - No 3 MB 51 W
Pentium G4500T 2 3000 MHz - No 3 MB 35 W
Pentium G4520 2 3600 MHz - No 3 MB 51 W
Core i3-6100 2 3700 MHz - Yes 3 MB 51 W
Core i3-6100T 2 3200 MHz Yes 3 MB 35 W
Core i3-6300 2 3800 MHz - Yes 4 MB 51 W
Core i3-6300T 2 3300 MHz - Yes 4 MB 35 W
Core i3-6320 2 3900 MHz - Yes 4 MB 51 W
Core i5-6400 4 2700 MHz 3300 MHz No 6 MB 65 W
Core i5-6400T 4 2200 MHz 2800 MHz No 6 MB 35 W
Core i5-6500 4 3200 MHz 3600 MHz No 6 MB 65 W
Core i5-6500T 4 2500 MHz 3100 MHz No 6 MB 35 W
Core i5-6600 4 3500 MHz 3900 MHz No 6 MB 65 W
Core i5-6600T 4 2700 MHz 3500 MHz No 6 MB 35 W
Core i7-6700 4 3400 MHz 4000 MHz Yes 8 MB 65 W
Core i7-6700T 4 2800 MHz 3600 MHz Yes 8 MB 35 W


Depending on your budget you should only consider these CPUs:

Pentium G4400
Core i3-6100
Core i3-6300
Core i5-6400
Core i7-6700

All of the CPUs should easily reach 4400-4500 MHz and a high multiplier is not needed because you can compensate everything with the BCLK.

Asrock:
Z170 OC Formula L1.92
Z170 Extreme7+ L2.16
Z170 Extreme6+ L1.82
Z170 Extreme6 L1.82
Z170 Extreme4+ L2.01
Z170 Extreme4 L2.43
Z170 Extreme3 L1.61
Z170M Extreme4 L1.34
Z170 Pro4 L2.83
Z170 Pro4/D3 L1.74
Z170 Pro4S L2.73
Z170M Pro4 L2.23
Z170M Pro4S L2.23
Z170M-ITX/ac L1.83
Z170A-X1/3.1 L1.31
Z170 Professional Gaming i7 L1.14
Z170 Gaming K6+ L1.92
Z170 Gaming K6+ L1.92
Z170 Gaming K6+ L1.92
Z170 Gaming K6 L1.92
Z170 Gaming K4 L2.23
Z170 Gaming-ITX/ac L1.53
Z170 Gaming K4/D3 L1.51





ASUS

ASUS Maximus VIII Extreme Non-K OC BIOS
ASUS Maximus VIII Gene Non-K OC BIOS
ASUS Maximus VIII Hero Non-K OC BIOS
ASUS Maximus VIII Impact Non-K OC BIOS
ASUS Z170-A Non-K OC BIOS
ASUS Z170-Deluxe Non-K OC BIOS
ASUS Z170-E Non-K OC BIOS
ASUS Z170 Pro Gaming Non-K OC BIOS
ASUS Maximus VIII Ranger Non-K OC BIOS
ASUS Maximus VIII Hero Alpha Non-K OC BIOS
ASUS Z170-K Non-K OC BIOS
ASUS Z170-P Non-K OC BIOS
ASUS Z170M-Plus Non-K OC BIOS
ASUS Z170-P D3 Non-K OC BIOS
ASUS Z170M-E D3 Non-K OC BIOS
ASUS Z170I Pro Gaming Non-K OC BIOS

ASRock

ASROCK Z170 OC Formula BIOS for non-K OC
ASRock Z170 Extreme3 Non-K OC BIOS
ASRock Z170 Extreme4 Non-K OC BIOS
ASRock Z170 Extreme4+ Non-K OC BIOS
ASRock Z170 Extreme6 Non-K OC BIOS
ASRock Z170 Extreme6+ Non-K OC BIOS
ASRock Z170 Extreme7+ Non-K OC BIOS
ASRock Z170 Gaming K4 Non-K OC BIOS
ASRock Z170 Gaming K4D3 Non-K OC BIOS
ASRock Z170 Gaming K6 Non-K OC BIOS
ASRock Z170 Gaming K6+ Non-K OC BIOS
ASRock Z170 Gaming-ITXac Non-K OC BIOS
ASRock Z170 Pro4D3 Non-K OC BIOS
ASRock Z170 Pro4S Non-K OC BIOS
ASRock Z170A-X13.1 Non-K OC BIOS
ASRock Z170M Extreme4 Non-K OC BIOS
ASRock Z170M-ITXac Non-K OC BIOS
ASRock Z170 Pro4 Non-K OC BIOS

MSI

MSI Z170A XPOWER GAMING Titanium Edition Non-K OC BIOS
MSI Z170A Gaming M9 ACK Non-K OC BIOS
MSI Z170A Gaming M7 Non-K OC BIOS
MSI Z170A Gaming M5 Non-K OC BIOS
MSI Z170A-G45 Gaming Non-K OC BIOS
MSI Z170A Gaming M3 Non-K OC BIOS
MSI Z170A Gaming Pro Non-K OC BIOS
MSI Z170A KRAIT GAMING Non-K OC BIOS
MSI Z170I Gaming Pro AC Non-K OC BIOS
MSI Z170A TOMAHAWK Non-K OC BIOS
MSI Z170M MORTAR Non-K OC BIOS
MSI Z170A SLI PLUS Non-K OC BIOS
MSI Z170A-G43 PLUS Non-K OC BIOS
MSI Z170A PC Mate Non-K OC BIOS
MSI Z170A Krait Gaming Non-K OC BIOS
MSI Z170A TOMAHAWK Non-K OC BIOS
MSI Z170A KRAIT GAMING 3X Non-K OC BIOS
MSI Z170A KRAIT GAMING R6 SIEGE Non-K OC BIOS
MSI Z170A GAMING PRO CARBON Non-K OC BIOS
MSI Z170-A Pro Non-K OC BIOS

GIGABYTE

GIGABYTE GA-Z170-HD3P Non-K OC BIOS
GIGABYTE GA-Z170X-Gaming 3 Non-K OC BIOS
GIGABYTE GA-Z170X-Gaming 7 Non-K OC BIOS
GIGABYTE GA-Z170X-Gaming 7 Non-K OC BIOS
GIGABYTE GA-Z170X-Gaming GT Non-K OC BIOS
GIGABYTE GA-Z170X-Gaming G1 Non-K OC BIOS
GIGABYTE GA-Z170X-SOC Force Non-K OC BIOS
GIGABYTE GA-Z170-D3H Non-K OC BIOS
GIGABYTE GA-Z170M-D3H Non-K OC BIOS
GIGABYTE GA-Z170N-WIFI Non-K OC BIOS
GIGABYTE GA-Z170X-UD3 Non-K OC BIOS
GIGABYTE GA-Z170XP-SLI Non-K OC BIOS
GIGABYTE GA-Z170-HD3 Non-K OC BIOS
GIGABYTE GA-Z170-Gaming K3 Non-K OC BIOS

BIOS files: https://mega.nz/folder/tlFlGB4T#s2D6...bUhQuMK7ww