GIGABYTE Z170 Non-K Overclocking Guide

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

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.

slide-3However, 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
    0.00 KB | 26214 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 temperature readout.

Compatible CPUs for non-K OC:

CPU NameCoresStock ClockTurbo ClockHyperthreadingL3-CacheTDPAmazon
Pentium G440023300 MHz-No3 MB54 Wlink
Pentium G4400T22900 MHz-No3 MB35 W
Pentium G450023500 MHz-No3 MB51 Wlink
Pentium G4500T23000 MHz-No3 MB35 Wlink
Pentium G452023600 MHz-No3 MB51 Wlink
Core i3-6098P23600 MHzYes3MB54 Wlink
Core i3-610023700 MHz-Yes3 MB51 Wlink
Core i3-6100T23200 MHzYes3 MB35 Wlink
Core i3-630023800 MHz-Yes4 MB51 Wlink
Core i3-6300T23300 MHz-Yes4 MB35 Wlink
Core i3-632023900 MHz-Yes4 MB51 Wlink
Core i5-640042700 MHz3300 MHzNo6 MB65 Wlink
Core i5-6400T42200 MHz2800 MHzNo6 MB35 Wlink
Core i5-6402P42800 MHz3400 MHzNo6 MB65 Wlink
Core i5-650043200 MHz3600 MHzNo6 MB65 Wlink
Core i5-6500T42500 MHz3100 MHzNo6 MB35 Wlink
Core i5-660043500 MHz3900 MHzNo6 MB65 Wlink
Core i5-6600T42700 MHz3500 MHzNo6 MB35 Wlink
Core i7-670043400 MHz4000 MHzYes8 MB65 Wlink
Core i7-6700T42800 MHz3600 MHzYes8 MB35 Wlink

Depending on your budget you should only consider these CPUs:

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.

GIGABYTE Z170 Non-K Overclocking BIOS

First of all get the correct BIOS for your board. You can find a list of BIOSes in the table below.

After downloading, enter the BIOS and use Q-Flash to update to the Non-K Version

 

GIGABYTE Non-K Overclocking Motherboards and BIOSes

In the table below you can find the GIGABYTE motherboards that support Non-K overclocking using the BIOSes listed below. For more information on how to overclock the Skylake Non-K CPUs using GIGABYTE motherboards, check out the Detailed GIGABYTE Z170 Non-K OC Guide.
MotherboardBIOS DownloadAmazon
Z170X-SOC ForceLink
Z170X-Gaming GTLink
Z170X-Gaming G1Link
Z170X-Gaming 7 (F7a)Link
Z170X-Gaming 7 (F6)Link
Z170X-Gaming 3Link
Z170X-UD3
GIGABYTE GA-Z170X-UD3 Non-K OC BIOS
4.43 MB | 3272 downloads
Link
Z170XP-SLI
GIGABYTE GA-Z170XP-SLI Non-K OC BIOS
4.43 MB | 2697 downloads
Link
Z170M-D3H
GIGABYTE GA-Z170M-D3H Non-K OC BIOS
4.43 MB | 4431 downloads
Link
Z170-HD3P
GIGABYTE GA-Z170-HD3P Non-K OC BIOS
4.46 MB | 4858 downloads
Link
Z170-D3H
GIGABYTE GA-Z170-D3H Non-K OC BIOS
4.43 MB | 5101 downloads
Link
Z170N-WIFI
GIGABYTE GA-Z170N-WIFI Non-K OC BIOS
4.53 MB | 2619 downloads
Link
Z170-HD3
GIGABYTE GA-Z170-HD3 Non-K OC BIOS
4.50 MB | 21175 downloads
Link
Z170-Gaming K3Link

 

GIGABYTE Z170 Non-K Overclocking Steps

My setup:

The CPU clock is a result of the BCLK x Multi. E.g. a i3-6100 has a stock clock of 3700 MHz (100×37). For example a BCLK of 120 will result in a core clock of 4440 MHz.

You basically have to change 3 main values to overclock: CPU BCLK, CPU Multi (Ratio) and CPU Core Voltage. While you can always use around 1,325 Volt as CPU Core Voltage, the CPU Multi and BCLK depend on the exact CPU.

CPU NameCPU + Ring MultiBCLK for 4500 MHZ
Pentium G440033137
Core i3-610037122
Core i3-630038119
Core i5-640027167
Core i7-670034133

Make sure you have a sufficient CPU cooler. Don’t try this with the Intel Boxed cooler.

GIGABYTE Z170 Non-K Overclocking Example

BCLK depends on the CPU. Check values in the table above. Example with Pentium G4500T to 4300 MHz.

  • Enter the BIOS
  • Go to Advanced Frequency Settings and to the sub-menu Advanced CPU Core Settings.
  •  – Adjust CPU Clock Ratio to the maximum value (in my case 30)
  •  – Adjust Uncore Ratio to the maximum value (same as CPU Clock Ratio)
  • Go back to Advanced Frequency Settings
  •  – Change the BCLK Frequency to the value you need (in my case 143)
  •  – Load the XMP Profile (if available)
  •  – Adjust the System Memory Multiplier to stay below 2800 MHz or lower if you have a memory kit with lower specs (e. g. 2133 MHz)
  • Go to Advanced Voltage Settings and to the sub-menu Advanced Power Settings.
  •  – Set CPU vCore Loadline Calibration to High
  • Go back and go to the sub-menu CPU Core Voltage Control
  • – Adjust CPU Vcore to 1.325 Volt
  • Safe settings and exit (F10)

Depending on the CPU quality you migh also need a little bit more CPU Core Voltage. Up to 1.40 Volt is safe to use with sufficient cooling.

If the setting is working well you can also try to use a higher memory clock.

If you have any kind of question, don’t hesitate to ask in the forums:

Overclocking.Guide Forums

BIOS Screenshots:

Advanced CPU Core Settings_[15-31-24] Advanced CPU Core Settings_[15-31-34] Advanced Frequency Settings_[15-31-17] Advanced Memory Settings_[15-31-42] Advanced Power Settings_[15-31-49] CPU Core Voltage Control_[15-31-55] DRAM Voltage Control_[15-32-06]

Now boot into windows and test the stability with Prime95 1344K for at least one hour. For a detailed Prime95 Guide check HERE

These settings should work for almost all boards and CPUs. If you have problems just let me know in the comments.

Video Tutorial:

 

456 comments

Leave a Reply

Your email address will not be published. Required fields are marked *