Changing it to Z270E.
Thanks anyway.

This post has been edited by starz92: May 24 2017, 09:28 AM

Hi Sifu's,

I am planning to over clock my i5 7600k. I got up to 4.6 @ 1.3v stable using the auto overclock feature on my Asus Z270F mobo. Temps was around 60-70 running on my AIO Corsair H100i v2.

Any tips or guide on doing the overclock manually? Im looking to get around 4.8 to 5.0. My biggest concern is what kind of temp I should look at and the max amount of power I should go to get those results. Thank you.

Usually auto overclocking will set excessive voltage more than your CPU requires.
For 5.0GHz, I'd recommend to try out the 5GHz overclocking preset available in the UEFI BIOS. Save and reboot.
Your CPU Core Voltage is now on auto mode, you might want to reduce it to 1.25-1.3v depending on your chip and cooling limit.



Run a stressful CPU-intensive benchmark such as X264 FHD Benchmark.
If your cooling is not able to handle the heat (>100c), reduce the CPU speed to 4.9GHz or 4.8GHz while at the same time decrease the CPU Core Voltage until you obtain the lowest possible voltage that's stable at that CPU frequency.

For more info, you might want to have a read on the OC tips and guides in the post #1 of this thread:
The Kaby Lake Overclocking Guide by Raja@ASUS
GIGABYTE Z270 (Kaby Lake) Overclocking Guide

Hi Bro,

Thanks for the insight. I did try the pre-set for 5.0Ghz. The voltage was automatic as you said and it was set at 1.4v.

I was able to boot and used Aida64 to do a simple stress test. Temps was hovering around 70+celcius. However after pass 5 min into the test It went to blue screen. I did not have time to trouble shoot so I reverted back to standard config. But my guess it blue screen because of not enough voltage. So concluded that my chip may not be able to push at 5.0 in low voltage. That's why I want to do a manual over clock.

My question is, would it be blue screen even if the voltage are too high?

1.4v is kinda high for 5.0GHz, but it depends on the chip.
Some chips really love more voltage, not all 7600K can run 5.0GHz stable at low vCore.


Source: https://siliconlottery.com/products/7600k50g

In your case, it looks like your chip could be a lemon. But I hope it's not
Boot into the UEFI BIOS to check your VID (stock voltage with everything set to defaults).
Based on my experience, a good overclocking Kaby Lake CPU should have a low VID of not more than 1.2v.
These chips, specifically the 7700K in my case, should be able to clock 5.0GHz at 1.3v or lower.

Did you monitor the load vCore and what are the lowest and highest values?
FYI, vCore will fluctuate depending on the load level and the Load-line Calibration (LLC) you're using.
It could be that the lowest vCore is too low for your 5.0GHz OC at certain load time that it will trigger an insufficient voltage-related BSOD.

Speaking of the BSOD, can you see what it says on the screen? It could give you some clues on what's actually happening.
Could be other issues as well such as wrong BIOS settings (need to manually alter the loaded 5.0GHz OC profile), bad DDR4 memory etc...

Guys, I am facing frequent BSOD in window 10 whenever I am trying to use the default preset at my MOBO to OC my rig a little. Most problem start when I launch a game.
My rig as below :
i7-7700k
Asus Z270E
Thermaltake Water Cooling 3.0 240L
G.Skill Trident 3200 8GB X 2

I have very minimal OC knowledge so I choose to just use the preset at my MOBO. I tried the XMP Profile to enable my 3200Mhz RAM but I encounter BSOD during gaming. I also tried the 5gb OC preset and also encounter BSOD. Resetting to default setting seems to solve the problem.

Hi bro,

By the way, what "default preset" did you use? What are your core/cache/RAM frequencies and core/RAM/VCCSA (System Agent)/VCCIO voltages?

Getting BSOD with XMP @ 3200MHz is sometimes related to insufficient voltage issue. Try give the VCCSA and VCCIO a bump like 1.25-1.35v and 1.175-1.25v. It's chip dependent, every CPU has different strength of Integrated Memory Controller (IMC). Weak CPU IMC will require higher values to achieve stability and vice versa.




As for "5.0GHz OC preset", how much is your core voltage (vCore)? It could be insufficient voltage, try increasing the CPU Core Voltage a bit. Again, it's also chip dependent. Every chip was born unique, hence they have different VID (stock voltage at default clocks). So to find the best voltage for 5.0GHz OC you will have to go with trial and error.

Hey bro, tq for the reply.
The XMP Profile I just click the XMP Profile 1 (the only choice available at my Bios). Not sure of the setting but will look into it when I am home.
I realised that I am only able to choose either XMP or "5.0GHz OC preset" ? Will the 5.0GHz OC enable my RAM to run at 3200 Mhz?

You can choose to select either one or both of them together.
Afaik, loading the 5.0 OC preset will not automatically activate the XMP profile, and vice versa.
To use both, you will need to firstly select XMP profile and then load the 5.0GHz OC preset.

will selecting 5.0Ghz OC preset after XMP profile reset the XMP Profile or both can work together?

As mentioned earlier, both can work together.
But must in XMP and then 5.0GHz order.
The 5.0GHz OC Preset will not overwrite RAM-related settings but only the CPU-related settings.
You can try it in UEFI BIOS.

This post has been edited by owikh84: Jun 3 2017, 02:17 PM

Just now tried xmp then 5.0Ghz preset together with the voltage setting as shown in your screenshot but unable to in to window. Now I just used xmp with your voltage setting and can work smoothly already. Ltr will try on the 5.0Ghz preset again

Although the 5.0GHz OC preset will automatically set everything for you, some CPUs require further fine-tuning particularly the voltages.
I think you need to play around with the Digi+VRM settings such as the CPU Load-line Calibration (LLC) and other VRM power:

Hi Guys,

Well here are my latest update over the weekend.

I am pretty pleased with the results. I am stable at 4.8Ghz with 1.35volts after 4 hours of stress test on Aida64 and 3 hours on intel extreme stress test. I am however facing issues with ROG stress test tool. The error I keep getting is "Luxmark is unresponding". I read somewhere that it is bugged.

The leading up to this results there are funny issues I faced. I did try the 5.0Ghz preset settings from asus but the voltage was set at 4.2volts which is too high for my taste. I tried bring the voltage down but anything below 4.2 would crash once I start Aida64. Even if I put 4.9Ghz at below 1.40v would crash.

What I find ironic is that even it is a 0.1 difference but the voltage increment is substantial.

Well as for temps @ 4.8Ghz I am hovering around 70-85 Degress on max load. It is below 80 degrees for most time during gaming.

I have a question. I am now using manual on my cpu volt/cache @ 1.35v. I plan to change it to adaptive. My stock volt is below 1.2v. So from what ive learnt is that 1.35v - 1.2v = +0.15v to be placed in the adaptive field. Can someone advise me on this? thank you.

Btw I will be uploading all my screen shots tonight.

This post has been edited by frozenkid: Jun 6 2017, 09:27 AM

Yes, that's how the adaptive method works
You can also enter a value of 1.35 in the Additional Turbo Mode CPU Core Voltage box.



Source: https://rog.asus.com/articles/guides/the-ka...clocking-guide/

Thanks a lot bro. Ill go check it out tonight. Cheers.

Hi Sifus,

My rig is i7-6700K and Asus z170 Pro Gaming

I set my bios to 1.280 VID at 4300MHZ
I ran all bench mark and stress test and it passed good.
It is a mild overclock for my kind of rig...most would do 4500Mhz or even 5k with higher voltages.

My question is...everytime I boot up my computer
1 in 5 boot ups...it will not boot up and on AUTO will reBOOT(like pressing the restart button) and then 2nd time will boot up fine.
Only happens once every 5 times I switch on my computer, other 4 times is normal successful boot ups.

Is this ok? Or do I have to increase my voltage a little more for a stable boot up process. Like 100% success rate error free boot up...

Hi,

What benchmark and stress test did you run?
If those were CPU-intensive benchmark tools such as XTU, Cinebench, Realbench, etc, then I believe CPU voltage shouldn't be an issue here.
It could be a RAM-related issues such insufficient RAM/VCCSA/VCCIO voltages, wrong timing settings etc that your software didn't stress enough RAM.
Did you also experience the same auto reboot issue at default CPU/RAM/etc settings?

Hi owikh84,

I did the Realbench like 5-6 times...
You might be on to something here...it could be the RAM. I hear that there are problems with the Corsair LPX Vengeance series(mine 3000mhz 16gb) with my Asus z170 Pro Gaming boards.
For the RAM overclock i just switched on XMP 2.0. without tweaking anything else...and i remember even before overclocking my CPU, there were some auto reboot instances.

Out of the box, stock configuration 4000mhz + 2333mhz ram = there is no auto reboot
4000mhz + 3000mhz ram = sometimes auto reboot- 1/5
4300mhz + 3000mhz ram = sometimes auto reboot -1/5

Let me try tweaking my RAM configurations...
Any tips ?

Sounds like insufficient voltage issue, specifically the System Agent voltage (VCCSA).
After applying XMP, try increasing it a bit like 1.25-1.35v (depending on strength of your CPU's integrated memory controller AKA IMC).
Weak IMC means you will need to pump more VCCSA.