Help me to Overclock i5-6600K

[ZidaneTribal]

Good Day everyone.

 

Hi, this is my first time overclocking, so I hope someone can help me.

I followed this video: 

He said, almost everyone can achieve 4.2Ghz with @1.25v in Skylake CPU and I want to try that.

He only changed the number to 4.2 and change the voltage to 1.25.

The problem is I use different brand motherboard and the interface is quite different to me. I'm using Asrock Z170 Pro4 

I will post the steps here and would you please correct me if I'm wrong.

 

Spoiler

That is the default setting. Do I need to change the BCLK Frequency to 100 or let it Auto?

 

Spoiler

I entered the CPU Ratio and it showed 3 options and I chose All Core

 

Spoiler

After that, I changed the All Core to 42. 

42 here means 4.2Gghz right? I hope so.

From here, I already finished the first step like the tutorial and next is the vcore.

 

Spoiler

I pressed enter to CPU Vcore Voltage. I didn't know what to choose and the difference between offset and fixed mode because in the tutorial, he didn't have these kind of options.

After trying both modes, it seemed fixed mode was the similar method like in the video, so I chose Fixed mode and changed it into 1.25 like the tutorial.

I haven't changed the setting because I want to make it sure that I'm correct 100%.

 

Did I make some mistakes above? cmiiw.

Thank you

[Fasauceome]

3 minutes ago, ZidaneTribal said:

Do I need to change the BCLK Frequency to 100 or let it Auto?

BCLK is supposed to be close too 100 by default, so leave it at auto.

 

4 minutes ago, ZidaneTribal said:

I pressed enter to CPU Vcore Voltage. I didn't know what to choose and the difference between offset and fixed mode because in the tutorial, he didn't have these kind of options.

After trying both mode, it seemed fixed mode was the similar method like in the video, so I chose Fixed mode and changed it into 1.25 like the tutorial.

I haven't changed the setting because I want to make it sure that I'm correct 100%.

This sounds like the only part you're uncertain about, sounds correct to me. Are you monitoring voltage in your OS with software?

Also, 1.25 volts seems like more than you need for a 4.2 OC on a 6700k or 6600k, so I bet once you run your first stress tests you can come back into your BIOS and lower it.

[Jurrunio]

5 minutes ago, ZidaneTribal said:

Do I need to change the BCLK Frequency to 100 or let it Auto?

Auto = manually setting 100MHz. Sometimes it will run like 99.8MHz instead though (HWinfo can read it), in that case you can set 100.1MHz to compensate.

 

6 minutes ago, ZidaneTribal said:

42 here means 4.2Gghz right? I hope so.

BCLK multiplied by core ratio = frequency, in this case 100MHz * 42 = 4200MHz = 4.2GHz

 

7 minutes ago, ZidaneTribal said:

I didn't know what to choose and the difference between offset and fixed mode.

offset allows the voltage to drop at idle, though it's easier to use fixed mode at first to find out the stable voltages for the CPU at different frequencies first.

 

As for loadline calibration (LLC), don't use Level 1 as that tends to send too much voltage to the CPU. Start with Level 3 instead

[ZidaneTribal]

8 minutes ago, fasauceome said:

BCLK is supposed to be close too 100 by default, so leave it at auto.

 

This sounds like the only part you're uncertain about, sounds correct to me. Are you monitoring voltage in your OS with software?

Also, 1.25 volts seems like more than you need for a 4.2 OC on a 6700k or 6600k, so I bet once you run your first stress tests you can come back into your BIOS and lower it.

bold > do you mean run 4.2Ghz @1.25v is too high vcore voltage? how long do I need to run the stress test. The video said 10mins but my friend run it for 1-2hours. Which one is correct?

 

5 minutes ago, Jurrunio said:

Auto = manually setting 100MHz. Sometimes it will run like 99.8MHz instead though (HWinfo can read it), in that case you can set 100.1MHz to compensate.

 

BCLK multiplied by core ratio = frequency, in this case 100MHz * 42 = 4200MHz = 4.2GHz

 

offset allows the voltage to drop at idle, though it's easier to use fixed mode at first to find out the stable voltages for the CPU at different frequencies first.

 

As for loadline calibration (LLC), don't use Level 1 as that tends to send too much voltage to the CPU. Start with Level 3 instead

Well, i think i leave BCLK to auto then.

Okay, I will change it to Level 3 later.

Btw, after changing the setting, how to make it to default?

 

Do I need to OC the RAM as well?

I just knew that Skylake default speed is 2133 and my RAM has 2400 speed (Gskill DDR4 TridentZ RGB PC19200 16GB (2x8GB) Dual Channel F4-2400C15D-16GTZR).

Can I turn on the XMP? And is the step correct?

 

Spoiler

 

[Fasauceome]

16 minutes ago, ZidaneTribal said:

bold > do you mean run 4.2Ghz @1.25v is too high vcore voltage? how long do I need to run the stress test. The video said 10mins but my friend run it for 1-2hours. Which one is correct?

Yeah, I think 4.2 can probably run closer to 1.2 volts. a 10 minute stress test is pretty decent, if you're using something like Aida64, but if you're doing a game benchmark then a good long session helps.

[ZidaneTribal]

2 minutes ago, fasauceome said:

Yeah, I think 4.2 can probably run closer to 1.2 volts. a 10 minute stress test is pretty decent, if you're using something like Aida64, but if you're doing a game benchmark then a good long session helps.

I will use Aida64.

What condition is considered as stable and non-stable? and what about temp? 50+ cdeg = good or bad?

[Fasauceome]

1 minute ago, ZidaneTribal said:

I will use Aida64.

What condition is considered as stable and non-stable? and what about temp? 50+ cdeg = good or bad?

non stable is when it crashes. No crash means you're good. 80 celsius is as high as you'd want to go.

[ZidaneTribal]

4 minutes ago, fasauceome said:

non stable is when it crashes. No crash means you're good. 80 celsius is as high as you'd want to go.

if I crash, it means i need to lower the vcore or increase the vcore right?

do I need to test the memory as well?

[Fasauceome]

12 minutes ago, ZidaneTribal said:

if I crash, it means i need to lower the vcore or increase the vcore right?

do I need to test the memory as well?

If you crash, voltage is probably not enough. The memory will be fine if you used xmp, that's usually quite stable.

[Jurrunio]

43 minutes ago, ZidaneTribal said:

Btw, after changing the setting, how to make it to default?

default as in back to factory settings or use your settings as default?

 

44 minutes ago, ZidaneTribal said:

Do I need to OC the RAM as well?

I just knew that Skylake default speed is 2133 and my RAM has 2400 speed (Gskill DDR4 TridentZ RGB PC19200 16GB (2x8GB) Dual Channel F4-2400C15D-16GTZR).

Can I turn on the XMP? And is the step correct?

Do this after finish playing with the CPU

[ZidaneTribal]

5 minutes ago, Jurrunio said:

default as in back to factory settings or use your settings as default?

 

Do this after finish playing with the CPU

Factory settings.

When the CPU stable > do the ram XMP? okay

 

1 minute ago, ZidaneTribal said:

Factory settings.

When the CPU stable > do the ram XMP? okay

hoo i see.

 

What range is considered as high overclock? 

[Jurrunio]

9 minutes ago, ZidaneTribal said:

Factory settings.

there should be a reset function in the BIOS. Otherwise you could also do CMOS reset, by taking the CMOS battery (the disc battery on the board) out and waiting for a minute.

 

10 minutes ago, ZidaneTribal said:

What range is considered as high overclock? 

4.8GHz is high, 5GHz is very high

[ZidaneTribal]

4 minutes ago, Jurrunio said:

there should be a reset function in the BIOS. Otherwise you could also do CMOS reset, by taking the CMOS battery (the disc battery on the board) out and waiting for a minute.

 

4.8GHz is high, 5GHz is very high

Well, I'look the reset function in the bios. If i cant find it, i'll change the setting manually then 

Can you give me suggestion the CPU Ratio and Vcore?

 

Btw in the bios there is an option to activate Turbo Boost.

Start from 4.2 till 4.8. Is that considered OC ?

[ZidaneTribal]

On 3/19/2019 at 9:58 PM, fasauceome said:

Yeah, I think 4.2 can probably run closer to 1.2 volts. a 10 minute stress test is pretty decent, if you're using something like Aida64, but if you're doing a game benchmark then a good long session helps.

 

On 3/19/2019 at 10:39 PM, Jurrunio said:

there should be a reset function in the BIOS. Otherwise you could also do CMOS reset, by taking the CMOS battery (the disc battery on the board) out and waiting for a minute.

 

4.8GHz is high, 5GHz is very high

What do you guys think?

 

Spoiler

 

Aida64
Stress tess 10mins
highest temp 49 cdeg

 

Spoiler

 

Prime95
Stress test 12mins
highest temp 61 cdeg

0 errors 0 warnings

OC to 4.2Ghz @1.25v (Fixed)
LLC changed to level 3 (lowest)

Spec 
i5 6600K
H100i Platinum RGB (Fan set to quiet and Pump to balance)
RMX 550w

I set the vcore at 1.25 but it couldn't reach it, as you can see in the pic, the vcore is at 1.21.

Is it because the LLC too low? should I increase it to level 2?

 

Cpu-Z

[Fasauceome]

3 hours ago, ZidaneTribal said:

What do you guys think?

Looks pretty decent, 10 mins and no crash is good.

 

3 hours ago, ZidaneTribal said:

I set the vcore at 1.25 but it couldn't reach it, as you can see in the pic, the vcore is at 1.21.

Eh, idk why the voltage isn't high enough but like I recommended, closer to 1.2 instead of 1.25 is better, so hey it works out. Stable is stable.

[ZidaneTribal]

2 minutes ago, fasauceome said:

Looks pretty decent, 10 mins and no crash is good.

 

Eh, idk why the voltage isn't high enough but like I recommended, closer to 1.2 instead of 1.25 is better, so hey it works out. Stable is stable.

so i better change it to 1.2v?

Knowing that 4.2 is stable with 1.25 i want to push it higher. hahahaha

If i set the vcore to 1.35, is 4.5 or 4.6 too high?

[Fasauceome]

12 minutes ago, ZidaneTribal said:

so i better change it to 1.2v?

Knowing that 4.2 is stable with 1.25 i want to push it higher. hahahaha

If i set the vcore to 1.35, is 4.5 or 4.6 too high?

Since you set it to 1.25 and it's coming in as only 1.21 then you don't need to change it.

 

Since your at a decently low voltage, you can probably go around 1.31 or so for 4.5, give it a try.

[ZidaneTribal]

8 minutes ago, fasauceome said:

Since you set it to 1.25 and it's coming in as only 1.21 then you don't need to change it.

 

Since your at a decently low voltage, you can probably go around 1.31 or so for 4.5, give it a try.

ok, i'll post it here when i have the result later

[ZidaneTribal]

2 hours ago, fasauceome said:

Since you set it to 1.25 and it's coming in as only 1.21 then you don't need to change it.

 

Since your at a decently low voltage, you can probably go around 1.31 or so for 4.5, give it a try.

Here is the result

aida64 10mins

Prime95 12mins

4.5Ghz @1.31v

LLC set to Auto

H100i Platinum RGB (Fan Set Balance, Pump Set Balance)

Highest vcore not even reach 1.3, mostly in 1.23v

Why the vcore isn't locked like i set in bios (1.31v) eventhough i use Fixed Setting?

And what do you think about the result for my 2nd test.

Spoiler

 

[ZidaneTribal]

On 3/19/2019 at 9:27 PM, Jurrunio said:

Auto = manually setting 100MHz. Sometimes it will run like 99.8MHz instead though (HWinfo can read it), in that case you can set 100.1MHz to compensate.

 

BCLK multiplied by core ratio = frequency, in this case 100MHz * 42 = 4200MHz = 4.2GHz

 

offset allows the voltage to drop at idle, though it's easier to use fixed mode at first to find out the stable voltages for the CPU at different frequencies first.

 

As for loadline calibration (LLC), don't use Level 1 as that tends to send too much voltage to the CPU. Start with Level 3 instead

@Jurrunio what about LLC set to Auto? is that good?

[Jurrunio]

1 minute ago, ZidaneTribal said:

@Jurrunio what about LLC set to Auto? is that good?

Level 3, auto is unknown behaviour.

[Fasauceome]

11 minutes ago, ZidaneTribal said:

Here is the result

aida64 10mins

Prime95 12mins

4.5Ghz @1.31v

LLC set to Auto

H100i Platinum RGB (Fan Set Balance, Pump Set Balance)

Highest vcore not even reach 1.3, mostly in 1.23v

Why the vcore isn't locked like i set in bios (1.31v) eventhough i use Fixed Setting?

And what do you think about the result for my 2nd test.

If you're getting good temps and a high frequency, chances are the OC is stable. It really looks like you don't have to change anything, the voltage is not what you set but it's working and that seems pretty great. Are you getting a performance increase?

[ZidaneTribal]

3 hours ago, Jurrunio said:

Level 3, auto is unknown behaviour.

Hooo.

When is the time we need to change it to Level 2 or even Level 1?

Did you see the pic above? Is it normal when I set the Vcore in BIOS at 1.25v (Fixed Setting) but in CPU-Z or Aida64 CPUID it couldn't reach 1.25v.

It reached max at 1.23v and min at 1.21v.

I thought the setting "Fixed" is to lock the parameter value at 1.25v. No more or less.

Is that normal?

3 hours ago, fasauceome said:

If you're getting good temps and a high frequency, chances are the OC is stable. It really looks like you don't have to change anything, the voltage is not what you set but it's working and that seems pretty great. Are you getting a performance increase?

I see.

I used the setting like in the video, OC to 4.2GHz @1.25v and you said earlier I better change it to 1.2v

I've ran it in 1.2v and the result was good.

Should I use 1.25v (play safe) or stick to 1.2v?

[Fasauceome]

5 minutes ago, ZidaneTribal said:

I see.

I used the setting like in the video, OC to 4.2GHz @1.25v and you said earlier I better change it to 1.2v

I've ran it in 1.2v and the result was good.

Should I use 1.25v (play safe) or stick to 1.2v?

Higher voltage isn't necessary if you're stable, you can always heap more on to be "safe" but it's not gonna change anything if you're not crashing.

[ZidaneTribal]

2 minutes ago, fasauceome said:

Higher voltage isn't necessary if you're stable, you can always heap more on to be "safe" but it's not gonna change anything if you're not crashing.

After having a stable result of CPU OC, is it the time to unlock XMP Profile?

Do we need to stress test to memory as well if unlock the profile?