i9 9900KF speed drifting

[Juggy]

Hey guys, I need assistance with my mild OC, board is an MSI Z390M

I have set my multiplier at 49, fsb at 100, vcore at 1.275 but still under full load the speed drifts from 4.4 to 4.9ghz.

How do I forced it to stay at 4.9ghz permanently?

It looks like it is simply my multiplier that is drifting, how do I set it to stay at 49?

 

[Sirus_the_virus]

Hey guys, I need assistance with my mild OC, board is an MSI Z390M

I have set my multiplier at 49, fsb at 100, vcore at 1.275 but still under full load the speed drifts from 4.4 to 4.9ghz.

How do I forced it to stay at 4.9ghz permanently?

It looks like it is simply my multiplier that is drifting, how do I set it to stay at 49?

Have you tried setting your CPU Multiplier to "Fixed". When doing this the below items should become disabled and Greyed out.

EIST - Disabled
Enhanced Turbo Boost - Disabled
SpeedStep - Disabled

Then in Windows power settings should be set to Ultimate

 

[Juggy]

Have you tried setting your CPU Multiplier to "Fixed". When doing this the below items should become disabled and Greyed out.

EIST - Disabled
Enhanced Turbo Boost - Disabled
SpeedStep - Disabled

Then in Windows power settings should be set to Ultimate

Thanks, I will try that.

 

[Juggy]

Have you tried setting your CPU Multiplier to "Fixed". When doing this the below items should become disabled and Greyed out.

EIST - Disabled
Enhanced Turbo Boost - Disabled
SpeedStep - Disabled

Then in Windows power settings should be set to Ultimate

Everything was already set as you mentioned apart from SpeedStep which I cannot find. Multiplier drifting is still happening between 44 and 49

 

[Sirus_the_virus]

I have the ATX version of your motherboard, but pc currently Disassembled (CPU being Delid). So can't go in and check until end of the week. I think Something in Windows is doing it. What you could is perhaps boot into another OS (USB Flash Drive Bootable OS) and test it there.

Otherwise another thing could be throttling? I've posted my settings this side 8700K OC Adventure | Overclocking

I prefer my CPU to downclock when not underload, so you will see my settings is for that.

The SpeedStep = EIST. I put it in in case it was another setting somewhere on your board.

 

[Juggy]

I have the ATX version of your motherboard, but pc currently Disassembled (CPU being Delid). So can't go in and check until end of the week. I think Something in Windows is doing it. What you could is perhaps boot into another OS (USB Flash Drive Bootable OS) and test it there.

Otherwise another thing could be throttling? I've posted my settings this side 8700K OC Adventure | Overclocking

I prefer my CPU to downclock when not underload, so you will see my settings is for that.

The SpeedStep = EIST. I put it in in case it was another setting somewhere on your board.

Thanks, I have a feeling it is the voltage, I have it set in BIOS at 1.27 however CPUZ is reporting 1.248 for some reason.

 

[Juggy]

I am running Folding@Home on the CPU so it is getting hammered all the time and still the multiplier drifts.

Stumped.

 

[Sirus_the_virus]

I am running Folding@Home on the CPU so it is getting hammered all the time and still the multiplier drifts.

Stumped.

Perhaps run AIDA64 stability test. It will show you if your throttling there.

That test really nails my cpu

Sent from my VKY-L29 using Tapatalk

 

[Juggy]

Perhaps run AIDA64 stability test. It will show you if your throttling there.

That test really nails my cpu

Sent from my VKY-L29 using Tapatalk

Thanks for the advice, I ran AIDA64 (even bought the damn software) for an hour last night with no issues. In fact temps for both CPU and GPU stayed under 70.

Strange thing is even though I have forced the multiplier to 49 when under full load it drops to 46.

Folding@Home stresses my CPU/GPU more than AIDA64 though

 

[Sirus_the_virus]

Thanks for the advice, I ran AID64 (even bought the damn software) for an hour last night with no issues. In fact temps for both CPU and GPU stayed under 70.

Strange thing is even though I have forced the multiplier to 49 when under full load it drops to 46.

Folding@Home stresses my CPU/GPU more than AIDA64 though

Sounds good! What is your avx setting? If it's in the - (negative) then when using avx instructions it will run the cpu lower by what ever number you out in.

So if your cpu is 50x and avs is - 3 you will run 47x when using avx instructions.
I use 0 for my cpu. Don't want no down clocking.

Sent from my VKY-L29 using Tapatalk

 

[Juggy]

Sounds good! What is your avx setting? If it's in the - (negative) then when using avx instructions it will run the cpu lower by what ever number you out in.

So if your cpu is 50x and avs is - 3 you will run 47x when using avx instructions.
I use 0 for my cpu. Don't want no down clocking.

Sent from my VKY-L29 using Tapatalk

If I remember correctly it is on auto. Will check and report back.

 

[Juggy]

Set AVX to 0, still drifting between 44/46/49 multi. Vcore volatge drifts as well between 1.264 and 1.288

 

[iamgigglz]

I wouldn't use Folding as a test of your clocks - it's too "real world", plus it runs at the lowest priority so if Windows even thinks about farting it'll back off, which will have an effect on your clocks.

A synthetic load like Aida simply hits all threads at 100%, clean and simple.

 

[Juggy]

I wouldn't use Folding as a test of your clocks - it's too "real world", plus it runs at the lowest priority so if Windows even thinks about farting it'll back off, which will have an effect on your clocks.

A synthetic load like Aida simply hits all threads at 100%, clean and simple.

Interesting you say that because AIDA ran 100% on both CPU and GPU and the CPU dropped to 46x multi for most of the test. Temps never went over 70. With F@H the CPU runs 100% and drifts between 44/46/49 and both CPU and GPU hit 72-74 degrees

Anyways, the points is with neither AIDA not F@H does the CPU stay at 49x multi which is what my issue is

In fact when the machine is idle it stay at 49x, only under load does it drift

Odd

 

[Ageless_ZA]

Could be thermal limiting. How's your temps?

 

[Juggy]

Could be thermal limiting. How's your temps?

Less than 70 for both CPU and GPU under AIDA after an hour and just over 70 for F@H

I manually set thermal limiting to 95 in the BIOS

 

[Ageless_ZA]

Less than 70 for both CPU and GPU under AIDA after an hour and just over 70 for F@H

I manually set thermal limiting to 95 in the BIOS

That's just plain fucking weird.

 

[Juggy]

That's just plain fucking weird.

Yeah, does my head in.

Maybe I got a bum chip or my boards VRM is shit. Who knows

 

[Ageless_ZA]

Did you set windows to high performance mode? @Juggy

EDIT: also if you’re doing tests and see it stable at 4.9 but then starts lowering and settling at a lower clock it probably means you’re throttling due to temps or power limits which can be adjusted in the bios to Max so you’ll never throttle.

 

[Juggy]

Did you set windows to high performance mode? @Juggy

EDIT: also if you’re doing tests and see it stable at 4.9 but then starts lowering and settling at a lower clock it probably means you’re throttling due to temps or power limits which can be adjusted in the bios to Max so you’ll never throttle.

Yeah, i did set to ultimate performance but it didn't make a difference.

Power limits may be an issue but I have vcore on 1.29 and most other on auto.

Temps should not be an issue at all

 

[Ageless_ZA]

Yeah, i did set to ultimate performance but it didn't make a difference.

Power limits may be an issue but I have vcore on 1.29 and most other on auto.

Check your BIOS, all the menu's sometimes there are hidden power options in arb places.

 

[Juggy]

This damn thing has a mind of its own

Now it's drifting between 45 and 47x multi

Damn, should have done more research and gone for Ryzen off the bat

 

[BLUE-ANGEL]

I run my i9 9900K at solid 4.8Ghz all cores on air cool with NO fluctuations/dips in speed whatsoever regardless of what load I give it....stable as a bus without wheels, ain't going nowhere.
BUT, once I go over I need to up my voltage quite a bit and that leads to higher temps and the CPU starts to throttle to exactly what you are experiencing. Just a 0.1 Ghz difference can ask for a big step up in voltage. What you are experiencing sounds to me like a voltage issue, but i could be wrong. This is just my opinion though..

 

[Juggy]

I run my i9 9900K at solid 4.8Ghz all cores on air cool with NO fluctuations/dips in speed whatsoever regardless of what load I give it....stable as a bus without wheels, ain't going nowhere.
BUT, once I go over I need to up my voltage quite a bit and that leads to higher temps and the CPU starts to throttle to exactly what you are experiencing. Just a 0.1 Ghz difference can ask for a big step up in voltage. What you are experiencing sounds to me like a voltage issue, but i could be wrong. This is just my opinion though..

Thanks for the info. I have vcore set at 1.280 but it drifts, multi at 49 but it drifts even though I have set everything that I can possibly set at fixed. I even set VRM temperature throttling to off.

I just reset the BIOS to factory defaults and started from scratch, still same issue.

I will try your recommendation of 4.8 and see what happens

 

[BLUE-ANGEL]

Thanks for the info. I have vcore set at 1.280 but it drifts, multi at 49 but it drifts even though I have set everything that I can possibly set at fixed. I even set VRM temperature throttling to off.

I just rest the BIOS to factory defaults and started from scratch, still same issue.

I will try your recommendation of 4.8 and see what happens

CPU is like GPU...it's a lottery. you get people who just get lucky with their settings they can achieve on CPU's.

I run my 4.8Ghz at exactly that...1.28Volts. I am "supposed" to be able to run 5.0Ghz at 1.32 Volts but, noway Jose, not my chip. And I have a beefster of an air cooler, but the chip wants a lot of volts for 5.0Ghz, and that leads to my temps to go too high for air cooling.

At 4.9Ghz I tried to keep the temps below 80 and at a preferred average of 75 under full load, but the bugger goes above 80 and I even get some game crashes. I guess what I figured is every chip is unique with it's own sweet spot if you can just find it. Maybe when I get an AIO cooler I will try again and see if I can achieve 5.0Ghz.

On 4.8Ghz I never go beyond 70 degrees, infact ingame I go to about 50 degrees max and I never get game crashes even if I get a good day where I can play for 8 hours straight.

I am not hectically disappointed in not being able to get my 5.0Ghz, would've been nice, but 4.8Ghz is also fine for me. I guess the pro gamers would want that 5.0Ghz and will argue differently, but for me it's not a biggy. If I had to run less than 4.8Ghz, well then I would've kept the settings at stock with turbo boost on.

 

[Juggy]

Tried 48, same thing, it keeps drifting and even though I have vcore set at 1.280 it runs at 1.256

I remove the load and it jumps up to 1.272 vcore and stays at 4800mhz. Maybe I should use auto voltage

There is some dumbf@$kery going on somewhere and I cannot put my finger on it

 

[Juggy]

As soon as I apply load the vcore drops and the multiplier starts drifting

Will have to scour the BIOS

 

[BLUE-ANGEL]

Okay, you have a MSI Z390M and I have the Z390 A.

This is my settings if I recall correctly:

Multiplier: 48x
Ring: 45x
CPU mode: Fixed
CPU Volts: 1.285V
Core Volts Mode: Override Mode
LLC: I think mine I kept on Auto
C-State: Disabled

That is all I did to my CPU overclock settings and I have no issues.

 

[Juggy]

Okay, you have a MSI Z390M and I have the Z390 A.

This is my settings if I recall correctly:

Multiplier: 48x
Ring: 45x
CPU mode: Fixed
CPU Volts: 1.285V
Core Volts Mode: Override Mode
LLC: I think mine I kept on Auto
C-State: Disabled

That is all I did to my CPU overclock settings and I have no issues.

Tried those exact settings and I get issues. I have disabled a bunch of other stuff to try and get it to stop drifting.

I guess I must just resign myself to the fact I got a bum chip or a bum board, it happens I guess

Time to sell and go Ryzen anyway

 

[BLUE-ANGEL]

Tried those exact settings and I get issues. I have disabled a bunch of other stuff to try an dget it to stop drifting.

I guess I must just resign myself to the fact I got a bum chip or a bum board, it happens I guess

Time to sell and go Ryzen anyway

Dam that's a bummer.
It could be your motherboard.