Help stop my 12900k boiling itself

[Cyanide]

I’m setting up my workstation at the moment. Specs are as follows -
12900k
MSI Z690 Pro
64Gb Vengeance 5200 (2x 32gb)
2070Super
RX850w
Arctic LFii420mm

No matter what I set the damned thing to it thermal throttles in Cinebench. I don’t want to start loading too much other software on until I’ve got it working properly hence just using the cpu standard benchmark.

I can lower the power limit, but then it hits power throttling and I lose a good chunk of performance.

It doesn’t seem to matter what I set the core voltage or LLC to, it just ignores it and chucks whatever power at it that it fancies to hit the clocks. Oddly enough although XTU says it’s throttling it doesn’t drop the clocks at all.

The cooler is mounted with the Arctic 1700 mounting kit. It’s definitely making good contact and I’m using Thermal Grizzly Hydronaut.

I know these things run hot, but surely it shouldn’t be hitting 100c within 2-3 seconds of a cinebench run? Especially on a 429mm AIO!

Is there some secret sauce setting that I’m missing in the bios (or xtu) that’ll help?

 

[ODuffer]

That doesn't sound great. My 5800X, a toasty chip in its own right, only gets to 75C stock, and ~80C when OC'd using that cooler, and MX-4 thermal paste.

Is the AIO running at a decent lick, pump/fans? Maybe give Fan Control a go to check.

 

[zia]

At 5.3 mine can hit 99*c in cinebench.
Is it overclocked?
In stock format should not thermal throttle.
Adl have inbuilt voltage curve so it will use predefind voltage at certain cpu speed.you tweak this using vf points

Zia

 

[Journey]

The cooler is mounted with the Arctic 1700 mounting kit. It’s definitely making good contact and I’m using Thermal Grizzly Hydronaut.

Have you checked for bend/flex in your board/socket and the CPU itself. Its quite a common issue with LGA1700 sadly, so it may look like you have good contact but you don't. I assume you've refitted the block/pump more than once?

 

[Cyanide]

That doesn't sound great. My 5800X, a toasty chip in its own right, only gets to 75C stock, and ~80C when OC'd using that cooler, and MX-4 thermal paste.

Is the AIO running at a decent lick, pump/fans? Maybe give Fan Control a go to check.

I had a 5950x in it before and that only hit 75c under full load.

Fans are ramping up to full when the load hits and the pump is set to 100% the whole time (though I can’t actually check it because the LFii doesn’t report pump speed). I don’t think it’s the cooling setup, it just looks like the chips sucking in too much voltage

 

[Cyanide]

Have you checked for bend/flex in your board/socket and the CPU itself. Its quite a common issue with LGA1700 sadly, so it may look like you have good contact but you don't. I assume you've refitted the block/pump more than once?

Yep, refitted a couple of times. Even tried the washer mod on the retaining bracket!

 

[Journey]

So what voltage does the CPU report when you are running Cinebench then?

 

[Cyanide]

So what voltage does the CPU report when you are running Cinebench then?

1.3-1.4v even though it’s set to 1.25v in bios

 

[Cyanide]

At 5.3 mine can hit 99*c in cinebench.
Is it overclocked?
In stock format should not thermal throttle.
Adl have inbuilt voltage curve so it will use predefind voltage at certain cpu speed.you tweak this using vf points

Zia

I can back it down a bit to around 95ish with some overclocking and undervolting, but at stock it hits 100c and reports throttling almost instantly… it just doesn’t drop the clocks!

 

[Purgatory]

I can back it down a bit to around 95ish with some overclocking and undervolting, but at stock it hits 100c and reports throttling almost instantly… it just doesn’t drop the clocks!

Does the radiator get hot to the touch ? Sounding like a cooler issue to me what you are seeing or maybe time to update the BIOS on the motherboard to make sure it is not giving it way too many volts. I would start with BIOS update and set to defaults and only xmp enabled for the ram.

 

[Vimes]

When I had the MSI 690 Pro, same applies with my gigabyte, and I use std defaults for vcore voltage it would always overvolt the CPU to the point of getting hot, similar to what you describe, that is with my 12700k. I also have a 420mm Arctic Freezer II AIO.
Using an offset voltage for the MSI board, and now for the gigabyte has very much resolved that concern. I mention overvolt as I was able to reduce that by enough to maintain stability but also reduce the instant heat when running the likes of Cinebench.
Remembering that Cinebench rarely equates to typical use, no more than OCCT does.

 

[doyll]

What Vimes asked, does radiator get hot?
How much warmer is hose flowing out of waterblock/pump than in?

Ideally pump should flow coolant fast enough coolant coming out of waterblock is only a few degrees warmer than entering. Lower temp coolant in waterblock allows more heat tranfer / faster heat transfer from CPU to coolant.

 

[TheMero]

Guys i need help with similar issue, my 12900k at idle is around 35-40c on a warm day. It spikes up and down quite high when running programs even though its not really being pushed. When running cinebench r23 it immediately spikes to 100c and stays there for 10mins and gets nearly 27k score. Is this normal? Running a nzxt 360mm cooler. So far system has been stable playing games and general use fur many hours. Didnt crash for 10min cinebench test and goes back to 35-40c when finished. Whats going on? its stock no OC xmp enabled ddr5 and more worried about the spiking than the cinebench tenps though id like to reduce this for a small OC. MSI Tomahawk mobo with thermal grizzly lots of fans o11 evo case.

 

[Vimes]

@TheMero Stop running Cinebench, surely you must get weary of the same repeats
It isn't compulsory you know, especially in this weather.

Note what I had mentioned in my other post, in regards to offset voltages.

You mention that it is stable in games and general use for hours - you can't fix a problem that you do not have

 

[ODuffer]

Agreed, my 5800X3D spikes to 90C when I run Prime95, I've stopped running Prime95
It's ~65 when gaming, so that's fine with me.

 

[Hawk Tuah]

Linus just did a video talking about the issues with cooling this chip.

 

[TheMero]

@TheMero Stop running Cinebench, surely you must get weary of the same repeats
It isn't compulsory you know, especially in this weather.

Note what I had mentioned in my other post, in regards to offset voltages.

You mention that it is stable in games and general use for hours - you can't fix a problem that you do not have

Stable as in the PC is stable, but temps are quite spiky and can move around a fair bit on hardware monitor. Wondering if its normal or or if i have a cooling issue at the top end for whatever reason.. might not be a problem now but maybe later? Want to boost it a tiny bit so I do need the temp to come down on cinebench! I'll try undervolting it. Is it better to do an offset or straight up lock the voltage through bios/xtu?

 

[Vimes]

Stable as in the PC is stable, but temps are quite spiky and can move around a fair bit on hardware monitor. Wondering if its normal or or if i have a cooling issue at the top end for whatever reason.. might not be a problem now but maybe later? Want to boost it a tiny bit so I do need the temp to come down on cinebench! I'll try undervolting it. Is it better to do an offset or straight up lock the voltage through bios/xtu?

I no longer have an MSI board, but the premise is the same. As mentioned in that "other" post I found both my MSI board I had and the Gigabyte I now have would put more voltage into the CPU than was needed for stability, even when overclocked.
There are plenty of YT vids going into such detail, I imagine.
With my my Gigabyte board I am able to put a small negative offset that allows my 12700k to run at 5.1Ghz / 4Ghz with no heat issues.
I have tried a constant voltage, some prefer this, but I do not see the point in that. As with many things tho there isn't an absolute right way for everyone.
I like my CPU to vary its speed and also its voltage, stability is not compromised.

I absolutely do not run the likes of CB, especially in this weather. CB is not really a means to an end in terms of assessing how you typically use your PC. Altho some seem to enjoy spending lots of time involving that.
If it's not a problem now, then leave things as they are. If it might be a problem in the future..........................deal with it then. It is far too warm to do meaningful tests and make cooling adjustments now.

My temps of the CPU I note are an average of 10 seconds, in terms of fan control. I do not bother about "spikes" but trends.

 

[Jay85]

I no longer have an MSI board, but the premise is the same. As mentioned in that "other" post I found both my MSI board I had and the Gigabyte I now have would put more voltage into the CPU than was needed for stability, even when overclocked.
There are plenty of YT vids going into such detail, I imagine.
With my my Gigabyte board I am able to put a small negative offset that allows my 12700k to run at 5.1Ghz / 4Ghz with no heat issues.
I have tried a constant voltage, some prefer this, but I do not see the point in that. As with many things tho there isn't an absolute right way for everyone.
I like my CPU to vary its speed and also its voltage, stability is not compromised.

I absolutely do not run the likes of CB, especially in this weather. CB is not really a means to an end in terms of assessing how you typically use your PC. Altho some seem to enjoy spending lots of time involving that.
If it's not a problem now, then leave things as they are. If it might be a problem in the future..........................deal with it then. It is far too warm to do meaningful tests and make cooling adjustments now.

My temps of the CPU I note are an average of 10 seconds, in terms of fan control. I do not bother about "spikes" but trends.

Surprisingly my Asus board doesn't do this, I'm using AI tuner out of ease of use and being lazy for a 47% overclock which sits it nicely at 5.1ghz all core and i think around 4.1ghz ecore but it only pumps 1.29v for this which is about what i'd expect when i tried a manual clock. Sits around 55c while gaming on Star citizen and R23 hits about 85c so i have abit of headroom still to go higher but the SP value on the chip isn't the best at 77 so i don't think it will push more volts for 5.2ghz.

 

[V F]

I absolutely do not run the likes of CB, especially in this weather. CB is not really a means to an end in terms of assessing how you typically use your PC. Altho some seem to enjoy spending lots of time involving that.
If it's not a problem now, then leave things as they are. If it might be a problem in the future..........................deal with it then. It is far too warm to do meaningful tests and make cooling adjustments now.

My temps of the CPU I note are an average of 10 seconds, in terms of fan control. I do not bother about "spikes" but trends.

How does it not? What if you're into 3D modelling/rendering for hours or encoding videos? It's likely going to do the same thing. Peg all cores 100% for an hour or two = extreme heat. Depending on how complex your project is. The whole purpose of having a good system is not having to worry about thermal throttling later. It should be able to cope now, no matter what you throw at it.