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14900k problem

Andy Pandy said:
I like the idea of having the best cpu my motherboard can support and it’ll last a bit longer than the 12700k. I’ve tried tinkering with the settings on the 14900k with the intel xtu ai optimisation but the temps easily hit 100 degrees with their settings so I just turn xmp on and have a slight undervolt and all is good now :)

No I’ve not sold the 12700k I probably should though.
Click to expand...

What cooler do you use?

I have a 420mm AIO for my 12700k
 
Andy Pandy said:
I like the idea of having the best cpu my motherboard can support and it’ll last a bit longer than the 12700k. I’ve tried tinkering with the settings on the 14900k with the intel xtu ai optimisation but the temps easily hit 100 degrees with their settings so I just turn xmp on and have a slight undervolt and all is good now :)

No I’ve not sold the 12700k I probably should though.
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I noticed on my Asus board, if i enforce all limits and do a manual overclock using an offset on the vcore, i get much better stability and temps compared to Asus Multi core enhancement where my temps can easily high 90+ even on custom watercooling.

Im running 5.2ghz p core and 4.1 e core with a 4.3 bus and it stays below 80c on custom cooling. This is also with overclocked memory at 6200mhz on a 5600mhz DDR5 kit.

I dont think i can get much more out of this without, the next logical step would be a 14700k so waiting on Black Friday deals to come round.
 
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Andy Pandy said:
I have a 360mm Corsair h150i elite lcd. I’m using thermal grizzly kryonaut paste too to try get the temps as low as possible.

Are you tempted to get the 14900k?
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Yes, absolutely.
But I'm also reminded at how easy (?) the 14900k can be to hit its thermal limits.
I have noted that the game, as an example, Cities Skylines 2, utilises the 12700k P and E cores a lot. I posted a video showing that.
So I'm not sure how the 14900k would hold up without hitting its max too often.
They can be both power and heat demanding.
 
Jay85 said:
I noticed on my Asus board, if i enforce all limits and do a manual overclock using an offset on the vcore, i get much better stability and temps compared to Asus Multi core enhancement where my temps can easily high 90+ even on custom watercooling.

Im running 5.2ghz p core and 4.1 e core with a 4.3 bus and it stays below 80c on custom cooling. This is also with overclocked memory at 6200mhz on a 5600mhz DDR5 kit.

I dont think i can get much more out of this without, the next logical step would be a 14700k so waiting on Black Friday deals to come round.
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Is that with a 12700k..? What vcore or offset and LLC are you using?

Thanks
 
Vimes said:
Is that with a 12700k..? What vcore or offset and LLC are you using?

Thanks
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Yes 12700k. My SP score is only 77 as well.
Cannot remember the LLC, might be level 5

Vcore 1.34v
Vcore auto
Offset + 0.01 (let me confirm this, i did it last night but forgot already lol)

It's stable on R24 benchmark single and multi test.

Temps topped out around 80c.
 
Jay85 said:
Yes 12700k. My SP score is only 77 as well.
Cannot remember the LLC, might be level 5

Vcore 1.34v
Vcore auto
Offset + 0.01 (let me confirm this, i did it last night but forgot already lol)

It's stable on R24 benchmark single and multi test.

Temps topped out around 80c.
Click to expand...
Thanks. It would be interesting to see what the vxore is when it is being maxed on the multi core testing of R24. Especially query a higher LLC and a positive offset for the vcore.
 
Vimes said:
Thanks. It would be interesting to see what the vxore is when it is being maxed on the multi core testing of R24. Especially query a higher LLC and a positive offset for the vcore.
Click to expand...

From memory it was 1.34v on the vcore maxed out on all cores and threads on R24 multi core test. I don't remember seeing anything different but will screen capture it anyway later tonight for you.

Just need to check what my LLC setting is and what my offset is. I remember tinkering around with it for some time last night trying a lot of different settings. I had previously gotten 5.1 p core stable for some time beforehand but fancied upping my game so pushed ahead for the 5.2ghz.
 
Vimes said:
Thanks. It would be interesting to see what the vxore is when it is being maxed on the multi core testing of R24. Especially query a higher LLC and a positive offset for the vcore.
Click to expand...

Just checked, can confirm

Vcore auto
offset + 0.08
LLC level 5

Full load test R24 bench sits around 1.35v
 
Jay85 said:
Just checked, can confirm

Vcore auto
offset + 0.08
LLC level 5

Full load test R24 bench sits around 1.35v
Click to expand...

You are doing well with that overclock and voltage.
It just shows, understanding variance with CPU's, how different boards apply differing amounts of vcore voltage.
If I use an offset similar to you, and vcore in auto, I would get around 1.45 to 1.5 as it approaches full load. That is with the LLC set to high, just a little lower voltage if set to medium.
It does not need anywhere near that vcore, but some boards just over supply the voltages.

I keep meaning to follow more of the SkatterBencher type guides on YT. Never happens tho.
 
Vimes said:
You are doing well with that overclock and voltage.
It just shows, understanding variance with CPU's, how different boards apply differing amounts of vcore voltage.
If I use an offset similar to you, and vcore in auto, I would get around 1.45 to 1.5 as it approaches full load. That is with the LLC set to high, just a little lower voltage if set to medium.
It does not need anywhere near that vcore, but some boards just over supply the voltages.

I keep meaning to follow more of the SkatterBencher type guides on YT. Never happens tho.
Click to expand...

Yeah it varies massively, it really comes down to the board AND understanding how your board works. I'm fairly use to Asus Z boards now so i have a fair understanding on what they do and how it functions. For anyone else overclocking on a Asus board i would highly recommd disabling asus multi core enhancement as it pushes way too much voltage.

For instance, if i left that on and set my vcore to auto without any offsets and left the overclocking to auto where Asus will overclock it for you, the board will automatically try and push 5.4ghz at 1.5v which absolutely destroys my temps, easily hits 100c+ instantly.

I haven't tried for 5.3ghz yet but i don't think its feasible, will probably need 1.4v or higher to reach that and temps will be above 90c at full load all cores loaded.

I've also disabled thermal velocity boost, i found that was causing some stability issues. No idea why as it shouldn't if im running a manual overclock.
I've also pushed my SA VID voltage to 1.265v for better stability as well, this might help you. Worth tinkering with if you can post but can't get it stable on a bench.
 
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Jay85 said:
Yeah it varies massively, it really comes down to the board AND understanding how your board works. I'm fairly use to Asus Z boards now so i have a fair understanding on what they do and how it functions. For anyone else overclocking on a Asus board i would highly recommd disabling asus multi core enhancement as it pushes way too much voltage.

For instance, if i left that on and set my vcore to auto without any offsets and left the overclocking to auto where Asus will overclock it for you, the board will automatically try and push 5.4ghz at 1.5v which absolutely destroys my temps, easily hits 100c+ instantly.

I haven't tried for 5.3ghz yet but i don't think its feasible, will probably need 1.4v or higher to reach that and temps will be above 90c at full load all cores loaded.

I've also disabled thermal velocity boost, i found that was causing some stability issues. No idea why as it shouldn't if im running a manual overclock.
I've also pushed my SA VID voltage to 1.265v for better stability as well, this might help you. Worth tinkering with if you can post but can't get it stable on a bench.
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Thanks. Overall I do get the impression that the RL CPU's tend to be able to be pushed a little further in terms of overclocking potential than AL. I did mention the "Skatterbencher" type guides as he often looks at per core overlocking with offset voltages at certain frequencies, more to it than that.
There can be an issue with bench marks and stability tests are fine, when pushed. But sometimes simply browsing or looking at YT vids can cause a crash. Hence, well part of my reasoning, was to look at what those SB type tutorials offered. Context tho, for me, has always balanced what is possible to push and what is useful in gains for my usage. For some just seeing the numbers and the achievement is enough, and that's fine.
 
Right little update.....

I got hold of a z790 and tried it with my 12700k and everything is working great. I've repurchased an 14900k from OCUK which I'm hoping will work this time. My old z690 is still in rma which ill sell the replacement once its all sorted out. Fingers crossed for tomorrow.
 
meh? said:
My Ram only boots at 6200mhz even with relaxed timings. I either need some better ram or I'm doing something wrong somewhere :(
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Could be a poor IMC on the cpu, it happens. Comes down to the board as well so there's quite a lot of factors to consider. I got my 5600 kit to 6200 and left it there with okay timings in gear 1 so im happy.

As someone else has mentioned, any higher and its diminishing returns in gaming aside from benching.
 
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