MSI Z690 Tomahawk DDR 4 Disable Boost

alphaomega16

alphaomega16

alphaomega16

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Went to do an encode on a video last night and the cpu was quite toasty, I have a Noctua NH-U12 A in a Lancool Mesh II case with a 12700k processor and was thinking about removing whatever the system does to boost speed and the cpu was drawing 155-160w according to cpuz, here is what the temps peaked at all fans at max.
CoreTemp-Scr.png


Anybody more familiar with how it does boosts able to instruct on how to disable, I tried lowering performance of CPU from 100% to down to even 90% in power options to no effect and I don't feel comfortable leaving it at around 80c for 12+ hours.
 
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Turning off turbo boost would be a blunt instrument and likely not a good option for your overall performance and efficiency, particularly since it will massively cap your single core/thread performance which will impact PC responsiveness in short burst tasks.

I'd suggest trying to set manual power limits using PL1/PL2 to try and find an optimal level for your PC. 125 watts is a good place to start.

Ultimately, you're always going to have a hot CPU when you air cool a modern i7/i9.
 
PL1/2 thing is all french to me im afraid, ive never overclocked before, don't mind it running hot but I just thought disabling the overlock for when im encoding overnight would be best and not so loud whilst im sleeping.

Edit
This is it running an encode
cgkxFSy.png
 
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alphaomega16 said:
PL1/2 thing is all french to me im afraid, ive never overclocked before
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Here's an old Anandtech article on the subject:

PL1 is the effective long-term expected steady state power consumption of a processor. For all intents and purposes, the PL1 is usually defined as the TDP of a processor. So if the TDP is 80W, then PL1 is 80W.

PL2 is the short-term maximum power draw for a processor. This number is higher than PL1, and the processor goes into this state when a workload is applied, allowing the processor to use its turbo modes up to the maximum PL2 value. This means that if Intel has defined a processor with a series of turbo modes, they will only work when PL2 is the driving variable for maximum power consumption. Turbo does not work in PL1 mode.

Tau is a timing variable. It dictates how long a processor should stay in PL2 mode before hitting a PL1 mode. Note that Tau is not dependent on power consumption, nor is it dependent on the temperature of the processor (it is expected that if the processor hits a thermal limit, then a different set of super low voltage/frequency values are used and PL1/PL2 is discarded).
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www.anandtech.com

Why Intel Processors Draw More Power Than Expected: TDP and Turbo Explained

www.anandtech.com www.anandtech.com

Many boards come "out of the box" with unlimited power and unlimited boost duration.
 
Had been thinking about conquering my fears and getting an AIO and one of those Kryosheets but needing to dismantle my PC again to do it must be overcome first lol.
 
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alphaomega16 said:
Had been thinking about conquering my fears and getting an AIO and one of those Kryosheets but needing to dismantle my PC again to do it must be overcome first lol.
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I'd give the power limits a try first. A lot of Intel i7/i9 users have great success with it, losing only a little performance, but making the CPU much more manageable and easy to cool in long run stuff.
 
ok, I had a look around in bios couldnt find PL1/2 but I am assuming its name is one with power limit and 4096 next to it, I found out why it was saying 4096 but god knows why its that high for a water cooler because no water cooler is that good.
RoeSwqu.jpeg

I switched it to tower air cooler but now it clocks up to 5ghz instead of capping out at 4.7 (I don't believe ive seen over 5,000 before).

So the only setting I would have to touch is the ones that had 4096 in them below? Also shouldn't they be the same and I think ~140w cap would do just fine.
t7ghDEV.jpeg

Edit

Ok those images came up really big so I put them in spoiler incase chat goes further.
 
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alphaomega16 said:
ok, I had a look around in bios couldnt find PL1/2 but I am assuming its name is one with power limit and 4096 next to it, I found out why it was saying 4096 but god knows why its that high for a water cooler because no water cooler is that good.
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I think in this BIOS PL1 and PL2 are the long duration and short duration.

Many motherboards default to unlimited, so that's not unusual.

Normally you have them different because you need a higher power limit to enable full performance in short bursts, but you don't want long run workloads to be at that same max power setting.
 
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