I can't undervolt.

[farizmammadovbakhis150e02cf]

Hello, I am using the MSI B760 GAMING PLUS motherboard with an i7-12700 processor. When I run the Cinebench test, CPU core temperatures exceed 90°C. I want to undervolt through the BIOS, but I can't find the CPU undervolt option.

Where can I undervolt to set the voltage to 1.25V?

 

[citay]

It's better to do it according to this Guide: How to set good power limits in the BIOS and reduce the CPU power draw.

 

[farizmammadovbakhis150e02cf]

It's better to do it according to this Guide: How to set good power limits in the BIOS and reduce the CPU power draw.

Thank you, May I make this setting? :
Intel default recommend.
LP1(LONG DURATION POWER) - 125W, LP2(SHOR DURATION POWER) - 190W
CPU CURRENT (A) - dont know
I get 82° celcium. But on boost after long duration power I get cpu 60-65°. What you prefer about this settings? If I increase long duration power 125 to 150 its bad for my cpu working?. I want stabil long life usage.

 

[citay]

If your cooling can keep it below 90°C at all times, you can even set both power limits to 190W, it's no problem. The Short power limit being so much higher was mainly used for getting better benchmark numbers in the launch reviews, if a benchmark can finish in under a minute. But those numbers that Intel states for these CPUs, they have little relevance for you, each system and cooling is individual, and Intel doesn't know what other hardware/cooler you use. That's why i explain how to reach good values for your individual system / cooling. This step 1) from the guide is only about protecting your cooling, so it's enough if you keep the temperatures from being in the 90° range. If your cooling is good and it can deal with 190W, then you can set 190W permanently (= for both limits).

Then, in step 2), the problem is that the B-series chipset board prevents it from having the best effect. Because with that chipset you won't have the ability to disable a certain setting "IA CEP Support" (or disabling it is not effective). You can - and should - lower "CPU Lite Load" a bit, but often it's only possible to to Mode 12 to 10, much lower and the performance will decrease dramatically. But even something like that is much better than Mode 16 or whatever the default is.

 

[farizmammadovbakhis150e02cf]

If your cooling can keep it below 90°C at all times, you can even set both power limits to 190W, it's no problem. The Short power limit being so much higher was mainly used for getting better benchmark numbers in the launch reviews, if a benchmark can finish in under a minute. But those numbers that Intel states for these CPUs, they have little relevance for you, each system and cooling is individual, and Intel doesn't know what other hardware/cooler you use. That's why i explain how to reach good values for your individual system / cooling. This step 1) from the guide is only about protecting your cooling, so it's enough if you keep the temperatures from being in the 90° range. If your cooling is good and it can deal with 190W, then you can set 190W permanently (= for both limits).

Then, in step 2), the problem is that the B-series chipset board prevents it from having the best effect. Because with that chipset you won't have the ability to disable a certain setting "IA CEP Support" (or disabling it is not effective). You can - and should - lower "CPU Lite Load" a bit, but often it's only possible to to Mode 12 to 10, much lower and the performance will decrease dramatically. But even something like that is much better than Mode 16 or whatever the default is.

• I'm a bit hesitant to push the temperature up to 90°C. If I set PL1 so that the CPU doesn't exceed 75°C, would that be an issue? NVIDIA recommends PL1 at 125W. Would increasing this cause any problems if the CPU stays under 75°C?
• Would it be a healthy setting if PL1 = PL2? That would mean the CPU is always running at high power. So, to keep things simple, I will monitor the temperature—if I don't see it exceeding 90°C, then even setting PL1 = PL2 = 200W wouldn't be a problem, right?
• The CPU Current (A) setting is left on AUTO, with a minimum of 1A and a maximum of 512A. What value should I set it to? I couldn't find any information online, but 512A seems extremely high. I'm concerned that leaving it on AUTO might allow it to reach that level.

 

[farizmammadovbakhis150e02cf]

If your cooling can keep it below 90°C at all times, you can even set both power limits to 190W, it's no problem. The Short power limit being so much higher was mainly used for getting better benchmark numbers in the launch reviews, if a benchmark can finish in under a minute. But those numbers that Intel states for these CPUs, they have little relevance for you, each system and cooling is individual, and Intel doesn't know what other hardware/cooler you use. That's why i explain how to reach good values for your individual system / cooling. This step 1) from the guide is only about protecting your cooling, so it's enough if you keep the temperatures from being in the 90° range. If your cooling is good and it can deal with 190W, then you can set 190W permanently (= for both limits).

Then, in step 2), the problem is that the B-series chipset board prevents it from having the best effect. Because with that chipset you won't have the ability to disable a certain setting "IA CEP Support" (or disabling it is not effective). You can - and should - lower "CPU Lite Load" a bit, but often it's only possible to to Mode 12 to 10, much lower and the performance will decrease dramatically. But even something like that is much better than Mode 16 or whatever the default is.

Thank you for your response. I'm slowly starting to fully understand.

In my BIOS, I don't see mode selections for CPU Lite Load as you mentioned. Instead, I only have three options:

Normal

Advanced

NVIDIA Default


I choose Nvidia defaults

 

[citay]

You mean Intel Default, surely. Select Normal, then you should be able lower the mode. Otherwise, show a screenshot, maybe i can see what the issue is.

edit: Only now saw your reply before that. Let me respond to that too:

I'm a bit hesitant to push the temperature up to 90°C. If I set PL1 so that the CPU doesn't exceed 75°C, would that be an issue? NVIDIA recommends PL1 at 125W. Would increasing this cause any problems if the CPU stays under 75°C?

• Would it be a healthy setting if PL1 = PL2? That would mean the CPU is always running at high power. So, to keep things simple, I will monitor the temperature—if I don't see it exceeding 90°C, then even setting PL1 = PL2 = 200W wouldn't be a problem, right?

You can set the power limits so that they result in any temperature you are comfortable with (and also noise, in an indirect way). But never go by what Intel have as their official power limit values. Nobody at Intel has any idea what cooler people will use later. So the values they give will not be perfect for anyone. They are only useful for OEMs building PCs for companies etc., where they can hardcode these values in the BIOS (for example with the non-K CPUs) and then use a simple cooler that can deal with that 65W for example.

For you at home, the value will be either too high or too low (or sometimes both, if PL2 and PL1 are too far apart). But never ideal. To get ideal values for yourself, you need to test how i describe in my guide. Then you can have an additional preference of temperature (up to mid-80°C is ok, i would try to stay away from >90°C, and of course, anything lower is ok too), and the noise your cooling makes according to the fan curves.

If you can stay below 90°C, even up to 250W would be ok with an i9 for example, but the efficiency already steadily declines in that region, to the point where i would not allow more than 250W for any CPU. Of course, your 12700KF will never have such a high power consumption natively. Intel only went completely crazy on 13th/14th gen.

The CPU Current (A) setting is left on AUTO, with a minimum of 1A and a maximum of 512A. What value should I set it to? I couldn't find any information online, but 512A seems extremely high. I'm concerned that leaving it on AUTO might allow it to reach that level.

For IccMax aka "CPU Current Limit", i would recommend 307A. With a 13th/14th gen i7/i9, you can sometimes allow a bit more in case it's stepping in too early there, but never more than 400A (which is one Intel recommendation that i think is good).

 

[farizmammadovbakhis150e02cf]

You mean Intel Default, surely. Select Normal, then you should be able lower the mode. Otherwise, show a screenshot, maybe i can see what the issue is.

edit: Only now saw your reply before that. Let me respond to that too:



You can set the power limits so that they result in any temperature you are comfortable with (and also noise, in an indirect way). But never go by what Intel have as their official power limit values. Nobody at Intel has any idea what cooler people will use later. So the values they give will not be perfect for anyone. They are only useful for OEMs building PCs for companies etc., where they can hardcode these values in the BIOS (for example with the non-K CPUs) and then use a simple cooler that can deal with that 65W for example.

For you at home, the value will be either too high or too low (or sometimes both, if PL2 and PL1 are too far apart). But never ideal. To get ideal values for yourself, you need to test how i describe in my guide. Then you can have an additional preference of temperature (up to mid-80°C is ok, i would try to stay away from >90°C, and of course, anything lower is ok too), and the noise your cooling makes according to the fan curves.

If you can stay below 90°C, even up to 250W would be ok with an i9 for example, but the efficiency already steadily declines in that region, to the point where i would not allow more than 250W for any CPU. Of course, your 12700KF will never have such a high power consumption natively. Intel only went completely crazy on 13th/14th gen.



For IccMax aka "CPU Current Limit", i would recommend 307A. With a 13th/14th gen i7/i9, you can sometimes allow a bit more in case it's stepping in too early there, but never more than 400A (which is one Intel recommendation that i think is good).

Thank you very much! Thanks to you, everything has become even clearer to me.