[SOLVED] Undervolting CPU I7 13700KF

[Rayaxar]

I just build my new pc which has a I7 13700KF but i'm seeing people talking about having to undervolt the CPU or limit it's wattage to keep the thing from overheating.
I honestly have no clue how to do it I have tried to look up video's but non use the same motherboard I have and I can't find how do it myself. How much should I undervolt or limit my wattage? I'm using a Z790 AORUS ELITE AX
Thanks in advance!

 

[uWebb429]

@Rayaxar

Is your CPU overheating? Run a full load test like Cinebench R23 and see how hot your CPU gets. Intel says any peak core temperature under 100°C is a safe operating temperature. That is why Intel has been setting the thermal throttling temperature to this value for many, many years. Intel CPUs do not really overheat. They simply throttle and slow down so they always remain at a safe temperature.

If a CPU core reaches 100°C, the CPU is designed to automatically slow down to protect against any long term damage. Most people ignore temperatures and just let the CPU manage itself.

To undervolt you can go into the BIOS and set a negative offset undervolt. Start testing at -50 mV and see if your CPU is stable with this voltage. If it is stable, you can try increasing the amount of the undervolt. Run Cinebench again and see if it works OK without crashing. Are the temperatures any lower? Try some other benchmark tests and games to see if your CPU is 100% stable. If you see a BSOD, you have probably gone too far. Any instability like this is a sign that your CPU could use some more voltage.

To adjust the turbo power limits go into the BIOS and look for PL1 and PL2. It is impossible to say how much heat your CPU cooler is capable of dissipating. If your cooler is only good for 200W then you can set PL1 and PL2 to 200W. If the CPU ever reaches those values, it will automatically slow down so it does not exceed 200W. You can adjust the power limits and have your CPU running at any temperature you like, with some reduced performance of course if you lower these limits too much.

The Intel defaults for a 13700KF are PL1=125W and PL2=253W. Many motherboards at default are setting the power limits to infinity. This is good for maximum performance but can create a lot of heat, especially during any full load stress test.

https://ark.intel.com/content/www/u...700kf-processor-30m-cache-up-to-5-40-ghz.html

 

[USAFRet]

I just build my new pc which has a I7 13700KF but i'm seeing people talking about having to undervolt the CPU or limit it's wattage to keep the thing from overheating.
I honestly have no clue how to do it I have tried to look up video's but non use the same motherboard I have and I can't find how do it myself. How much should I undervolt or limit my wattage? I'm using a Z790 AORUS ELITE AX
Thanks in advance!

Don't chase a problem you don't yet have.

Build the system.
See what happens.
Later, address any problems.

 

[Rayaxar]

Don't chase a problem you don't yet have.

Build the system.
See what happens.
Later, address any problems.

Thing is, I don't feel like having an enormous amount of extra heat and power consumption for barely any gain. I have just said the wattage at the intel default and it's running great

 

[USAFRet]

Thing is, I don't feel like having an enormous amount of extra heat and power consumption for barely any gain. I have just said the wattage at the intel default and it's running great

Nowhere in your post did you indicate a problem that you currently have.

Just..."i'm seeing people talking about.... "

 

[Rayaxar]

Nowhere in your post did you indicate a problem that you currently have.

Just..."i'm seeing people talking about.... "

I never said I have a problem but why have my cpu life span cut down and get a bigger electricity bill for 2 fps more?