Does microcode 104 guarantee undervolting?

[Obnaa]

Does microcode 104 guarantee undervolting? That is my question. I've been trying to undervolt a 13600KF to no avail. Chinese B760 motherboard says microcode 104.

Any info is appreciated.

 

[unclewebb]

Post a screenshot of the entire FIVR window.

The Windows VBS features including core isolation memory integrity need to be disabled even when you are using microcode 0x104. I have no experience with a Chinese B760 motherboard. If the VBS stuff is turned off, undervolting should work.

 

[Obnaa]

Post a screenshot of the entire FIVR window.

The Windows VBS features including core isolation memory integrity need to be disabled even when you are using microcode 0x104. I have no experience with a Chinese B760 motherboard. If the VBS stuff is turned off, undervolting should work.

VBS and core isolation memory integrity are disabled.

I just figured out that I need to lower both P-Core AND Ring voltages at the same time in BIOS in order for the undervolt to work. I don't know why, but it works that way. Do you have any idea as to why?

 

[unclewebb]

Do you have any idea as to why?

Most Intel CPUs since the 4th Gen work like this. There are two separate registers within the CPU that contain voltage information. Some BIOS versions might allow you to adjust only one voltage and then it will send that information to both registers. Some BIOS versions might have two separate adjustments. ThrottleStop has access to both registers individually. For most CPUs, you will need to adjust both the P core and the P cache (ring) if you want to undervolt.

Same thing for the Intel GPU. You need to adjust both the Intel GPU and iGPU Unslice equally.

 

[Obnaa]

Most Intel CPUs since the 4th Gen work like this. There are two separate registers within the CPU that contain voltage information. Some BIOS versions might allow you to adjust only one voltage and then it will send that information to both registers. Some BIOS versions might have two separate adjustments. ThrottleStop has access to both registers individually. For most CPUs, you will need to adjust both the P core and the P cache (ring) if you want to undervolt.

Same thing for the Intel GPU. You need to adjust both the Intel GPU and iGPU Unslice equally.

I see. I didn't know that. I can adjust the voltage as I please now, even from runtime. Thank you for your help, hope you have a good one.

 

[unclewebb]

Chinese B760 motherboard says microcode 104.

What motherboard model do you have? Did it originally come with microcode 0x104? Did you order it from a Chinese website?

Hopefully after you run this board for a while you can post an update. Some users have been able to drop their full load Cinebench temps by almost 20°C by undervolting the 13600K. You cannot overclock a 13600K on a B760 board so the extra voltage is really not necessary. Avoid updating the BIOS so you do not lose the ability to undervolt.

 

[Obnaa]

What motherboard model do you have? Did it originally come with microcode 0x104? Did you order it from a Chinese website?

Hopefully after you run this board for a while you can post an update. Some users have been able to drop their full load Cinebench temps by almost 20°C by undervolting the 13600K. You cannot overclock a 13600K on a B760 board so the extra voltage is really not necessary. Avoid updating the BIOS so you do not lose the ability to undervolt.

Oh, right. I have JGINYUE B760I SNOW DREAM D5. They have two versions of their latest BIOS, one of them includes the 104.