The core clock was lowered because of the "IA: Thermal Velocity Boost?" issue.
The core clock was lowered because of the "IA: Thermal Velocity Boost?" issue.
I'm working on overclocking my i11700k based on the Pinned "CPU overclocking guide and tutorial for beginners" by Darkbreeze. I have all cores at 4.8Ghz and am doing stability and thermal tests. When using Prime95 small FFTs with AVX disabled, HWiNFO shows the core multiplier starts at 48 then drops to 46 after a while. The only reason it limits is IA: Thermal Velocity Boost. My temperatures seem stable around 70°C, but I'm concerned about preventing self-downclocking.
I thought TVB was exclusive to i9s? Was that updated in the latest bios?
Anyway, TVB provides a 100mhz boost across the CPU's entire boost curve, but it only works up to 70°C.
If you're planning to continue this overclocking, you'll likely need to turn it off.
thermal velocity boost in rocket lake reaches 70°C, after reaching this point the boost will decrease. cooling is necessary to achieve longer and stronger boost times, but this occurs under high stress conditions (maximum 95). under regular gaming or everyday PC use, the CPU heat generation should remain significantly lower.
I thought TVB was exclusive to i9s? Was that updated in the latest bios?
Anyway, TVB provides a 100mhz boost across the CPU's entire boost curve, but it only works up to 70°C.
If you're planning to continue this overclocking, you'll likely need to turn it off.
Thank you for the updates. I've turned it off in BIOS and that fixed the issue. It would be useful to have a way to adjust the threshold for TVB to 85C instead of 70C. Thanks again!
Kerberos_20, you're likely referring to Adaptive Boost Technology. It operates with a much higher performance level.
Thermal Velocity Boost behaves as follows:
Above 70°C
1 core active: 4.9GHz
2 cores: 4.9GHz
3 cores: 4.9GHz
4 cores: 4.7GHz
5 cores: 4.7GHz
6 cores: 4.6GHz
7 cores: 4.6GHz
8 cores: 4.6GHz
Below 70°C, the increase would be +100MHz or more across all configurations.
Certain motherboards support speeds beyond 100 MHz. I understand that my Asus desktop board lets me pick between +100 MHz or +200 MHz in the BIOS. It seems possible to adjust the temperature when TVB is running. For optimal and steady performance, I tend to keep TVB disabled.
On some Asus boards, you can modify the TVB temperature settings within the BIOS. I've also noticed a straightforward utility that performs this task, though I don't recall its exact name.
Here is additional information about TVB. Scroll down until you reach the pictures.
https://rog.asus.com/forum/showthread.ph...planations