According to AMD Specs the Maximum Operating Temperature of your ThreadRipper is 95c. So if it is reaching 93-94c at the hottest your AIO is doing it job of preventing the processor from overheating, barely.
Once it reaches 95c or higher the processor will automatically throttle to decrease the temperature back to 95c or lower.
Also in BIOS you can disable PBO to decrease temperatures on the CPU which is AMD's way of safely overclocking the processor.
Found this article about PBO concerning the Threadripper 7000 series processor and the heat issue is causes: https://www.pugetsystems.com/labs/articles/AMD-Ryzen-7950X-Impact-of-Precision-Boost-Overdrive-PBO-o...
Introduction
With the recently launched AMD Ryzen 7000 Series desktop processors, we saw some terrific performance gains in our Content Creation Review article, but like many other reviewers, we found that these CPUs run extremely hot. Seeing CPU temperatures of 95º Celsius was fairly common, and we were lulled into the mindset that this was normal since it matched what everyone else was seeing and that even AMD was telling people that 95C was "normal".
It turns out, however, that these high temperatures are not at all what we should be seeing with these new CPUs.
The issue is that the motherboard we used (the Gigabyte X670E AORUS MASTER) was defaulting to overclocking the CPU beyond AMD's official specifications. From what we have seen, this isn't restricted to Gigabyte motherboards, but something that almost every brand seems to be doing. This also isn't something entirely new, or restricted to AMD. On the Intel side, we have dealt with a setting called "MultiCore Enhancement" for years, which allows the CPU to run all the cores at the maximum boost frequency when they should be scaling based on the number of cores that are being used.
In the case of our X670E motherboard, it is two specific settings that we found to be causing the CPUs to run at dramatically higher temperatures:
- Core Performance Boost (CPB) allows the processor to run faster than its rated frequency when below power, temperature, and current specifications.
- Precision Boost Overdrive (PBO) allows the processor to run beyond the defined voltage values to the limits of the board, and allows it to boost at higher voltages for longer durations than default.
These two settings are similar, and in many ways two sides of the same overclocking coin. CPB allows the CPU to run faster as long as there is thermal and power headroom, while PBO pushes the voltages to allow the CPU to clock higher.
We will note that the Ryzen Master software you can use with the Ryzen 7000 series has some additional ways you can affect things like power draw and temperature – including an "Eco Mode" – but we always prefer to do our configurations directly in the BIOS. Especially since many settings are not saved across user profiles, or after we sysprep Windows to prepare it for the end user, we try to avoid software-based settings as much as possible
One of the biggest factors in the CPU temperature is Room Ambient Temperature. In my PC case if my room temperature is 82f or higher my CPU, SSD, & GPU all run several degrees warmer on average then when the Room Ambient Temperature is at 79F, as an example only.
My PC (CPU, GPU, & SSD) runs several degrees hotter when my room temperature is 82f or higher. At 79f my PC runs much cooler on average.
EDIT: Here is another good article about PBO and it effects on the new Threadripper 7000 series processor besides voiding your AMD Warranty when enabled in BIOS: https://skatterbencher.com/2023/11/21/9-new-things-about-overclocking-ryzen-threadripper-7000/
