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Sorry for the late reply. ASRock sent me a beta BIOS which fixed the ACPI CPPC issue. Now the favoured cores are reported correctly in HWiNFO, Intel XTU, and Windows Event Viewer based on the overclocked ratio.

I have a W790 board which supports the new Xeon W-2400 and W-3400 CPUs. There is a new Level 3 AMX / TMUL Turbo ratio offset, beyond AVX-512, which is not shown in HWiNFO. HWiNFO shows offset values for VCCDDRD and some other FIVR voltages which are always reported as 0.0. The CPU does not...

It turns out that the preferred cores order in HWiNFO is randomized on each reboot. On BIOS 3.04 on my ASRock W790 WS board, the "Highest Performance" counter reports 255 for all CPUs. Perhaps HWiNFO should display a warning that preferred cores are not accurate if all of them have the same value.

Did you figure out why Windows isn't using CPPC? I have the same issue on my Xeon W7-2495X and ASRock W790 WS on Windows 11 22H2 Build 22631.1830. HWiNFO shows the preferred cores correctly, but Windows Event Viewer shows the same value for all cores. The scheduler does not use the preferred...

Just the Mellanox mget_temp utility I linked above. It would be cool to integrate it into HWiNFO for logging purposes as a custom sensor. Is repeatedly writing to the registry the only way to supply data? https://www.hwinfo.com/forum/threads/custom-user-sensors-in-hwinfo.5817/

I wanted to monitor the same ConnectX-4 card in my desktop PC under load with the extra heat from the CPU and GPU. It's prone to overheating and dropping the link. There's no IPMI on my desktop. I had to put a 40 mm fan in my server next to the NIC to keep it under 105 C!

Just learned that server add-in cards have a dedicated IPMI bus for sensors. https://docs.nvidia.com/networking/pages/viewpage.action?pageId=25139428

How does the Supermicro BMC continuously monitor the Mellanox adapter temperature right from boot time without a driver at all? Presumably they have a supported list of hardware for which they detect the sensors, but there seems to be a way to poll the temperature directly from the hardware...

The Mellanox network add-in cards also have a temperature sensor which is displayed in the Supermicro BMC. Since these are add-in cards, there must be a standard way the BMC uses to detect that a temperature sensor is available. The BMC also shows the temperature for the onboard Intel 10 GbE...