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Low CPU (Tctl) temp value
#1
Hello. Can you please tell me why is CPU(Tctl) temp so low whilst CPU Package (TSI) is pretty high? Does the Tctl counts its offset as Tdie-offset=Tctl,  or smh else  or it's just a false reading? In your opinion, what's the optimal temp for this CPU (AMD A-10 5800K)?

https://ibb.co/k3D9qs7
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#2
It's because CPUs of those series have thermal sensors that cannot provide accurate temperature values.
AMD later declared that Tctl on those series should not be taken as a temperature value in degrees Celsius, rather a value on some virtual scale.
So it's not possible to know the precise core temperature of those CPUs, users should rather rely on additional sensors in socket (CPU).
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#3
(03-17-2019, 02:24 PM)Martin Wrote: It's because CPUs of those series have thermal sensors that cannot provide accurate temperature values.
AMD later declared that Tctl on those series should not be taken as a temperature value in degrees Celsius, rather a value on some virtual scale.
So it's not possible to know the precise core temperature of those CPUs, users should rather rely on additional sensors in socket (CPU).

Thank you.
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#4
I have an ASUS F2A85-M MB with a AMD A8-5600K APU with Radeon 7560D and have noticed the same different temperature readings with this CPU. However, what I didn't realise was what the MB fan controls were doing. I had repeated shutdowns during hot weather and when the windows 10 software was working hard. Using HWiNFO and checking the BIOS CPU fan control settings I found that the BIOS uses the sensors from the ASUS F2A85-M (ITE IT8603E)CPU readings and NOT from the CPU [#0]: AMD A8-5600K:Enhanced CPU (TSI) and CPU (Tctl) for the CPU Q-Fan Control. Coupled to this, the default settings of the fan and temperatures of the the CPU Q-Fan Control were way out so that basically the fan speed only really increased when it was far too late, causing an overheat and shut down. Yes, I can hear the CPU fan working a lot more now, but no random shutdowns. Also the CHA_Fan Q-Fan Control in the BIOS is linked to the MB temperature readings under the same package. I firmly believe the the Windows 10 package is working the CPU much harder than the original Win 7 package I was initially running.
I thought I would add this in case anybody else is having similar problems.
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#5
Thanks for your contribution.
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