On Thu, 13 Feb 2020 18:22:12 +1100 Peter Jeremy pe...@rulingia.com said
On 2020-Feb-12 15:23:51 -0500, mike tancsa <m...@sentex.net> wrote: >Not sure about the older Athlon CPUs, but the 2 generations of Ryzen's I >have seem correct as well as an APU > >CPU: AMD GX-412TC >SOC (998.17-MHz >K8-class CPU) OTOH, I'm not confident about temperatures on my APU. The publicly available data just says that the SoC reports "a temperature on its own scale" relative to a Tctl_max which "is specified in the power and thermal data sheet" (that I have been unable to locate). Everyone seems to assume that the step size is 0.125K but I haven't found that publicly documented anywhere. The AMD Product Brief states that the maximum temperature is 90°C but using that as Tctl_max gives me temperature readings that don't look right. >And on a fanless APU > ># sysctl -a dev.cpu.0.temperature >dev.cpu.0.temperature: 62.6C > ># sysctl -a dev.amdtemp.0.core0.sensor0 >dev.amdtemp.0.core0.sensor0: 63.1C At what ambient temperature? I see a similar value from my (idle) APU3 but don't believe the (implied) ~35K junction-to-ambient difference.
I've read that (most?) of the Intel CPUs (everything since "core" versions) has a copy of MINIXv3 on them @ ring -3. Does/could the AMD System Management Network provide any *additional* clues? And *why* won't AMD provide more *definitive* specs? Hoping consumers "cook" their (A|C)PUs and ultimately buy more of their product? --Chris
-- Peter Jeremy
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