That's because it's not °C nor °F but °A (AMD degrees 😀 )
The AMD CPUs report temperature on a scale not known to human beings.

(and despite my tone, I'm serious)

Tried HWiNFO?

I also use HW Monitor amongst others and they report the same, which is impossible if the case temp is 27c for example.

http://www.overclock.net/t/1128821/amd-temp-i … ation-and-guide

I was being serious.

That guide doesn't explain why most AMD chips don't show such illogical below ambient temps. Also CPU temp is always a good few degrees lower than core temp for me.

Of course it does.
The scales are not the same.

Yeah I thought the article was not crystal clear. Seemed to be saying coretemp was only accurate at 45 C. PS. I have a few watches that are spot on twice a day.

Well, according to the guide core temp should show reasonable numbers on OPs CPU during load. That would be about 60C or more in Prime95.

Also what CPU temp is reported?

d1stortion wrote:

Well, according to the guide core temp should show reasonable numbers on OPs CPU during load. That would be about 60C or more in Prime95.

Also what CPU temp is reported?

I don't see where it was said that image was supposed to be representing any kind of load; I see 0% on most of the cores. 😀

ratfink wrote:

Yeah I thought the article was not crystal clear. Seemed to be saying coretemp was only accurate at 45 C. PS. I have a few watches that are spot on twice a day.

Thread linked made sense imho - no different than Intel's "thermal margin" in that it isn't reporting an actual measured value, but the output of an equation that tends not to be very accurate for measuring ambient/idle temperatures (as if the diodes in your CPU were accurate to begin with...). If the system in question isn't showing the temperature values (in OverDrive) exceeding whatever the spec for Core Temp's max is, all is well (the CPU really doesn't care beyond that). Thread did *not* say "only accurate at 45 C" either - it said CoreTemp is designed to read peak and load temps over 45* C accurately, and does not accurately measure idle temps (which is what the screenshot is showing).

It wasn't, but OP didn't give any information on what temps he gets during load. As per the article posted previously they should be more reasonable than what is seen on the image.

If temps are indeed accurate I certainly wouldn't worry about it. My stock fx6300 hovers around 12-19C doing I/O tasks as shown in Linux. If I do make -j7 while encoding movies and playing Mame or Doom I get more like 64C. Got a cooler master myself BTW (slimmer model but still real big IMO).

This thermal margin business does my head in.
I don't really want to know how many degrees it's going to take to get me to the limit, I like to know how many it is now.
Perhaps my brain isn't geared for thermal margins.

I wouldn't worry about it too much - remember, CPU diodes aren't really paragons of accuracy, they're just "good enough" to kick in and prevent thermal runaway. As long as that isn't happening, and the cooler is in working order, you should be good to go.

It's not something I worry about 🤣, just something I like to keep an eye on.
But then, since I put this V6 cooler in place, I've never seen the CPU go over 45c at full load.
It does get very hot indeed where I live, but I only bought the V6 because it looks good and for air cooling, it's one of the best.
My previous CPU, a Phenom II 965 reported more accurate temps.

I don't think this is a question of "accuracy" so much as "understandability" - the FX is seemingly doing what it's supposed to do, it just isn't doing it in a way that makes sense to users (or any other group of humans 🤣).

One thing I would add though - do you have any sort of airflow for the motherboard itself? That's the only "gotcha" with tower coolers - they tend not to provide airflow for all those components right around the CPU (like the VRMs, RAM, passive northbridge sinks, etc). Usually a case fan or PSU fan near-by is enough, but it's just something to keep in mind. Especially if you plan on overclocking.

120mm fans front and rear with variable controllers in the NZXT case.
Any more than that is just overkill.
The PSU fan sucks and blows out the back (bottom in this case) anyway.