Phenom II CPU Temp - CPU or Core

Associate
Joined
9 Oct 2008
Posts
903
Location
Somerset, UK
Hi, from looking around on the net I’ve seen some debate on what temperature to check from on the Phenom II's. I thought that on HWMon i should be reading off the core temps but others say to look at the CPU temp I just want to clarification on this.
Currently running a 1055t with a 3.6Ghz OC Temps below. - Cooler is a Akasa Venom

 
desktopjei.png
 
CPUID Hardware Monitor does not display AMD chip temps in a helpful way. Displaying the temps of each core can only be an estimate on AMD chips. Because a core reading, is the internal temperature from their die inside the chip, unlike Intel Chips, AMD have no such thermal sensors on the die therefore any so called core readings on AMD Chips are theoretical. AMD Chip thermal sensor monitors the Chip itself as a whole which will be the heat from all six cores. This reading will lag when compared to the core readings

So looking at individual readings core reading on AMD chips cannot be trusted. What makes the whole thing even more confusing is the CPU Temperature reading, which comes from your motherboard. Different motherboards read CPU temps in different ways, creating more inconsistencies, is your head hurting yet?

The answer you really want to know is which is the right reading? The only way to be sure is leave your system idle for a few minutes, until the temperatures drops, and then run Fritz Chess Benchmark. Whichever reading jumps up and cools down the slowest is the reading to rely on. Just make sure it no higher than 60 degrees. I would suggest you use CoreTemp, this will give you a much more reliable reading of your CPU’s temp.
http://www.alcpu.com/CoreTemp/

-----------------------------------------------------------------
Gigabyte GA-MA790FX-UD5P, 955 BE(C2)@ 3.92GHz 1.52V,Geil Value 4GB DDR3-1600,
ATI 5850 1GB(Crossfire), CM90 II Advanced, 1TB Western Digital Caviar Black, 4 HDDs,
XFX 850W BE, Asus Xonar Essence STX, BlackGold HD DVB-T2, Dual Digital DVB-C.
 
You don't look at core temp.
You look at CPU Temp, or TMPIN0.

On Thuban's the difference from "Core temp" to "CPU Temp" is huge, on Deneb not so much.

To the above poster, doesn't matter which program you use, as core temp would monitor the false core temps. Not the CPU temp.

To the OP, your CPU's getting too hot.
 
Last edited:
As above, AMD base their CPU temp limits of the actual CPU temp and not core temps.

Always makes me laugh when you get temps under ambient and people actually believe their cores are showing the correct readings.
 
Here is a quick screenie I just took of mine. 1055T @ 4Ghz - Corsair H50

x28fts.png


That is the highest temps it ever goes on prime 95 as I saw it flickering between 58-60 up and down. Hope this helps.
 
Cheers for clearing this up for me guys, previously I had been overclocking based on Core temp max being 62C, maybe explaining why i couldn’t get to 4Ghz so easily :P. Considering the max temp on prime is around 60C and it never goes that high during gaming the current OC is OK right?

At the moment my system is running almost silently the CPU and ramp up much more if need be.

Sadly the fractal case fans the i filled up most the case with dont push a ton of air.
 
Back
Top Bottom