[Dudeooo2]

In case i use cheap MSI mobo and have CPU diode and CPU temp shown in everest and CPU Diode changes upon loading my CPU with job, although when i use MSI PCalert v4 tool it does not have any secondary temperature sensor just CPU and Sytem.
So my question if CPU Diode is shown by Everest by mistake how can temperature on it be changing when i load CPU? Although strange thing that CPU Diode is lower than CPU temp by about 5 degrees.

[Fiery]

CPU Diode temperature is read directly from the CPU. PC alert 4 does not support that feature.


Regards,
Fiery

[Dudeooo2]

Hmm, but is this normal that diode is lower temp than "cpu"?

[Fiery]

Yes, it is normal.

[Dudeooo2]

Yes, it is normal.

"CPU" temperature means the temperature measured around the CPU socket, whereas "CPU Diode" temperature means the temperature of the CPU core.

How temperature around CPU can be more than inside CPU kind of contradict to common sense.

P.S. So both sensors are on CPU or one on motherboard?

[Fiery]

They're measured by a different diode solution, so the difference could also be due to diode inaccuracy or measuring methodology.

[Dudeooo2]

They're measured by a different diode solution, so the difference could also be due to diode inaccuracy or measuring methodology.

Is it right to assume that "diode" reading is incorrect since it is lower than "CPU" temp?

[Fiery]

No, they're both correct.

[Dudeooo2]

Then i am getting something wrong, "CPU" temperature in Everest is temperature around cpu and "CPU Diode" is somewhere on the cpu, how on the CPU temperature can be more than around cpu, isnt CPU is most heat emitting element in PC?

[Fiery]

They're measured by a different diode solution, so the difference could also be due to diode inaccuracy or different measuring methodology.

[Dudeooo2]

They're measured by a different diode solution, so the difference could also be due to diode inaccuracy or different measuring methodology.

Whatever causes this difference it is incorrect results that I as end user see. Because CPU diode is 22C and CPU is 30C so i going to disable CPU Diode since it shows incorrect results 3400+ sempron cant be 22C even at idle.

[Fiery]

Ah, you have a Sempron FYI, AMD K8-class processors has a known flaw about the on-die CPU temperature diode. Mostly "Brisbane" and "Windsor" cores are affected, but some single-core parts also provide inaccurate temperature readings.


Regards,
Fiery

[Bil]

K5, K6 and K7-class processors do not have a built-in temperature diode.

Why than CPUid reports "Temperature Sensing Diode"
on my (mobile) K6-2+ CPU ? :


 K6_2plus_CPUid_Everest.png (46.93K)
Number of downloads: 0

[Fiery]

Maybe it's because there's a diode, but it doesn't provide a temperature reading that software can read

[Bil]

Maybe it's because there's a diode, but it doesn't provide a temperature reading that software can read

What is this diode intended for than?

[Fiery]

For example overheating protection. So the diode readout is only available for the CPU core, and the CPU will shut itself down when the diode reports overheating.

[dado]

sorry if I didn't notice but what is a normal CPU temperature?

[Fiery]

sorry if I didn't notice but what is a normal CPU temperature?

It depends on CPU model. For AMD processors normal temperature is below 60-65 Celsius, while Intel processors can generally work stable up to 70-75 Celsius or even more.

[dado]

It depends on CPU model. For AMD processors normal temperature is below 60-65 Celsius, while Intel processors can generally work stable up to 70-75 Celsius or even more.

ok......but how correct is everest in that diagnostic....there must be some...how to say it.....+ - in numbers....or I'm wrong....

[Fiery]

In the case you can see a "CPU Diode" temperature or CPU core temperatures, then consider them accurate, and watch them when you check your system for overtemperature.