"Core Temp" - CPU Temerature monitoring tool

[0verl0ad]

Something here is wrong ...

[vintage_guitar]

yea, it is also reporting mine as like 55-60 degrees when it's not even hot to the touch..while speedfan reports the low 30s.. not to mention it shows my vcore as 1.000

[FusionZ06]

Bump for an excellent program...

[lawrywild]

I just touch my heatsink now and if it's only very mildly warm (which it is under full load) I just think nothing more of it and just ignore any other temp readings...

[All_Star]

This program reports a lower CPU temp (6 C°) then Smart Guardian . . .



CPU usage 100% (Prime 95)

[snips]

Feeling stupid to ask this....but what exactly this prog shows? THe higher the core temps the better for the cpu? And how the Load temp is determined? Should i run Load tests and see where the Core#1 nad #2 temps will rise?

And where can i find these readings on the bios? I have DS3 and 6400

[Jimbo]

The lower the temp the better for the core. Its doubtfull wether core temp is accurate or not. You can see cpu and motherboard temps in the bios, or using something like the above everest or something.

[leejsmith]

i have found coretemp and tat report differant temps although they are reading the same sensors.
i dont have pics atm but core temp showed 48C and tat 50C on both cores.
under dual prime coretemp showed 63C on both and tat 59C
When reading thermistors you have to run a formular to calculate the reading from the thermister using a resistance curve could these programs be using something like that or do they read from the probe direct. That would make sense if the formulars are slightly differant.

one other thing i have noticed is the P5B dlx version 1.03G and asus probeII with E6600 show almost the same temps as coretemp perhaps 1-2C out which is good news.

[snips]

I dont get it.....CPu temp in bios or Easytune or ITE smart or motherboard monitor or smth else is showing 41-42 C. AND THIS IS THE TEMP of the CPu. The temp all people measure ok?

But this think shows 54-55 C. Is this temp the actual temp of the core (and so BIOS or other temo measuring progs are useless) the given time or it shows the higher Temp the core can reach before it BURNS-DIES (call it whatever u want)....

And what is the Tcase MAX temp?????

[Jimbo]

heres a thing.. just ran em all and look at that.

Everest -
Mobo 41c
Cpu 46
C1 62c
C2 62c

Speedfan
Mobo 40c
Cpu 49c

Asus Probe2
Mobo 40c
Cpu 49c

Core Temp
C1 63c
C2 63c

Looking at that I would say Core temp is correct.

[Jimbo]

I dont get it.....CPu temp in bios or Easytune or ITE smart or motherboard monitor or smth else is showing 41-42 C. AND THIS IS THE TEMP of the CPu. The temp all people measure ok?

But this think shows 54-55 C. Is this temp the actual temp of the core (and so BIOS or other temo measuring progs are useless) the given time or it shows the higher Temp the core can reach before it BURNS-DIES (call it whatever u want)....

And what is the Tcase MAX temp?????

Dont worry your cpu is fine. Tcase max is the max your motherboard can stand, i beleive?

[snips]

heres a thing.. just ran em all and look at that.

Everest -
Mobo 41c
Cpu 46
C1 62c
C2 62c

Speedfan
Mobo 40c
Cpu 49c

Asus Probe2
Mobo 40c
Cpu 49c

Core Temp
C1 63c
C2 63c

Looking at that I would say Core temp is correct.

Why correct? COres are showing bigger temps that the cpu in your measures...So is this OK?

[Jimbo]

Im just going of everest and coretemp more or less being the same for both cores. and just about all are the same on cpu alone.

[snips]

Yes this is the result we see..
But is it normal that the Cores of the CPU shows Bigger Temps thatn the actual CPU....i mean are these different sensors and if they are why we all pay attension to the CPU temperature when the CORE 1,2 are the temp that is critical....why companies displays this on their BIOS and not the temperature of the cores.....?

[Jimbo]

Becuase the sensor for the cores is read direct of the cpu its built in to it. And the other reading is coming from the motherboard sensor? this is how it was explained to me, anyway.

I dont think 60c is in anyway a danger to the cpu though. Can somone eplain to us a bit better about the cpu and core readings please?

[Jimbo]

CoreTemp reads the actual CPU die temps instead of reading somewhere on the motherboard (which ASUS Probe is doing) apparently lol.

[Jimbo]

Heres our answer...

What does the "CPU Diode" temperature shown on the Computer / Sensor page mean?

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

[fornowagain]

Dont worry your cpu is fine. Tcase max is the max your motherboard can stand, i beleive?

TCaseMax is the maximum temperature of the IHS taken at the center.



Tc temperatures are the ones used in calculations for cooling. Core temps are used for.....er....er.....throttling?

[Fred_Pohl]

Heres our answer...

What does the "CPU Diode" temperature shown on the Computer / Sensor page mean?

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

WRONG! The mobo/bios reads the cpu temp from a thermal diode located on the C2D die, just like every Intel cpu since the P2, and this is the cpu temp read by Speedfan, AsusProbe, etc. iTAT, Everest and CoreTemp read the temps directly from separate digital thermal sensors located on hot spots of each core.

There are no temp sensors located on the mobo, in the socket or near the socket. Since C2D is the only cpu in existance with these DTS on each core, the temps are relevant but in no way diminish the validity of the temp readings reported by the conventional on-die thermal diode which is the only temp reading directly comparable to other cpus with on-die thermal diodes (P4, K8, etc).

[Jimbo]

Right well why does Everest report 3 temps then? cpu/core1/2 and asus probe just 1 cpu temp? and core temp report 2?

[HamidFULL]

but coretemp show about 10c more then Load Temp is which one for OCing?

[nikhsub1]

Here is what I think is going on. Yes speedfan and asus read some on die reading - idle/load jumps very quickly to confirm this. However, the difference between speedfan and Coretemp on most machines is ~ 13-16c with coretemp being hotter. My theory (just a hunch) is that speedfan and the motherboard temp programs are simulating a Tcase value. Yes they are reading ON DIE in the core, but you can manipulate values with this to simulate Tcase - I do believe there is a relationship between Tcase and Tjunction and it can be simulated although probably not a linear relationship. Of course, it is not a TRUE Tcase value as the only way to get this is to cut a channel in the IHS and place a probe in the center of the IHS. Coretemp and the Intel Thermal Analysis Tool I believe are reading the DTS at is raw value, meaning both programs are just displaying what the DTS is telling them. Again, there is no INSOCKET thermistors with C2D.

[Fred_Pohl]

Right well why does Everest report 3 temps then? cpu/core1/2 and asus probe just 1 cpu temp? and core temp report 2?

Apparently Everest is reading all 3 sensors while Asus Probe, Speedfan, Easytune, etc. are only reading the conventional thermal diode. One thing I am very certain of is that Intel cpu temps haven't been read by mobo thermistors since the pentium days.

[momomo6789]

mine Reads 20c + over my bios @ idel and @ load over 70+c ERR wth Bug aso 1.000 volts really 1.74

[leejsmith]

Here is what I think is going on. Yes speedfan and asus read some on die reading - idle/load jumps very quickly to confirm this. However, the difference between speedfan and Coretemp on most machines is ~ 13-16c with coretemp being hotter. My theory (just a hunch) is that speedfan and the motherboard temp programs are simulating a Tcase value. Yes they are reading ON DIE in the core, but you can manipulate values with this to simulate Tcase - I do believe there is a relationship between Tcase and Tjunction and it can be simulated although probably not a linear relationship. Of course, it is not a TRUE Tcase value as the only way to get this is to cut a channel in the IHS and place a probe in the center of the IHS. Coretemp and the Intel Thermal Analysis Tool I believe are reading the DTS at is raw value, meaning both programs are just displaying what the DTS is telling them. Again, there is no INSOCKET thermistors with C2D.

but why do tat and coretemp show differant temps if they both read the same on die probe there must be something else they are doingto the data.
i see 4C differance under load.