rohitmandrekar / open-hardware-monitor

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CPU temperature #6

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
What is the expected output? What do you see instead?
The CPU temperature is always 5 degree Celsius lower than other similar 
software shows. I am not sure which software shows the real temp but I am 
just making you aware of this fact so you may want to look into it.

What version of the product are you using? On what operating system?
Latest version on Windows 7

Please provide any additional information below.

Please attach an OpenHardwareMonitor.Report.txt, which can be created with
"File / Save Report" in the Open Hardware Monitor folder.

Original issue reported on code.google.com by linasel on 24 Feb 2010 at 6:20

GoogleCodeExporter commented 9 years ago
Which CPU do you have? Which software did you compare with? Can you attach an
OpenHardwareMonitor.Report.txt file?

Original comment by moel.mich on 24 Feb 2010 at 6:32

GoogleCodeExporter commented 9 years ago
I sent you an e-mail with all the necessary attachments. I hope you have 
received it.

Original comment by linasel on 2 Mar 2010 at 5:09

GoogleCodeExporter commented 9 years ago
No I haven't received any email. To which email did you send it? If you haven't
already, then try m.moeller@gmx.ch

It would be interesting what core temperatures the programs Core Temp, Real 
Temp and
CPUID HWMonitor show for your CPU. 

Original comment by moel.mich on 2 Mar 2010 at 11:47

GoogleCodeExporter commented 9 years ago
Got your comment and I just sent an e-mail to the address you have indicated. 
I will also attach here the snapshots and the .txt file you have requested. 
If there is anything else you need, let me know and I will respond as quick as 
I can.
Thanks

Original comment by linasel on 3 Mar 2010 at 12:08

Attachments:

GoogleCodeExporter commented 9 years ago
The problem is, there is no really clear (or often none at all) specification 
for the
TjMax value, which directly offsets the displayed temperature. The Open Hardware
Monitor assumes a TjMax of 95°C for this CPU. The CPUID HWMonitor seems to use 
100°C.
Others think it should be 85°C in this case. 

Maybe I could implement a better TjMax guessing algorithm for mobile CPUs based 
on
this table
(http://software.intel.com/en-us/articles/mobile-intel-core2-processor-detection
-table/)
and Specs for the mobile CPUs. But it is a bit unclear right now, if the result 
is
then really better.

If the other tools Core Temp, Real Temp and CPUID HWMonitor (and perhaps Lavalys
Everest) agree on the same TjMax and only the Open Hardware Monitor uses a 
different
one, then it should be fixed. Otherwise I think I will leave it as it is.

Original comment by moel.mich on 3 Mar 2010 at 12:26

GoogleCodeExporter commented 9 years ago
I got your point. 
I also did a limited research on my own and it looks like other software use 
either 
85°C or 100°C for TjMAX, as you mentioned earlier. Intel specifies that the 
range 
should be between 70 and 120. Leaving the value at 95°C which is half way in 
between 
Intel's range I think it's a good idea.

Ho about the battery specifications? The other software shows it on the screen 
while 
open-hardware-monitor doesn't. Can you do anything about it?

Thanks

Original comment by linasel on 3 Mar 2010 at 12:50

GoogleCodeExporter commented 9 years ago
Ok, then I will leave the TjMax as it is for now. Battery monitoring will be 
added.
I'll change your issue 4 into an enhancement for battery sensors, and close 
this one.

Original comment by moel.mich on 3 Mar 2010 at 3:25

GoogleCodeExporter commented 9 years ago
Just like to add to this discussion re: core temps.
I'm using OpenHardwareMonitor (OHM) ver. 0.3.2 b and get the following temps 
using a Core2 6400 CPU with XPSP3 pro:
Core Temp: 5 deg C lower than OHM
Real Temp (with TjMax set at 90 deg): Same as OHM
HWMonitor: 5 deg C lower that OHM
Everest: 5 deg C lower than OHM

Original comment by RayKna...@gmail.com on 8 Oct 2011 at 5:31