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tmt
Advanced Member
2766 Posts |
 Posted - 06/20/2010 : 12:53:38
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So, the only issue is that it differs from other tools, i.e. it accurately tracks
changes on this particular CPU otherwise? Is it always off by 18 degrees? |
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842x5
Starting Member
4 Posts |
Posted - 06/21/2010 : 04:05:44
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the CPU temp readout is wrong not only on Atom. It is also off by about 16 Celsius (too low) on other CPUs, e.g. BattStat reads out 44C, real temp is 60C on Dell D630 with Core2Duo T7500 @ 2.2GHz.
Btw, I checked the Aux temp. It is too low as well. On the D630 the Aux Temp maps to the Nvidia GPU. On other tools it reads, e.g. 55C, at the same time BattStat reads 40C... |
Edited by - 842x5 on 06/21/2010 04:48:11 |
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tmt
Advanced Member
2766 Posts |
Posted - 06/21/2010 : 23:19:14
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Thanks, I'll look into the T7500 issue. I tested with Penryns but maybe not Merom.
On the Aux Temp, what sensor did you choose in the selector? Also, which ones were offered?
They will differ by machine.
Basically the Aux parameter isn't converted in any way by the program, it reads what the
sensor sends. Many ACPI sensors don't give meaningful data, I have discovered. My P7230
reports a constant 27C for its ACPI sensor, though some serious BIOS hacking can
convince it to display what is apparently a sensor below the CPU, which reads several
degrees below the on-die sensor. Very flaky. |
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842x5
Starting Member
4 Posts |
Posted - 06/22/2010 : 09:15:48
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tmt -> "On the Aux Temp, what sensor did you choose in the selector? Also, which ones were offered?"
BattStat offered "ACPI Zone 1" (which doesn't do anything) and "Nvidia GPU". I chose the latter one because it relates to the graphics chip in my laptop (Nvidia Quadro NVS 135M).
It strikes that the temp offset of both, CPU and Aux readings seems to be off by roughly the same amount. Maybe a systematic "feature". Btw, with BattStat 0.98 there was no difference in CPU temp to my reference tool (I8KfanGUI)... |
Edited by - 842x5 on 06/22/2010 09:23:07 |
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tmt
Advanced Member
2766 Posts |
Posted - 06/22/2010 : 12:28:54
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You are the first person to have tested the NVidia GPU support! I implemented it for
a specific platform that turned out to not have temperature monitoring in the chipset.
I thought the mobile NVidias didn't support it at all, but left it in anyway. Let me
poke around on that chip you have, and see if the software support is correct for it. |
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tmt
Advanced Member
2766 Posts |
Posted - 06/22/2010 : 17:18:01
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quote:
Originally posted by 842x5
the graphics chip in my laptop (Nvidia Quadro NVS 135M).
Do you have the NVidia control panel UI installed, and if so does it report the current
GPU temperature in the "Performance" group along the left? What is the difference reported?
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842x5
Starting Member
4 Posts |
Posted - 06/23/2010 : 04:43:32
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quote:
Originally posted by tmt
quote:
Originally posted by 842x5
the graphics chip in my laptop (Nvidia Quadro NVS 135M).
Do you have the NVidia control panel UI installed, and if so does it report the current
GPU temperature in the "Performance" group along the left? What is the difference reported?
Nvidia control panel needs ntune installed. Then it reports GPU temperatures. I ran the stability test: GPU temp went up to 75C but BattStat reading was at 39C static... So it seems that BattStat does not pick up the temp correctly (at least for my setup)
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First release of my Battery Status/Monitoring app
