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Old 01-20-2005, 03:24 PM   #1
bobbens
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offset on lm-sensor?


Ok, i have ane external cpu temp detector (diode under processor). It gives me a temp of ~30C (i have liquid rig set up). Yet my cpu built-in sensor gives me ~60C. That's twice as much. I'm pretty sure it's not that hot, because the motherboard has a built-in alarm for high temperatures i think and 60C is pretty damn hot. Anyone know if there is a way to get it more precise or do i just have to manually turn it down, but then of course it won't have much meaning to have lm-sensors running. Anyone have some advice?

thanks.
 
Old 01-20-2005, 03:42 PM   #2
Mojojo
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If you don't mind me asking what type of liquid cooler are you using? I'm looking into liquid cooling thats why I ask. I have the exact same problem my built in sensor reads 60c in linux. Under lmsensors but my bios reads 55c. These are both temps at idle. But if I reach in an touch the heatsink fan the thing is warm at most. At 60c you should burn off a layer of flesh right? Plus my case temps never go over 35c they would be higher if my cpu was running that high. If your using gkrellm you can adjust the temps.
Now I adjusted it to what my bios reads just to play it safe. I think I narrowed it down to the cheap ass power supply everythings hooked up to though because during extreme load I can feel the heat coming off of the power supply which when the case is closed increases my case temps and then my cpu temp rises. Without a heat gun I really could'nt tell you what my temps are. Lmsensors is good for monitoring your system though if you feel it may be overheating. Plus I like gkrellm running in the backround and the fan speeds seem pretty accurate.
 
Old 01-20-2005, 04:23 PM   #3
bobbens
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I have more or less 25C case temp, but i keep my case open, so it's cool. Let's me play around alot more with it, plus i can feel the GPU temp, and CPU temp more or less.
I'm using basically de-ionized purified water with some anti-algae things from the fish place :P. Doesn't look great but it works smoothly.
Just wondering, what motherboard do you have? I have an A7N8X-X /w nForce2. With the proper motherboard sensor things in windows i think i was getting 45 or so. Not sure, sorta annoying to have two sensors soo far off. Oh well, at least i can read the volt temps properly.
Yeah gkrellm is "da" shit. Since all my fans i use manually control (potenciometers) i don't really use gkrellm for that, but i have like 6 extra plugins that i really enjoy, though my alsa input plugin just reads external input, when it'd be nicer to see ouput.
Maybe the sensors aren't wrong, and the internal heat is 60C, that means that the CPU dissipation is pretty crappy, to have a 30C difference in 1 millimeter... Of course the diode could be off, but i don't think that's the case...
 
Old 01-20-2005, 04:34 PM   #4
Mojojo
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I have a pcchips t12, it a real cheap intel chipset but I wanted socket 478 and this had what I was looking for as far as pci/agp. The socket 775 was to new for me and besides I heard the heat is much greater on the 775.Plus you have to convert over to pci-express
 
  


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