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High Mainboard Temp

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October 25, 2013 6:47:37 PM

Pleas take a look at this:

It says my mainbord temperature is above 100 C at steady state. Now, I'm placing my hand over the chassis/case where the mb should be but its pretty cool. the only warm part is where the hard drive is. Anyone has an idea whats going on?

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a b à CPUs
October 25, 2013 6:52:47 PM

Yeah that is likely a bad sensor, if it was that hot you'd likely smell it
Also try another temp monitoring software
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October 25, 2013 6:53:03 PM

That mainboard temp is probably your northbridge temp, which is a built in chip. On cheaper models the northbridge cooler doesn't always have a fan and some run hotter than others. What motherboard do you have?
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October 25, 2013 7:31:43 PM


P1nnacle said:
That mainboard temp is probably your northbridge temp, which is a built in chip. On cheaper models the northbridge cooler doesn't always have a fan and some run hotter than others. What motherboard do you have?


I bought the asus M51ac-b07 ( I upgraded the gpu and psu). So, I dont know exactly what mb i have but, when i asked on Toms, i was replied: ASUS P8H61-M motherboard.
So i assume thats what i have.
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October 25, 2013 7:39:22 PM

Well if you have a H61 chipset, something is very wrong with your motherboard, either your heatsink came loose somehow or your motherboard is about to kick the bucket. I'd inspect it and see if there is visible damage near the heatsink, but I think my diagnoses will probably be back up your files, shut it down, and don't turn it back on until you have a new motherboard in there, because that one is going to go and probably try to drag some other components with it.
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October 25, 2013 7:45:16 PM

ok, thanks man. Ill see what others have to say then ill decide want to do.
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a b à CPUs
October 25, 2013 7:50:46 PM

If that motherboard is the correct model it doesn't even have a northbridge heatsink??? Wth was ASUS thinking? Only has southbridge heatsink
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a b à CPUs
October 25, 2013 8:00:26 PM

I checked it out, if I'm reading intel correctly, I think that there is no northbridge, and that heatsink is covering a mixed ICH/IOH. Either way, the diagram only shows a single piece chipset. H61 diagram
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October 25, 2013 8:04:44 PM

P1nnacle said:
I checked it out, if I'm reading intel correctly, I think that there is no northbridge, and that heatsink is covering a mixed ICH/IOH. Either way, the diagram only shows a single piece chipset. H61 diagram


That's "interesting", hmm I haven't heard of anyone else with this problem. Have you tried another program to look at the temp?
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a b à CPUs
October 25, 2013 8:08:40 PM

A good idea might be to stick your hand in there and touch the heatsink/ mosfets. If they are running at 100+ C, you'll be able to tell (I'm serious, as long as you don't touch them long you won't get burnt).

Touch test never lies, but the hover test is misleading.
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October 25, 2013 8:23:21 PM

yea im pretty sure i would be able to feel 100C just by touching the chasis. I mean thats stp boiling conditions for water lol. So its probably some issue with the software or sensor compability i might think. If it does blow up, i can change it for a new one since its under warranty.
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a b à CPUs
October 25, 2013 8:28:40 PM

PoohnNooblet said:
yea im pretty sure i would be able to feel 100C just by touching the chasis. I mean thats stp boiling conditions for water lol. So its probably some issue with the software or sensor compability i might think. If it does blow up, i can change it for a new one since its under warranty.


Trust me, the hover test is misleading. First off, it's going to be a pinpoint temp coming off one specific component. If the airflow in your case is good, you will notice little ambient change around the affected area. You need to get in there and get your hand real close if you aren't comfortable with touching. Or you could buy a handy infrared thermometer. Let me repeat: the hover test is misleading

Whenever I have a heat related issue, I just leave the side of my case off and get my hands in there to figure out where the problem is, then use my ir thermometer to monitor it.

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October 25, 2013 8:46:41 PM

P1nnacle said:


Whenever I have a heat related issue, I just leave the side of my case off and get my hands in there to figure out where the problem is, then use my ir thermometer to monitor it.



well I'm not comfortable opening up my computer no matter what people say about how easy it is. When I have a spare one ill try messing with it. Thanks for your answers
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a b à CPUs
October 25, 2013 8:50:29 PM

Well, sorry we couldn't be more help. Like i said earlier, I think this is probably an indication of a failing mainboard, I'd definitely get it checked out soon if you plan to continue using it.
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