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normal for case to be hotter than CPU?
- Thread starter cmdrdredd
- Start date
If your case & CPU temps are equal, I'd guess there's a problem with the temp probe (although I can't say which one). Since the temperature measured being produced by the CPU is a function of the processor characteristics and the ambient temperatures, its virtually impossible for the CPU & case temps to be the same. It'd be like having a CPU that makes no heat!
NYHoustonman
Platinum Member
Use a different hardware monitor program or check the temperatures in your BIOS and tell me what they say.
yes this is possible. You could have a heatsink/fan that is very efficient in disappating heat from the cpu but without proper airflow in the case that heat just fills up the case.
Get some airflow, because your case temps have to be too high if they are even close to your cpu temp.
Get some airflow, because your case temps have to be too high if they are even close to your cpu temp.
no, guys it's possible. Your case won't have the same exact temp across the entire area. It's dependent on where the case temp is measured in regards to the cpu. If the temp is measured right where the air is being dissapated from the cpu then the air is much hotter there. It doesn't mean your entire case is that temp.
If the "Case" sensor is actually measuring the air temp in the case, then without a water cooler (in a case with very poor circulation, but has the radiator cooling from outside air), a peltier or a phase-vapor cooling solution then it is impossible.
If the "Case" sensor is measuring the heat coming off the northbridge or some other place with poor circulation, then its possible, but shame on the mobo manufacturers for such lousy placement of sensors.
Edit: Its also possible that the "CPU" sensor is such a poor implementation that it reads 35C, when its really 65C(or higher). I have very little faith in sensor accuracy even though the mobo manufacturers have access to on-die thermistors and have a simple formula/circuit design (at least from Intel) that will cancel most inaccuracies in their measuring schemes, but they choose not to implement them for whatever reason. I am guessing the real reason has more to do with consumer panic over high temperatures in the more accurate boards and blaming the board for the higher temps (when in reality they have the exact same power dissipation in a different board). I personally would just like simple accuracy, so that I can judge changes in MY system. Then when I ask what my temperature is suppose to be, I will get a more correct answer.
If the "Case" sensor is measuring the heat coming off the northbridge or some other place with poor circulation, then its possible, but shame on the mobo manufacturers for such lousy placement of sensors.
Edit: Its also possible that the "CPU" sensor is such a poor implementation that it reads 35C, when its really 65C(or higher). I have very little faith in sensor accuracy even though the mobo manufacturers have access to on-die thermistors and have a simple formula/circuit design (at least from Intel) that will cancel most inaccuracies in their measuring schemes, but they choose not to implement them for whatever reason. I am guessing the real reason has more to do with consumer panic over high temperatures in the more accurate boards and blaming the board for the higher temps (when in reality they have the exact same power dissipation in a different board). I personally would just like simple accuracy, so that I can judge changes in MY system. Then when I ask what my temperature is suppose to be, I will get a more correct answer.
Well folks, I have the same situation. The cpu temp always reads cooler than the case, or mobo temp. Do I believe it? No, but that's what asus probe, motherboard monitor AND the BIOS all say. In fact as I write this, mobo monitor is reporting a 29c diode temp, 32c cpu temp and 32c case temp. (yes, I have the sensors set up correctly) I'm running an A7N8X w/1700+ o/c'd to 2.2gig, and everything is reporting these crazy low temps. It sucks because I want to know what the real temps are...
BTW I'm using an SLK800 hs with a ys-tech variable speed fan.
BTW I'm using an SLK800 hs with a ys-tech variable speed fan.
I think that it's important to remember that probes don't actually measure the case temperature, but just a particular point on the mobo. I've noticed that with HSF's in which the fan blows down on the mobo, e.g., an SLK800, you can often get high "case temps." I assume that the sensor happens to be located close to the CPU and the warmer air from the HSF is being blown directly onto it. (On an Intel CPU isn't the "CPU" temp is just one part of the CPU, so it's not obvious to me that the HSF couldn't get warmer than the "CPU.") I must say that I've never had a case where the "case" temp was higher than the CPU temp, but I've sometimes seen a very large swing, based on the direction that the fan is blowing.
My shuttle sn41g2 quite often has a warmer cpu than ambient case temps, If you have a fan blowing directly from the outside either by a duct or near as direct and the cpu sucking down it is quite easy to get warmer case temps - to call someone a moron is like pointing the finger
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