Motherboard idling at 50C = too hot?

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simas290

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Sep 15, 2012
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Good day,

After just yesterday completing my first build i ran into a problem, that is causing me quite the headache. It seems that in idle state my mobo is runing a 50-52C temperature, and strangely it seems to cool down to 38-45C while computer is under load. Here is my rig:

Intel Core i5-4670K
MSI H87M-E33
8gb ram
PSU Seasonic S12II-620 620W
ASUS GTX760-DC2OC-2GD5 2048MB
ATX6236 Case + fan on the back of it

So i am wondering if it is a tolerable temp or will it shorten my mobo lifespan?Because there seems to be all kinds of opions considering this on the internet. Some people say its dangerous while others, like people on this thread, http://forums.anandtech.com/showthread.php?t=1285719 (yes, i realize that's a very old thread,but still) say that's not a problem. I hope that it's nothing to worry about, but i realize that is highly unlikely.

Thank you in advance.
 
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No one is going to be able to guess the temperature difference with an extra fan. Extra air moving will lower the temperature.
No one is is going to be able to guess how long your components will last. Current temperatures are really not a problem but lowering them isn't a bad thing.

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Ra_V_en

Ra_V_en

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Jan 17, 2014
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Just look at that tinny radiator :
Link

What would you expect ;)

I'm guessing at load one of the fans from the GPU or the case is blowing harder on that radiator thats why it has lower temps.

The temp is fine, it can handle a lot more. If it was over 80C id be worried.
 
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simas290

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Sep 15, 2012
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Could you tell me what source do you have to confirm this info? I'm only asking because i cant find a normal temp for this specific board :)
 
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simas290

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Sep 15, 2012
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I have use speccy and hw monitor and both seem to agree on mobo temp

 
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simas290

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Sep 15, 2012
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Yes im considering that, but i really dont know the size of fan i should get. Also since there arent no open space on the front of the panel, could it be that the bar looking holes on the left side of the front panel (seen here http://www.super.lt/qori-atx-6236-a11-usbaudio-metalblack-atx-400w-12cmsilent-v203-p4-pfc-ce-psu/p71818 ) could be for airflow? Because im fairly certain that its possible to mount a fan on the inside wall of the front panel. Also i wanted to ask something that sounds extremely ridiculous - i have a spare hdd fan and have heard that mounting one might help the overall airflow of the case thus helping the mobo stay cool. Is there any chance that might work? And what's your opinion on how dangerous is it to keep mobo at 50c while in idle?
 
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VincentP

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Oct 18, 2013
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The temperature probably comes down during load because the CPU fan speeds up to cool the CPU.
An after market top down cooler with a fixed speed fan would reduce these temperatures at idle and load:
http://www.noctua.at/main.php?show=productview&products_id=35&lng=en

Before buying something like this, check that it will fit.
Additional case cooling is a simpler option if possible in your case.
50 degrees doesn't sound like a problem to me, but I haven't seen specifications to confirm.
 
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simas290

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Sep 15, 2012
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Whoah, that's a big cpu cooler. Anyways there is no way that will fit on my mobo, so im wondering is it possible for a front fan on my case to use those wholes on the side of the front to suck in air and deliver in to the case? Because if not, the only option i'll have is to connect a fan on the right metal lid of the case and it would be facing cpu cooler + would make pc components diagnostics and replacement so much more annoying.

 
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VincentP

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Oct 18, 2013
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The cooler will fit on your motherboard. The issue if any will be clearance inside your case between the cooler and the side of the case.
I can't see any fan mounting at the front of your case, but there are no internal images so I'm not sure. Check your user manual.
The fan mounting on the side of the case should blow air onto the motherboard and assist with cooling. Leave the cable a little longer so that you can easily pull the side of the case off without disconnecting the fan.

 
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simas290

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Shouldnt the side fan be set to suck air out of the case since there is a cpu cooler in front of it? I mean if there is a fan on the back that sucks the air out and a fan on the side that blows air in, wont that make a bad air flow?

 
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bgunner

bgunner

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Feb 13, 2009
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No especially if you are using the stock cooler. The stock fan should be forcing air towards the motherboard so the side fan would be an intake to deliver cool air to the CPU. this is the design of the case. what you will need to keep in mind is if you put a side fan in, it will not allow as much air to be drawn away form the lower part of the case.

your motherboard temp sensor should be near the front panel header. this means the lower part of the case is getting quite hot probably because your GPU is dumping most of its hot air directly into the case. what needs to happen is more air to flow from bottom front to top back in that case.

A few things that can help:
1. a higher air flow with a higher static pressure fan to replace the stock rear case fan. this will force more air to be drawn through the case but will sacrifice in decibel level.
2. Make sure your extra PSU wires are all tucked tight to the back of the case and kept in the back panel as much as possible. This will allow for smoother air flow through the case.
3. Up the GPU fan to keep it cooler at idle so that the air it is dumping in the case will be cooler. This to will require a sacrifice in decibel level.
 
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simas290

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Yes it was quite the hassle but i somehow managed to tuck all remaining wires away ( behind the metal mobo seating plate). I tried increasing gpu fan speed to 100 but it did nothing for the mobo temp, and since this problem only persists while in idle doubt gpu has anything to do with this. Decibel wise even at 100% fan speed gpu wouldn't be a problem since it has two fans and is very quiet( There is almost no difference between 29% speed power and 100% sound wise). To get a front fan i would have rely on those bar holes on the side of the front to deliver air or to cut a whole in case's front and i would rather avoid doing the latter. By the way can a side panel fan hold on only on 2 screws? Because apparently there are only two screw holes there.

 
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simas290

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Yes the screw holes are diagonal, there are sort of dent in the metal where the other holes should be though. While idle my cpu temp is between 27-31 C. Another strange thing i noticed today. When i opened the case to check the situation regarding the front fan, i noticed that a few of mobo screws seemed a bit loose. There were only 2 screws in that condition and i didn't even rotate them 180 degrees, but now when i turned on the computer, it seems my mobo temp is idling at 53, which is 1 degree more than yesterday :/
 
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simas290

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Sep 15, 2012
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Hm, by how much should a single 80mm fan reduce the mobo temp? And could you perhaps give me a rough estimate how much has this high temp already reduced boards life by ( it has been a week since i built this rig), roughly by how much does it reduce mobo life span daily, and how long should it still work properly before dying?
Thank you
 
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VincentP

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Oct 18, 2013
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No one is going to be able to guess the temperature difference with an extra fan. Extra air moving will lower the temperature.
No one is is going to be able to guess how long your components will last. Current temperatures are really not a problem but lowering them isn't a bad thing.

 
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simas290

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Sep 15, 2012
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I see, thank you all for your time and help.
 
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