TMPIN0 getting way too hot (?)

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Tobias Kuess

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Apr 8, 2014
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Hello everybody,

my Motherboard is getting way too hot. HWMonitor shows the high tempreture under Motherboard->CPU and Speedfan for example TMPIN0. This part easily reaches 70° when playing a game. Since these things can stand a lot of heat I would not mind yet, I've read about people with higher temperature over a longer time. But the problem is that Windows instantly freezes when the temperature hits >71°. 70° is fine, 71° is finde, but then as soon as it goes above that, freeze. Intstantly.

But why? Does anyone of you know if this is a security setting which can be disabled or set to a higher temp?
CPU stays at ~50° when playing a pretty demanding game. It can reach 60° for short periods, but never goes above that. When it hits 60° that's a spike and definitely not common.

My Setup:
CPU: FX8350
MoBo: M5A97 2.0
GPU: GeForce GTX970
Power Supply: Corsair CX Series 600 Watts
Cooler: Arctic Freezer 13 (120mm) / i will install Mugen 4 MAX today.

 
Solution
smorizio
the old pc bench trick..use a hair dryer set to cold or small air pump that blows cold air. start the pc with the case open and then blow on one chip see if the temp0 goes down. when it does you known witch chipset it is. these chipset do get hot becuase there controlling everthing on the mb..sound..usb port...memory. 70c is hot for a lot of chips..when chips go over 50c gates in the chip can start to leak. if they leak a lot...the mb can lock up. all you can do in real life is have a fan blow across the chip or a fan on the chipset. also if the vendor used cheapo thernal paste or forgot it can cuase issue.
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smorizio

smorizio

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Jan 22, 2010
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on newer mb it the chipset set (NORTH BRIDGE/SOUTHBRIDGE). mb vendors saw these high temps and most new mb now have colored heat shield over the chipset and vrm.). the fix for you is simple find the chipset on your mb that running hot and buy small heat sinks with thermal sticky pad to help move the heat. you may be lucky on your mb there may be clips or spots already made to hold the heat sink chipset down.
https://www.asus.com/Motherboards/M5A97_R20/gallery/
the small blue heat sink with asus is the chipset that getting to hot. try taping a thermal pad with a small 40-80mm fan to it. or seeing if someone makes one.
http://www.ebay.com/itm/Aluminium-Heatsink-Fin-Cooler-w-Fan-For-PC-Northbridge-Chipset-Cooling-/221634291207

few things to check in the bios. make sure the mb running in standard speed and not performance mode. if you have ram faster then 1600 see what the dram voltage is set to also check that the cpu voltage is set to auto and not overclock.
 
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Tobias Kuess

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Apr 8, 2014
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Okay thank you for your answer. I already ordered a 40mm fan to cover up the heatsinks right next to the CPU socket.

Are you sure it is the blue heatsink with ASUS printed onto it? I thought tmpin0 would be the one which is left of the CPU socket, so between CPU and the back of the case
 
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Tobias Kuess

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Apr 8, 2014
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Ok I will try to feel if the one you mentioned is the one which is getting too hot. It always thought that this would be the MOSFET tempreture. Some say it would be the socket tempreture too.

But why does it freeze when it goes above 71°? Isn't that a bit too low to freeze? Can I disable or change this in BIOS?
 
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smorizio

smorizio

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Jan 22, 2010
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the old pc bench trick..use a hair dryer set to cold or small air pump that blows cold air. start the pc with the case open and then blow on one chip see if the temp0 goes down. when it does you known witch chipset it is. these chipset do get hot becuase there controlling everthing on the mb..sound..usb port...memory. 70c is hot for a lot of chips..when chips go over 50c gates in the chip can start to leak. if they leak a lot...the mb can lock up. all you can do in real life is have a fan blow across the chip or a fan on the chipset. also if the vendor used cheapo thernal paste or forgot it can cuase issue.
 
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Solution
T

Tobias Kuess

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Apr 8, 2014
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Ok I will test this one out. Thank you for your answers, I will give feedback as soon as I could test it.
 
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Tobias Kuess

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Apr 8, 2014
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So the final solution was new CPU cooler - let me explain:

The component at TMPIN0 on this Board (M5A97 R2.0) is the one marked here in the screenshot:

http://img5.fotos-hochladen.net/uploads/iirk8lengsnqrezal5de17pm8.jpg

Since there is just a passive cooler installed, a good airflow is vital here. Also the GPU is installed right underneath the Northbridge, which will heat up this spot too. What worked for me was the following solution: Turning the CPU Fan around so it blows from East to West. This improved the whole air flow and no heat is building up anymore, at least not as bad as it used to be. Here is a picture of how i solved it:

http://img5.fotos-hochladen.net/uploads/zwischenablage07yx6t1m5gr.jpg

TL;DR:
If your Northbridge gets too hot because of a Bulldozer CPU you have to buy a small fan for it or get a decent airflow.

 
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