Give up performance to decrease temperature

bozer
bozer used Ask the Experts™
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Hello experts,

This is an odd question probably but I would like to decrease the performance of my PC from BIOS because the North Bridge is getting too hot. The system (North Bridge) was always hot but it never went past the maximum set which is 90 degrees in BIOS. Passing this value triggers a reset.

The fans seem to be working, including the RAM cooler. So it is hard to understand why this has started to happen.

I would like to continue to use this PC for a few months before I go for a more permanent fix. (Like replacing the peripherals or adding more powerful cooling features)

I know things will get better if I remove a RAM pair (I have 8 Gig in total) but I am hoping to avoid that for now.

I also don't want to turn off the temperature threshold that triggers the reset because I do not want to kill the system completely.

Is there anything else to stabilize my system in BIOS by playing with voltage, fan speeds etc?

I am using the default BIOS setup now and I do not want to try a BIOS update since it is not relevant. (The system was stable for over a year)

Thanks
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MikeIT Professional

Commented:
Reseat the CPU fan.  Make sure you have plenty of heatsync solution.  Also, add a couple of more fans if you are able to.
You could lower down the voltage on the cpu in stages and see if the heat level will lower down and keep the system stable.
I also use this heatsink on my computers http://www.newegg.com/Product/Product.aspx?Item=N82E16835118214

CT
Top Expert 2012

Commented:
All you need to do is increase the airflow in your case and you will probably see an improvement.  Buy and position a case fan to blow on the NorthBridge, or keep your case open.  Case fans only cost about $5 or less.
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Author

Commented:
Thank you for the replies.

From my prior experiences when I was building this PC is that the only thing helped to decrease NB heat was to add a RAM cooler over the RAMs.

Using an open case does not work. I am thinking about maybe replacing the CPU fan and replace the case fans with a more performance ones. If I only knew what happened all of a sudden, that should help extremely. My guess is one of the fans RPM decreased and that's where the problem is. I do not know which fan is what in BIOS display. One of the fans show 1000 RPM while others show around 3000 RPM but I am not sure if that is a new value (decreased from previously) or that always was like that. (Maybe that's the value for RAM coolers)

CT, can you give me a brief explanation on heatsink? Do I attach it on the MB? I am guessing it's just a conductor of heat, am I correct?

Thanks
The heatsink goes on the north bridge chipset and the fan on the heatsink. and it just like a cpu fan it runs about 600 to 1000 rpms.

CT

Author

Commented:
Where do I mount it on exactly? Zalman says it fits most of the MBs but I need to be sure. (My motherboard is Asus Maximus II Formula)
there is no need your mainboard uses a laptop type cooler to keep the chips cool.

CT
Commented:
NB temps seem to be an issue with this mobo. Remove, clean, and repaste the heatsink.

http://www.hardforum.com/showthread.php?t=1268767

(scroll down to NORTHBRIDGE COOLING ISSUE) (also has some bios settings info)
http://forums.pureoverclock.com/showthread.php?t=4932

And several other sites also mention using washers to help hold the heatsink down a little tighter.
_

Commented:
And just to cover my backside --- Do Not use metal (conductive) washers !!

More sites to poke through if you want:
http://www.google.com/#hl=en&q=Asus+Maximus+II+Formula+remove+NB+cooler&aq=f&aqi=&oq=Asus+Maximus+II+Formula+remove+NB+cooler&fp=435311d5ec9ae78f

Author

Commented:
Thanks,

I just cleaned and remount the CPU Fan but as I was saying it never was the issue in the first place: CPU runs around 40 degrees where NB temperature already hit 70+ degrees.

I'll read the links and put more information
_

Commented:
Thank you much.   : )

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