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 Post subject: Northbridge cooling
PostPosted: Mon Feb 04, 2013 6:47 pm 
8086
8086
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Joined: Mon Feb 04, 2013 12:30 pm
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Location: ONtario, Canada
I have two motherboards both made by ASUS the M4A785-M and the M3N75-VM both of which have very warm northbridges. Can anyone suggest a replacement heatsink as asus uses rather odd sized ones that wont fit common replacements I tried a Zalman NBF-47J but the mounting "legs" dont reach the post holes. Any suggestions would be much appreciated.


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 Post subject: Re: Northbridge cooling
PostPosted: Mon Feb 04, 2013 7:54 pm 
Smithfield
Smithfield

Joined: Sun Jun 18, 2006 7:37 pm
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How warm is it? 40C-50C is normal operating temperature. If it's something like 60C-70C, then maybe I'd start worrying.

The only problem I believe is that chipset heatsinks are not standard. So we have to figure out what the mounting hole spacing is first.


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 Post subject: Re: Northbridge cooling
PostPosted: Mon Feb 04, 2013 8:27 pm 
8086
8086
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Joined: Mon Feb 04, 2013 12:30 pm
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Location: ONtario, Canada
Its usually between the 50 to 60 range sometimes with super heavy loads it will go a bit higher. I'm going to see if this week i can get some graph paper and trace it out so i can make a template as to the base size and the mounting holes.

This is the best picture I can find of it.
Image

I think the zalman should be more than sufficient to cool it. I'm thinking maybe a pci blanking plate a drill and a pair of tin snips to make my own "legs" for the zalman.


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 Post subject: Re: Northbridge cooling
PostPosted: Tue Feb 05, 2013 9:00 pm 
Million Club - 2 Plus
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I generally don't worry about the NB temps. You could try re-applying thermal paste, making sure the fins are clean and have a case fan blow over it. Even with it reaching 60c I still wouldn't go replacing the heatsink.


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 Post subject: Re: Northbridge cooling
PostPosted: Tue Feb 05, 2013 9:34 pm 
8086
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Joined: Mon Feb 04, 2013 12:30 pm
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Location: ONtario, Canada
perhaps ill include a small 40mm fan in my next newegg order just to attach to the existing heatsink as i dont use the x1 slot next to it :)


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