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super hot Northbridge problem

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smileysimm

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Jun 13, 2008
I have a XFX MB-N780-ISH9 mobo, and the northbridge is always very hot (burns your hand - both on the small square [blue arrow], and on the angled heat-dissipation thing with the modded fan). The heat is blown down directly onto the GPU, and makes it very hot as well, thus creating problems for overclocking the fsb and GPU (although the GPU is already overclocked to 780MHz from 680MHz). As you can see in the picture, the cooling method is poorly designed, making the heat to travel from the small square on a thin metal piece over to the block thing (not really a 'block', but more like a 'shiny thing for looks'). :screwy:
Anyways, there is a major issue here I think, and I was wondering if there was some sort of alternative to cooling both the little square (with the blue arrow), and the larger block (the 'shiny' piece is all connected to the 'block'). Also, my top video card is blocking the small square slightly from adding anything on top properly. I was thinking of somehow gluing this on top with Arctic Silver's thermal glue - slightly off to the side - but didn't know if that would be very effective. Also, what is underneath each (the small square and the big square)?
:bang head
Thanks guys.
 

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its not a problem, its they way NV chipsets run.. they run much hotter then others nothing you can do about it. unless you spend mony on getting a aftermarket Chipset sink.
 
unless you spend mony on getting a aftermarket Chipset sink.
That's what I mean - what should I get for an aftermarket cooler? what is there? What is under the 'block' and little 'square'? Northbridge? Southbridge?
This heat is impeding my ocing efforts! :(
 
there is no new cooler for 780i, wont be for a while. i cant even suggest the above listed NB cooler either. simply because NV put the media bridge to allow PCIE 2.0 on 780I right next to the NB.
http://www.hardwaresecrets.com/article/508/1
Hardware Secrets said:
nForce 780i is in fact a propelled version of 680i: they both use the same north bridge chip. The only difference between the two is that 780i uses a small nForce 200 bridge chip to allow PCI Express 2.0. The communication between nForce 780i and nForce 200 is done thru an overclocked PCI Express 1.0 path. Then nForce 200 makes the connection with the three x16 PCI Express slots available. Two of them are 2.0 and one of them is 1.0. All three slots work at x16 rate when SLI mode is enabled, which is great.
so if you did want to use the above suggest cooler for the NB you would need to be running a 790i.
Hardware Secrets said:
Native support for PCI Express 2.0 will only be available on the next high-end nVidia chipset for the Intel platform, namely nForce 790i, which will compete with Intel X38, as it will also bring DDR3 support.
 
Ah, good point Evilsizer, I totally forgot about the NB situation. What I think some people over at evga forums are doing is putting a ramsink on there next to the HR-05. Depending on the size, I think any one of the ramsink sets or the single heatsinks near the bottom with some thermal tape would work:

http://www.sidewindercomputers.com/memandvidcar.html
 
I'm not sure I'm understanding all this...

As far as the HR-05.... why won't that work? Because of the way's it's oriented? Or because of the way the chips are made? What does Evilsizer mean when he says, "NV put the media bridge to allow PCIE 2.0 on 780I right next to the NB"? What's the media bridge - is it the pipe? I don't see how the pipe would come into play when you put aftermarket coolers on without pipes connecting them together...

Sorry for all the questions... Thanks for all the extremely helping replies!
 
I'm not sure I'm understanding all this...

As far as the HR-05.... why won't that work? Because of the way's it's oriented? Or because of the way the chips are made? What does Evilsizer mean when he says, "NV put the media bridge to allow PCIE 2.0 on 780I right next to the NB"? What's the media bridge - is it the pipe? I don't see how the pipe would come into play when you put aftermarket coolers on without pipes connecting them together...

Sorry for all the questions... Thanks for all the extremely helping replies!

Basically, there's a small chip right next to the NB that needs to be cooled too. So you actually need 4 heatsinks.

I would get
MOSFET: http://www.sidewindercomputers.com/thhrty4for68.html
NB: http://www.sidewindercomputers.com/thhrchco1.html
Small chip next to the NB: http://www.sidewindercomputers.com/miso.html
SB: http://www.sidewindercomputers.com/thhrsl.html
 
Here, 1 is MOSFET, 2 is NB, 3 is chip next to NB and 4 is SB:

15011225pk8.jpg
 
Also, qq - do I really need fans for the NB & SB, or will they be fine without?
 
I would put a fan on the NB, the nvidia chipsets can get pretty hot. Any 80mm fan works with the HR05 IFX.
 
you know tried to find a pic with that board nakie like that. thanks for posting that up for him ashura.
 
fan

It looks dorky, but I have the same problem with the 790i which also has an obnoxous fan blowing down on the GPU. I took a plastic tie and mounted a cpu fan blowing away from the GPU. This seems to have worked well.
 
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