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Small quiet fan for Northbridge cooling - Page 5

post #41 of 47
Could try placing fan (possibly a spare 120mm or whatever) in front blowing between HSF and GPU toward NB. I had similar problem of dead air causing heat buildup. Had good results using 40mm cardboard toilet paper tube. Cut it at about 70 degree angle to a point and tapped fan onto square end. Tilted it sideways toward top of case a little to move air up under HSF.

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post #42 of 47
Quote:
Originally Posted by Aregvan View Post

I see, well I cannot touch the heatsink for more than a second. It really devil.gif my fingers.
The fan is 4 cfm, just pushes the air around it, not really away from it.

If you can't touch it for longer than 1 second, then its loading at much higher than 55C.

About 60C is when touching heatsinks for longer than 3 seconds get difficult.
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post #43 of 47
Thread Starter 
Quote:
Originally Posted by homestyle View Post

If you can't touch it for longer than 1 second, then its loading at much higher than 55C.
About 60C is when touching heatsinks for longer than 3 seconds get difficult.

I use a infrared thermometer and it tells me 64C when it is at 50C
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post #44 of 47
You do realize that by going from 2.0GHz to 2.4 or 2.6GHz....you're not ACTUALLY overclocking your motherboard's NB, right? You're overclocking the CPU NB. Completely different, and completely different voltages that you should be adjusting......

The motherboard's NB is in charge of the HTT (also called FSB). It's also in charge of most of your expansion slots, SATA, etc, etc, etc. But it has nothing to do with anything you are overclocking, unless its HTT (FSB). If you're still at stock 200MHz HTT, then your motherboard is technically still at stock (for the NB).

So why do you need a fan on it again? You can usually get up to about 250-275 HTT or so before you even need to worry about the board's NB voltages. Just so long as it has some sort of airflow over it (case fans are enough), then its not going to matter.
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post #45 of 47
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post

You do realize that by going from 2.0GHz to 2.4 or 2.6GHz....you're not ACTUALLY overclocking your motherboard's NB, right? You're overclocking the CPU NB. Completely different, and completely different voltages that you should be adjusting......
The motherboard's NB is in charge of the HTT (also called FSB). It's also in charge of most of your expansion slots, SATA, etc, etc, etc. But it has nothing to do with anything you are overclocking, unless its HTT (FSB). If you're still at stock 200MHz HTT, then your motherboard is technically still at stock (for the NB).
So why do you need a fan on it again? You can usually get up to about 250-275 HTT or so before you even need to worry about the board's NB voltages. Just so long as it has some sort of airflow over it (case fans are enough), then its not going to matter.


Yeah well with same speed of 2.4ghz, and CPU NB at stock voltage, I kept getting BSODs once I started games, then I increased that voltage by one option, and no more bsod, so I do need the increase of voltage.

I know the NB can withstand the heat. HT link still stock 2000MHZ
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post #46 of 47
Quote:
Originally Posted by pioneerisloud View Post

You do realize that by going from 2.0GHz to 2.4 or 2.6GHz....you're not ACTUALLY overclocking your motherboard's NB, right? You're overclocking the CPU NB. Completely different, and completely different voltages that you should be adjusting......
The motherboard's NB is in charge of the HTT (also called FSB). It's also in charge of most of your expansion slots, SATA, etc, etc, etc. But it has nothing to do with anything you are overclocking, unless its HTT (FSB). If you're still at stock 200MHz HTT, then your motherboard is technically still at stock (for the NB).
So why do you need a fan on it again? You can usually get up to about 250-275 HTT or so before you even need to worry about the board's NB voltages. Just so long as it has some sort of airflow over it (case fans are enough), then its not going to matter.

he's got a fan because the heatsink is scalding hot.

my old p35-ds3l motherboard is running almost stock (very small fsb bump) and the northbridge gets hot just idling. adding fans to these things adds peace of mind.
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post #47 of 47
I would get a scythe add on sensor and attach it to the heatsink. The nb should
be cool to the touch with that fan.

I suspect the tim (usually a tacky pad) has issues like broken free from the
heatsink.

You'll probably have clearance issues on the nb top if you remove it...
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