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Info on P35-DS3L northbridge fan and TIM

post #1 of 26
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Alright. So I recently got the GA-P35-DS3L board. My northbridge heatsink was getting very hot to the touch, so I decided to take a look at the factory TIM that was on it. Now I know exactly why many people are having problems with the northbridge overheating.
Attachment 72716 Attachment 72717

So I started my normal routine of removing all of the crappy factory stuff and replacing it with some OCZ Freeze. I was quite amazed at how easily the factory stuff was able to be removed from the die and heatsink. I was able to scratch most of the stuff off the heatsink with only my fingernail. Cotton swab and isopropyl alcohol got the rest of the TIM off.
Attachment 72718

I spread around the OCZ Freeze with the tip of the syringe to make sure the whole die was covered. (There's not as much as it looks like in the photo)
Attachment 72720

After putting the heatsink back on I noticed that it was even hotter than previously. Almost burning. This meant that the new TIM was doing a much better job of conducting the heat and directing it away from the die and into the heatsink.

I decided to go a step further and strap a fan on the heatsink. I found a small fan from the heatsink of an old Pentium 3 and got my zipties out. Unfortunately, with the way the northbridge heatsink is designed, it's almost impossible to mount a fan on top of it without using double-sided tape, which is not what I wanted to do. Plus, my gigantic Scythe Mugen CPU cooler would restrict airflow on the top half of the northbridge.

I finally decided to mount the fan horizontally on the heatsink, as it was much easier to mount the fan using zipties. So my final result ended up looking like this:
Attachment 72721

Connected the fan to my fan controller and it's amazing how much cooler my northbridge is, even with the fan speed somewhat low. The heatsink is now only warm to the touch.




 
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post #2 of 26
i am interested to what your temps are


and i never can get nb heatsinks off can you give instructions to that, (also putting it back on)
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post #3 of 26
Thread Starter 
Quote:
Originally Posted by 1 g0t 0wn3d View Post
i am interested to what your temps are


and i never can get nb heatsinks off can you give instructions to that, (also putting it back on)
Not sure what my northbridge temps are. The DS3L doesn't seem to have a temp sensor for it. The sensor I'd think it would be always displays the same temperature, even when I purposefully heat up the northbridge.

It's pretty easy to remove the heatsink. You need to pinch the plastic pins from the underside of the board and push them through.
 
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post #4 of 26
Nice job man. Rep+ up. Although can you tell me the diameter of that fan and also how you mounted it? It's kinda hard to see.

Did you mount it

under mobo>mobo>zipties>HS on top? is that how it went so the HS white clamp thing was holding it between the mobo and the white thingy?

Would this one be good

http://www.petrastechshop.com/40scmcafan4c.html
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post #5 of 26
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Quote:
Originally Posted by Metalica732 View Post
Nice job man. Rep+ up. Although can you tell me the diameter of that fan and also how you mounted it? It's kinda hard to see.

Did you mount it

under mobo>mobo>zipties>HS on top? is that how it went so the HS white clamp thing was holding it between the mobo and the white thingy?

Would this one be good

http://www.petrastechshop.com/40scmcafan4c.html
Can't remember off the top of my head what size it is. I'll look at it when I get the chance. I think it was bigger than 40mm though. The white pins aren't holding the zipties there. All I did was slide the zipties over the heatsink fins in the two corners.
 
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post #6 of 26
Thread Starter 
The fan I used is 50x50x10mm.
 
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post #7 of 26
Im sort of confused on how you mounted that fan... you used zipties? Im soooo confused... how is it in place?! lol... if you can get a better pic that would be thanks
post #8 of 26
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Quote:
Originally Posted by Odyn View Post
Im sort of confused on how you mounted that fan... you used zipties? Im soooo confused... how is it in place?! lol... if you can get a better pic that would be thanks
I'll take another picture during lunch break. I basically put zipties through the holes in the fan and then looped them around the heatsink fins in the bottom left and right corners.
 
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post #9 of 26
Quote:
Originally Posted by onlycodered View Post
I'll take another picture during lunch break. I basically put zipties through the holes in the fan and then looped them around the heatsink fins in the bottom left and right corners.
Ohh ok, soryr i just didnt understand before you said that. The otherway i was just uhhhhhhhhhhhhh lolz

Cool tho, I should probably do this to mine
Do you get better OCability?
post #10 of 26
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Quote:
Originally Posted by Odyn View Post
Ohh ok, soryr i just didnt understand before you said that. The otherway i was just uhhhhhhhhhhhhh lolz

Cool tho, I should probably do this to mine
Do you get better OCability?
Not sure. My FSB is only at 333MHz right now. My E2180 won't go above 3GHz without a large increase in voltage, so I haven't really tried anything yet.
 
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