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How to Remove SB heatsink/fan

Tags:
  • Motherboards
  • Heatsinks
  • Fan
  • Computer
Last response: in Motherboards
March 4, 2010 1:55:05 PM

The heaksink/fan appears to be connected with a spring loaded mechanism that has two spring post on either side of the heatsink. I can lift it up a millimeter or so but that's it. How do I remove the heatsink? I'm wondering if my SB is the reason my computer will not turn back on. I turned off the computer to blow out the inside of it. While I had the case open I was jacking around with the sb heatsink because the fan started making noise. After hooking the computer back up it will not turn on. I've ruled out a bad power switch and the green light on the mb is on. Ohh, it's an ASUS A8N SLI mb. Thanks!

More about : remove heatsink fan

Best solution

March 4, 2010 4:28:50 PM

Take the motherboard out, turn it upside down, and if you look you will see that when the pin is pushed through the motherboard it expands, so you need to grip the bottom of the pin with a pair of plyers so it is narrow enough to fit through the hole and voila
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March 4, 2010 5:02:39 PM

I kind of thought that was the case. :(  I really don't want to pull the board out. It there any chance the chip could have been damage when I pulled the hs away from it?
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March 8, 2010 2:52:52 PM

Best answer selected by doczenith1.
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March 9, 2010 7:41:24 AM

Not really, The only way you could have damaged something is if you have REALLY yanked on it , I mean propper pulled it and bent/bowed the motherboard but they can be quite resilient. It will be fine :) .

Are you getting no action whats so ever when you power on?, are you getting a post?
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January 31, 2016 4:57:01 AM

What is the SB please?
Yes, I did Google it, but could find no definition.
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January 31, 2016 9:10:35 AM

Jim Thompson45 said:
What is the SB please?
Yes, I did Google it, but could find no definition.



South bridge.(google "SB on a motherboard")
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January 31, 2016 1:01:17 PM

Very good; thanks for the answer.
Does the SB heatsink have thermal grease between it and the chip?
If so, I will remove mine and check it as the CPU (Northbridge?) heatsink grease had completely dried out causing the computer to re-boot itself without warning.
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January 31, 2016 8:35:15 PM

Jim Thompson45 said:
Very good; thanks for the answer.
Does the SB heatsink have thermal grease between it and the chip?
If so, I will remove mine and check it as the CPU (Northbridge?) heatsink grease had completely dried out causing the computer to re-boot itself without warning.


I think the heatsinks on most southbridge chips are passive but still require grease, though it might vary with the motherboard. My ASUS board had horrible sort of "foamlike" sticky pads in place of the grease for both the heatsinks, Northbridge AND Southbridge, so gucked on there that I had to carefully remove them and replace them with grease, and they run much cooler-about 20 degrees cooler. Be sure to get full instructions and maybe lay in replacement spring clips for the heatsinks, they often get destroyed inadvertently as they are difficult to remove non-destructively-and do not skip completely removing the motherboard if you didn't already, it's nearly impossible to be sure they are seated properly after reinstalling just from looking at the front. This is probably obvious, but I just wanted to be thorough.

I'm monitoring this thread, so let me know if anything is unclear. I should also let you know that netiquette would dictate that if an original post is as old as this one, that when you start asking questions you do not "necropost", but start a new thread-though I suspect you'd have gotten a response from someone else, not me-but perhaps from someone more knowledgable LOL

Hope this helps!

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January 31, 2016 8:53:30 PM

the24frans said:
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....................................................... Be sure to get full instructions and maybe lay in replacement spring clips for the heatsinks, they often get destroyed inadvertently as they are difficult to remove non-destructively-and do not skip completely removing the motherboard if you didn't already, it's nearly impossible to be sure they are seated properly after reinstalling just from looking at the front. ..................................................

I will search out full instructions. Also, I'll remove the motherboard before tackling the task.
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I'm monitoring this thread, so let me know if anything is unclear.

Thanks for that.
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I should also let you know that netiquette would dictate that if an original post is as old as this one, that when you start asking questions you do not "necropost", but start a new thread-though I suspect you'd have gotten a response from someone else, not me-but perhaps from someone more knowledgable LOL


I should have guessed. Point taken.
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Hope this helps!
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Sure does.

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February 1, 2016 4:38:19 AM

the24frans said:
17421615,0,2131128 said:
........................................ My ASUS board had horrible sort of "foamlike" sticky pads in place of the grease for both the heatsinks, Northbridge AND Southbridge, so gucked on there that I had to carefully remove them and replace them with grease, ...................................................
said:


Mine was the same; the stuff was hard to remove. I ended up using eucalyptus oil to dissolve it and it was very successful. I cleaned that off with alcohol after. I also did both of mine while I was at it. I have no difficulty removing the heatsinks after removing the motherboard. Just squeezed the barbs on the plastic plugs together and they each popped out.

All nicely serviced and operating well!
Thanks again.

Jim.

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