Would a big CPU heatsink distort the motherboard? - Overclock.net - An Overclocking Community
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Would a big CPU heatsink distort the motherboard?

 
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post #1 of 8 (permalink) Old 04-19-2015, 02:25 PM - Thread Starter
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I am considering buying a big CPU heatsink for a budget build I am making and I found some of them that weigh almost 1kg. So I started wondering whether something that heavy hanging from my motherboard would cause any distortions. You know, like how heavy graphics cards may cause "motherboard sag" and all that. If anyone out there has experience with big, tower heatsinks, have you ever noticed any bending of the motherboard or anything like that?

Thank you for your input!
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post #2 of 8 (permalink) Old 04-19-2015, 02:34 PM
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No, big heavy coolers do not hurt motherboards. The only times we damage is when something extreme happens, like being dropped, knocked off of desk, etc.

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post #3 of 8 (permalink) Old 04-19-2015, 02:36 PM
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A big heavy cooler can and almost will always bend the board, however as to if it will damage the board, not likely unless it has a really crappy mount.
As long as it has a nice backplate, it should be fine.
A PCB can bend a lot without being damaged.

EDIT: If you are concerned about the weight on the board, my recommendation would be to go with an all in one liquid cooler, as that will put very little weight on the motherboard.

Something like a coolermaster or corsair cooler will work nicely and provide very good performance.
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post #4 of 8 (permalink) Old 04-19-2015, 03:35 PM
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When a motherboard is mounted properly and cooler is too, I do not believe the motherboard is distorted. The traces cannot take much movement without being broken.

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post #5 of 8 (permalink) Old 04-19-2015, 03:45 PM
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Quote:
Originally Posted by doyll View Post

When a motherboard is mounted properly and cooler is too, I do not believe the motherboard is distorted. The traces cannot take much movement without being broken.

I can show you a picture of my old DFI motherboard that was bent from the pressure of my old waterblock mount.
It runs just fine.

A PCB can bend a lot without hurting anything.
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post #6 of 8 (permalink) Old 04-19-2015, 05:13 PM
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Quote:
Originally Posted by thrasherht View Post

I can show you a picture of my old DFI motherboard that was bent from the pressure of my old waterblock mount.
It runs just fine.

A PCB can bend a lot without hurting anything.

mounting pressure of the cooler has NOTHING to do with the weight of the cooler smile.gif the weight of the cooler is less then 2 pounds... the mounting pressure of the cooler can be upwards of 50 pounds biggrin.gif

will a mobo deform under 50 pounds of pressure? yes. would a mobo deform under 2 pounds of weight? not a chance in hell biggrin.gif
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post #7 of 8 (permalink) Old 04-19-2015, 05:29 PM
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Quote:
Originally Posted by psyclum View Post

mounting pressure of the cooler has NOTHING to do with the weight of the cooler smile.gif the weight of the cooler is less then 2 pounds... the mounting pressure of the cooler can be upwards of 50 pounds biggrin.gif

will a mobo deform under 50 pounds of pressure? yes. would a mobo deform under 2 pounds of weight? not a chance in hell biggrin.gif

I wasn't saying that the cooler itself is going to cause a bend, I was mearly pointing out that under extreme forces, boards can bend without issue.
However a heavy cooler can still cause the board to bend a small amount, but it doesn't matter because it won't hurt anything.
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post #8 of 8 (permalink) Old 04-20-2015, 05:09 AM
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Good mounts don't "bend" the motherboard. wink.gif
And if motherboard is mounted into case properly there is little to no bending / flexing it involved.

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