LGA 1155 Heatsink Mounting Holes

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ajitesh

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Jan 30, 2014
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Do LGA 1155 Heatsink Mounting Holes have screw threads? I'm considering to buy the Intel DZ75ML-45K and my current stock motherboard from an HP machine has the Heatsink screwed on while Intel Heatsinks use push-pins.
Please suggest
Thanks
 
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InvalidError

As you said, and me and others have also said, standard motherboards are designed for push-pin only.

If you want to reuse your HP's heatsink, you need to check if its mounting hardware has a hole layout compatible with standard motherboards and that everything actually fits on standard motherboards. If it does not, you are out of luck and will need to buy an aftermarket HSF.
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Andrew Buck

Andrew Buck

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Jan 28, 2014
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Unscrew the heatsink.
 
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cklaubur

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There is likely a backplate installed on the other side of the motherboard holding the heatsink in place. The mounting holes themselves have no threads.

If you replace the motherboard, you will need to transfer that backplate over to the new one. It might just be held on by the same screws holding the heatsink in place, so be ready for it to drop off when the heatsink is removed.

Casey
 
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InvalidError

InvalidError

Titan
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May 18, 2007
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There are no threads in standard LGA775/1150/1155/1156 holes; the push-pins grab directly on the PCB.

If your HP HSF uses screws, your HP motherboard either has threaded inserts in its holes, a back-plate (as many aftermarket HSF do - I would not put a HSF without backplate in my own PCs) or some non-standard arrangement. If the HP HSF has standard hole pattern with removable inserts or backplate, I would be tempted to reuse it on your new motherboard since I personally feel much more comfortable with screwed-in HSF than push-pins.
 
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ajitesh

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I am asking if it will screw in the new motherboard. Do the mountings have screw threads so that I can screw the old heatsink on the new motherboard. I've seen that motherboards only support push-pins and not screws.
 
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InvalidError

InvalidError

Titan
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As you said, and me and others have also said, standard motherboards are designed for push-pin only.

If you want to reuse your HP's heatsink, you need to check if its mounting hardware has a hole layout compatible with standard motherboards and that everything actually fits on standard motherboards. If it does not, you are out of luck and will need to buy an aftermarket HSF.
 
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ajitesh

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Jan 30, 2014
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The hole layout is exactly the same with the same spacings. I see a yellow thing at the back of the motherboard which is aligned to the holes. I guess the screws screw into it.
 
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