Help can't remove the push pins from the motherboard

[PolanaMaster]

Hello everyone,

Recently I purchased an Arctic Freezer 11LP cooler for my CPU and today I wanted to install it but it's too big and my RAM gets in the way .

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But now I just can't take out those annoying push pins from back of my motherboard. I've tried with pliers but they are so slippy and I'm scared I will damage my motherboard. Pulling them out with pliers from the CPU side also doesn't work as they sit so tight. Do you have any ideas what I can do? Help is much appreciated I can't even put back my intel stock cooler and I'm my PC just sits there opened. Push Pins are shown from the both sides on the pictures below.

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[jasonkaler]

Not sure if it will work in your case, but I use the tube from a ball point pen.
Pull the ink out and push the remaining pen on the plastic support - it will push the two clip edges in