how can i detach heat sink plane from lattepanda ?

i bought secondhand lattepanda 4G/64G Model.

picture attached here below is the one i bought

i want to use aluminium case and cooling fan model

but

secondhand lattepanda is already attached heatsink

i want to detach these heatsinks from lattepanda

and then i want to attach aluminium case

how can i do this?

i want to this lattepanda 4G/64G as my mini home server
that runs node.js, flask, react, ...web server...

365days 24hours....

i choose this one because cost effective for mini server that consume low electric power.

please help me Attachments latte2.jpg (1.94 MiB) Viewed 663 times