advice on Heatsink issue

[Mr Graphic]

Started getting "serious" error messages due to overheating. Opened up the case and here's what I found.

Seems one of the two clips that held it in place let go. Is there an easy way to re-mount this without re-mounting the clip. Maybe an adhesive? Thanks in advance.

 

[customholle]

Arctic ceramique will do fine i believe, correct me if im wrong.