Unable to tighten bottom left & right screws on motherboard

Twistofate4u

Distinguished
Jul 1, 2015
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0
18,530
Hi all,
I need suggestions please.
I'm in the middle of building a pc for the first time.
However I'm unable to tighten the bottom left & right screws as they just rotate freely and comes off when I move the case.
Is it okay if I leave the bottom left & right corners without screws?
There's also some kind of warning sign right next to the left screw hole.
8


Asus Z97-Pro Gamer
Corsair Carbide Spec 03