Chasis Intruder Error?

Gbz Goldenboyz

Honorable
Apr 15, 2014
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0
10,860
When i start mycomputer it gives me this error
Chassis-Intruded-300x291.jpg

But after closing my chasis it still gives me this error my motherboard is mha78l-mlx v2
does this error is dangerous? how can i solve it