Macbook air suddenly makes a weird alarm noise

[Rukido]

I have been using my macbook air for three years now and I have never had a problem with it. As I was using my laptop today it started making this alarm beeping sound every 30 seconds or so. Everything is still working normally on my macbook. I tried restarting it but it still kept on going. Does anybody know what this is or experienced the same problem?

 

[eRondeau]

Usually a beeping Mac means a memory failure... https://support.apple.com/en-ca/HT202768

 

[alarmbae]

I have been using my macbook air for three years now and I have never had a problem with it. As I was using my laptop today it started making this alarm beeping sound every 30 seconds or so. Everything is still working normally on my macbook. I tried restarting it but it still kept on going. Does anybody know what this is or experienced the same problem?

Are you sure its not a fire alarm tho?
[doublepost=1507729037][/doublepost]mate, i think might be a fire alarm with low batteries. not your laptop. its ok tho. at least it isnt broken.