Cracking sound in pc and then restarting automatically

[pelwang]

Hello,
cracking sound from my laptop and suddenly it restarts...it occurs frequently..is this a problem of hardware or software

 

[casualbuilder]

hardware. This sounds like a mobo or cpu problem. Either overheating or pulling too much power/volts from the battery. Could cause massive problems. i would bring it to a shop immediately, if not replace it.