Please help, what, where, or which part(s) should i check? Tq.

Further info needed before you can expect any help.
Is the drive spinning up, and keep spinning any noises?

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Digitalsupport Data Recovery
https://digitalsupport.dk

Hi there, on normal operations of the laptop, suddenly power line down.

I start the laptop again when i heard somekind of "popping sound" from beneath of the laptop (not sure if it is from the hdd or else), the laptop won't start anymore rather than showing a message of can not find any hdd on it.

I hard boot the laptop and entering the bios setup to see any luck. Still no hdd detected.

As far as i try to hear from the hdd, i don't hear any sound or movement / spinning. It seems, the hdd receive no power.