Hard disk undetectable

[Allanthung]

here we go - toshiba laptop hard disk not detectable....a 3 click beeping sound is emitted on start up which doesn't seem to stop... hard disk has been removed and checked and re inserted again but problem persists... m attaching a pic to show you the problem

 

[d6bmg]

Send the HDD for RMA. Most likely mechanical failure.
Or,
on a second thought, their might be a problem with the motherboard of your laptop.

 

[CA50]

remove the HDD and try it in a desktop or in another laptop. If it still doesn't work, then RMA is your best option