HDD spins but won't recognize neither won't boot...what to do?

[alijayadv]

I was using an old Samsung hdd and after a reboot it showed that the hdd is recognized but it won't go further,after i removed the drive i started the computer again and it booted URGENT y.I bought another hdd few weeks ago and after a while it made the same problem.I thought that this could be caused by the hdd but after buying the second one and failing such as the first after only two weeks of using i think the problem is in the motherboard.And both hdd are spinning and working on some computers that i tried lets say 2 outta 3.

 

[fer_yana]

Have you try to change memory, some bad memory can make your computer can't boot.