HP dv2312us hard drive not working

[sn8key]

Hello,
My HP hard drive suddenly stopped working. All other components seem to be working(lights still on, except for hard drive led) Fan still on, power on, battery charge led is on. But nothing comes up....no BIOS, nothing.

Replaced the hard drive with a new one, and still nothing. No BIOS screen nothing.

Any ideas?

 

[sn8key]

wonder if it's the motherboard...