Hi
The link Patio posted will work but it is likely these drives are running a version of raid.
Which would preclude accessing drives individually you would need all the drives in the raid set attached to the PC to rebuild the raid array. As the controller is on the motherboard you can't swap the controller to the PC. You would need to find a controller the same for the PC.
If this isn't possible then you could do the recovery remotely across a network.
I you want to try this please ask and i will try and help further