I have reviewed this link: http://www.experts-exchange.com/Hardware/Misc/Q_21737752.html
and the issue appears to be the exact same as ours. The 2nd hard drive is flashing between green and amber. I re-seated the hard drive and it actually worked, amber light on the main display turned blue again, however, after a brief period of time it turned amber again. What can I do here? Is the hard drive bad?