Solved! No bootable devices on laptop

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Guest

Guest
no bootable devices strike f1 to retry boot, or f2 for setup utility. can anyone help me? i just bput a new hd and when i install it that is themessage i get. i tried to boot from the cd so i can in os but i always get the samae message. i ran dianostics all functions are in working order, it does say media test failure, check cable, but how do i get the message to clear and install my os? i even tried entering the old hard drive back, and still get the no bootable device message? can anyone help?