Hi everyone

I have a problem with an optiplex 3050

has been working well, i bought an ssd to upgrade my computer, 

when I connected the hard drive, the classic no boot device error appeared, on that occasion I did not have time and chose to return the original hard drive but ther error persist.... 

I acces to the bios to check and change the boot options but all the options appear in gray and I can not modify anything,
try to enable them by putting password to the admin and the system
user but they are still gray, check the  bios version and update it but still the same ... any ideas?