so i just made this computer, i know the wiring is horrible but i just wanted to see if it works, but i keep getting "reboot or select proper device". I am not sure if im missing a cable on the third to the right of the storage ( nothings plugged in) - please help
You don't have to plug anything in the empty port it for jumper setting for master/slave configuration. If you are using this drive from an old PC, than just insert a bootable media (DVD/USB) in ODD and repair install the OS. Make the ODD as first boot device in BIOS. That's it.
Or check the connections between MB and HDD(Interface/Power).
Or, if it is a new drive with no OS in it then install OS.
Restart the PC with the media inside the ODD. You can see "Press any key to boot from CD/DVD" just press any key and from there on follow the on-screen procedure and clean install or repair install OS.
I think you placed the HDD in wrong direction, it will be just opposite to what you did.