Can't get OS installation open

Hey guys,

Today I put my computer parts together. I know they are all functional and put in the right places, or else it wouldn't run! However when I turned on the computer, I was faced with this message.

"reboot and select proper boot device or insert boot media in selected boot device"

Someone suggested to me that I should set up my BIOS in a certain way. I made it so that the computer reads CD/DVD first, but it doesn't work. I notice mention of floppy drives, so I disabled it, with no effect. I've been fiddling around with it, but I can't get out of that message. Anyone have any suggestions?

Biostar ta790gxb3 motherboard and AMD Athlon II x3 435 are my mobo/processor.

Other parts if it matters: Seagate 7200.12 500gb hdd, powercolor radeon hd 4850 1 gb, a-data 4 (2x2gb) ddr3 ram, lite-on basic dvd burner (forgot model).

Please help1!!!!
3 answers Last reply
More about installation open
  1. Does the dvd drive show up in the list of drives?
  2. yes, i even arranged it to be first priority, however nothing happened.
  3. Are you certain that the disk you have in the DVD drive is the OS installation disk?
    Where did it come from?
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