Reboot and select proper boot device, or insert boot media in selected boot device and press a key

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Dec 3, 2014
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I just built a new PC and I have
Nvidia 9400GT
MSI A78M-E35
AMD Athlon x4 760k
4gb Crucial Ballistix sport
And a 1tb seagate hard drive
So when I put it all together this is what I get "Reboot and select proper boot device, or insert boot media in selected boot device and press a key" I'm trying to boot from my windows 7 installation disk which I have done before. I have tried setting my bios settings to cd drive first, hard drive first, still nothing. I am new to building PC this is my first one actually so all help is appreciated.
 
Solution
try hitting f12 at post for a temporary boot device. See if you cd or optical drive show up. Surely you are not booting from a cd. must dvd something right?