New system install please help!

xAdam

Honorable
Mar 16, 2013
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Finally finished my build today! and i try to install ubuntu and the USB drive wont show up and boot ubuntu! it says: boot and select proper boot device instert boot media in selected boot device and press a keyi

Im using a Z77 Extreme 4 motherboard with 8GB of corsair vengeance RAM, a 500GB samsung 7200rpm HDD and an intel i5 3570k

any ideas?