I own a HP Pavilion Dv7-1245dx with an AMD Turion x2 64-bit CPU, ATi Radeon HD 3200 graphics card. I ordered the complimentary Ubuntu CD, 64-bit, but either my system is only as it as i386 as well as its both or its just i386 as well as idk, but my machine is extremely much an AMD 64-bit and there are certain applications using full 4gb ram as well as running several 64-bit applications that i can’t do so i downloaded the amd 64 iso of Ubuntu, will that work or else is there something i can change?