The front fan in my case is at the bottom in the inside part, as the case have a plastic cover after the metal and a USBx2 bracket to use in the front panel the air that that fan may take SEEMS to be restricted and i think it is taking the asme air that it inside the case, in the back part i have an exahust fan appart from the one in the PSU, i would like to know what can i make to let than fan suck clean fresh air... avoiding making some holes to the panel beacuse i don't have the tools needed and it's pretty expensive to get them or pay to someone to make the holes for you, thank you very much