I recently built a friend a pc in the cooler master masterbox lite 5. The front of the case is solid with only has 2 small air vents at the top and bottom. The case came with only one rear fan. Would it hurt/help temps by adding 2 fans in the front considering there is minimal ventilation on the front? He wants led fans so it lights up the build a little more but I won't install them if it could somehow raise temps