Use a T6 Torx driver to remove the three screws along the top and left edges:

Two 4.6 mm-long screws

One 5.6 mm-long screw

Use your 5IP Torx Plus driver to remove the eight screws along the right edge, bottom edge, and fan:

Two 3.8 mm-long screws with silver screw heads

Two 3.7 mm-long screws with small, black screw heads

Two 5.1 mm-long screws

Two 3.6 mm-long screws along the left edge of the fan