Some of these screws hold very small grounding clips in place. Be careful not to lose these clips as you remove the screws.

Remove the six screws securing the motherboard in place:

One 4.2 mm Phillips screw

Three 1.9 mm Phillips screws

One 4.3 mm Phillips screw

One 3.83 mm standoff screw

Standoff screws are best removed using a standoff bit. In a pinch, a small flathead screwdriver will do the job—but use extra caution to ensure it doesn't slip and damage surrounding components.

Remove and retain the three small metal grounding clips.