Top PlexiGlas Plate (9 screw holes) Assembly Instructions (Small Philips Screwdriver needed) Step 1: Attach fan to top Plexiglas plate using fan brackets (x2), M3x16 panhead screws (x4), M3x.5 nuts (x4), and lock washers (x2) as shown. Step 2: Attach stand-offs to top Plexiglas plate using acrylic screws. Fan Step 3: Plug FMCOMMS1 board into ML605 board. Attach Fan cable to J33 on ML605 board (near center of board, by FPGA/Fan). Fan Bracket (x2) M3x.