Chapter Three - Installation25Back PanelFigure 3-4. System Back Panel with Optional Removable Floppy DriveMOUNTINGSTUD (12)LID REMOVALSCREWSOPTIONALFLOPPYDRIVEFRONT PANELBACK PANELFANFILTERBACK PANELSCREWSLID SCREWSFRONT PANELATTACHMENT SCREWSLIDFigure 3-5. System Back Panel with Optional Pre-installed Non-removable Floppy Drive