Removing the chassis fan............................................ 24Prerequisites........................................................................................... 24Procedure............................................................................................... 24Replacing the chassis fan............................................ 26Procedure............................................................................................... 26Post-requisites........................................................................................26Removing the front bezel ............................................27Prerequisites........................................................................................... 27Procedure............................................................................................... 27Replacing the front bezel.............................................29Procedure............................................................................................... 29Post-requisites........................................................................................29Removing the graphics-card bracket (optional)...........30Prerequisites........................................................................................... 30Procedure............................................................................................... 30Replacing the graphics-card bracket (optional)........... 32Procedure............................................................................................... 32Post-requisites........................................................................................ 32Removing the graphics card (optional)........................ 33Prerequisites........................................................................................... 33Procedure............................................................................................... 33Replacing the graphics card (optional)........................ 35Procedure............................................................................................... 35Post-requisites........................................................................................354