I was looking for information about the optional fan (FAN-0113L4) 8cm Front Intake Fan for CSE-731i-300B. Do you know where to install it. The manual did not mention about it.
Remove the front bezel cover. Refer to page 31 (4-13) in the manual on how to remove it. The fan, FAN-0113L4 installed at the bottom, between chassis and front bezel cover.