1 Turn off the power supply of the personal computer, and remove the cover or the front panel. 2 Remove the blank panel installed on the front of the 5.25 inch slot. 3 Install the fixing slide rails on the drive. (When slide rails are required, please contact your shop or the computer manufacturer.) 4 Insert the drive into the slot. 5 When fixing is required, please refer to the instruction manual for the computer. ÷ Please use screws with a length of 5 mm (3/16 in.) or less for mounting. Using longer screws may cause damage on the drive. ÷ When the mounting screws are loose etc., the vibrations from disc rotation may generate ripping noise, to prevent it the screws should be tightened securely.