Lenovo C225 All-In-One - Manual (Page 19)

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Hardware Replacement Guide
11. Install the new optical drive as follows:
(1) Align the new optical drive with the cover, and then push the cover back into
position.
(2) Screw the metal bracket onto the new optical drive.
(3) Slide the new optical drive into the drive bay.
12. Screw the new optical drive onto the chassis.
Replacing the hard disk drive
Attention:
Turn off the computer and wait 3 to 5 minutes to let it cool down before
replacing the hard disk drive.
To replace the hard disk drive:
Note: It may be helpful to place the computer face-down on a soft flat surface
for this procedure. Lenovo recommends that you use a blanket, towel, or
other soft cloth to protect the screen from scratches or other damage.
1. Remove the hard disk drive cover as shown.
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