Lenovo ThinkCentre 3231 Hardware Maintenance Manual page 155

4. Push the blue handle of the hard disk drive bracket inwards to release the two
clips 1 that secure the hard disk drive to the chassis. Rotate the hard disk
drive upwards and lift up to remove the hard disk drive from the computer.
Figure 57. Removing the hard disk drive
5. Disconnect the signal and power cables from the hard disk drive.
6. Remove the failing hard disk drive from the bracket by flexing the bracket.
Chapter 9. Replacing FRUs - Desktop computers
149