Lenovo ThinkCentre 7515 Hardware Maintenance Manual page 114

Note: Depending on your model type, your computer might come with a
To replace the secondary hard disk drive, do the following:
Figure 24. Removing the secondary hard disk drive
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Hardware Maintenance Manual
secondary hard disk drive bay for installing or replacing a secondary hard
disk drive.
1. Remove the computer cover. See "Removing the computer cover" on page 86.
2. Locate the secondary hard disk drive.
3. Disconnect the signal cable and the power cable from the hard disk drive.
4. Press the blue release button to release the hard disk drive cage from the
chassis.
5. Remove the hard disk drive cage from the chassis by simply sliding it
outward.
6. Pull on the blue handle to release and remove the hard disk drive from the
hard disk drive cage.
7. Remove the hard disk drive from the blue plastic bracket by flexing the sides
of the bracket enough to slide it free from the hard disk drive.