Lenovo ThinkStation C30 Hardware Maintenance Manual page 104

4. Locate the hard disk drive. See "Locating internal drives" on page 78.
5. Disconnect the signal cable and the power cable from the hard disk drive.
6. Press the two tabs of the hard disk drive bracket toward each other, and then pull the bracket outward
to remove the hard disk drive with the bracket from the chassis.
Figure 26. Removing a hard disk drive
7. Flex the sides of the bracket to remove the hard disk drive from the bracket.
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ThinkStation Hardware Maintenance Manual