Lenovo 3257A9U User Manual page 23

To replace the hard disk drive, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Open the computer cover. See "Opening the computer cover" on page 12.
3. Disconnect the power cable from the optical drive first.
4. Press inward on the side tabs of the hard disk drive bracket. Place your finger on the tab located on
the front of the hard disk drive bracket and then pivot the hard disk drive upward to remove it from
the hard disk drive bay.
Figure 9. Removing the hard disk drive
5. Disconnect the signal cable and the power cable from the rear of the hard disk drive.
6. Flex the sides of the hard disk drive bracket properly to remove the hard disk drive out of the bracket.
7. To install the new hard disk drive into the bracket, flex the bracket and align pin
4 on the bracket with the corresponding holes in the hard disk drive. Do not touch the circuit board
on the bottom of the hard disk drive.
Figure 10. Installing the hard disk drive into the bracket
8. Connect the signal cable and the power cable to the rear of the new hard disk drive.
9. Slide the new hard disk drive into the hard disk drive bay and pivot it down until it snaps into position.
1 , pin 2
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Chapter 2 Installing or replacing hardware
, pin 3 , and pin
5
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