Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual page 114

6. Slide the new hard disk drive into the hard disk drive bay and align the screw
Figure 26. Installing the hard disk drive
7. Connect one end of the signal cable to the rear of the new hard disk drive and
Figure 27. Connecting a SATA hard disk drive
8. To complete the installation or replacement, go to "Completing the parts
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Hardware Maintenance Manual
holes in the new hard disk drive with the corresponding holes in the drive bay.
Then, install the four screws to secure the new hard disk drive in place.
the other end to an available SATA connector on the system board. See
"Locating parts on the system board" on page 86. Then, locate an available
five-wire power connector and connect it to the rear of the new hard disk
drive.
replacement" on page 114.