Lenovo ThinkStation 4215 Hardware Maintenance Manual page 98

To replace the primary 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. Remove the computer cover. See "Removing the computer cover" on page 73.
3. Locate the primary hard disk drive. See "Locating internal drives" on page 72.
4. Disconnect the signal cable and the power cable from the hard disk drive.
5. Press the blue release tab
then pivot it outward.
Figure 26. Removing the primary hard disk drive
6. Remove the hard disk drive cage from the chassis by sliding it outward.
7. Pull on the blue handle
8. Flex the sides of the blue bracket to remove the hard disk drive from the bracket.
9. To install a new hard disk drive into the blue bracket, flex the bracket and align pin
and pin 4 on the bracket with the corresponding holes in the hard disk drive. Do not touch the circuit
board 5 on the bottom of the hard disk drive.
Note: If you are installing a 2.5-inch hard disk drive, install the hard disk drive into a 2.5-inch to 3.5-inch
hard disk drive tray first and then install the tray into the blue bracket.
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Hardware Maintenance Manual
1 down, slide the hard disk drive cage
3 to release and remove the hard disk drive from the drive cage.
2 to the rear of the computer, and
1 , pin 2 , pin 3 ,