Lenovo THINKCENTRE 8177 - Manual (Page 109)

Note: This illustration shows the hard disk drive being removed. All drives
are removed in the same manner. However, it is only necessary to
remove the front bezel when removing the hard disk drive or diskette
drive.
7. Make sure the drive that you are installing is set correctly as either a master
or a slave device. Jumper the new drive the same as the drive being replaced.
Note: If you are installing a serial ATA drive, no master/slave jumpering is
necessary.
Refer to the documentation that comes with your drive for master/slave
jumper information.
8. Install the new drive into the bay. Align the screw holes and install the screws
to secure the drive.
Chapter 8. Replacing FRUs (Types 8126, 8174, 8175, and 8176) 103