IBM 8185 - ThinkCentre M50 - 256 MB RAM User Manual page 55

7. Install the drive into the bay. Align the screw holes and insert the two screws.
8. Pivot the drive-bay cage back into place.
9. A hard disk drive requires two cables; a power cable that connects to the power
supply and a signal cable that connects to the system board.
v A parallel ATA hard disk drive requires a four-wire power cable.
v A serial ATA hard disk drive requires a five-wire power cable.
The steps to connect a drive are different depending on the type of drive you are
connecting. Use one of the following procedure for your drive connection.
Connecting the first CD drive or DVD drive
1. Locate the three-connector signal cable that comes with your computer or with
the new drive.
2. Locate the PATA secondary IDE connector on the system board. See
"Identifying parts on the system board" on page 32.
3. Connect one end of the signal cable to the drive and the other to the PATA
secondary IDE connector on the system board. To reduce electronic noise, use
the connectors at the end of the cable only.
Chapter 2. Types 8128, 8187, 8188, 8193, 8414, and 8431
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