Dell Precision 390 - Manual (Page 68)

Installing a Hard Drive or Adding a Second Optional Hard Drive (Tower or Desktop Computer)
1. Unpack the replacement hard drive, and prepare it for installation.
2. Check the documentation for the hard drive to verify that the drive is configured for your computer.
3. If your replacement hard drive does not have the hard-drive bracket attached, remove the bracket from the old drive by unsnapping it from the drive.
Snap the bracket onto the new drive.
4. Slide the hard drive into the primary or secondary hard-drive bay until it clicks securely into place.
5. Connect the power cable to the drive.
6. Install the hard drive.
To install a serial ATA hard drive:
a. Connect one end of the serial ATA cable to the hard drive.
b. If you are installing a serial ATA hard drive in the primary hard-drive bay, connect the other end of the serial ATA cable to the SATA0 connector on the
system board.
If you are installing a serial ATA hard drive in the secondary hard-drive bay, connect the other end of the serial ATA cable to the SATA1 connector on
the system board.
To install a SAS hard drive:
a. Connect the power cable to the SAS connector.
NOTE: If a hard-drive bracket is still installed in the inside of the hard-drive bay, remove the bracket before you install the new hard drive with the new
or old hard-drive bracket.
1 drive 2 hard-drive bracket
NOTICE: If you are installing only one hard drive, install it in the primary hard-drive bay. If you are adding a second hard drive, install it in the secondary
hard-drive bay.
1 serial ATA cable 2 SATA0 connector 3 SATA1 connector
4 power cable 5 secondary hard-drive bay 6 hard drive in lower hard-drive bay