Dell Precision 490 - Manual (Page 59)

4. Remove the computer cover (see Removing the Computer Cover ).
5. Remove the drive panel (see Removing the Drive Panel ).
6. If the FlexBay is not populated and metal shields are present in your computer (see About the Metal Shields Present in Some Drive Configurations for
more information):
slide the sliding-plate lever to the right and hold it in place as you pull to remove the vented metal insert from the FlexBay.
7. If you already have a floppy drive or Media Card Reader installed in the FlexBay, remove it (see Removing a Floppy Drive (Tower Computer) or Removing a
Media Card Reader (Tower Computer) ).
8. If you already have a hard drive installed in the FlexBay, remove the hard drive (see Removing an Optional Third Hard Drive (Tower Computer Only) ).
9. Gently slide the drive into place in the FlexBay; the drive clicks through two notches before it is securely installed.
10. Connect a power cable to the back of the hard drive.
11. Connect a data cable to the back of the hard drive and, if it is a SATA drive, connect the other end to the SATA_2 connector on the system board.
NOTICE: If metal shields are present in your computer configuration, they must be installed at all times while your computer is in use or your computer
may not function properly.
1 sliding-plate lever
2 optional third hard drive in FlexBay
1 sliding-plate lever 4 power supply
2 SATA data cable 5 SATA_2 connector
3 power cable 6 optional SATA hard drive in FlexBay