Dell Precision 3431 Small Form Factor Service Manual

Installing the hard drive assembly

1. To replace the 2.5 inch hard drive from the assembly bracket:
   1. Align the tabs on the hard drive with the slots on the hard drive assembly at a 30 degree angle [1].
   2. Press the hard drive so that it gets secured to the hard drive assembly bracket [2].
      
2. To replace the 3.5 inch hard drive from the assembly bracket:
   1. Align the tabs on the hard drive with the slots on the hard drive assembly at a 30 degree angle [1].
   2. Press the hard drive so that it gets secured to the hard drive assembly bracket [2].
      
3. To replace the hard drive assembly:
   1. Insert the hard drive assembly into the slot on the system [1,2].
   2. Connect the power cable and hard drive cable to the connectors on the hard drive [3,4].
      
4. Install the Side cover.
5. Follow the procedure in After working inside your computer.