Dell OptiPlex 3070 Micro Service Manual

Installing heatsink

1. To install the heatsink:
   1. Place the heatsink on the processor [1].
   2. Tighten the fourthree (M3) captive screws to secure the heat sink to the system board [2].
      
      NOTE The heatsink assembly is secured to the system board with four screws and three screws for 35 W and 65 W CPU respectively.

      
2. Install the:
   1. Heatsink fan
   2. 2.5–inch hard drive assembly
   3. Side cover
3. Follow the procedure in After working inside your computer.