Dell OptiPlex 7070 Small Form Factor Service Manual

Installing heatsink assembly

1. Align the heatsink assembly onto the processor [1].
2. Tighten the 4 captive screws to secure the heatsink assembly to the system board [2].
   NOTE:Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board.
3. Connect the heatsink assembly fan cable to the connector on the system board [3].
   
4. Install the:
   1. Hard drive and optical drive module
   2. HDD assembly
   3. Front bezel
   4. Side cover
5. Follow the procedure in After working inside your computer.