Dell Precision 7820 Tower Owner's Manual

Removing the Riser Card and Dual Processor configuration

1. Follow the procedure in Before working inside your computer.
2. Remove the side cover.
3. To remove the central processing unit (CPU):
   1. Remove the air shroud.
      
   2. Loosen the screws [1] and remove the heatsink assembly along with the processor.
      
   3. Disconnect the power cable from the riser card.
      
   4. Press and release the riser card latch.
      
   5. Lift and remove the riser card from the computer.
      
4. To remove the CPU0 and the heatsink assembly:
   1. Remove the air shroud on the CPU0.
      
   2. Remove the screw securing the metal bracket to the chassis.
      
   3. Disconnect the HDD and ODD cable and remove the metal separator from the system.
      
   4. Loosen the heatsink screws from the system board.
      
   5. Disconnect the fan cable from the system board.
      
   6. Lift and remove the CPU0 along with heatsink from the computer.
      
5. To remove the processor from the heatsink assembly:
   1. Press and release the latch that secures the CPU to the heatsink assembly.
      
   2. Pry the securing tabs to release the processor from the heatsink assembly.