Dell OptiPlex 7070 Service Manual page 67

9. Connect the following cables:
a. Intrusion switch
b. Power switch
10. Install the:
a. M.2 PCIe SSD
b. Memory module
c. Processor
d. Heatsink assembly
e. Hard drive and optical drive module
f. HDD assembly
g. Front bezel
h. Side cover
11. Follow the procedure in After working inside your computer.
Removing and installing components 67