3. Install the:a. Hard drive and optical drive moduleb. HDD assemblyc. Front bezeld. Side cover4. Follow the procedure in After working inside your computer.System boardRemoving system board1. Follow the procedure in Before working inside your computer.2. Remove the:a. Side coverb. Coin cellc. Front bezeld. HDD assemblye. Hard drive and optical drive modulef. Heatsink assemblyg. Processorh. Memory modulei. M.2 PCIe SSD3. Disconnect the following cables:a. Intrusion switchb. Power switch60 Removing and installing components

Dell OptiPlex 7070 Service Manual