Dell OptiPlex Small Form Factor 7020 Owner's Manual page 111

Figure 64. Installing the system board
4. Route and connect the SATA power cable to its connector (SATA PWR) on the system board.
5. Route and connect the optical-drive/hard-drive data cable to its connector (SATA-3) on the system board.
6. Route and connect the hard-drive data cable to its connector (SATA-0) on the system board.
7. Route and connect the system-fan cable to its connector (FAN SYS) on the system board.
8. Route and connect the power-button cable to its connector (PWR SW) on the system board.
9. Route and connect the power-supply cables to their connectors (ATX CPU1, ATX CPU2 and ATX SYS) on the system board.
Figure 65. Installing the system board
10. Place and align the front I/O-bracket with the I/O slot on the chassis.
11. Replace the screw (#6-32) that secures the front I/O-bracket to the chassis.
Next steps
1. Install the optional I/O modules, whichever is applicable.
Removing and installing Field Replaceable Units (FRUs)
Restricted - Confidential
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