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Dell™Optiplex™740Systems
User's Guide
I/O Panel
I/O Panel
Removing the I/O Panel
1. Follow the procedures in Before You Begin.
2. Remove the optical drive and floppy drive or Media Card Reader from the drive bays, if installed (see Drives).
3. Remove the processor heat sink (see Processor).
4. Remove the front fan:
a. Disconnect the fan connector.
b. Disconnect the fan control cable.
c. Press the tab that secures the fan to the interior base of the computer and lift the fan from the computer; set the fan aside in the chassis.
5. Disconnect all cables that are connected to the I/O panel that you can access without removing the I/O panel.
Note the routing of the cables as you lay them aside, so that you can replace them correctly.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
NOTE: Note the routing of all cables as you remove them so that you can re-route them correctly when installing the new I/O Panel.
1
fan control ribbon cable
2
fan release tab
3
fan cable