Printing and network issues are usually software-based, but rare circumstances require hardware to be replaced. The Dell OptiPlex 330 features an on-board network interface controller, so hardware-based printing and network problems are motherboard issues. Before jumping to replacing the system board, try a few easier fixes.
Drivers
The "Dell Resource CD" contains all of the drivers you need for your system. If you've formatted your computer and reinstalled Windows, you'll need to reinstall hardware-managing drivers to ensure that all parts of the computer are working correctly. Dell's automated recovery program does this automatically, but if you've reinstalled outside of the recovery disc, you can use drivers from the CD-ROM.
Quick Reference Guide
Dell systems also come with a "Quick Reference Guide" that helps users through basic computer problems. Included in the "Quick Reference Guide" is a section about set up a printer. The guide is available online. The process for installing a printer is generally this to install the printer's specific driver or software and then connect the printer via USB.
System Restore
If you continue to have no Internet access or printing abilities, you may need to reinstall Windows. The process is fully automated from the "Dell Recovery CD" or "Dell Resource CD." For a full walk-through, visit the Dell website and enter your system's specific service tag number.
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