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Dust Filter for OptiPlex Tower The dust filter for the Dell OptiPlex Tower helps protect the system from fine dust particles. After installation, the BIOS can be enabled to generate a preboot reminder to clean or replace the dust filter based on the time interval set.
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NOTE: Dust filter design may vary. 4. Restart the system and press F2 to enter the BIOS Setup menu. 5. In the BIOS Setup menu, go to System Configuration > Dust Filter Maintenance and select from any of the following intervals: 15, 30, 60, 90, 120, 150, or 180 days.
About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1.