Dell Precision T3500 (Early 2009) - Manual (Page 23)

Front Fan Assembly
Dell Precision™ T3500 Service Manual
Removing the Front Fan Assembly
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the computer cover .
3. Lift the hard drive tray:
a. Push and hold the blue release tab toward the bottom of the computer.
b. Raise the hard drive tray on its hinges.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.