- Notes, cautions, and warnings
- Working on your computer
- Technology and components
- Disassembly and reassembly
- Troubleshooting
- Getting help
Built-in Self-Test (BIST) helps determine if the power-supply unit is working. To run self-test diagnostics on the power-supply unit of a desktop or all-in-one computer, see the knowledge base article 000125179 at www.dell.com/support.