- Notes, cautions, and warnings
- Before working inside your computer
- After working inside your computer
- Safety instructions
- Recommended tools
- Screw list
- Removing the base cover
- Replacing the base cover
- Removing the battery
- Replacing the battery
- Removing the memory modules
- Replacing the memory modules
- Removing the wireless card
- Replacing the wireless card
- Removing the coin-cell battery
- Replacing the coin-cell battery
- Removing the fan
- Replacing the fan
- Removing the solid-state drive
- Replacing the solid-state drive
- Removing the hard drive
- Replacing the hard drive
- Removing the I/O board
- Replacing the I/O board
- Removing the touchpad
- Replacing the touchpad
- Removing the speakers
- Replacing the speakers
- Removing the heat sink
- Replacing the heat sink
- Removing the display assembly
- Replacing the display assembly
- Removing the power button with fingerprint reader
- Replacing the power button with fingerprint reader
- Removing the power-adapter port
- Replacing the power-adapter port
- Removing the system board
- Replacing the system board
- Removing the palm-rest and keyboard assembly
- Replacing the palm-rest and keyboard assembly
- Device drivers
- System setup
- Troubleshooting
Inspiron 5485 Service Manual
Dell SupportAssist Pre-boot System Performance Check diagnostics
SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to:
- Run tests automatically or in an interactive mode
- Repeat tests
- Display or save test results
- Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
- View status messages that inform you if tests are completed successfully
- View error messages that inform you of problems encountered during testing
NOTE Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed.
For more information, see https://www.dell.com/support/kbdoc/000180971.
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