- Notes, cautions, and warnings
- Working on your computer
- Disassembly and reassembly
- Recommended tools
- SD card
- Battery cover
- Battery
- Hard drive
- Hard drive cable connector
- Keyboard lattice and Keyboard
- Base cover
- SIM card
- Memory modules
- WWAN card
- WLAN card
- Solid State Drive
- Coin-cell battery
- Power connector port
- Palm rest
- Speaker
- Input-Output board
- Heat sink
- Graphics card
- System board
- Fingerprint reader
- Touchpad
- Display assembly
- Power switch board
- ExpressCard Reader
- USB board
- Display bezel
- Display panel
- Display bracket
- Display hinges
- eDP cable
- Camera
- Display cover
- Technology and components
- System specifications
- BIOS setup
- BIOS overview
- Entering BIOS setup program
- Navigation keys
- One time boot menu
- System setup options
- General screen options
- System Configuration screen options
- Video screen options
- Security screen options
- Secure Boot screen options
- Intel Software Guard Extensions screen options
- Performance screen options
- Power Management screen options
- POST Behavior screen options
- Manageability screen options
- Virtualization support screen options
- Wireless screen options
- Maintenance screen options
- System Log screen options
- Updating the BIOS
- System and setup password
- Clearing CMOS settings
- Clearing BIOS (System Setup) and System passwords
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Enhanced Pre-Boot System Assessment — ePSA diagnostics
- Testing memory using ePSA
- Built-in self-test (BIST)
- Diagnostic LED
- Battery status lights
- Recovering the operating system
- Real Time Clock reset
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Contacting Dell
Dell Precision 7520 Owner's Manual
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter, keyboard, mouse, and printer.
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