- Notes, cautions, and warnings
- Working on your computer
- Disassembly and reassembly
- Recommended tools
- Screw size list
- Subscriber Identification Module (SIM) card
- Base cover
- Battery
- PCIe Solid State Drive (SSD)
- Speaker
- Coin-cell battery
- WWAN card
- WLAN card
- Memory modules
- Heat sink
- LED board
- Smart card module
- Touchpad
- Power connector port
- Display Assembly
- Touch display panel
- Display Bezel
- Nontouch display panel
- Camera Microphone Module
- Display Hinge Caps
- Removing dummy SIM card tray
- System board
- Keyboard lattice and Keyboard
- Palm rest
- System specifications
- Supported operating systems
- Processor specifications
- System specifications
- Memory specifications
- Storage specifications
- Video specifications
- Audio specifications
- Battery specifications
- AC adapter specifications
- Docking options
- Port and connector specifications
- Communication specifications
- Camera specifications
- Touchpad specifications
- Display specifications
- Physical specifications
- Environmental specifications
- System Setup
- BIOS overview
- Entering BIOS setup program
- Navigation keys
- One time boot menu
- System setup options
- General screen options
- System Configuration screen options
- Video
- 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
- Virtualization support screen options
- Wireless screen options
- Maintenance screen
- System logs
- Advanced or Engineering configurations
- SupportAssist system resolution
- Updating the BIOS
- System and setup password
- Clearing CMOS settings
- Clearing BIOS (System Setup) and System passwords
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System diagnostic lights
- Real-Time Clock (RTC Reset)
- Recovering the operating system
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Contacting Dell
Dell Latitude 7480 Owner's Manual
Removing heat sink assembly
Heat sink assembly consists of heat sink and the system fan.
- Follow the procedure in Before working inside your computer.
- Remove the base cover.
- Disconnect the battery cable from the connector on the system board.
- To remove the heat sink assembly:
NOTE: To identify the number of screws, see screw list.
- Disconnect the fan cable from the system board [1].
NOTE: After removing the heat sink assembly, ensure to disconnect the fan cable.
- Remove the M2.0 x 5.0 screws that secure the heat sink assembly to the system board [2].
NOTE: Remove the screws in the order of the callout numbers [1, 2, 3, 4] as indicated on the heat sink.
- Lift the heat sink assembly from the system board [3].
- Disconnect the fan cable from the system board [1].
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