- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of Inspiron 14 5402
- Base cover
- Battery
- Memory module
- Solid-state drive—M.2 slot one
- Solid-state drive—M.2 slot two
- Removing the M.2 2230 solid-state drive from M.2 slot two
- Installing the M.2 2230 solid-state drive in M.2 slot two
- Removing the M.2 2280 solid-state drive/Intel Optane storage from M.2 slot two
- Installing the M.2 2280 solid-state drive/Intel Optane storage in M.2 slot two
- Installing the solid-state drive bracket
- WLAN card
- Fan
- Coin-cell battery
- Power-adapter port
- Display assembly
- I/O board
- Touchpad
- Speakers
- Heat sink
- Power button with optional fingerprint reader
- System board
- Palm-rest and keyboard assembly
- Drivers and downloads
- System setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Locate the Service Tag or Express Service Code of your Dell computer
- SupportAssist diagnostics
- Built-in self-test (BIST)
- Recovering the operating system
- System diagnostic lights
- Enabling Intel Optane memory
- Disabling Intel Optane memory
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
Inspiron 14 5402 Service Manual
Removing the I/O board
Prerequisites
NOTE Removing the I/O-board requires the coin-cell battery to be disconnected. the action of which resets the BIOS setup program's settings to default. It is recommended that you note the BIOS setup program's settings before removing the coin-cell battery.
- Follow the procedure in Before working inside your computer.
- Remove the base cover.
- Remove the display assembly.
About this task
The following images indicate the location of the I/O board and provide a visual representation of the removal procedure.
Steps
- Peel the tape that secures the I/O-board cable to the I/O board.
- Open the latch and disconnect the power-button cable (or fingerprint-reader cable, if applicable) from the I/O board.
- Open the latch and disconnect the I/O-board cable from the I/O board.
- Disconnect the coin-cell battery cable from the I/O board.
- Remove the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly.
- Lift the I/O board off the palm-rest and keyboard assembly.
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