- Working on your computer
- Disassembly and reassembly
- System Overview
- Removing the Secure Digital (SD) card
- Installing the SD Card
- Removing the ExpressCard
- Installing the ExpressCard
- Removing the Battery
- Installing the Battery
- Removing the Micro Subscriber Identity Module (SIM) Card
- Installing the Micro Subscriber Identity Module (SIM) Card
- Removing the Keyboard Trim
- Installing the Keyboard Trim
- Removing the Keyboard
- Installing the Keyboard
- Removing the Base Cover
- Installing the Base Cover
- Removing the Primary Memory
- Installing the Primary Memory
- Removing the Secondary Memory
- Installing the Secondary Memory
- Removing the Optical Drive
- Installing the Optical Drive
- Removing the Hard Drive from the Hard Drive slot
- Installing the Hard Drive from the Hard Drive slot
- Removing the Hard Drive from the Optical Drive slot
- Installing the Hard Drive from the Optical Drive slot
- Removing the Wireless Local Area Network (WLAN) Card
- Installing the Wireless Local Area Network (WLAN) Card
- Removing Wireless Wide Area Network (WWAN) Card (Optional)
- Installing the Wireless Wide Area Network (WWAN) Card (Optional)
- Removing the Processor Fan
- Installing the Processor Fan
- Removing the Video-Card Fan
- Installing the Video-Card Fan
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Palmrest
- Installing the Palmrest
- Removing the ExpressCard Module
- Installing the ExpressCard Module
- Removing the Processor Heat-Sink
- Installing the Processor Heat-Sink
- Removing the Processor
- Installing the Processor
- Removing The Video-Card Heat Sink
- Installing the Video-Card Heat Sink
- Removing the Video Card
- Installing the Video Card
- Removing the Input/Output (I/O) Board
- Installing the I/O Board
- Removing the Switch Board
- Installing the Switch Board
- Removing the Unified Security Hub (USH) Board
- Installing the USH Board
- Removing the Display Assembly
- Installing the Display Assembly
- Removing the Hinge Cover
- Installing the Hinge Cover
- Removing the System Board
- Installing the System Board
- Removing the Power-Connector Port
- Installing the Power-Connector Port
- Removing the Display Bezel
- Installing the Display Bezel
- Removing the Display Panel
- Installing the Display Panel
- Removing the Camera
- Installing the Camera
- System setup
- Diagnostics
- Troubleshooting your computer
- Contacting Dell
Le damos la bienvenida
Le damos la bienvenida a Dell
Mi cuenta
- Realice pedidos rápida y fácilmente.
- Vea los pedidos y haga el seguimiento del estado del envío.
- Cree una lista de sus productos y acceda a ella
- Gestione sus sitios, productos y contactos a nivel de producto de Dell EMC con la administración de empresa.
Dell Precision Mobile Workstation M4800 Owner's Manual
Enhanced Pre-Boot System Assessment — ePSA diagnostics
About this task
The ePSA diagnostics can be initiated by the FN+PWR buttons while powering on the computer.
- 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.
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