- Notes, cautions, and warnings
- Before working inside your computer
- After working inside your computer
- Technical overview
- Removing the right-side cover
- Replacing the right-side cover
- Removing the front bezel
- Replacing the front bezel
- Removing the optical drive
- Replacing the optical drive
- Removing the top cover
- Replacing the top cover
- Removing the bottom cover
- Replacing the bottom cover
- Removing the primary hard-drive
- Replacing the primary hard-drive
- Removing the secondary hard-drive
- Replacing the secondary hard-drive
- Removing the solid-state drive
- Replacing the solid-state drive
- Removing the power-supply unit
- Replacing the power-supply unit
- Removing the coin-cell battery
- Replacing the coin-cell battery
- Removing the graphics card
- Replacing the graphics card
- Removing the full-length graphics cards
- Replacing the full-length graphics cards
- Removing the memory modules
- Replacing the memory modules
- Removing the power-button module
- Replacing the power-button module
- Removing the top I/O-panel
- Replacing the top I/O-panel
- Removing blower and heat-sink assembly
- Replacing blower and heat-sink assembly
- Removing the VR heat sink
- Replacing the VR heat sink
- Removing the processor fan and heat-sink assembly
- Replacing the processor fan and heat-sink assembly
- Removing the chassis fan
- Replacing the chassis fan
- Removing the processor
- Replacing the processor
- Removing the wireless card
- Replacing the wireless card
- Removing the antenna
- Replacing the antenna
- Removing the system board
- Replacing the system board
- Downloading drivers
- System setup
- Troubleshooting
- Getting help and contacting Dell
XPS 8910 Service Manual
Steps to confirm that power-supply unit is defective
- Disconnect the power cord from the power-supply
unit.
CAUTION: Ensure that you take adequate safety precautions before accessing the components on your computer. See the removing and replacing instructions in the service manual for procedure to access the power-supply unit and its cables.
- Disconnect the power-supply unit cables from the system board.
- Connect the power cord to the power-supply unit.
- If the LED is on for 3 seconds and turns off, it indicates that the power-supply unit is functional. Continue with troubleshooting steps for other devices.
- If the LED does not turn on, it indicates a power-supply unit failure. Replace the power-supply unit only.
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