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Dell Inspiron 3891 - Installing the Power-Supply Unit

Dell Inspiron 3891
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Steps
1. Lay the computer with its left side facing up.
2. Remove the three screws (6-32) that secure the power supply to the chassis.
3. Disconnect the power-supply unit cables from the system board.
NOTE:
The power-supply unit cables are connected to the system board at two locations and supply power to the
following components at the two locations:
Processor
System board
4. Remove the power-supply cables from the routing guides on the chassis.
5. Press down on the securing clip to release the power supply from the chassis.
6. Slide and lift the power supply from its slot on the chassis.
Installing the power-supply unit
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
Removing and installing components
35

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