Removing The Power-Supply Unit; Prerequisites; Procedure - Dell XPS 8900 Service Manual

Removing the power-supply
unit
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your
computer, follow the instructions in
computer. For more safety best practices, see the Regulatory
Compliance home page at www.dell.com/regulatory_compliance.

Prerequisites

Remove the computer

Procedure

1 Disconnect the DC power cables from the system board, hard drives, and
optical drives.
For more information, see
2 Remove the screws that secure the power-supply unit to the chassis.
3 While pressing and holding the power-supply clamps, slide the power-
supply unit to release the power-supply unit from the power-supply
clamps.
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computer. After working inside your
cover.
"System-board
After working inside your
components".