- Notes, cautions, and warnings
- Dell EMC PowerEdge R540 overview
- Initial system setup and configuration
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Optional front bezel
- System cover
- Backplane cover
- Inside the system
- Air shroud
- Cooling fans
- Internal PERC riser
- Intrusion switch
- Drives
- Removing a drive blank
- Installing a drive blank
- Removing a 2.5-inch drive from a 3.5-inch drive adapter
- Installing a 2.5-inch drive into a 3.5-inch drive adapter
- Removing a 3.5-inch drive adapter from a 3.5-inch drive carrier
- Installing a 3.5-inch drive adapter into the 3.5-inch drive carrier
- Removing a drive carrier
- Installing a drive carrier
- Removing the drive from the drive carrier
- Installing a drive into the drive carrier
- System memory
- Processors and heat sinks
- Expansion cards and expansion card risers
- Expansion card installation guidelines
- Removing expansion card from the expansion card riser
- Installing expansion card into the expansion card riser
- Removing expansion card from the system board
- Installing expansion card on the system board
- Removing an expansion card riser
- Installing an expansion card riser
- M.2 SSD module
- Optional MicroSD or vFlash card
- Optional IDSDM or vFlash module
- LOM riser card
- Drive backplane
- Cable routing
- Rear drive cage
- System battery
- Optional internal USB memory key
- Optical drive (optional)
- Power supply units
- Hot spare feature
- Removing a power supply unit blank
- Installing a power supply unit blank
- Removing a power supply unit
- Installing a power supply unit
- Removing a non-redundant cabled AC power supply unit
- Installing a non-redundant cabled AC power supply unit
- Removing a DC power supply unit
- Installing DC power supply unit
- Wiring instructions for a DC power supply unit
- Power interposer board
- Control panel
- System board
- Restoring the system using Easy Restore
- Entering the system Service Tag by using System Setup
- Trusted Platform Module
- Jumpers and connectors
- System diagnostics
- Getting help
- Documentation resources
Dell EMC PowerEdge R540 Installation and Service Manual
Removing a DC power supply unit
Prerequisites
NOTE For equipment using
–(48–60) V DC power supply units (PSUs), a qualified electrician must
perform all connections to DC power and to safety grounds. Do not
attempt connecting to DC power or installing grounds yourself. All
electrical wiring must comply with applicable local or national codes
and practices. Damage due to servicing that is not authorized by Dell
is not covered by your warranty. Read and follow all safety instructions
that came with the product.
CAUTION The system needs one
PSU for normal operation. On power-redundant systems, remove and replace only one PSU at a time in a system that is powered on.
- Follow the safety guidelines listed in Safety instructions.
- Disconnect the power wires from the power source and the connector from the PSU you intend to remove.
- Disconnect the safety ground wire.
- Unlatch and lift the optional cable management arm if it interferes with PSU removal. For information about the cable management arm, see the system’s rack documentation at www.dell.com/poweredgemanuals.
Steps
Press the release latch and slide the PSU out of the system by using
the PSU handle.
Next steps
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