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Assembling DC input power wires
Prerequisites
WARNING:
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.
Steps
1. Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire.
NOTE:
Reversing polarity when connecting DC power wires can permanently damage the power supply or the system.
2. Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating connector using
a Phillips #2 screwdriver.
NOTE:
To protect the power supply from electrostatic discharge, the captive screws must be covered with the rubber
cap before inserting the mating connector into the power supply.
3. Rotate the rubber cap clockwise to fix it over the captive screws.
4. Insert the mating connector into the power supply.
System board
A system board (also known as the motherboard) is the main printed circuit board in the system with different connectors
used to connect different components or peripherals of the system. A system board provides the electrical connections to the
components in the system to communicate.
NOTE:
After the system board is replaced, you must update the system with the latest available BIOS and iDRAC versions.
For more information, go to Dell.com/XCSeriesmanuals.
Removing the system board
Prerequisites
CAUTION:
If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted
to create a recovery key during program or System Setup. Be sure to create and safely store this recovery key.
If you replace this system board, you must supply the recovery key when you restart your system or program
before you can access the encrypted data on your hard drives.
CAUTION:
Do not attempt to remove the TPM plug-in module from the system board. Once the TPM plug-in
module is installed, it is cryptographically bound to that specific system board. Any attempt to remove an
installed TPM plug-in module breaks the cryptographic binding, and it cannot be re-installed or installed on
another system board.
1. Follow the safety guidelines listed in
2. Follow the procedure listed in
3. Remove the following:
a.
Air shroud
b.
Power supply unit(s)
c. All
expansion card risers
d.
Integrated storage controller card
e.
vFlash/IDSDM module
f.
USB 3.0 module
(if installed)
g.
Processors and heat sink modules
Safety instructions
Before working inside your system
on page 55.
on page 56.
Installing and removing system components
111
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