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Chapter 4: Chassis Setup and Maintenance
Internal Power and Data Connections
Connect each of the following cables, as required, by your motherboard manufacturer. In some
instances, some cables may not need to be connected. Some cables may not be available
with your model. See Section 4-8 for instructions on how to install or replace a power supply.
Power Supply Cable s
Name
Qty
Connects to:
Description
20-pin or 24-pin power cable 1
Motherboard
20-pin or 24-pin power cable provides electricity
to the motherboard. and has twenty to twenty-four
yellow, black, gray, red, orange, green and blue
wires.
Hard drive power cable
2
Backplane
Connect HDD power connectors to the HDD
backplane for hot-swappable HDD support.
8-pin motherboard cable
1
Motherboard
Provides power to the motherboard CPU. This cable
has two black and two yellow wires.
4-pin motherboard cable
1
Motherboard
Provides power to PCI expansion card. This cable
has two black and two yellow wires.
5-pin SMBus power cable
(small)
1
Motherboard
Allows the SM (System Management) bus to monitor
power supply
2-pin INT cable
1
Motherboard
Intrusion detection cable allows the system to log
when the server chassis has been opened.