IBM x3550 - System-Board Internal Connectors; Power Backplane Card Internal Connectors

System-board internal connectors
The following illustration shows the internal connectors on the system board.
CD-RW/DVD connector
Operator information
panel connector
USB front panel
connector
(USB3 and USB4)
Video front panel
connector
SAS signal
connector (J65)
(some models)
SATA 1 signal
connector (port 1)
(some models)
SATA 0 signal
connector (port 0)
(some models)
Microprocessor 1
connector
Power supply
backplane
connector
Power backplane card internal connectors
The following illustration shows the internal connectors on the power backplane
card.
10 IBM System x3550 Type 7978 and 1913: Problem Determination and Service Guide