Sun Microsystems Netra X4200 M2, Service Manual

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150 Netra X4200 M2 Server Service Manual • May 2007
Motherboard Bus-Bar Power Connector
Main power is delivered to the motherboard through a bus bar. There are two pads on
the underside of the motherboard that c12 V and ground. The pads have
been designed to handle 50 A. The motherboard bus bar connector pads and their
corresponding descriptions are shown in the figure and table in this section.
75 GND
76 SPINDLE_ID1
77 SAS_DISK0_RX_N
78 GND
79 SAS_DISK0_RX_P
80 PS_KILL
TABLE D-8
Flex Cable Motherboard Connector Pinouts (Continued)
Pin Number Signal Name