Sony PCV-RX770 Computer User Guide (primary manual), System Reference Manual

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System Board
49
Power Supply and Aux Power Headers
The power supply header on the system board connects to the power
supply header labelled P1.
Power Supply header
Pin Signal Name
1 +3.3 V
2 +3.3 V
3 Ground
4 +5 V
5 Ground
6 +5 V
7 Ground
8 PWRGD (Power Good)
9 +5 VSB
10 +12 V
11 +3.3 V
12 -12 V
13 Ground
14 PS-ON# (power supply remote on/off control)
15 Ground
16 Ground
10
1 11
20
1
2
3
4