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20-pin main power supply connection
See “A20 system board layout (Type 6269)” on page 146 or “A40/A40P system
board layout
(Types 6058/6059/6578/6579)” on page 148 for connector locations.
Attention
These voltages must be checked with the power supply cables connected
to the system board.
Pin Signal Function
1 3.3 V +3.3 V dc
2 3.3 V +3.3 V dc
3 COM Ground
4 5V +5Vdc
5 COM Ground
6 5V +5Vdc
7 COM Ground
8 POK Power Good
9 5VSB Standby Voltage
10 12 V +12 V dc
11 3.3 V +3.3 V dc
12 -12V -12Vdc
13 COM Ground
14 PS-ON DC Remote Enable
15 COM Ground
16 COM Ground
17 COM Ground
18 No voltage Not used
19 5V +5Vdc
20 5V +5Vdc
Chapter 3. Types 6058/6059/6269/6578/6579 109