IBM 6568, 6578, 6579, 6269, 6059, 6058, 6569, 6648, 6649 manual Pin main power supply connection

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	5 V	+5 V dc
5	COM	Ground
6	5 V	+5 V dc
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	-12 V	-12 V dc
13	COM	Ground
14	PS-ON	DC Remote Enable
15	COM	Ground
16	COM	Ground
17	COM	Ground
18	No voltage	Not used
19	5 V	+5 V dc
20	5 V	+5 V dc

Chapter 3. Types 6058/6059/6269/6578/6579 109