IBASE MI900 - Manual (Page 18)

INSTALLATIONS
ATX1: 24-pin ATX Power Connector
Signal Name Pin # Pin # Signal Name
3.3V 13 1 3.3V
-12V 14 2 3.3V
Ground 15 3 Ground
PS-ON 16 4 +5V
Ground 17 5 Ground
Ground 18 6 +5V
Ground 19 7 Ground
-5V 20 8 Power good
+5V 21 9 5VSB
+5V 22 10 +12V
+5V 23 11 +12V
Ground 24 12 +3.3V
ATX2: ATX 12V Power Connector
This connector supplies the CPU operation voltage
Pin # Signal Name
1 Ground
2 Ground
3 +12V
4 +12V
CPU_FAN1: CPU Fan Power Connector
Pin # Signal Name
1 Control
2 Sense
3 +12V
4 Ground
PWR_FAN1: SYSTEM Fan Power Connectors
Pin # Signal Name
1 Sense
2 +12V
3 Rotation
detection
14 MI900 User’s Manual