Connector Definitions; Power Supply Connectors; 4-Pin Pwr Connector (J21); Pw_On Connector - American Megatrends StorTrends 1100-P User Manual

Connector Definitions

Power Supply Connectors

The primary power supply connector on the StorTrends 1100 motherboard meets the SSI
(Superset ATX) 24-pin specification. Refer to the table below for the pin definitions of
the ATX 24-pin power connector. You must also connect the 4-pin J21 power connector
to your power supply. Refer to the table below right for the J24 (12V) connector.
You must connect J21 to your power supply to meet the ATX safety requirements.
Pin
13
14
15
16
17
18
19
20
21
22
23
24
+12V 4-pin PWR Connector (J21)
Required Connection
Pins
1 & 2
3 & 4

PW_ON Connector

The PW_ON connector is located on pins 1 and 2 of JF1. This header should be
connected to the chassis power button, which you may also configure to put the system
into suspend mode (see the Power Button Mode setting in BIOS). To turn off the power
when the suspend mode is enabled, depress the power button for at least 4 seconds. See
the table below for pin definitions.

PW_ON Pin Definitions (JF1)

Pin
1
2
IMPORTANT
Definition Pin
+3.3V 1
-12V 2
COM 3
PS_ON# 4
COM 5
COM 6
COM 7
Res(NC) 8
+5V 9
+5V 10
+5V 11
COM 12
Definition
Ground
+12V
Definition
PW_ON
+3V
Chapter Five : Advanced Motherboard Setup
Definition
+3.3V
+3.3V
COM
+5V
COM
+5V
COM
PWR_OK
5VSB
+12V
+12V
+3.3V
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