To Next Page

To Previous Page

Installing the Motherboard

ATX4P1: Auxiliary Power Connector for Graphics Interface

Pin Signal Name

4 +12V

3 GND

2 GND

1 NC

Make sure to connect a 4-pin ATX power cable to ATX4P1; otherwise,

the system will be unstable.

ATX12V: ATX 12V Power Connector

Pin Signal Name

4 Ground

3 Ground

2 Ground

1 Ground

Pin Signal Name

5 +12V

6 +12V

7 +12V

8 +12V

SPK: Internal speaker

Pin Signal Name

1 VCC

2 Key

3 NC

4 Signal

ATX_POWER: ATX 24-pin Power Connector

1 +3.3V 13 +3.3V

2 +3.3V 14 -12V

3 Ground 15 COM

4 +5V 16 PS_ON

5 Ground 17 COM

6 +5V 18 COM

7 Ground 19 COM

8 PWRGD 20 -5V

9 +5VSB 21 +5V

10 +12V 22 +5V

11 +12V 23 +5V

12 +3.3V 24 COM

Pin Signal Name Pin Signal Name

Questions and Answers:

Need help?

Do you have a question about the ECS A790GXM-A and is the answer not in the manual?

ECS A790GXM-A Specifications

General