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Installing the Motherboard

Users please note that the fan connector supports the CPU cooling fan of

1.1A ~ 2.2A (26.4W max) at +12V.

ATX_POWER: ATX 24-pin Power Connector

CPU_FAN: CPU Cooling FAN Power Connector

1 GND System Ground

Sense Sensor

4 PWM PWM

Pin Signal Name Function

2 +12V Power +12V

Pin Signal Name Pin Signal Name

1 +3.3V 13 +3.3V

3 Ground 15 Ground

4 +5V 16 PS_ON

5 Ground 17 Ground

6 +5V 18 Ground

7 Ground 19 Ground

8 PWRGD 20 -5V

9 +5VSB 21 +5V

10 +12V 22 +5V

11 +12V 23 +5V

12 +3.3V 24 Ground

2 +3.3V 14 -12V

ATX12V: ATX 12V Power Connector

Pin Signal Name

4 +12V

3 +12V

2 Ground

1 Ground

SPK: Internal speaker

Pin Signal Name

1 VCC

2 Key

3 NC

4 Signal

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ECS G31T-M9 Specifications

General

Number of memory slots	2
Maximum internal memory	4 GB
Processor socket	LGA 775 (Socket T)
Processor manufacturer	Intel
CPU fan connector	Yes
USB 2.0 connectors	1
USB 2.0 ports quantity	4
Firewire (IEEE 1394) ports	0
Audio chip	VIA VT1708B
Power source type	ATX
Audio output channels	5.1 channels
Motherboard form factor	micro ATX
Compatible operating systems	Core2 Duo/ Pentium Dual Core/ Celeron Dual Core/ Celeron 400
Graphics card	GMA 3100
Networking features	Fast Ethernet
ACPI version	1.0
BIOS memory size	32 Mbit