ECS A790GXM-AD3 User Manual

21
Installing the Motherboard
When installing 8-pin power cable, the latches
of power cable and the ATX12V match per-
fectly.
8-pin power cable
Connecting 8-pin power cable
PWR_FAN/SYS_FAN/NB_FAN: FAN Power Connectors
Pin Signal Name Function
1 GND System Ground
2
+12V Power +12V
3
Sense Sensor
The ATX12V power connector is used to provide power to the CPU.
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
CPU_FAN: Cooling FAN Power Connector
Users please note that the fan connector supports the CPU cooling
fan of 1.1A~2.2A (26.4W max.) at +12V.
1 GND System Ground
2 +12V Power +12V
3 Sense Sensor
4 PWM CPU FAN control
Function
Pin Signal Name

ECS A790GXM-AD3 Specifications

General

Number of memory slots	4
Maximum internal memory	32 GB
Processor socket	Socket AM3
Processor manufacturer	AMD
USB 2.0 connectors	3
Power fan connector	Yes
Number of SATA connectors	6
Number of EATX power connectors	1
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Firewire (IEEE 1394) ports	0
Audio chip	Realtek ALC888
Motherboard chipset	AMD 790GX
Audio output channels	7.1 channels
Motherboard form factor	ATX
PCI Express x16 slots	2
Controller interface type	AMD SB750
Controller 2nd interface type	JMB 361
Graphics card	Radeon HD 3300
RAID levels	0, 1, 10
LAN controller	Realtek RTL8111C
Networking features	Gigabit Ethernet
BIOS memory size	64 Mbit

Weight and Dimensions

Depth	244 mm
Width	305 mm