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ECS A790GXM-AD3 User Manual

ECS A790GXM-AD3
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16
Installing the Motherboard
F_USB1~3: Front Panel USB headers
The motherboard has six USB ports installed on the rear edge I/O port array. Addi-
tionally, some computer cases have USB ports at the front of the case. If you have
this kind of case, use auxiliary USB connector to connect the front-mounted ports to
the motherboard.
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or
system hang-up.
1 USBPWR Front Panel USB Power
2 USBPWR Front Panel USB Power
3 USB_FP_P0- USB Port 0 Negative Signal
4 USB_FP_P1- USB Port 1 Negative Signal
5 USB_FP_P0+ USB Port 0 Positive Signal
6 USB_FP_P1+ USB Port 1 Positive Signal
7 GND Ground
8 GND Ground
9 Key No pin
10 USB_FP_OC0 Overcurrent signal
Function
Pin Signal Name
SPDIFO: SPDIF out header
This is an optional header that provides an S/PDIF (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
2 +5VA 5V analog Power
3 Key No pin
4 GND Ground
Pin Signal Name Function
1 SPDIF SPDIF digital output
F_AUDIO: Front Panel Audio header for Azalia
This header allows the user to install auxiliary front-oriented microphone and line-
out ports for easier access.
Pin Signal Name Function
1 PORT 1L 2 AUD_GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY
Pin Signal Name
9 PORT 2L 10 SENSE2_RETURN
Pin Signal Name

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ECS A790GXM-AD3 Specifications

General IconGeneral
Number of memory slots4
Maximum internal memory32 GB
Processor socketSocket AM3
Processor manufacturerAMD
USB 2.0 connectors3
Power fan connectorYes
Number of SATA connectors6
Number of EATX power connectors1
USB 2.0 ports quantityUSB 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) ports0
Audio chipRealtek ALC888
Motherboard chipsetAMD 790GX
Audio output channels7.1 channels
Motherboard form factorATX
PCI Express x16 slots2
Controller interface typeAMD SB750
Controller 2nd interface typeJMB 361
Graphics cardRadeon HD 3300
RAID levels0, 1, 10
LAN controllerRealtek RTL8111C
Networking featuresGigabit Ethernet
BIOS memory size64 Mbit
Weight and Dimensions IconWeight and Dimensions
Depth244 mm
Width305 mm

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