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(SPDIF)GPU to Mobo, 3 pins?

Messages
72
Location
Philippines
#1
I have a 9800gt and I wanted to use the HDMI on the GPU to output video and audio at the same time so after some searching, I need to connect the GPU to the SPDIF port on the Mobo. The problem is, there are 3 pins on the SPDIF on the motherboard and only 2 pins on the cable supplied with the GPU. My motherboard is an ECS 6100pm and as you can see here, the SPDIF output has 3 pins. Which pins do I connect to?

What I can see on the motherboard is something like this Pin1 - Pin 2 - (no pin) - Pin 3
 

My Computer

System One

  • CPU
    Athlon 250 @ 3Ghz
    Motherboard
    ECS 6100pm
    Memory
    2GB DDR2
    Graphics Card(s)
    9800gt Inno3d Green
    Screen Resolution
    1366 x 768

roy69

47,65,65,6B
Vista Guru
Gold Member
Messages
2,607
Location
uk
#2
The manual to your motherboard ECS Web Site

Look at page 23

pin 1 SPDIF digital output
pin 2 5v analog Power
pin 3 Key (no pin)
pin 4 Ground

Update your system spec as it does not match your graphics card, I also need to know the manafacturer of your graphics card.
 

My Computer

System One

  • Manufacturer/Model
    Self Built
    CPU
    I5 3570K
    Motherboard
    Gigabyte Z77-DS3H
    Memory
    4 x 4GB corsair ballistix sport DDR3 1600 Mhz
    Graphics Card(s)
    Gigabyte Geforce GTX 660 TI
    Sound Card
    creative x-fi
    Monitor(s) Displays
    Primary CiBox 22" Widescreen LCD ,Secondary Dell 22" Widescreen
    Screen Resolution
    Both 1680 x 1050
    Hard Drives
    2 x 500G HD (SATA) 1 x 2TB USB
    PSU
    Corsair HX 620W ATX2.2 Modular SLI Complient PSU
    Case
    Antec 900 Ultimate Gaming Case
    Cooling
    3 x 80mm tri led front, 120mm side 120mm back, 200mm top
    Mouse
    Technika TKOPTM2
    Keyboard
    Logik
    Internet Speed
    288 / 4000
    Other Info
    Creative Inspire 7.1 T7900 Speakers
    Trust Graphics Tablet
Messages
72
Location
Philippines
#3
There, updated. I have yet to try it but I think Pin 1 and 4 sounds about right. thanks!
 

My Computer

System One

  • CPU
    Athlon 250 @ 3Ghz
    Motherboard
    ECS 6100pm
    Memory
    2GB DDR2
    Graphics Card(s)
    9800gt Inno3d Green
    Screen Resolution
    1366 x 768

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