Question: Graphics card, old mobo, and HDMI audio

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Batman

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#171521 21-Apr-2015 15:24

Hi can someone explain how HDMI audio out of graphics card works on a desktop.

Say if i bought a core2duo desktop. And i put in a cheap graphics card for 1080p. (*ATI vs NVIDIA??)

WIll i get HDMI 5.1 audio just like that? Or does it need another cable to connect?

Inphinity

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#1288601 21-Apr-2015 15:47

If the graphics card supports it, you should see the HDMI out as an audio device in Windows which you can select.

Batman

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#1288625 21-Apr-2015 15:55

Ok so no mobo cable needed

Wade

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#1288757 21-Apr-2015 19:12

I've got a C2D Dell 755 with ATi HD4550 graphics card and can confirm it outputs audio over HDMI. I have not tested multi channel but definitely works in stereo. No additional cables etc, just card in PCie slot

reven

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#1288759 21-Apr-2015 19:16

joker97: Ok so no mobo cable needed

correct.

Batman

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#1288763 21-Apr-2015 19:18

thanks

Lias

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#1288784 21-Apr-2015 20:35

Basically the graphics card has a rudimentary sound card built into it, and it uses that rather than any other sound card in the system. If you have a stand alone soundcard like a Xonar or something, be aware it will not be using that.

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#1288789 21-Apr-2015 20:45

ok thanks

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#1289255 22-Apr-2015 13:01

for audio via HDMI
On old vid cards it may not work (I had to replace mine with a newer card)

New vid cards, it shouldnt be an issue ...as long as the vid card has a HDMI connector, Im not sure if it will work
through an adaptor

Getting surround/5.1 to work through it is another story :-)