# SPDIF input for audio over HDMI? **URL:** \ **Category:** NYSpeed Off Topic\ **Created:** [December 8, 2008, 11:28am UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388 "2008-12-08T11:28:47Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 8, 2008, 11:28am UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/1 "2008-12-08T11:28:47Z")
I want to have the ability to directly hook my computer up to the TV over HDMI. My video card has the ability to do this by way of an SPDIF input cable. The problem is, I can’t seem to find the appropriate output on my motherboard (using onboard sound). It’s only 2 wires… one being a ground. any ideas on how to get this working? I image that any audio source would work… can anyone verify that? So, instead of using the specific SPDIF out, can I just use headphone out as long as the ground is attached to the appropriate place? ideas? I don’t have room for a 3rd party PCI card Or if you want to look at the manual, the mobo is a DFI Bloodiron p35 T2RL. I looked through the manual like 3 times looking for something on this but didn’t see anything. ---
**Author:** ![JustinH](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@JustinH](https://forums.speedlife.net/u/JustinH)\ **Post date:** [December 8, 2008, 11:36am UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/2 "2008-12-08T11:36:57Z")
You want something like this [http://www.gefen.com/kvm/dproduct.jsp?prod\_id=3570](http://www.gefen.com/kvm/dproduct.jsp?prod_id=3570) Only you obviously don’t want to spend 300 dollars… Maybe monoprice has a similar device for 30 bucks… ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 8, 2008, 11:49am UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/3 "2008-12-08T11:49:51Z")
thanks for the heads up justin. That looks like it would work, but my video card is supposed to support it OOTB it has a port on it like this ![http://www.pcper.com/images/reviews/577/gtx280_audio.jpg](http://www.pcper.com/images/reviews/577/gtx280_audio.jpg) I just need an audio out source from the mobo to hook it up to, so audio is carried over the HDMI cable as well as video (only video is being sent at the moment) ---
**Author:** ![BillysRevenge](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@BillysRevenge](https://forums.speedlife.net/u/BillysRevenge)\ **Post date:** [December 8, 2008, 5:51pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/4 "2008-12-08T17:51:30Z")
dvi to HDMI S/PDIF is used for Audio signals BTW not video… ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 8, 2008, 6:12pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/5 "2008-12-08T18:12:59Z")
no, I’m running HDMI from my video card already. The 2 wire cable from that picture I posted is a SPDIF connector that enables it to carry audio over the HDMI cable along with the video signal, the problem is that I cannot find a side by side 2 pin audio out on my motherboard. Either I’m missing it or don’t have one in which case I’m wondering if I can just use the headphone pins on the motherboard to do the same thing. As long as I know which the ground is, but I don’t want to damage anything either ---
**Author:** ![BillysRevenge](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@BillysRevenge](https://forums.speedlife.net/u/BillysRevenge)\ **Post date:** [December 8, 2008, 6:18pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/6 "2008-12-08T18:18:49Z")
ok so basically you don’t have a SPDIF on your mobo? ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 8, 2008, 6:49pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/7 "2008-12-08T18:49:05Z")
more or less it has coax and optical out, just cant find an aux output on the mobo anywhere ---
**Author:** ![Garick](https://avatars.discourse-cdn.com/v4/letter/g/8797f3/32.png) [@Garick](https://forums.speedlife.net/u/Garick)\ **Post date:** [December 8, 2008, 6:50pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/8 "2008-12-08T18:50:10Z")
I don’t know how to do it but your post is confusing… You are trying to find an internal spdif connection from your motherboard to your videocard so it can be combined onto the hdmi out from your video card? ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 8, 2008, 6:51pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/9 "2008-12-08T18:51:26Z")
yup edit: yeah, looking back that isn’t very clear ---
**Author:** ![BillysRevenge](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@BillysRevenge](https://forums.speedlife.net/u/BillysRevenge)\ **Post date:** [December 8, 2008, 7:00pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/10 "2008-12-08T19:00:32Z")
I’m not entirely sure though…can you go 1/8" out of the soundcard to RCA into the TV? ---
**Author:** ![Vile](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vile/32/7595_2.png) [@Vile](https://forums.speedlife.net/u/Vile)\ **Post date:** [December 8, 2008, 7:21pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/11 "2008-12-08T19:21:05Z")
you are going to end up in a pool of solder ---
**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\ **Post date:** [December 9, 2008, 1:25pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/12 "2008-12-09T13:25:36Z")
> [@BillysRevenge](#): > > I’m not entirely sure though…can you go 1/8" out of the soundcard to RCA into the TV? no :\ TV wont accept 2 audio in sources. If I switch to RCA or S-Video, it should work fine though, but would really prefer HDMI > you are going to end up in a pool of solder yeah, you’re probably right. Have you ever done this before? I have an ice cold beer with your name on it if you know how to get it working, neighbor 😃 ---
**Author:** ![Joe\_Omerta](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Joe\_Omerta](https://forums.speedlife.net/u/Joe_Omerta)\ **Post date:** [December 9, 2008, 1:57pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/13 "2008-12-09T13:57:00Z")
What motherboard? ---
**Author:** ![Joe\_Omerta](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Joe\_Omerta](https://forums.speedlife.net/u/Joe_Omerta)\ **Post date:** [December 9, 2008, 2:18pm UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/14 "2008-12-09T14:18:27Z")
Not too sure ur gonna get hd audio through it w/ that motherboard. but you can try wiring the gfx card to the front audio header between PCIE3 and PCI1. it’ll be analog line out which may or may not work. but worth a shot. otherwise, if your good with solder, try and splice into the optical out. ---
**Author:** ![Vile](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vile/32/7595_2.png) [@Vile](https://forums.speedlife.net/u/Vile)\ **Post date:** [December 10, 2008, 4:41am UTC](https://forums.speedlife.net/t/spdif-input-for-audio-over-hdmi/59388/15 "2008-12-10T04:41:56Z")
pretty sure my hd sound card supports my gtx260oc… havnt looked yet. but u’ll probably just have to get a new sound card. if your onboard card sucks… your framerate takes a plunge in games