Posted 16 February 2013 - 04:21 PM
I'm looking up to upgrade an existing setup I have and I need the following 2 things: (1) an Intel LGA1155 ATX motherboard (preferrably Asus or GB) that will support 7.1 audio via HDMI and (2) as a backup solution, a video card that will pass HDMI audio as well. The video card does not need to be a $300 gaming card. I just want something that will pass FullHD resolution to a screen and preferably fanless if possible. As for the board's sound, I would like something in the Realtek 8xx realm for compatibility.
Does anyone have any good recommendations?
Posted 18 February 2013 - 06:59 AM
Same goes for the video card. Don't forget that when you are dealing with HDMI out, you are using the sound chip on the GPU, not your motherboard or even a nice discrete sound processor. Only time you'll use either of those is if you use the sound jacks on the MB or Sound Card.
If all you are looking for is multi-channel LPCM output, including Dolby TrueHD and DTS Master Audio for BluRay protected audio playback, then any motherboard or mid grade video card made in the last 18 months will be just fine. Just make sure you Receiver can handle 7.1 - there are still a lot of them being sold that are only 5.1 - which isn't bad by any means. BUT then the problem becomes whether or not that receiver system supports audio passthrough. Older (pre HDMI 1.3) systems may only pass the video.
So - if you want 7.1 - just make sure you buy something new(ish) on all sides and you should be good to go.
Hope this helps some on your quest!
Posted 19 February 2013 - 04:56 AM
My priority for this build is 7.1 audio. My receiver is only a few years old but supports the HDMI 1.3 spec. It supports TrueHD and MasterAudio so I should be fine. I'm trying to keep everything HDMI if possible.
I went ahead and bought a motherboard but I'm not sure what I'll do about the video. I might be able to get by with the HD4000 graphics for now. I will say though that I didn't know about HDMI audio from the video card until your post. If that's the case, I might just reuse my 9600GT if I can manage to get HDMI audio working off the of the motherboard. My fallback then would be the HD4000.
Does that sound like a good idea or are there certain cards I should investigate for the HDMI audio?
Posted 19 February 2013 - 11:29 PM
What this means is that your best bet is to use the Intel HD400 graphics. Remember, this graphics option is processor dependent, not motherboard dependent. Gotta make sure the CPU you are getting has the GPU built in.
I ran this way for a while, until I put my components into my G5 case. I tried using a left angle (270°) HDMI adapter because I don't want to cut my G5 case. Turns out that stupid $1.99 monoprice adapter was interfering with the HDCP signal and was wigging my system out. So I chose to buy an ATi 6770 GPU rather than cut my case. I bought this card for 70 bucks. Pretty good deal, and I bought it a few months later so I could spread some of the cost out.
I hope I explained that OK... feel free to ask for more clarification.
Posted 20 February 2013 - 12:23 AM
Posted 01 March 2013 - 07:11 PM
Thanks so much for your input. I should have specified earlier that the 9600GT does have a HDMI port on it. So I'm taking it that it will have HDMI audio pass-through. I was reading up on it on this the following link -- http://www.pcstats.c...?articleID=2384. It sounds like I'll need a SP/DIF jumper though to achieve this.
As a side note, I will be getting a HD4000 capable processor as a backup solution for the graphics.
Will your receiver accept an audio source that is separate from that DVI signal, and in turn pass it thru to your speakers or TV?
Yes, it currently does now. I have an optical out to the receiver and then video is DVI-to-HDMI from the 9600GT to the receiver. My understanding of the drawback is that the bandwidth for the optical link is only 6 channel (5.1) and i'm looking for 8 channel (7.1). If I can get pass-through working on the 9600GT then I may get somewhere.
Posted 01 March 2013 - 10:45 PM
The specs for that card straight from nVidia show only dual DVI links. Yes, technically HDMI and DVI-D are electrically compatible but the big difference here is the sound processing. Since DVI does not include sound in the signal, I am not sure that any version of that card will have a sound processor on it. The HDMI can carry audio, but it is only SPDIF audio... which along with DRM (which in this case the DRM is HDCP) is the limitation as to 2 channel LPCM or 5.1 DD/DTS not the passthrough + HDMI itself. The jumper that you mention, and after looking at your link, means that the sound will be coming from the onboard sound or a dedicated sound card that has an SPDIF 2 pin connector. You then run that jumper wire from the MB (or sound card) to the video card. Because this card is just passing the audio along and not processing it, that is where the Linear PCM comes into play.
As far as I can tell from what I understand of your components, you'll only get 7.1 audio from the HD4000 iGPU - never from your 9600GT. In fact, the GT wouldn't even be real 5.1 - it would be processed 5.1. Think of it as back in the days of Dolby ProLogic. It was a good way to fake surround without the dedicated channels. Similar concept here. Only two Linear PCM streams here so the signal has to be encoded.
SPDIF is limited in its capabilities. It sure is neat to have a fiber optic cable running from one thing to another, but you get a far better experience with an HDMI 1.3 or better source, cable, and receiver.
It all depends on what you really, really want. Is this potentially going to be a HTPC? then just stick with the iGPU. Do you want to do some mildly intensive graphic stuff on this rig? run some combo of your existing card and the onboard iGPU (gotta love Virtux). Want a one stop solution for more intensive graphics and 7.1 audio - buy a new GPU. I got mine for 70 bucks, its two generations old, and still blows away the HD4000.
Hope this helped some more - keep the questions coming if you need to!
Posted 03 March 2013 - 09:06 PM
Is this potentially going to be a HTPC?
Yes, it is. I'm most likely going to do what you recommended here and just use the new board + iGPU and then ditch the 9600GT. I'll work to get HDMI audio out from the main board.
Do you want to do some mildly intensive graphic stuff on this rig?
No, none whatsoever. I think the HD4000 should be sufficient. Sometime down the road I may upgrade the GPU.
Posted 04 March 2013 - 01:45 AM
Posted 04 March 2013 - 04:48 AM
Posted 06 March 2013 - 02:55 PM
Great board from what I hear! and I'm all in favor of reusing components to save some scratch - and a good call on the 3770s. If you don't plan on overclocking, no need for the K.
Seriously, the 5/6 Series Radeon is a dream if you get the right one! My Vapor-X 5770 has always been plug and play with every install - it's nice having a card to troubleshoot, as I can always know that a kernel panic is not 5770-related (and it never is)
Posted 16 March 2013 - 10:03 PM
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