Sign in with
Sign up | Sign in
Your question

Front panel audio connections to mtherboard and case Hd audio or AC97

Last response: in Motherboards
Share
July 26, 2009 6:15:58 PM

HELP, panic, could someone research for me! DO NOT want to blowup moterboard by hooking up wrong or wrong connector! I've tried researching but still don't know if can just plug in and which one.

Do not have a clue on hooking up front panel audio header, case comes with two 10 pin connestors.
(one HD audio and one AC 97, these connectors are all one piece can't seperate wires individualy.)

I have a gigabyte GA-MA790X-UD4P and RAIDMAX AZTEC ATX-619WB Computer Case.

Building for my son, my first computer build.

He will just be using headphones on front audio connector (maybe microphone later).

a b V Motherboard
July 26, 2009 6:35:16 PM

Use your motherboard manual. It will label where each port is. Your motherboard probably has a connection for both types of audio. The two different cables should be labeled with a little flag. Also, your not going to blow up your motherboard.
m
0
l
a c 156 V Motherboard
July 26, 2009 6:39:40 PM

Oh, no. Not this question again.

At the risk of sounding rude, RTFM.

Read the freakin' manual.

(As I leaf through my GA-EP45-UD3P manual)

A section in the front of manual lists specifications. A section later talks about internal connections. Those say the motherboard supports HD audio by default. A third section in back describes how to change it to AC-97.

Your case included both connectors so it could be compatible with both old and new motherboards, nearly all of which support HDA.
m
0
l
Related resources
a c 177 V Motherboard
July 26, 2009 6:51:47 PM

Use the HD connector from the case; it is the default in the BIOS, supports features not on AC97...
There is only one connector on the MOBO:



DO NOT cut the unused connector off the case's cable; on most cases, the HD ID jumper (-ACZ_DET) is 'made' through a connection on the AC97 connector; if you want to get rid of it, takes modification...
m
0
l
July 26, 2009 8:14:41 PM

bilbat said:
Use the HD connector from the case; it is the default in the BIOS, supports features not on AC97...
There is only one connector on the MOBO:

http://img196.imageshack.us/img196/2298/0032xkw.jpg

DO NOT cut the unused connector off the case's cable; on most cases, the HD ID jumper (-ACZ_DET) is 'made' through a connection on the AC97 connector; if you want to get rid of it, takes modification...



Thanks for the HELP and guidance, first time doing something a little slow sometimes, and paranoid when seeing jumpers on connector and seeing labeled (+5V on case manual and -acz_det on motherboard manual, etc.) different.

I have read the motherboard manual, my confusion is case manual had different labels for motherboard pins and showed case connections as individual wires and my actual case has all wires in a single connector. So I have no idea what wires are connected to, only 1 single label on connector HD Audio or AC 97, where as case manual has individualy labeled and landed on individual pins. Just hope they have it wired right to some standard way of doing things.

I just need to ignore case manual as it is actually a GENERAL diagram not specific to my moterboard.


???Question if I plug in and try to use ac97 or the default HD Audio is it possible to burn up moterboard.???
m
0
l
a c 177 V Motherboard
July 26, 2009 8:30:37 PM

No risk in plugging it in; notice that, on the MOBO diagram, pin eight is 'missing' from the header layout; if your case manufacturer 'did their job', there should be a corresponding 'blocked hole' in your plugs - you should not be able to plug them in incorrectly. The plugs themselves 'tell' the motherboard which one they are - the difference being that if you use the AC, you have to enable it in the BIOS. Again, I recommend the HD plug, specifically, because it supports 'muting' when headphones are plugged in...
m
0
l
July 26, 2009 8:50:25 PM

Thanks again from newbie, doesn't sound like much of a problem then.

I had read somewhere you could fry motherboard if wires on wrong pins (maybe for the individual wire type?) so didn't have time to RMA motherboard so being super cautious.

I will post back if problem, but seems simple for now.
m
0
l
July 26, 2009 9:06:05 PM

wlmz said:
Thanks again from newbie, doesn't sound like much of a problem then.

I had read somewhere you could fry motherboard if wires on wrong pins (maybe for the individual wire type?) so didn't have time to RMA motherboard so being super cautious.



The UD3P/4P/5P is designed to be relatively n00b friendly so it has a pretty high tolerance for wiring errors. If something is catastrophically wrong it'll kill power to most of the boards components.
m
0
l
a c 156 V Motherboard
July 27, 2009 6:29:08 PM

Use the default HDA. You have nothing to lose. Make sure you use the chipset drivers from the included CD.

The results are kind of cool. You plug a headset into the jack and the board detects it. You get a graphical popup that asks you what you just plugged in. And you just click on the headset.

And wlmz,
I apologize. I am getting old and crochety (my wife would say "getting?" :) ). Sometimes, I forget that I built my first computer a long time ago, back when "build" meant taking soldering iron in hand.
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
m
0
l
a c 177 V Motherboard
July 27, 2009 8:52:18 PM

:lol:  (too bad they don't have a crochety old fart smiley) KayPro Z80 pushed from 2.5 to 3 with megabyte of ramdisk (mind is fortunately blank about what that cost me), Seagate ST-225 20 M HD (three partitions!), hand soldered two-level FDD decoder chips to get 'high-density' (think it was 784K or some such) 5 1/4s, running ZCPR-3; think it was '82 or '83...
m
0
l
a c 156 V Motherboard
July 28, 2009 5:44:05 PM

Hey, my wife swears they made a movie about me - "Grumpy, Old Men". I tell her that I don't think I'm that old.

Seriously. 82 or 83 sounds about right. I had a Kaypro II. That was a Z80A running at 4 MHz. Bumped that to 5 MHz. Had to replace the video controller. Wasn't ZCPR-3 great?

Back to the OP. wlmz, how are you doing with your build?
m
0
l
a c 177 V Motherboard
July 28, 2009 6:04:03 PM

One more stroll down memory lane: remember how great it was to have actual schematics for your actual motherboard? I'd be willing to kill someone for a set now... (Or BIOS source code, for that matter...)
m
0
l
a c 156 V Motherboard
July 29, 2009 1:27:17 PM

bilbat, I'm moving my reply to private messages.

Let's give the original poster his thread back. :) 
m
0
l
January 27, 2010 11:00:55 PM

I've just learned about the wonderful world of ac 97 vs hd front panel audio connectors. What brought me here was building a new machine with an azza box and a biostar motherboard and the fact that the front panel doesn't seem to work.

After downloading the biostar manual I see it only supports HD. The Azza box must be ac 97 although it doesn't match exactly what I would expect from reading the ac 97 spec.

My question is 1, can you convert an ac 97 dongle to hd and how, and 2. where would you buy a front panel dongle to replace the existing one otherwise.
My users (wife and children) are considering giving me a bad review if I don't get this working.
m
0
l
a c 177 V Motherboard
January 27, 2010 11:10:16 PM

This is a Gigabyte forum :p  , but if you'll post both motherboard and Azza model #s, I'll give it a try...
m
0
l
January 31, 2010 6:14:38 PM

bilbat said:
This is a Gigabyte forum :p  , but if you'll post both motherboard and Azza model #s, I'll give it a try...


Biostar g31-m7- TE
Azza Orion

Here's what the mb manual says about the header:

JAUDIOF1: Front Panel Audio Header
This header allows user to connect the front audio output cable with the PC front
panel. This header allows only HD audio front panel connector; AC’97 connector
is not acceptable.

The azza website doesn't say what the dongle is set to. It doesn't appear to be setup for HD or AC 97. It has (I'm working from memory here) several jumpers from one pin to another in the plug. I saw somewhere that some of these are suppose to use the back panels wiring thus disabling the back panel audio if you hook them up. Maybe that's what it is.
m
0
l
February 5, 2010 1:28:59 AM

gillbates said:
Biostar g31-m7- TE
Azza Orion

Here's what the mb manual says about the header:

JAUDIOF1: Front Panel Audio Header
This header allows user to connect the front audio output cable with the PC front
panel. This header allows only HD audio front panel connector; AC’97 connector
is not acceptable.

The azza website doesn't say what the dongle is set to. It doesn't appear to be setup for HD or AC 97. It has (I'm working from memory here) several jumpers from one pin to another in the plug. I saw somewhere that some of these are suppose to use the back panels wiring thus disabling the back panel audio if you hook them up. Maybe that's what it is.



Update:
First I apologize for posting on the gigabyte board. It's my first time posting on this board and my question isn't MB specific but does match to this subject.

That said I think my azza box is ac97. I looked at the diagram on this thread and realized that the pins labeled NC matched to the jumped pins on my boxes plug.

So pins 5 and 9 match the line out in both specs. Pins 1-3 seem to do similar things also. So I'm wondering if pulling the jumpers off of 4, 6, 7, and 10 would make it start working with a HD header?
m
0
l
February 5, 2010 1:44:08 AM

Your MOBO would have to support HD Audio. However, it doesn't hurt to try, as the pins match up identically anyway.
m
0
l
a c 177 V Motherboard
February 5, 2010 2:17:15 AM

Do you have any documentation that came with the case? I d/l'd the BioStar manual, which appears to only tolerate HD connections, but at the Azza web-site, I'm stymied - there is a tab labeled 'MANUAL' on the product page, but it appears to be attached to a 'null script' - doesn't do anything that I can detect! (Looks to be a nice case, though :??:  ) If you have a manual page you could scan, I might know more - two of the pins you mentioned are, I believe, 'low-true' detects - six, I think, detects a headphone plug inserted into the FP jack (which accounts for HD's ability to 'mute' the rear panel speakers when headphones are plugged into the front...), and seven is the overall 'HD detect'; six and ten should be grounds in HDs - it would help if I knew where the jumpers 'went' or more about the actual physical arrangement. Are they (the jumpers) on a small cicuit board on the front panel or what? 'Nother crucial question - do you have a VOM (multimeter, voltmeter, what have you...), or can you get access to one? If so, we might be able to do a little testing and figure out what's up, in lieu of actual documentation for the case...
m
0
l
February 5, 2010 12:56:38 PM

bilbat said:
Do you have any documentation that came with the case? I d/l'd the BioStar manual, which appears to only tolerate HD connections, but at the Azza web-site, I'm stymied - there is a tab labeled 'MANUAL' on the product page, but it appears to be attached to a 'null script' - doesn't do anything that I can detect! (Looks to be a nice case, though :??:  ) If you have a manual page you could scan, I might know more - two of the pins you mentioned are, I believe, 'low-true' detects - six, I think, detects a headphone plug inserted into the FP jack (which accounts for HD's ability to 'mute' the rear panel speakers when headphones are plugged into the front...), and seven is the overall 'HD detect'; six and ten should be grounds in HDs - it would help if I knew where the jumpers 'went' or more about the actual physical arrangement. Are they (the jumpers) on a small cicuit board on the front panel or what? 'Nother crucial question - do you have a VOM (multimeter, voltmeter, what have you...), or can you get access to one? If so, we might be able to do a little testing and figure out what's up, in lieu of actual documentation for the case...



The case came with no doc and I found the same thing at their website.

I believe 7 is jumpered to 6 and 10 is jumpered to 4.

I also believe that I saw that there is a way to get this to work but it disables the feature that disables the back panels plug when you plug in headphones.

All of the are wires that go into the female plug connected to the dongle on the case. This is the female plug that would be plugged into the header on the MB.

I do have multimeter.

Thanks.
m
0
l
Anonymous
a b V Motherboard
May 12, 2010 7:18:41 PM

Hey guys,
i have a http://www.gigabyte.com.tw/Products/Motherboard/Product... = GA-M720-US3 (rev. 1.0) and i ve recently changed the chassis... and i forgot to write down the previous front panel audio connectors scheme/layout.
So could you please help out. the cables are : mic-in, gnd, mic-bias, speaker l, speaker r, return l, return r.
I am using win7 x64 as OS.
if you need anything else... please let me know
thanks (in advance :p )
m
0
l
a c 177 V Motherboard
May 12, 2010 10:27:46 PM

Be with 'ya in a minute here - d/ling the manual - it's one of the rare ones I don't already have, and the Apple IIe (with a whole 32K of RAM!) that GB uses for their web-server is 'cranky' today... :sleep: 
m
0
l
a c 177 V Motherboard
May 13, 2010 12:57:05 AM

Try this:
m
0
l
Anonymous
a b V Motherboard
May 13, 2010 3:57:13 AM


thank you
but using this layout/scheme... gets me only the left speaker of the headphones to work
i have also tryed it with the return r @ 6 and return l @ 10 ... same problem [only left headphone speaker]

any other ideeas ?

ps. jack detection is disabled [otherwise, the front panel doesn t work at all] : http://i44.tinypic.com/e0pyma.jpg
m
0
l
a c 177 V Motherboard
May 13, 2010 1:10:04 PM

Do you have the make and model of the case handy?
m
0
l
Anonymous
a b V Motherboard
May 14, 2010 5:23:48 PM

well
i made up my mind
i m selling the case ... and getting an Antec or Thermaltake...
it s no use to get this much trouble from an no-name brand...

my solution is : a device that separates the audio signal from the back of the case : http://www.niharsworld.com/wp-content/uploads/2008/05/a... ... and an extension cable for my headphones... http://ecx.images-amazon.com/images/I/210H03H8Z3L._SL50...
this way i can sit on the couch and watch movies on my 22" screen ... without disturbing anyone :p 

thanks for your help
m
0
l
October 7, 2011 10:54:45 AM

The difference between AC'97 and Intel HD front panel connections is mainly in that: AC'97 uses 'normally closed' switch for return/sense whereas Intel HD uses 'normally open' switch. So its in the jack and not the wiring. You will have to use different jacks to get auto sense working properly.
m
0
l
!