Front Pannel Audio Problem

Posted on 2006-06-10
Medium Priority
Last Modified: 2010-04-25

I have a quick question about a computer problem I am having.  I think I already have the answer, but I want to be sure before I go out and spend money to correct the problem.

I built a custom computer for myself.  It has an Abit motherboard, plenty of memory, a fast Athlon X2 for Socket 939, RAID 5 and a few other things.

One day, Sound quit working in the left speaker.  I tested the speakers with my laptop and they are fine.  I also tested with headphones and found no sound out of the left speaker.  I decided to rull out drivers, so I found an old hard disk with the OS and all the drivers already on it.  I booted that and the same problem occured.

I tried the front pannel audio and it worked fine from the front of the computer.  I am using an Antec SOHO File Server Case and an ABIT KN8-SLI Motherboard.

My next step in troubleshooting was to attempt to rull out whether it was the case or the motherboard giving me the problem.  To do this, I removed the Front Pannel Audio connector from the board to remove the case.  At this point, I got no audio.  I was confused and expected to still have audio from the right speker only from the back port of the motherboard.

I decided to just save myself the hastle and replace the motherboard because I figured that is what it most likely is, since I removed the case from the picture.

Well, the back ports worked then I notice there were 2 jumpers on the Audio Ports of the new motherboard.  When I connected my cases's FP Audio, the same problem occured.  When I removed the FP Audio connector no sound again.  This lead me to belive I most likely replaced my motherboard in vain :( (a half hour wasted)  I have a leftover  motherboard though.

Anyway, I put the 2 jumpers back on and the back ports work.  This means to me that the back ports and front ports are okay, but something is funkey with the case right?  With the front pannel audio connected, I should be able to get audio out the bakc unless something is plugged into the front right?


That really is my question.  If this is the case, which I think it is, I guess I need to replace my case.
Question by:Jbirk1
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LVL 92

Accepted Solution

nobus earned 2000 total points
ID: 16879942
the jumpers serve to connect the left and right sound outputs to the back panel; if you want to have both, you should use a case with a split cable connection.
you can measure each sound channel pin, from the mobo plug to the front; with an ohmmeter. for the mobo plug, you can use a needle pin in it, and on the front, i just put an old plug in the jack with wires, or put a needle through the isolation into the wire itself for measuring.
>It can be a broken wire, or a broken jack (maybe replaceable)
you can also spray it with contact spray, and fiddle with the jack in it.
But yes, it is a "case " problem

Author Comment

ID: 16881531
Okay, so if I replace the case, my problem should be resolved right?

LVL 92

Expert Comment

ID: 16883436
yes, except you'll have a split sound cable if you want to use the front and rear connectors together, like this

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Author Comment

ID: 16899938
I just want to use one or the other.  I will replace my case.  Thanks.

Author Comment

ID: 16925049
This is true.  They call it OEM XP.  I.e. Dell OEM XP cds will only work with any Dell Motherboard just about.

What this means is you simply need another XP install CD.  I .e. you need whitebox OEM meaning any OEM, the Retail Version, or the Volume Licence Agreement (VLA often called Corporate/Corp as a slang or connotation).

My preferred media is Volume Licnece, but you must purchase at the minimum of a 5 computer agreement to qualify.
LVL 92

Expert Comment

ID: 16925693
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