I just built a rid and the only thing I'm not sure how to connect is the front audio panel that came with my CoolerMaster centurion 534 case. The connector breaks all the pins out seperatly so that I can connect them however is needed but I'm not sure how to match up the lingo used by the two diff companies.
Any help would be appreciated, here's the lists supplied to me.
Case (Centurion 534)
Color Label
Yellow PORT1L
Red PORT1R
Brown SENSE1_RETURN
Black AUD GND
White PRESENCE#
Orange SENSE_SEND
Gray SENSE2_return
Green PORT2R Why are green and blue the same?
Blue PORT2R
PoorComa wrote:
> I just built a rid and the only thing I'm not sure how to connect is the
> front audio panel that came with my CoolerMaster centurion 534 case. The
> connector breaks all the pins out seperatly so that I can connect them
> however is needed but I'm not sure how to match up the lingo used by the
> two diff companies.
>
> Any help would be appreciated, here's the lists supplied to me.
>
> Motherboard (Gigabyte GA-MA7770-DS3)
> Pin Label
> 01 MIC2_L
> 02 GND
> 03 MIC2_R
> 04 -ACZ_DET
> 05 LINE2_R
> 06 GND
> 07 FAUDIO_JD
> 08 No Pin
> 09 LINE2_L
> 10 GND
>
> Case (Centurion 534)
> Color Label
> Yellow PORT1L
> Red PORT1R
> Brown SENSE1_RETURN
> Black AUD GND
> White PRESENCE#
> Orange SENSE_SEND
> Gray SENSE2_return
> Green PORT2R Why are green and blue the same?
> Blue PORT2R
>
> Thanks in advance!
>
> -Kevin
For reference, try PDF page 24 of this document. Formfactors.org is an Intel
site, which holds standards (defacto and otherwise) for computers.
There aren't too many computer cases, that offer actual HDaudio wiring.
Most will have AC'97 wiring inside. But your case appears to have
proper HDaudio wiring (based on naming convention). Which means
PRESENCE and the three SENSE lines can be connected.
The Gigabyte wiring is not standard, because pin 6 and pin 10 aren't labeled
as SENSE pins. They may be grounded via a resistor on the motherboard, but
that doesn't justify naming them GND in the manual. Now we cannot tell whether
jack sense works or not.
The two PORT2R is a typo. One will be PORT2R and the other PORT2L.
There is a 50:50 chance of getting the connection right the first
time. Plug headphones into the Centurion headphone jack, and then
do a left and right audio test using some audio software. If the
channels are swapped (you hear right audio in left headphone), then swap
your PORT2R wires with one another.
The SENSE part of things, is shown on PDF page 172 Figure 84 here. The
resistor on pin 6 and pin 10 to GND, works in conjunction with two other resistors
destined for motherboard mounted audio connectors (audio stacks). Figure 84
may not be exactly right, in the sense that the switches and the resistors
may be transposed (switch array positioned above resistors), without
affecting how Figure 84 works. But that transposition may make it easier
to understand how the case wiring and switches inside the case microphone
and headphone jack, are doing their thing.
As some combination of the switches are opened or closed, the DC voltage
at the CODEC_Jack_Sense_Pin (A.K.A SENSE_SEND) is made to vary. That gives
one of sixteen DC voltages.
Inside the audio CODEC, an ADC converts the DC voltage back into a four
bit code. The four bit code then represents a digital copy of the switch
state of the four switches. And that tells the software, when stuff is plugged
into the audio jacks. (When the SENSE network is not working, there appears
to be a "Plan B", which is not documented, so they still have some way
of detecting plugs. I'm not exactly sure how that works, but it could be
impedance sensing. The standard makes reference to Optional Impedance
Sensing.)
Matching Pins...HDAudoFront to Motherboard... 
Linear Mode
