front panel audio connector

S

Santasballz

Limp Gawd
Joined
Jan 10, 2005
Messages
366
Hi,

I'm trying to connect the front panel audio on my case to a new mobo.

Case instruction says:

1.connect "MIC-VCC" to "MIC POWER"
or "MICPWR" on your motherboard
2.connect "MIC-IN" to "MIC INPUT"
or "MIC2" on your motherboard.
3.connect "GND" to "GROUND"
or "AGND" on your motherboard.
4.connect "EAR L" to "AUD_FRONT_L"
and "EAR R" to "AUD_FRONT_R".
5.connect "LINE L" to "AUD_RET_L"
and "LINE R" to "AUD_RET_R".

However, some of the items don't match at all...mobo instruction gives the following mapping:

MIC2_L `````` AGND
MIC2_R ``````` NC
Line out_R ``````` NC
NC
Line out_L ```````NC



a) There isn't any mic power on my mobo???
b) I have a left and right for MIC2 on mobo...but only 1 connector from case?
c) mobo doesn't have EAR left and right?


Your help is much appreciated.
 
Last edited:
Generally, if you can get the front panel headers to fit properly on your motherboard, you won't gain any access to them on the case.

But we specifically need to know the case and motherboard that you're working with.
 
The problem is the mobo has an HD Audio connector and the case has an AC97 connector... Check the BIOS settings to see if you can put the front panel into AC97 mode. If not you have to buy an adapter.
 
Hi,

Indeed I can turn from HD to AC97 in the bios...and I did.

But now what do I do? Still don't know how to match the connectors, any suggestions?
 
http://www.intel.com/support/motherboards/desktop/sb/CS-015851.htm
1 MIC Front panel microphone input signal (biased when supporting stereo microphone)
2 AUD_GND Ground used by analog
3 MIC_BIAS Microphone power / additional MIC input for stereo microphone support
4 AUD_GND Ground used by analog audio circuits
5 FP_OUT_R Right channel audio signal to front panel (headphone drive capable)
6 FP_RETURN_R Right channel audio signal return from front panel (when headphones unplugged)
7 AUD_5V Filtered +5 V used by analog audio circuits
8 KEY No pin
9 FP_OUT_L Left channel audio signal to front panel (headphone drive capable)
10 FP_RETURN_L Left channel audio signal return from front panel (when headphones unplugged)
Click to expand...

(1) - MIC2_L ....... AGND --- (2)
(3) - MIC2_R ....... NC ----- (4)
(5) - L_out_R ...... NC ----- (6)
(7) - NC ........... no pin - (8)
(9) - L_out_L ...... NC ----- (10)

NC: no connection

1.connect "MIC-VCC" to "MIC POWER" or "MICPWR" on your motherboard -- This is pin3
2.connect "MIC-IN" to "MIC INPUT" or "MIC2" on your motherboard. -- This is pin1
3.connect "GND" to "GROUND" or "AGND" on your motherboard. -- This is pin2
4.connect "EAR L" to "AUD_FRONT_L" -- This is pin9 -- and "EAR R" to "AUD_FRONT_R". -- This is pin5
5.connect "LINE L" to "AUD_RET_L" -- This is pin10 -- and "LINE R" to "AUD_RET_R". -- This is pin6

Double check my mapping, since I didn't. :p
 
Thanks for your reply.

I'm wondering, does the instructions apply for AMD as well? because the mobo is meant for an AMD, but the instructions from from Intel.

Thanks.
 
AMD follows standards, as do most, if not all, companies. It just so happens that AC'97 is a standard developed by Intel, as is HD Audio (aka Azalia). The audio chip on that board is compliant with both standards, since you have the option for both. ;)
 
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