This is my last problem till I'm totally satisfied with my little system.

I get a high pitched whine in my speakers. If I tap the wires to the mic I also get crackles and loud buzzes. I'm using audio sockets soldered to wires since I built my own case so have no proper front panel.

I think the mic has one channel and a ground. Yet the mobo manual says:

Pin Signal
1---MICIN1_L
2---AGND
3---MICIN1_R
4---+5V
5---LINEOUT_R
6---LINEIN_R
7---LINEOUT_L
8---LINEIN_L
9---HPOUT_R
10--HPOUT_L
11--SENSE_A
12--SENSE_B
13--CEN_OUT
14--LFE_OUT
15--SSROUT_R
16--SSROUT_L
17--SPDIF_IN
18--GND

1 & 2 are MIC IN L & R. Can there be a stereo mic or lines for 2 mics? I have pins 1 & 3 wired to my mic socket. I have pins 2, 5, and 7 wired to the speaker socket. wiggling any of those wires will change the whine. Touching the connector nubs sticking out of the mic socket makes a loud buzz. I can hear the mouse move. I think I must have the wrong pins, but no soldering iron on hand to experiment.

I had pin 2 wired to the mic & speaker, but took it off the mic hoping the problem was that simple, that they shouldn't share ground.

Thanks for any help!
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VIA Epia PX mobo (VIA C7 1Ghz CPU), 1gig DDR2 667, 4gig ATA SSD, Xubuntu 8.04