Intel d975xbx2 front audio panel help!

I have an Intel D975XBX2 motherboard and my case has front audio panel wires.
The front panel audio wires inside my case are as follows:

EAR_1_L
EAR_2_L
EAR_1_R
EAR_2_R
GND
MIC(WHERE DOES THIS ONE GO????

I am puzzled about were the microphone wire would plug into..... I have it setup how I should have it EXCEPT the MIC wire isn't plugged in because I have no idea where it goes.

Below is a diagram of how it should be setup, following a link!

For AC97 Front Panel Audio



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)

http://www.intel.com/support/mothe [...] 015851.htm

I have my EAR_1_L plugged into port_1_L
I have my EAR_2_L plugged into port_2_L
I have my EAR_1_R plugged into port_1_R
I have my EAR_2_R plugged into port_2_R
GND is plugged into GND
So where does my mic go????