So your front panel audio ports are not working. do the following
during boot press delete key to enter BIOS
Goto advanced>southbridge chipset configuration
Goto front panel select
If it is set to HD Audio, change it to AC97. Now your front panel should work & you can plug your mic there. This instruction is available in the blue user manual of your motherboard (Page 2-24 if you have the same book as me)
---------- Post added at 11:45 AM ---------- Previous post was at 11:44 AM ----------
tell me if it worked or not. And in case it is set to AC97 by default & it isn't working, try changing it to HD Audio