Installing a microphone

[The JoJo]

So I was at a friends house tonight, trying to install a microphone in her computer (which is a normal Duron 1300 on a MSI K7T Turbo ver3, 1gig, integrated audio). WinXP as OS.
There was one microphone available and one creative headphone available.
So I plug the microphone in, check that it's not muted, put the volume to full and...nothign. Not a beep.
So I plug in the headphone and same thing.

I did use the microphone jack at the back, both recording and playback volume was ok, no muting. Tried testing with messangers audio test but no luck. Not a vibration...
Updated to latest audio driver from MSI. No help.

Any ideas what I've missed?

 

[The JoJo]

Normal sound output is working, if that wasn't clear. It's just the microphone...

In the BIOS there are these options for Onboard legacy audio:
SB
SB I/O base address
SB IRQ
SB DMA
MPU-401
MPU-401 I/P address
game port...

I'll phone here and check these out.

 

[Mercutio]

Did you check the properties for recording volume and recording source?

 

[blakerwry]

my bet is on the recording source. Easy one to miss

 

[The JoJo]

The microphone was the "selected" source under recording volume properties, if that's what you mean?

 

[The JoJo]

Fixed it.

Kind of, disabled on-board audio, installed old creative soundcard.

 

[Mercutio]

If it was onboard sound...
A lot of hardware defaults to using those Mic and Line-In connectors for surronud and center/LFE channels for surround audio. Usually there's a program to change the jack function someplace.

 

[The JoJo]

I thought about thas, but as this was a VIA KT133A motherboard, it didn't have anything that sophisticated (me thinks).