Re: m6-1045dx

Hi,

Page #17 of the second manual on the following link

  http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&lc=en&product=5273906

says

Produces sound when connected to optional powered stereo speakers, headphones, earbuds, a headset, or television audio. Also connects an optional headset microphone.

It does not support optional microphone only devices. Therefore you can have two options:

(a) Use a headset with build in microphone such as:

  http://www.ebay.com.au/itm/Sades-SA708-Stereo-Pro-Gaming-Headset-Earphone-PC-Notebook-Headphone-With-Mic-/301107452113?pt=AU_Computers_Headphones_Microphones&hash=item461b6718d1

(b) Use USB microphone

   http://www.ebay.com.au/itm/Behringer-C1U-USB-Condenser-Microphone-Free-Shipping-/271373945255

Regards.