I got it working by connecting an akg p170 to a behringer ps400-UE (phantom power only), after that I connected it to a zoom g2.1nu, and from there I can connect it via usb to the computer. I did this because they gave the wrong cable, I was expecting a 3.5mm and they gave me a 6mm jack (to xlr). The thing is, the audio is really low, -30db according to audacity.
The videocard, I tried googling it but I can't find anything relevant (only it's an VIA HD audio), it's an onboard soundcard. What I found is it can record at 24-bit / 192 kHz. Perhaps this would have a preamp, since I've used a microphone with an analog output and it worked. That's what I was wondering. Using the zoom (guitar effects pedal) there's not a preamp for a mic input, they do it for a guitar input which is higher.
I really just want to make some experiments, practice my singing, and make simples songs, only voice and accoustic guitar. I want something well recorded and 'hearable' but not very much 'hi-fi' as in too much producing and too much perfecteness and effects, I'm looking for something raw.
EDIT: According to what I said, my questions are, does an onboard sound card have mic preamplification, and is it good enough for what I want.
Thanks for the answer!