Ok let's try this again, and I hope it means something to you (it means nothing to me :P)

Processor: Intel Core quad CPU Q6600
RAM: 3gb (is it bad that it says available physical memory as less than 1gb?)
Motherboard: ??
Graphics card: ATI radeon HD 5700 series
Case: Dell XPS case (that's a guess)
Monitor: Some dell one (it says generic pnp monitor???)
Mouse: A question I know :D Sentinel advance CM storm
Keyboard: A standard dell one....
Is there a way of finding out you're motherboard without opening the case?