Mobo power i'm having my first attempt at building comp. got asrock p4i65g mobo, fitted it to case. case power worked fine with old mobo, got diagram for connecting on/off switch but nothing happens when i press button! i'm starting to panic a bit as i dont want to mobo by connecting it wrong!! any help would be massively appreciated!

You have the diagram for the MB already as you bought the board correct? The most common problem is the board installed incorrectly and shorting to the case. Take the MB out and attach the wires outside of the case ,then see if it starts. Using only one strip of ram and no CD or DVD players or drives attached at first. You have the diagram for the MB already as you bought the board correct? The most common problem is the board installed incorrectly and shorting to the case. Take the MB out and attach the wires outside of the case ,then see if it starts. Using only one strip of ram and no CD or DVD players or drives attached at first.

When you plugged in your on/off switch did you look at the pins you were connecting to? Were those pins marked PWR? The switch is probably just on the wrong pins, no big deal.

When you plugged in your on/off switch did you look at the pins you were connecting to? Were those pins marked PWR? The switch is probably just on the wrong pins, no big deal.