Howdy! I just started building my first self-made PC! But, I noticed that each little pin on the motherboard does something different, and on some of the multi-hole plugs, it's not specified which way the plug should be oriented so the right pins align with the right holes. Also, in my motherboard manual, for the front panel usb connections, it says pin 10 is USBOC and pin 8 is GND, but the plug that would go in pin 8 reads GND1 and the one that would go in pin 10 reads GND. I just plugged each of the usb plugs in its own second row of pins where the USBOC pin is absent. Also, is it OK if not quite all of the screws on the mobo are screwed in? And is it normal that the Power LED plug be totally absent? Mobo: MSI P4N SLI Case: Thermaltake XaserV WinGo V7000D Everything else: Hasn't arrived yet.