I have an ASUS M2N-Sli Deluxe motherboard, brand new. At first the system will boot up as expected, and get to the screen which asks to either enter BIOS or F1 to Continue. This is a new build machine, so has no OS installed yet. Continuing will cause it to move to a blank screen, occasionally with a _ flashing at the top left, simply becasue non of its boot devices have anything on / in. Entering the BIOS i can change settings as usual, all settings in my manual are available for change and so on, exiting and saving will produce the normal results, eventually leading to the screen as per pressing F1. Now turning the computer off, then back on again, it will boot for 2 seconds or so, not very long, and then power itself off. to get it to turn back on I must reset the CMOS, and this is consistent, whether I change any BIOS settings (even the system time!) or not, or if I avoid the menu completely. I'm really really stumped for ideas on this, is it not supporting my CPU? If I went ahead and installed an OS would it work? Anybody that can offer an assistance it will be greatly appreciated.