Problems with MOBO and VID CARD

I have an A-BIT AN8 SLi motherboard and a e-geforce 6600 LE video card. So I have a brand new custom computer and first I tried installing my graphics card into the the 1st PCI express slot, the computer turned on, but no monitor display. So, I switched my video card into the 2nd PCI express slot, computer turns on, but I'm having major problems on it restarting randomly (Eg. IRQ_NOT_LESS_OR_EQUAL) (This is all done in normal mode, not SLi). I figure the reason it keeps restarting in the 2nd slot is because it does not belong there. I read that the 2nd PCI express slot acts as a PCI X1 when the motherboard is in normal mode, which would result in an insuffcient supply of power for the videocard. SO, I'm thinking I NEED my videocard in the 1st slot in order to supply enough power and eliminate the constant restarts. The problem is the monitor won't turn on when I do so. Any help?