i just replaced the motherboard yesterday and it was working just fine along with ll the other components i left the machine running so that i could re-download some games and turned off the monitors. when i turned it back on there was no signal witch i thought was odd so i re-booted my PC when it booted it gave me Kernal security check failure, than gave me IRQL not less or equal. i also replaced my old SSD with a new one. I don't know what to do anymore..