Hi everyone this is my first post so be gentle! have a problem i have just built a pc and on start up i get one long bleep which lasts about 1.5 seconds and dont get any video output to enter bios have removed m/b and powered up with just cpu and memory installed,if i remove memory i dont get any warning beeps.hardware is intel i5 760 2.8ghz / ocz gold 4gb 2x2gb ddr3 1333mhz dual, have put in slots 1 and3.any advice would be much appreciated. cheers