as the title says i cannot see anything on the screen (monitor keeps going to sleep from lack of detection). i just put the pc together its a skylake i3 in a gigabyte h110m-s2h-gsm with a corsair 430w psu, a seagate 1tb hdd and an old optical drive i had laying around. fans spin up and the motherboard lights up orange on some parts, but when i plugged my other computers case speaker in i heard 5 long beeps until it turned off and tried to boot again. Can anyone help me? i thought maybe i need to flash the bios but how can i do that without seeing it? much thanks in advance! i should mention im using onbaord graphics, no video card in this build