Hi everyone. Turned on my Mac this morning but didn't make it to the Apple logo (power light stays on). I tried to boot into Safe / Recovery but no luck. I tried holding down the power button for 10 seconds but it shuts down after about 6 seconds of pressing the button (I turned the chime off a while ago so can't comment on that). Then I left it on for a while and looked on the house network to see if it was present but nothing. Any help is greatly appreciated!