I bought 3 Gateway NE56R09h laptops in April of 2013. One has been in for repairs twice, thankfully covered under warranty. Unfortunately one month after the warranty ended, one of the other laptops refuse to power on. Nothing appears on screen. I can hear a whirring noise for about 2-3 seconds and then nothing. I have tried it without the battery, & just being plugged into the wall. I have tried it with only the battery. I have re-seated the hard drive & the RAM. I have tried another hard drive. I have tried the "hold power button" trick and nothing works. My next step is to use a compressor to try & blow any dust out & see if it helps, but I am thinking it is probably the motherboard. Any info out there or advice? I would really appreciate it. I am not very tech savvy, but I'm learning as I go along. I will NEVER buy another Gateway/Acer product that's for sure.