My father in-laws old Gateway 500s was working fine when suddenly he went to turn it on and all he gets is black screen. I put his monitor on another PC and it is fine. I hear the fans turning but get no CMOS beep and no bios, just black screen. I put new Ram in but that was 2 years ago. I am going to switch the RAM and check it tomorrow but are there are any other ideas. It has onboard graphics, could that be the cause. The PC is 10 years old. I dont have a discrete GPU to try as I think it only AGP and am not about to get one to check my theory. Im open to ideas or troubleshooting tips. Yes I know it is a piece of garbage but it is really fine for him to go on the web. Thanks.