Chosen Solution
I recently bought new ram for my pc I made sure that it was the same type and speed of my old one so my motherboard could handle it. So I plugged the new one in and didn’t take the old one out to see if they could work together but they didn’t so I took the old one out and left the new one in,( didn’t unplug the other things in the ports of the PC) switched my pc back on and the PC turned on but my monitor, keyboard and mouse didn’t, I tried moving it around into different ram slots but still nothing. I decided to put the old one back in and Google some ways on how to fix it, but after doing that the same issue was happening the pc itself would come on with all the fans and gpu coming on but the monitor screen wasn’t coming on and the keyboard and mouse wasn’t lighting up
Hi Iv had this happens to me on older iMacs and I find it usually tends to be dust and debris in your ram slots What I do is get some form of pressured air (hand blower or pump,I don’t use canned air as it can have moisture) If that doesn’t work I will try and isolate the issue to a specific ram stick, so I will put ram sticks in one at a time until the issue reoccurs I would also check the port that your display is plugged into Hopefully this helps Any questions please ask Thanks:-)
