Here is my dilemma, I have this pc E machines T5234 which I recently changed the motherboard with a near compatible one, which I bought online. I have the wiring and connector pins in the correct areas. The fan comes on, the led light comes on,power switch turns on pc and turns it off when when you hold it for 10 secs +. So am assuming that all is good so far. My problem is I can't see anything on the monitor, it shows absolutely nothing. I plugged it into my laptop as a another screen and it comes on, shows what is displayed on the laptop, so am assuming the monitor is good ,so why doesn't it show anything when I plug it into the desktop. I also tried the same thing with the old motherboard and same thing monitor shows nothing, could it be the monitor, and why would it work in the laptop and not the desktop.