E74 is an Xbox error brought about by the malfunctioning of a video scaler chip inside. This chip is easily damaged when the system overheats. This chip is the one responsible for the clear graphics you see on your screen while you are playing. When this is damaged, you will notice that the screen display is distorted and your game suddenly hangs. Any attempt to press control buttons will not work.
Electronic components are held in place by solders and thermal glue. However, sometimes, because of heat generated by the system, solders and glues melt and harden alternately. This causes components to move, and the friction it creates produces heat. Knowing this, the Xbox 360 E74 fix is quite simple. Basically, your goal is to prevent overheating, or if an error has occurred, to fix an overheating problem.
To prevent overheating, you should make sure that the room where you intend to play is well ventilated. Good air circulation distributes heat in the entire room so that Xbox 360 remains cool. If air is not circulating, it is easy for heat to be trapped in the console. You could also buy a cooling pad and place this under the console. To further prevent overheating, avoid playing for longer periods than an Xbox 360 could handle. A few hours is enough and then turn it off for a while to give it time to rest.
If 3 lights flash red in the console, it is warning the user of an E74 error. This is when your knowledge in Xbox 360 E74 fix methods will come in handy. The tools you will need are simple. Get a screwdriver set and a sturdy bench. Make sure you have a bright lamp or any kind of good lighting. These are the basics and you are ready to open the hardware.
Carefully read the instructions for repair. You may get this for free in the internet and download it for printing. If you do not have internet connection, manual repair guides are available for sale at cheap prices in computer stores. It may even come with a video CD. Sit down and follow easy steps to an Xbox 360 E74 fix.