If you want to know how to fix e74 error on your Xbox 360, safely follow these instructions.
Before we start, please don’t follow any directions you find that suggest wrapping your console with a towel or heating it with a blow dryer. These solutions could harm your system.
The reason you’re getting the e74 error is because your console has a hardware malfunction which causes overheating. This is a problem that nearly 500,000 Xbox 360 owners will have to deal with. Luckily, it’s easy to fix.
How to fix e74 error? Follow these easy steps and you’ll be back to playing in no time:
The first thing you need to do is shut off your console and let it cool down for several hours.
Then, clear off a table so you don’t misplace any parts, and use a fine tip poker to remove the outer case, carefully remove the DVD drive and unplug the connection cable.
After the DVD drive is out, remove the fan and motherboard, along with the X clamp found beneath the heat sink. This will allow you to access the GPU and CPU.
Once you’ve can see the GPU and CPU, carefully clean them off and apply arctic silver compound on the GPU (get the arctic silver compound from a computer repair store near you for $1)
Let your console sit for 15 minutes, and then place 2 nylon washers on both sides of the heat sink screws.
After this, just put the system back together the same way you took it apart, plug it in and play.
Hope these instructions for how to fix e74 error have helped. If you need more details or step by step video instructions, check out this list of professional [url not allowed]. Good luck!