The Infamous E74

This is what summer is really meant for: video games. You can feel all your troubles melt away as you and your buds trash talk over who is winning in the Halo deathmatch. Ah yes, this is truly the purpose of su–the TV goes blank. Then some type of message comes onto the screen. “What is this?!” you yell at your friends, but they are innocent. This is not a trick, your Xbox has E74.

You aren’t the only one; many, many people have gone through this same thing–in fact, it’s among the the most commonly reported Xbox 360 problems. If you really have E74, there should be one blinking red light on the ring of light, and lines of text going across your TV screen. It should also say “E74″ in pretty big letters right in the center!

The English line reads, “E74 System Error. Contact Xbox Customer Support.” Okay, fine, you may think to yourself, but what’s that? Whats a man got to do to play a video game around here?! You can follow the TV’s advice and call up Microsoft, but all they will tell you is that your console has some kind of “general hardware failure.” As if you didn’t already know that! This means that somewhere inside your 360, something broke somehow.

In some cases, this problem actually doesn’t originate from something inside the Xbox going bad. It could be that the AV cable, or some other cord, just isn’t plugged in, or not plugged in well enough. Obviously the smart thing to do would be check this; yank out all the cords and put them all back in. Turn on your Xbox again, and see if anything changed.

Also, see if you can get your hands on another AV cable. It could be that the cable itself is broken, and it’s causing your 360 to think the problem is much worse than it really needs to be. Try asking for a buddy’s, and see whether or not your Xbox works with that one. This isn’t terribly common, but worth checking. If you aren’t able to borrow one, however, I wouldn’t go out and buy one.

If your E74 still hasn’t gone away, there’s one more thing to check–separable components. Once again, turn off your console. Then, keeping the cords in, take off the hard drive, and the controllers, etc. Without them, turn on the console. If that annoying red light is still flashing, the E74 error originated inside the Xbox 360.

Most E74 errors are due to the HANA chip. It may not be broken, in fact chances are, its connection to the motherboard is what’s broken. This can happen if your Xbox overheats; over time, hairline fractures form and prevent it from functioning properly with the rest of your console. Maybe 10% of the time, the HANA chip is innocent and the problem lies with the GPU. Even then though, excessive heat causes its connection to the motherboard to be compromised, and results in an E74 error showing up on your TV.