Xbox 360 help

I keep getting the E 74 error for no reason. Everything is plug in and its not the hard drive. This ain’t the first time it happened. Any suggestions?
Answer #1
google is your friend.
http://forums.xbox-scene.com/index.php?showtopic=484726
E74: There is high chance it's a scaler chip problem (the "ANA" or "HANA" chip near the AV cable connection) it can also be caused by a faulty AV cable so check that first. In some cases it is a problem with the GPU and may be repairable by doing the x-clamp replacement (see error 0102)