I've successfully installed wiikey and played backup games. However, here is the problem. When I play my original game (such as wii sport), the system runs quite normal without much loud noise or vibration. When I play backup game such as Red Steel or Zelda, the system runs much louder and vibrate a lot more. Anyone experience this problem with wiikey or other mod-chip? Is it a bad installation or this is something you would expect with mod-chip? Please share your experience and your feedback.