Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
Forum Thread Details
  • Replies 10 replies
  • Subscribers 678 subscribers
  • Views 870 views
  • Users 0 members are here
Related

Raspberry Pi 512mb Bad USB controller connection.

wallarug

Is anyone else having the following issue:

I have discovered that there is a problem with the USB circuity. When-ever the device is touched on the USB controller (IC3), the device resets every thing attached to the USB circuit. When any device is removed or plugged into the device, the whole Raspberry Pi resets.

 

It is a real pain and I am sending my RPi back to be replaced.

Parents

  • IC3 contains the usb hub functionallity. If something goes wrong with it, it's normal that all usb devices fail.

    There have been reports that the xtal of that chip sometimes had cold solder joints. It's X1 on the bottom of the board underneath that chip.

    The Pi rebooting when you hotplug usb devices is caused by a dip in the power supply rail. The usb ports supply isn't decoupled very well.

    So, likely a replacement board will show the same behavour.

Reply

  • IC3 contains the usb hub functionallity. If something goes wrong with it, it's normal that all usb devices fail.

    There have been reports that the xtal of that chip sometimes had cold solder joints. It's X1 on the bottom of the board underneath that chip.

    The Pi rebooting when you hotplug usb devices is caused by a dip in the power supply rail. The usb ports supply isn't decoupled very well.

    So, likely a replacement board will show the same behavour.

Children