Arduino crashes computer

Hi,

I have been using various Arduinos for a while. Some time ago I noticed that if I plugged an Arduino directly to the computer I got a USB device not found error, However, if I plugged the same Arduino in through a USB hub, usually on my monitor, it worked fine. So I have been using the hub.

Today I plugged an Arduino in to the computer directly and it crashed it, BSOD + loud buzzy noise. Restarted and tried again, sure enough another BSOD. Then I tried a FDTI adaptor (not connected to anything), BSOD.

I'm using windows 7. The USB ports seem to work fine with other accessories. Any idea what might be causing the computer to crash?

check the plug if there is dirt or something in it?? can it be wearing out, is the cable used a lot or relative new?

You could be close to current limits on the computers USBs and the Arduino draw of current cause system shutdown, this could be why the HUB will run as the external supply is providing for the load.

If I remember windows7 has port control for connected devices relate to current draw and charging.

robtillaart: check the plug if there is dirt or something in it?? can it be wearing out, is the cable used a lot or relative new?

Tried different ports and different leads - all the same. Tried different Arduinos and FTDI adaptors - all the same

The one thing they have in common is FTDI.

spicetraders: You could be close to current limits on the computers USBs and the Arduino draw of current cause system shutdown, this could be why the HUB will run as the external supply is providing for the load.

If I remember windows7 has port control for connected devices relate to current draw and charging.

Could be. Is there any way to find out if this is the case?

your BS and crash logs not showing any cause data. I monitor my UBS with a inline volt and amp meter. Cost me a few dollars on EBAY.