On Wed, 2006-06-28 at 07:20 -0700, Randall R Schulz wrote:
Hello again,
On Sunday 25 June 2006 21:54, Randall R Schulz wrote:
Hi,
I recently bought a Garmin GPS device (Forerunner 301) and since then I've had two system crashes.
...
I've resolved this issue and wanted to close the loop on this posting.
Shortly after my latest posting two days ago I had another crash that occurred when the Garmin device was not connected, had not been connected since the most recent reboot and VMware / Windows XP had not been run since then either, so I started looking for problems elsewhere.
I was running Memtest86 off the 10.0 boot / installation DVD and about three quarters of the way through the second full pass, the system reset again. This made me think that perhaps there was some temperature dependency (testing RAM runs the CPU pretty hard, of course), so I figured I'd turn up the cabinet fans to maximum to see if it would run longer. I reached over to the front panel to turn up the fan controls and when I touched the front panel, the system reset again!
Now, this cabinet has a couple of front-panel USB ports that are situated right next to the fan control knobs and there was a cable (with nothing attached at the other end) in one of the sockets. So now I'm thinking there's a mechanical aspect to this, and sure enough, I can make the system reset simply by tweaking the USB connector that's plugged in to the front-panel port. Then I discovered that I can get it to happen even without the cable plugged in by simply pushing and warping the front panel, so presumably the problem is in the socket itself. My best guess is that the connector transiently shorts the USB power lead to ground and that causes the system reset.
For the time being, I've disconnected the front-panel USB sockets at the motherboard riser. Now I'm short on USB connections...
Randall Schulz
You can always use a USB hub but if you do make sure it is a powered hub as you will have far fewer problems when using a powered hub vs. a non-powered type. -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998 -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com