- Feb 25, 2009
- 1,210
- 34
- 91
I have a Dell Dimension 8300 with Windows XP-SP3 that I am working on. I am having an issue with USB devices causing the system to hang when they are plugged in (whether it is any 6 on the back or the 2 on the front). There are a few times the system has not hung, but it does not recognize that anything is plugged into the system when that happens. The owner of the desktop stated that he thinks he has seen a pop-up from the system tray about a power surge on the USB Hub before when trying to use a USB device. I have also noticed a few times that the power light on one of the USB flash drives I am using does not come on all the time.
I started to think that it might be PSU issue, so I tested the voltage while under load. My results were:
3.3v: 3.35v
5v: 5.11-5.12v
12v: 11.86-11.89v
It looks like the PSU is still within specs. Does anyone have any ideas as to what may be the issue here? Is it possible that the low voltage onthe 12v rail is still causing the problem. I have uninstalled and reinstalled the ports and Hub in Device Manager in XP to no avail.
I know that this might not actually be a PSU issue, but figured I'd start here first. Any ideas would be appreciated.
Thanks,
Merg
I started to think that it might be PSU issue, so I tested the voltage while under load. My results were:
3.3v: 3.35v
5v: 5.11-5.12v
12v: 11.86-11.89v
It looks like the PSU is still within specs. Does anyone have any ideas as to what may be the issue here? Is it possible that the low voltage onthe 12v rail is still causing the problem. I have uninstalled and reinstalled the ports and Hub in Device Manager in XP to no avail.
I know that this might not actually be a PSU issue, but figured I'd start here first. Any ideas would be appreciated.
Thanks,
Merg