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Old 04-03-2013, 11:36 AM   #1
Dreeass
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Over-current on USB port


Some time ago I have installed a new power supply and videocard and since then I have gotten warnings on Windows telling me about too much voltage on USB ports. I have ignored it till now because I'm trying to run a LiveCD based off Linux and it spams the following message:
Code:
hub 3-0:1.0: over-current change on port 1
This spams for port 1, 2, 3 and 4 and keeps repeating, is there anything I can do to fix this?
 
Old 04-03-2013, 12:00 PM   #2
H_TeXMeX_H
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I would suspect the PSU. Do you have a spare to test with ?
 
Old 04-03-2013, 12:18 PM   #3
Dreeass
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I had to get a new PSU since my new videocard required more watt and my old one didn't suffice.
 
Old 04-03-2013, 05:17 PM   #4
mostlyharmless
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Had this happen to me too, and I actually checked the USB ports with a volt meter. There was no overvoltage detected, nor any difference between the USB port reported as over vs the others reported as normal. Couple years later, everything still works. So, get a voltmeter and check them, if they're normal I guess you could leave it alone; if you find out something different, do post it...
 
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Old 04-03-2013, 05:25 PM   #5
Dreeass
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Quote:
Originally Posted by mostlyharmless View Post
Had this happen to me too, and I actually checked the USB ports with a volt meter. There was no overvoltage detected, nor any difference between the USB port reported as over vs the others reported as normal. Couple years later, everything still works. So, get a voltmeter and check them, if they're normal I guess you could leave it alone; if you find out something different, do post it...
I can't leave it untouched because I need the LiveCD to get the Windows NT hash since I don't have admin rights and Ophcrack is stuck when it is checking USB modules. So there must be something wrong, but what could be it since I haven't broken something or removed something.

Btw: It spams that message for 4 ports but I have multiple ports, I think I have 8 USB 2.0 ports and 2/4 3.0 ports.
 
Old 04-03-2013, 05:40 PM   #6
onebuck
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Member response

Hi,

Welcome to LQ!

Quote:
Originally Posted by Dreeass View Post
Some time ago I have installed a new power supply and videocard and since then I have gotten warnings on Windows telling me about too much voltage on USB ports. I have ignored it till now because I'm trying to run a LiveCD based off Linux and it spams the following message:
Code:
hub 3-0:1.0: over-current change on port 1
This spams for port 1, 2, 3 and 4 and keeps repeating, is there anything I can do to fix this?
Which LiveCD?
Do you have anything plugged into the ports? Plugged USB devices are system powered or self powered? As root to list USB devices;
Code:
lsusb
If you use 'lsusb -v' then detailed information will be provided, at the end of each device section you will see device status for self or bus power.

Excerpt from 'man lsusb';
Quote:
lsusb - list USB devices

SYNOPSIS
lsusb [ options ]

DESCRIPTION
lsusb is a utility for displaying information about USB buses in the system and the devices connected to them.

OPTIONS
-v, --verbose
Tells lsusb to be verbose and display detailed information about the devices shown. This includes configuration descriptors for the device's
current speed. Class descriptors will be shown, when available, for USB device classes including hub, audio, HID, communications, and chipcard.

-s [[bus]:][devnum]
Show only devices in specified bus and/or devnum. Both ID's are given in decimal and may be omitted.

-d [vendor]:[product]
Show only devices with the specified vendor and product ID. Both ID's are given in hexadecimal.

-D device
Do not scan the /dev/bus/usb directory, instead display only information about the device whose device file is given. The device file should be
something like /dev/bus/usb/001/001. This option displays detailed information like the v option; you must be root to do this.

-t Tells lsusb to dump the physical USB device hierarchy as a tree. This overrides the v option.

-V, --version
Print version information on standard output, then exit successfully.
 
Old 04-03-2013, 05:45 PM   #7
Dreeass
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Quote:
Originally Posted by onebuck View Post
Hi,

Welcome to LQ!



Which LiveCD?
Do you have anything plugged into the ports? Plugged USB devices are system powered or self powered? As root to list USB devices;
Code:
lsusb
If you use 'lsusb -v' then detailed information will be provided, at the end of each device section you will see device status for self or bus power.

Excerpt from 'man lsusb';
The LiveCD's are Hiren's Boot CD which spams the message and Ophcrack that is stuck at looking for USB modules. I do not run any Linux based system, but I'll try to run Ubuntu from a LiveCD tomorrow and I'll tell you how it goes and what the output from the commands are.
 
Old 04-04-2013, 10:19 AM   #8
Dreeass
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This is the output for lsusb -v: http://pastie.org/private/vdqqsbbcwr8ew18em7phg
and this is the output for lsusb: http://pastie.org/private/elbkt0otvttxeokyvfusgg
I ran this from Ubuntu LiveCD
 
  


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