p4p800se & USB Problem
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Posted by Ian D. Weatherall on February 4, 2006, 11:11 pm
Please log in for more thread options I am having a problem which has been going on for about a month. I have 8 USB ports on the mobo, 6 external and 2 internal 1 of the internal ports is connected to a combined floppy/media reader the other isn't used. 1 printer is using an external port 1 mouse is on another (the mouse is cordless with a built in 2 port hub) 1 pda is normaly plugged into another port to charge it The problem is that when I plug any device into 4 of the ports I get an unknown device mesg in WinXP-Pro(SP2), but it will work in another port. The problem occurs more often when I plug in a device which draws power eg. the PDA or my Canon Scanner which is powered by USB. Some times the scanner is recognised but fails when a scan is attempted. Please find below a list of everything I have done to troubleshoot the problem: Reset BIOS Reinstalled USB drivers Disconnected all USB devices and tried each port separately DIsabled all ports in BIOS then turned them back on 2 at a time Bought new PSU (antec 350) Used a different HDD with a fresh install of WIndows Set USB in BIOS to USB1 If I remember rightly the issue started after I started using the Game port, obviously I have tried to resolve the issue by unlugging the game port from the board. I have tried everything I can think of, I now believe the board is defective. Thankyou in advance, paw17 System: P4P800 SE (Skt 478) P4 3.0 1.0Gb Ram ATI AIW 9600xt 160GB Maxtor HDD | ||||||||||||||||
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Posted by Newfdog on February 5, 2006, 9:25 am
Please log in for more thread options USB ports only supply a limited amount of power and the size of the power supply does not change this. My guess is that you are trying to draw more power than the port can deliver. As you know if you connect to another port it works, this port may not be as heavily taxed power wise. One solution is to add a self powered hub. Newfdog | ||||||||||||||||
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Posted by Ian D. Weatherall on February 5, 2006, 6:02 pm
Please log in for more thread options Hello and thank you for the suggestion, I have tried a powered hub and the
problem remains, also the problems only started a month ago after 6 months of use. Which is why I am beginning to think the board is on it's way out. Regards, paw17 > Ian D. Weatherall wrote:
>> Hello All,
>> I am having a problem which has been going on for about a month. >> I have 8 USB ports on the mobo, 6 external and 2 internal >> 1 of the internal ports is connected to a combined floppy/media reader >> the other isn't used. >> 1 printer is using an external port >> 1 mouse is on another (the mouse is cordless with a built in 2 port hub) >> 1 pda is normaly plugged into another port to charge it >> The problem is that when I plug any device into 4 of the ports I get an >> unknown device mesg in WinXP-Pro(SP2), but it will work in another port. >> The problem occurs more often when I plug in a device which draws power >> eg. >> the PDA or my Canon Scanner which is powered by USB. Some times the >> scanner >> is recognised but fails when a scan is attempted. >> >
> USB ports only supply a limited amount of power and the size of the power > supply does not change this. My guess is that you are trying to draw more > power than the port can deliver. As you know if you connect to another > port it works, this port may not be as heavily taxed power wise. One > solution is to add a self powered hub. > > Newfdog | ||||||||||||||||
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> I am having a problem which has been going on for about a month.
> I have 8 USB ports on the mobo, 6 external and 2 internal
> 1 of the internal ports is connected to a combined floppy/media reader
> the other isn't used.
> 1 printer is using an external port
> 1 mouse is on another (the mouse is cordless with a built in 2 port hub)
> 1 pda is normaly plugged into another port to charge it
> The problem is that when I plug any device into 4 of the ports I get an
> unknown device mesg in WinXP-Pro(SP2), but it will work in another port.
> The problem occurs more often when I plug in a device which draws power eg.
> the PDA or my Canon Scanner which is powered by USB. Some times the scanner
> is recognised but fails when a scan is attempted.
>