P4P800SE & USB Problem
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From: Ian D. Weatherall on 4 Feb 2006 23:08 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. 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
From: Paul on 5 Feb 2006 03:40 In article <ESeFf.19781$Sk1.436499(a)news20.bellglobal.com>, "Ian D. Weatherall" <paw17(a)csolve.net> 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. > > 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 Do you own a voltmeter ? Clip the ground of the meter to one of the screws on the I/O connectors on the back of the computer. That is to prevent it from falling into the computer. The screws on the I/O connector are at ground potential. With the red lead of the meter, and the meter switched to DC volts (10 volts full scale), touch the top of the jumper plug on USBPW56 and USBPW78. The metal on those jumper plugs should be +5V. Leave all your normal USB devices connected. Are you getting a full 5V there ? I think the game port doesn't have any Polyfuse to protect it. (For an example of a Polyfuse, look to the left of USBPW78. The Polyfuse automatically recovers from an overload and in that example, prevents a device connected to the USB 2x5 header, from burning one of the tracks feeding it power.) Maybe you accidently grounded the +5V on the game port, and have partially burned a 5V conductor. That conductor could be shared and used to power the USB headers 56 and 78. Another test you can carry out, is change the setting of USBPW56 and USBPW78 to the other position on each. That will change the power source between +5V and +5VSB. Perhaps whichever one is burned, switching positions will restore some functionality for you. One workaround would be to use a powered USB2.0 hub on one of the working ports. Some of those devices have a power brick with 3A of juice on it, suitable for running some of those heavy loads. A second solution is to get an add-in PCI card with a USB2 chip on it. A card with a "NEC" chip would be an option. Paul
From: Ian D. Weatherall on 5 Feb 2006 18:05
Hi Paul, Thank you for the suggestions I will give them a go over the next couple of days and let you know. Thanks again, Ian "Paul" <nospam(a)needed.com> wrote in message news:nospam-0502060340210001(a)192.168.1.178... > In article <ESeFf.19781$Sk1.436499(a)news20.bellglobal.com>, "Ian D. > Weatherall" <paw17(a)csolve.net> 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. >> >> 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 > > Do you own a voltmeter ? Clip the ground of the meter to one > of the screws on the I/O connectors on the back of the computer. > That is to prevent it from falling into the computer. The > screws on the I/O connector are at ground potential. With the > red lead of the meter, and the meter switched to DC volts > (10 volts full scale), touch the top of the jumper plug on > USBPW56 and USBPW78. The metal on those jumper plugs should > be +5V. Leave all your normal USB devices connected. Are > you getting a full 5V there ? > > I think the game port doesn't have any Polyfuse to protect it. > (For an example of a Polyfuse, look to the left of USBPW78. > The Polyfuse automatically recovers from an overload and > in that example, prevents a device connected to the USB > 2x5 header, from burning one of the tracks feeding it power.) > Maybe you accidently grounded the +5V on the game port, > and have partially burned a 5V conductor. That conductor > could be shared and used to power the USB headers 56 and 78. > > Another test you can carry out, is change the setting of > USBPW56 and USBPW78 to the other position on each. That > will change the power source between +5V and +5VSB. > Perhaps whichever one is burned, switching positions will > restore some functionality for you. > > One workaround would be to use a powered USB2.0 hub on one > of the working ports. Some of those devices have a power > brick with 3A of juice on it, suitable for running some > of those heavy loads. A second solution is to get an > add-in PCI card with a USB2 chip on it. A card with a > "NEC" chip would be an option. > > Paul |