Question about Dell Dimension 4700 PC Desktop

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Usb 2.0 not working

My usb ports on my 4700 arent working devices can perform faster is the message since day one.I updated the BIOS and the chipset to no avail what next?My ext hard drive is slooow because of this.Help please!

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  • kukoo0000200 Sep 26, 2008

    Thanks.The remote assistance I got from dell wasnt able to do anything much but recommended reinstalling XP which Im dubious about>What you think?

  • kukoo0000200 Sep 28, 2008

    Hi dnx8,

    Yeah ok I think that sounds good maybe if you get a chance could you detail the steps a little more as Im just getting into fixing stuff for myself and dont want to make the problem worse by doing something wrong.

    A little knowledge is a dangerous thing...Thanks again.



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you said that the usb ports are not working even if you updated the bios and chipset.what we can do is that we need to load default settings on your bios. If ever that wont work it simply means that your motherboard is having the problem. call dell tech support and they will be able to replace your motherboard if they found out that the problem is indeed your motherboard. Call us at dell. Thanks.

Posted on Sep 26, 2008

  • dnx8 Sep 26, 2008

    I see.. Troubleshoot your PC first before reinstalling XP. Go to BIOS first and enable USB emmulator. Then if you have a thumb drive or a flash drive, plug it in your USB port. You need to have the CD for us to go to recovery console. Go to recovery console and then try to check if your able to see the USB device plugged in to your system. If ever you see that the device is recognize and can be access outside windows or in DOS, that means that windows is having the problem and not the USB port. That is the time that we can say that we need to reinstall OS. got it? if you have any problems with the steps just post it and I will be very glad to assist you with it. OKEY? ^_^



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if u plug in directly u need to update your BIOS and chipset driver.

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update your windows too

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If you go into my Computer/system/device manager. And remove the installed USB devices. shutdown the computer, and reboot it. then try putting your USB device in.
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USB 2.0 doesn't work on K8MM-V with XP PRO SP2???



ok now the K8MM-V has several 'chipsets' yours has 8 usbs? yes?

then you have the:


VIA VT8237R Chipset...
- Integrated Faster Ethernet LPC
- Integrated Hardware Sound Blaster/Direct Sound AC97 audio
- Ultra DMA 66/100/133 master mode PCI EIDE controller
- Supports 2 Serial ATA ports
- Supports 8 USB2.0 ports

ok? now:

download a new BIOS! this means read the readme.txt please!

<<this is the xp(64bit driver set>> (incase you are missing the 2.0 or yours is corrupt)

this is your BIOS (as i said please follow ALL instructions cause its inportant)


good luck!


after BIOS flash and driver updated go into the control panel > admin. settings > computer managment > device manager then look at the USB section and update the drivers!!


rerstart and volla!


good luck!






Oct 13, 2007 | MSI K8MM-V Motherboard

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