Crumblee,

Thank you for using the DellTalk forum.

Try the following information, to solve the problem you
are having.
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Update the system bios.

1.Go to the following web page:
2.Type in your service tag, and click the "GO" button.
3.Click on the "Downloads" button.
4.Step 1...choose your operating system.
5.Step 3...choose "Flash Bios updates." and click "GO"
6.Click on "Dell Dimension System Bios."
7.Click on "Dell Dimension System Bios XXXXX" again.
8.Click on the file name: BD430002.exe
9.Download the file to your desktop.

Once you have downloaded the file, put a blank formatted disk in the system.
Double click the file, and follow the prompts to create the bios upgrade disk.
Once the disk is created, leave it in the system and reboot the system.
The Bios upgrade will occur as the system boots up, and reads the disk.
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Reset you bios defaults.

Try resetting the bios default settings.

Entering System Setup----------------------------------------

Using the F2 key the user may enter System Setup program.
If you are having trouble entering setup using this key,
press the F2 key when the keyboard leds 1st flash.
Also, (Ctrl)+(Alt)+(Enter) key sequence will still work.
Once you are in the System Setup Program (BIOS),
the top of the screen will read: Dell Dimension 4300

2.Resetting the default settings.

Press and activate the following keys.
(Capslock, Scroll Lock, Num Lock.)
When all three keyboard lights are lit, press the following keys.
( ALT-E )
With the keyboard lights lit, Clears the ESCD information stored in the NVRAM.
( ALT-F )
Resets all fields in the system setup to their factory default settings.
ALT-D With an individual field highlighted, resets the field to its factory default.
(ALT-B)
Exits System Setup, saving any changes, and reboots the system.
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USB Troubleshooting Questions

Try the device in all USB ports directly, not through any other USB devices or hubs.
Test the device on another computer or test another USB device on this computer.
Run usbreg.exe or manually remove the USB Root_Hub key from the Registry. To download and run this file, refer to the section below Running usbreg.exe.

Go to:
On the upper right hand corner, under ( Search Keywords or Filename:)
Type in the file: ( Usbreg.exe ) then click the GO button.
Click on the link that comes up, and then click on the file name.
When the File Download window appears, choose a destination and click Save.
After the file has downloaded, find it (usbreg.exe) on your drive and double-click it.
When the Registry Update window opens, click OK and follow the prompts.
After your computer restarts, the host controller and root hub will be redetected and reinstalled.
You may need your Windows CD.

How to Manually Clear the USB Entries:
Go to Start | Run | and in the run line type: regedit. While in registry editor click on the plus next to HKEY_LOCAL_MACHINE. Next, click on the plus next to the registry key ENUM. While underneath ENUM find the key USB and click on the plus next to it. Under the USB key there should be two keys, { ROOT_HUB and VID_04D2&PID_FFO5 }, remove the { VID_04D2&PID_FF05 } key and reboot the system.
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Here is an article on trying to give the "USB Root Hub" its own IRQ resource.

Article can be found at:
http://www.mustek.com/imaging/support/helpdocs/usb_pc.htm
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Sharing IRQ's with USB |
Typically, the USB Host Controller can share IRQs with other devices. However, in rare cases, it appears that if it is sharing an IRQ with another device, the USB device may not get recognized. If this happens, you can try forcing the Host Controller onto another IRQ in the Device Manager if there is one free:

Double-click 'Computer' at the top of the Device Manager and select the Reserve Resources tab.
Click Add and enter the IRQ # that the USB Host Controller is currently using; click OK three times to finish.
Go back to Device Manager main screen, select the USB Host Controller device and click Remove.
Restart the system. The USB Host Controller should be re-detected and set itself up on some IRQ other than the one it used before (preferably one that is not being used by anything else).
After successfully moving the Host Controller to a new IRQ, go back to the Device Manager and un-reserve the original IRQ so that whatever device was on it before will continue to work properly.

Check the "IRQ Steering" and make sure it is enabled from the Device Manager.
Click on the "+" beside "System Devices" and then double click on "PCI bus". Inside "PCI Bus. Properties" is "IRQ Steering" Click on "IRQ Steering"

Look on the bottom half of "IRQ Steering. If you do not see the above information or something similar, then IRQ steering is disabled and you will need contact your computer manufacturer to walk you through enabling IRQ steering.
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Here is information on how to manually test the USB hardware, to make sure the
hardware is working correctly.

How to test the USB hardware.---------------------------------------------

1. Disconnect all USB devices except your USB keyboard (if you have one)

2. Go to the following web page:
http://www.usbman.com/WebDrivers/USBview/
Click on the file: ( Usbview.exe ) and download it to your desktop.

3. Click Start-Shutdown-Restart-Ok
4. Double-click the file USBVIEW.EXE
5. You should see a display like this:
- My Computer
- Intel 82371AB/EB PCI to USB Universal Host Controller
- Root Hub
[Port1] NoDeviceConnected
[Port2] NoDeviceConnected
6. Close all boxes

7. Reconnect one USB device to any USB port on the rear of the system, not to the USB keyboard!! **CLOSE ANY BOXES THAT OPEN**
8. Double-click the file USBVIEW.EXE
9. You should see a display like this:
- My Computer
- Intel 82371AB/EB PCI to USB Universal Host Controller
- Root Hub
[Port1] Device Connected
[Port2] NoDeviceConnected

If your device is seen on either Port1 or Port2, the USB system and ports are OKAY. The problem lies with the hardware or software for the USB device.
------------------------------------------------------------------------------------------Run the Dell Diagnostics, to also test the USB hardware.

Run the Dell Diagnostics:

1.Go to the following web page:

2.Type in your service tag number, in the "Service Tag" field.
Then click the "GO" button.
3.Click on "Downloads "
Under the "Downloads" section of the page.
4.On the Upper Right hand side of the screen,
"Search Keywords or File Names,"
Type in the following file name: CD108010.exe
Then click the "Go" button.
5.Click on the Link that is brought up, and download the
"Floppy" version of the file.

This file contains a compressed (or zipped) set of files. Download the file to a folder on your hard drive, and then run (double-click) it to unzip the set of 1-5 files. Follow the instructions to create a set of floppy diskettes, and then use the diskettes to complete the installation.

To start the diagnostic tests boot the computer with the diagnostic disk in the appropriate drive.
The files will automatically load into the system.
The system will prompt for one several choices, depending on the extent and specificity of the tests to be run. For example, the choices will include:
Run 16-bit Diagnostics, Run All Tests, Run Quick Tests, Run Specific Tests, and Exit to MS-DOS. Depending on the Diagnostic version,
some of these choices may not be available.
You should try running the (Run All Test) if any errors are encountered
when try to use this choice, then use the 16-bit Diagnostics.
If any errors are encountered when the Diagnostics program is running,
then it is an actual hardware failure.
Run All Tests will run an entire, comprehensive test on the computer system.
Run Quick Tests will run all tests on the entire system, without running as an exhaustive test on the hard drive as the Run All Tests selection will.
Run Specific Tests allows for the testing of specific components in the system; this choice is used if there is good reason to suspect a specific component may be the cause of the failure.
Within Run Specific Tests are several specific tests which individually test RAM, System Set (the chipset on the motherboard), Video, Keyboard, Mouse, Drives, Ports (serial and parallel), SCSI Devices, and Network Interfaces.
Exit to MS-DOS will exit the diagnostics to a command prompt.

NOTE: For most situations, you should Run Quick Tests.
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You must have the Dell Resource CD or Windows CD, in the CDROM or DVD drive.
If you have a CDRW-Drive you must also have a blank formatted CDRW disk in that drive.
Disconnect all devices from the back of the system other then the, mouse,
keyboard, and monitor.
If you have a USB keyboard or mouse, you must switch to a PS2 keyboard or mouse. USB devices are not recognized by diagnostics.
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What is the results of the Diagnostics test???