USB Interface Problems

Question

I have a Dell Dimension XPS 400 and I am having problems with the USB ports.  My keyboard and mouse are both USB so I am not able to completely logon to my computer.  Suddenly the 5 ports in the rear and the 2 in front stopped working.  I cannot even get into my bios page.  Any help would be appreciated.  Thanks.

LtCol.Alvarado · Answer

Sounds like you may need a motherboard replacement, better check with support though, and if necessary, they'll issue you a DPS (dispatch #) and a Skilled Technician will be sent to your house with the motherboard to replace it for you, get it in before 5PM and they will most likely have the tech there next day (tomorrow).

peanutsfan68 · Answer

Not sure that is the problem.  Login to windows works fine, just unable to navigate any further than the login prompt.  I can't even access bios.  Would it have something to do with the drivers for the USB interface?  I get no activity on any port.  Thanks!

LtCol.Alvarado · Answer

Try re-installing the chipset driver, it controls the USB ports and their respective 'hubs'...

peanutsfan68 · Answer

I don't seem to be getting anywhere.  Of course I am unable to reinstall anything because I cannot get any further than the logon.  I am completely stuck.  Is it time for tech support?

DELL-Chris M · Answer

peanutsfan68,

Can you boot into safemode?

* Power the system off
* Power the system on
* At the blue Dell, tap F8 to bring up the Windows boot menu
* Scroll to and select Safe Mode [Press the Enter Key]
* Select the first or only operating system [Press the Enter Key]

peanutsfan68 · Answer

Thanks for your reply, Chris.  No I cannot.  At this point I have no interaction at all other than pushing the power button.  Thanks!

peanutsfan68 · Answer

Without the USB ports, my keyboard or mouse do not work, therefore I am unable to navigate to bios, device manager, or anything.

LtCol.Alvarado · Answer

Does it have PS2 Keyboard slots? If so, do you have a USB to PS/2 (generally blue) adapter you can try?

DELL-Chris M · Answer

peanutsfan68, * Power the PC on * What color is the power button LED while flashing? * What color are the four 1234 Diagnostic Lights on the front of the PC?

peanutsfan68 · Answer

Thanks Chris, the power button flashed green and there are no diagnostic lights lit up.

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