Front usb ports are not working...can I buy a replacement and replace the whole port??
I've never seen 2 front USB ports that were bad. I've seen 1 that was defective because the USB device that was plugged into it was broken off. However in that case it caused the power supply to short out and prevent the computer from powering on. Here is a link to your model:
ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-760_Service%20Manual_en-us.pdf
If the USB ports on the back of your computer work then the front ones should too unless there is a connector dislodged to motherboard. All USB ports use the same circuit.
SOURCE: Dell Optiplex GX260 Tower flashing yellow power button
Hi
Power up the Optiplex GX260 and check the QUAD Pack Diagnostics LEDs (located at the back). Compare the LED pattern to http://support.dell.com/support/edocs/systems/opgx260/en/ug/solvprob.htm#1167139 for more info.
Ideally, to troubleshoot and resolve the issues, try removing all PCI devices, disconnect all external devices/peripherals including keyboard and mouse. You may leave the Monitor connected. Power up the PC and check for successful Power On Self Test (POST). If POST completes (generally fails on "Keyboard not present"), shutdown, connect keyboard and try POST again.
If all goes well, install PCI devices one at a time and test successful POST. This will help identity a failing device.
If issue persists, after removing all devices, remove the CMOS battery for about 90 seconds and try POST again. If same, remove all DIMMs (Memory) and check for beep codes. Compare beep pattern to http://support.dell.com/support/edocs/systems/opgx260/en/ug/solvprob.htm#1176760.
NB: Ensure to remove power lead and press power button briefly to use up flea power before working in the system.
If the system beeps, it suggests that the CPU and systemboard are "likely" fine. Install one DIMM at a time and test successful POST. If there no beeps then the systemboard and/or CU is/are at fault.
Regards
Mike
SOURCE: my usb ports aren't working at all
try reinstalling the chipset drivers from
http://support.dell.com/support/downloads/driverslist.aspx?os=WW1&osl=EN&catid=27&impid=-1&servicetag=&SystemID=PLX_GX620&hidos=WW1&hidlang=en
Select the Operating system
The Category as Chipset
Importance should be All
Click on the Intel driver
Download now
File name is R132539.EXE
If this does not work you will be having 2 usb at the back and in the front of the system.IF the back does not work than you need to get a local tech out at your place as it is a problem with the USB controller on the motherboard and that might have to be replced .If it is the front USB (Only if you have them) then there is a cable coming from the USB controller to the fromnt usb ports that cable might have got unplugged for that you need to open the tower.But i would still recommend a local tech.
SOURCE: dell 4600 usb ports not working
do one thing disconnect all the devices connected to the usb and if possible use a ps2 mouse to do the step i am going to tell you or if u can use the keyboard that would be fine ...
go to device manager and uninstall all that is under universal serial bus ... remove everything that says root hub and than restart the system
SOURCE: Location of USB Root Hub
Hi dottyo,
Generally the front USB ports on a computer are USB version 1.1, good for USB keyboard and mouse or printer.
But, almost always the USB ports on the back of the pc are USB version 2.0 which is what you are looking for. Try any ports on the back of the pc case.
Hope that helps!
SOURCE: OnBoard USB ports (both front and back) will not recognize any devices
When you reloaded the OS did you reload all the drivers? Sometimes if you do not reinstall the Intel driver the USB port will not be recognized. Happened on the last two DELL's I reloaded. Go to DELL's website and download all the drivers for your model.
Dell support website http://support.dell.com/support/downloads/
Look up your model by service tag, it is the alphanumeric code on the barcode label on the back of your DELL and also sometimes found on either the front or top of your DELL (sometimes it is hidden beneath the USB port cover that you flip up.
Try that and see if it fixes it. Also make sure that the connector did not come loose when you opened the case.
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