I have 4 ports on my laptop - I had 3 items plugged into the USB ports - when I added a 4th - POOF - nothing from any of them. I have tried to remove the drivers - reboot and "find new hardware" but that isn't working... what else can I do - or is there a "trick" in the previous I don't know about... THANKS
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Re: usb port overload
Difficult to diagnose...do not know of a "trick"...although one solution is to get a PCMCIA card (they are getting very inexpensive now) that has 2 USB ports...you can add a USB hub from one of them to again have 4 or more ports.
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Just use the others. You can get a 4/5 port extension that fits into any one USB (Working Port) for a few dollars. Each port allows additional USB devices to be added onto the original single port. Assuming you have TWO active ports, that translates to 8 USB ports min. Tiger Direct has them cheap.
This is because you are plugging in a USB 2 device to a standard USB port, or a USB 3 device into a USB 2 port. The computer is just telling you that if you upgrade the hardware, the device will work faster. Its more of an information message than an error. Your device should still function fine.
Are you using XP? If so: Here is what you can do to refresh the USB ports: 1. Right click MY COMPUTER 2. Select PROPERTIES 3. Select HARDWARE 4. Select DEVICE MANAGER 5. Select UNIVERSAL SERIAL BUS CONTROLLERS 6. Right click on each USB CONTROLLER and select Uninstall 7. Uninstall all entries 8. Reboot your computer 9. As your computer re-boots it will reinstall all USB connections it detects THEN, when all other USB items have been configured and connected by the system, you then should try connecting your USB device.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it. Thanks, Joe
Hi there. Sounds like the iphone has overloaded the system and knocked the USB controllers out. Reboot the machine and enter the bios (this is usually F2 on start up) reset the bios to its default settings, save and exit. The laptop should then reboot and hopefully you should have USB control back. Post back if you still have no USB.
You can plug a USB hub into the working USB port on the computer. The USB hub can have several ports so you can plug in several USB devices.
I suggest you get a powered USB hub because if all the devices that you plug into this hub exceeds 500mA then your computer's USB port will stop working because it could not supply enough current.
You will not need to plug in the power adapter into the hub if the device/s do not overload the computer's USB port.