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Usb i am trying to attach a hi-speed usb2 multi port to my usb port on my laptop. when i do this, the computer freezes. can you help me so i can attach devices to the multi usb2 device without any problems?

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  • chemisstree Sep 16, 2007


  • chemisstree Sep 17, 2007

    computer still freezes when the usb hub port is attached

  • chemisstree Sep 19, 2007

    toshiba satellite p15-420. the thing is; i am trying to attach an external drive to my laptop. every external device (dvd writer,hard drive,pda) all work fine before. now all i receive is a hub port limit exceeded error that won't go away.

  • JoaoNeto Dec 22, 2007

    Hello guys,

    This problem is happening to me as well. I have a compaq evo n610c (win xp and 1,25Gb ram) and I bought a external hard drive seagate with 500Gb. However when I plug it on my usb port, after about 1 minute my computer freezes.

    I tried everything (re-install drivers, change the usb drivers to win xp standards) and I realized that when I disable the "NEC PCI to USB Enhanced Host Controller (B1)" it works fine but with no USB 2.0 support (it is impossible to transfer big files to my external HD).



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What speed is the USB port on your laptop? Is it 2.0? or 1.0?

Posted on Sep 14, 2007

  • 1 more comment 
  • Dave Reisner Sep 16, 2007

    Try reinstalling the usb drivers on your laptop. Make sure all udb devices are unplugged. Go into the device manager (right click my computer select properties, select hardware, click device manager.Delete all the usb listings under the Universal Serial Bus Controlers heading. Then reboot your computer all the drivers will be reinstalled then connect your usb multi port unit to your laptop.

  • Dave Reisner Sep 18, 2007

    What is the brand and model of the laptop you are trying to connect to?

  • Dave Reisner Sep 24, 2007

    Are you saying that everything you plug into the usb port gives you that error?



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Recently, when I insert a USB flash drive into my laptop's USB port, I get the message: This USB device can perform faster if you connect it to a HI-SPEED USB 2.0 port.

Your laptop has USB1 port and the USB 2 message will appear if you plug an USB 2 device into this USB port.
You maybe able to upgrade the USB port to USB 2 if there is a BIOS upgrade available from the laptop manufacturer's WEB site.
If not you maybe able to get an USB 2 PCMCIA card to install into the PCMCAI slot on your laptop.

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Hello mklvon,
Welcome to FixYa.Com!
I would like to recommend that you first take a look at your computer. Check if you have a USB 2.0 High Speed port. Reason is because although you have a USB 2.0 Ext Multi-Burner but your connecting it to a USB 1.0 or USB 1.1 port, the Multi-Burner will only run as fast as the USB port can transfer data.
Another time I would like to recommend is for you to take a look at the USB cable itself. As it is an Ext. Multi-Burner it may require a power USB port w/c is the reason why most Ext. Burner's have a Y-connector that is one USB port on one side and the other side branches off to 2 USB ports as it required extra power. If it is, you may want to consider your options as to getting a powered USB port.
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I just bought an ASUS notebook but the USB cannot read any device what do i do?

Hi,Some USB devices are not APM/ACPI friendly and may not operate properly after resuming from Standby or Hibernation. Some of these steps may not apply to your computer. Test the attached USB device after performing each step.

1. Verify that a USB port and an operating system with USB support are being used to attach a USB interface external device to a ThinkPad system.

Note: The following is an example image of a ThinkPad system USB port
USB port

2. Verify that the latest BIOS and embedded controller for the ThinkPad system has been installed.

View the latest BIOS files for all ThinkPad systems(

3. Verify that USB is enabled in BIOS.
* For ThinkPad A, G, R, T, X and Z series systems

1. Turn on the computer.
2. While the "Press F1 for BIOS Setup Utility" or "To interrupt normal startup, press the blue Access IBM button" message is displayed at the lower left area of the screen, press the F1 key, blue Access IBM, or ThinkVantage button.
3. Select Config and then click USB. The window should list USB BIOS support as [Enabled].
For ThinkPad 600, 600E, 770, 770E/ED, 770X, and 770Z systems

1. Press and hold the F1 key and then turn on the computer. Hold the F1 key until the Easy-Setup menu appears. If a password prompt appears, type the correct password.
2. Select Config.
3. Select Initialize and then click OK.
4. Click Exit, click Restart, and then click OK to restart the system

4. Verify that the USB device and any required drivers were installed in accordance with the manufacturer's instructions.
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5. Verify the USB device works on another machine, if available.

6. Verify another USB device, if available, works on this machine.

7. Verify that the USB device is USB 1.1 or 2.0 compliant.
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8. Verify that external power is attached if required.
Some USB 2.0 devices will require additional power from external sources or an additional USB port to function correctly in USB 1.1 compliant computers.

9. Verify that the latest Microsoft Windows Service Pack has been installed for the operating system installed on the computer.
There are updates and fixes to USB 1.1 and USB 2.0 available in Service Packs.

10. If an operating system was installed from a retail CD, then refer to installing USB 2.0 support on ThinkPad systems.

11. Test the USB port for errors.
Run the PC Doctor diagnostics for all current ThinkPad systems. PC Doctor for DOS is available by pressing the F11 key or the blue Access button during startup to access the predesktop menu area. If these methods are not available for your system, then PC Doctor for DOS may be downloaded. This DOS version requires two or more floppy diskettes depending on the ThinkPad system.

12. If these steps have not solved your problem:
Refer to "Need more help?"

You could also try downloading an updated/fresh copy of the drivers for my specific model notebook from Asus's web site and just reinstall over the old ones.

And if you don't understand much about it, i would advice you take it back from where you bought it from and get a replacement if it's on guarantee...

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