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Usb port willnot support a thumb drive

It will power an optical mouse, but will not power a usb hub. If i put the optical mouse in the hub, it will not work, but it will work directly when plugged into the usb port on the lap top.

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  • merr48 May 18, 2009

    actually the hub will power the mouse but the mouse will not work if not directly attached to the usb on the laptop body. The thumb drive will not even be recognized on the laptop in either case.

  • Daniel668 May 11, 2010

    Will anything else work in the hub?

  • Dan Todd May 11, 2010

    Is the hub powered? Do you have the power cord plugged in securely?

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Mouse cursor not moving


It would be easier to answer this with some more detail - does the cursor ever move, or does it work for a time at startup, then freeze, and if so, when does it freeze? Does the keyboard work? How about other USB devices? Is the mouse connected to a USB port on the Mac, or does it go through a USB hub? Do you get a pop-up menu if you control-click? Does the mouse work if it is plugged into a different port or computer?
In the absence of such important details, I will have to write a relatively long diagnostic routine.
The very first is to verify that the mouse is powered. If it is a laser mouse, pick it up and look at the bottom. You should see the red light coming out of the hole in the bottom. If you do not, unplug the mouse and plug it into a different USB port on the computer. Do not plug it into the same hub if it is connected through a hub (if the hub is bad, you won't differentiate the problem). If the mouse lights up and the cursor moves, the USB port you were using is not supplying power (if the dead port is on a hub, now you can try another port on the same hub to see if the hub or its power supply is bad). If the mouse does not light up at all, then it most likely has a broken tail (worn out wire in the cable). Unfortunately, first-generation Apple laser mice are relatively difficult to disassemble for service. Try another USB mouse (a generic two-button mouse will work; the right button has the same function as option-click).
If the mouse lights up but the cursor does not move, you may have a broken data wire in the mouse tail, or a system or application hang. Try holding down <Apple>-<option>-<esc> to see if you can get the force-quit dialog. Press the power key (or <control>-<eject> on most Apple keyboards) to see if you get the sleep/restart/shut-down dialog. (Keyboard shortcuts for this dialog: esc = cancel, s=sleep, r=restart, <return>=shutdown.)
A restart may undo the problem, at least temporarily (usually this indicates a software problem). Software problems that actually freeze the computer are relatively rare in the Mac OS, but bad web scripts or poorly written applications can do it. It's a good idea to run Disk Utility after a freeze and forced restart (forced restart: <Apple>-<Ctrl>-<power key>) to make sure the file system is in good order. If it is a software issue and reinstalling doesn't fix it, avoid the software or whatever conflicts with it until a fix is published.
It is also possible that the operating system is corrupted, perhaps as a result of a failing hard drive or a power glitch while saving something to the drive. Check this by putting Disk 1 of your OS installer set in the optical drive and restarting while holding the option key until you see both a hard drive icon and the optical drive icon on the display. You should be able to use the mouse or the arrow keys to select the optical drive (once you start from Installer Disk 1, you can run Disk Utility to try repairs on the hard drive file system). If the mouse works normally when the system is booted from the optical drive, you have a problem with the hard drive OS.
The worst case cause is a hardware issue. This could be a damaged USB connector on the computer (it can be replaced, but generally requires a high level of skill to remove the bad connector from a multi-layer circuit board without wrecking the board, and for Macs less than ten years old, lead-free solder is required). A memory defect could cause a system hang, as could a fault on the logic board, or even in the power supply. These often appear to cause the mouse to freeze randomly and may display a temperature sensitivity (the computer works for a while, then locks up when it gets warm; neither the mouse nor the keyboard respond). If you suspect a memory issue, try removing all but one memory module. If the computer works normally (other than running slow or other signs of inadequate memoroy), then add modules back one at a time until the computer fails again. (CAUTION: only handle memory modules by the edges; they are easily damaged by static electricity. ALWAYS turn off the computer and unplug it before removing or installing a memory module; installing a module with power on can do serious damage to the module or logic board.) If the computer fails with just one module installed, remove it and try a different one. If it fails with any memory configuration and after all the previous tests have been run, you may have a defective logic board, power supply or USB connector board (if separate from the logic board).

Jul 08, 2013 | Computers & Internet

2 Answers

When i insert the usb port in any machine it says the usb port has exceeded the power limits of it hub port


The is indication of an over storage data medium. Consider freeing up the data from the device to attain continue usage. Attempt to achieve connectivity from any available connection ports that may recognize the storage medium to allow for data freeing taking achieving regular functionalities.

Feb 02, 2011 | LaCie Hard Disk 1TB Desktop with Hi-Speed...

1 Answer

Laptop Model : Dell XPS 1530 i think i m having some problems with the usb power issue. Problem 1: when i connect an external hard drive which have bigger capacity than 120gb, the power of the usb will...


It sounds like the motherboard is causing the usb ports to malfunction by allowing power surges into the power input to the ports.You maybe should try a powered usb hub to power your hardware or you may face motherboard replacement

Jan 10, 2011 | Dell XPS M1530 Laptop

1 Answer

MY OPTIARC DVD RW AD 7540 IS IN THE HARDWARE BUT I LOST IT AND IT WONT SHOW ALSO AS WELL AS IT DOES NOT WORK


1. Ensure the USB port is 2.0
2. Connect the drive directly to the USB port on the computer system. Do not connect the drive to a USB Hub
3. Try a different USB port on your system
4. Disconnect all other USB devices except a keyboard or mouse.

Also

1.
You need to ensure you are using the recommended media list.
2. Make sure the drive is listed okay in Device Manager. To ensure this, right click My Computer/Properties/Hardware/Device Manager. You should have a listing here for optical drive. Double click on the optical drive and make sure there are no yellow ! marks on the drive.
3. Get the latest Firmware updates available for your drive.
4. Make sure your System/Nero ASPI files are not corrupt. Go to Nero/Nero tool kit/Nero info tool. Click on the ASPI tab. In the arrow down tab, check both your system and Nero ASPI files. At the bottom, it should display ASPI is installed and working properly. If it does not, please get the latest ASPI update. http://sony.storagesupport.com/.

Also

1. Make sure the power cable connect properly.
2. Try sticking a pin in the little hole next to the eject button on the drive. This resets the reset button for the drive to open again.

If you need more help come back.Post / thumbs / testimonial are welcome!

Nov 27, 2010 | ASUS Computers & Internet

1 Answer

My mouse doesn't work with my mac for some reason. I tried new batteries and i tried putting it on my friend's mac and it worked and i tried switching the USB hub and still it doesnt work. it was working...


Try bypassing the USB hub and plugging the receiver directly into a USB port on the computer. Sometimes devices won't recognize properly if they're going through a hub.

Nov 25, 2010 | Logitech Cordless TrackMan Optical...

1 Answer

Ps2 port doesn't recognize Microsoft Optical mouse


You might think about a USB hub for all your USB devices. ps2 port is more or less dedicated for mouse, which is why your mouse pointer is stuck in the middle of the screen. Go ahead and get an externally powered USB Hub to power other USB devices. To answer, ps2 for mouse needs just a mouse, not USB device.

Sep 28, 2009 | Microsoft Windows XP Professional

1 Answer

Mouse will only work if directly placed in the usb port


this is really strange
i have buy a hub on chinese store and the computer recognize only the mouse, not the hub, but it works

try to install the driver if the mouse have anyone. and try to install the driver of the hub

May 18, 2009 | HP OmniBook XE2 Notebook

1 Answer

Usb ports do not active


One of the great features of USB devices is they can get power from the USB port. Plug in a thumb drive and it just works. The power for operating the thumb drive comes from the USB port. This works for small devices like a thumb drive but not something big like a scanner. The scanner need its own power supply.

There could be several explinations for what you are seeing. Could be you are plugging in a device which is sucking too much power and the laptop is shutting it down. I would test the port with something small like a thumb drive and see if it works. If the thumb drive works but the other device does not a couple of things could be going on. Maybe the device just need power - is there a way to plug in a power supply? Or maybe the device is broken and shorted out. Does the device work on another computer?

If something like a thumb drive does not work then it is a problem with the motherboard. Could be the USB ports are bad. It happens and there usually is no easy fix short or replacing the motherboard ($$$). Occasionally there is a BIOS setting for the USB ports. A bit of a long shot but worth a look.

A possible work around would be to get a power USB hub. A hub plugs into a USB port and provides 4 or 7 USB ports. Good ones come with a power supply. When the hub is plugged into the power supply it does not draw power from the computer. Might solve your problem.

Good luck!

Aug 23, 2008 | Acer Computers & Internet

1 Answer

Aspire 3610 USB ports


I think you might have a loose cononection for the data ports. Try putting a little bit of force on the usb device. Up, down left right. NOT ALOT. If it starts working when force is used, i tihnk you should try to take it apart and resolder the connections. If it dosen't work, uninstalling the driver and installing.

Jun 01, 2008 | Acer Aspire 3680 Laptop

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