Acer Aspire 5100 freezes everytime a device is connected to a usb
My usb ports on my Acer Aspire 5100 worked until one day, I had to reformat the HD due to a virus. I reinstalled the OS from the partition that Acer has already set in the HD. Once the OS was reinstalled, I noticed that anything that I connect via the USB port suddenly freezes the laptop. I am then forced to do a hard reboot of the system. I tried each usb port and the same happens. I check the settings in Device Manager and everything appears to be working with no yellow question marks. I tired unstalling unstalling the usb root numerous of times but the problem still exists. I tried tons of solutions on various sites and still the problem continues. I finally flashed the BIOS to a newer version but when I go into the BIOS, there is nothing there referring to the USB ports. I also noticed that the laptop will no longer stay on battery power so when I disconnect the power cord, the laptop shuts off. I can no longer use it on battery power because it will not allow. Finally, the EPower Managment software that comes with the Acer laptop, does not allow me to choose any other options and always stays on Maximum Power which can only be used with the power cord connected. I can not choose the other options because it is greyed out. Please help!
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Check in the BIOS to make sure that the HD is present in the system before proceeding..
If not then power off the laptop and then carefully remove and replace the HD from and to its connector.
Then secure it then reboot the laptop.
Check the BIOS settings again to see if the HD is recognised.
If you still can’t see the HD then obtain a USB to IDE / SATA adaptor cable from eBay or your local PC store and remove the HD from the laptop and lay it down on a flat horizontal surface and use the adapter to connect to the laptop’s HD and connect the USB to another PC. This will show if there are any issues with the HD itself and will allow you to format it if necessary.
Then replace it back in the laptop and all should be well.
If not then you can suspect that you have an HD controller issue which is a very costly repair in a laptop.
If the laptop will boot or you have a bootable CD / DVD then change the boot sequence in BIOS to be CD/DVD then Hard Disk.
Reboot the laptop.
Once booted look at the Device Manager to see if there are any errors showing in the Storage Devices and the Hard Disk in particular.
Then go to option 5 or use the bootable CD / DVD to reformat and rebuild the hard drive.
If all the above fails then install a new Hard Drive, format it as required and reinstall the Operating System and applications.
Check the driver status of the USB. You can do this by accessing the Device Manager. For users using Windows XP, just click the Start icon. On the Run box, type devmgmt.msc. You can also do the same with Vista.
Next thing, check for devices with an (!) sign with a yellow background. These devices needs driver update or correct driver should be installed.
For a start, you can do a Windows Update. Click Start, All Programs, and then Windows Update. This will download patches for your system.
Go to Control Panel, System, Hardware, and Device Manager. Look for serial ports/USB ports. Verify installed and active. If not, go to Bios 'setup' at start-up and activate from there. Be sure to save and exit even if you change nothing--otherwise everything returns to default.
hi, yes it is a motherboard issue-i have 2 of those with same problem. new boards for that model are costly. however i found a work around-get a usb pcmcia card put it in the slot on the side-then plug your mouse or other usb devices and you should be ok! I did this a year ago and it runs like new! way cheaper than getting a new one. this is a big problem with these 5100 models. acer no help-other than selling you a new mainboard. this is the best way 2 make it work again. the pcmcia cards are cheap enough. and after that you can get a usb hub if you need more ports. good luck! and please rate this solution. and make sure 2 turn on the cardbus if not on allready. (in epower manager) this will work! reply if you need help! be well!
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
Take a look in Device Manager to make sure all devices are working correctly and that there are NO Yellow or Red marks.
If Yellow Exclimation is on the device, try reinstalling the driver for that device.
If Red X Mark is on the device, enable that device.
If this does not solve your issue, you should take your Laptop to your local computer repair shop.
Sounds like a hardware issue. I would guess that there is a bad connection between the usb's and the motherboard. If you are comfortable dismanteling the laptop and re-soldering the usb's than give that a try, but I would recomend you give it to a pro.
Here is a link that explains the process.