Acer travelmate(belongs to my grandson), one rear usb three side mounted. Rear socket had been damaged, plastic contact support missing, pins touching case. Before I looked at it, notebook crashed if any USB port used. Cleared pins touching case and tried memory stick in side mounted ports. PC did noot pick up stick. Tried connecting Digital camera - 'USB error' comes up on camera. Have checked Device Manager and all are shown as workoing correctly. Tried un-installing and letting XP pick them up again. Picked up and showing as working correctly but no dice when try to connect to any port. Help please
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Re: Acer travelmate(belongs to my grandson), one rear usb...
Motherboard dont have fuse has diodes which act similar to fuses but wont be blown.only things that will blow in that area are transistors or capacitors;but if these were blown usb's would not be detected.
in device manager were its says working correctly it relates to software istalled and working properly it cant tell u that the hub connection is damaged internally.
if your usb's are on card and connected to motherboard they can be replaced otherwise if built into motherboard youll have to take it to repair shop.
if the only problem is when u connect a usb device and not causing any other problems,u could use usb hubs that go into the pcmcia
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To explain a BGA surface mount; The older Intel Pentium 4 processors that used a Socket 478 processor socket, had contact pins on the bottom of the processor.
A chipset using the BGA surface mount does not have contact pins. It has Solder Balls in place of the pins.
There is no socket with socket holes. There are Copper Pads.
The chipset is set into place with the Solder Balls lining up on the Copper Pads. Then a specified temperature, and specified length of time is used to melt the solder balls. This solders the chipset to the Copper Pads, which in turn solders the chipset to the motherboard.
Excess heat, due to the laptop is overheating, can partially re-melt the solder connections made, and cause a poor contact.
May be caused by the laptop is dirty inside, and the cooling capacity of the cooling components, has dropped tremendously.
May be due to a poor cooling system design in regards to the graphics chipset.
The cooling system may be adequate enough to keep the Processor within it's specified temperature operating range, (Thermal Limit), but NOT adequate enough to keep both, Processor AND graphics chipset cool.
Using the HP Pavilion dv9000 series of Notebook PC, this video gives information on the problem in more detail,
You are using Acer Aspire One Notebook. Notebooks generally doesn't have serial port (Printer port) as used by old printers. However Acer Aspire one notebook have USB port on which you can connect your USB printer. Serial ports are old and not support by new computers or notebooks.
If the laptop switches off as soon as you insert the usb cable, there is a problem with either the usb socket or the cable. It is a safety system which stops usb power being re-directed down the usb data lines. If you have tried multiple cables with the same result then the problem is with the usb socket. try a different socket (a usb hub will help if you are short of spare sockets). Using a mall light, and maby a magnifying glass, inspect the usb port for bent pins or contacts, some sockets have pins (older dell machines especially) which are not supported at all by plastic backing strip and can be bent easily by inserting the usb plug incorrectly or by children armed with a pen etc. If you find bent pins (there should be 4 pins evenly spaced or 4 metal strips along a plastic backing peice) remove the battery and attempt to realign the strips with a small screwdriver. switch the laptop on and try a usb plug in the socket - make sure you insert the plug gently and squarely (and the right way round). If the laptop still fails, have another go or ask someone else (who is nimble fingered and technically minded) to try it. Don't give up (unless you find the socket is broken ie. missing pins) I can guarantee 99% that this is the problem. good luck
You can download the drivers from below link,
alternatively you can see the exact driver by finding through Unknown Device Identifier
See if there is an error beep. If there is an erro beep, then change main board. Power off. Then check if RAM CPU BIOS are well-connected. Press Fn+F5 three times slowly LCD FPC LCD inverter LCD USB does not work correctly USB device cable is firmly connected into the USB ports. Test
Watch out that you haven't switched off the screen by accident. One of the function key combinations toggles between the built-in screen and the VGA socket on the back or side panels to allow the use of either an external monitor or video projector. The key combination toggles three ways: 1) internal screen, 2) external VGA, or 3) both. On my Acer Travelmate 2200, the key combination is <Fn> + <F5>. Please try this first.