It sounds like a defect in the USB circuit on your system board. (This assumes that the problem occurs with any USB port). You might be able to add a PCMCIA board to add USB funcionality without replacing the system board to save money.
If some USB devices work but others don't it is probably a problem with the current draw. A mouse draws very little current, a camera more, and a printer lots more. It is the same as using a powered USB hub, versus a non-powered hub. Some devices work on the non-powered hub, but some do not work. It seems that when you plug in a device that pulls too much power, your PC has problems... Still think it is the motherboard. You might also try using a powered USB hub to assist the laptop or try the previously mentioned PCMCIA card.
If some USB devices work but others don't it is probably a problem with the current draw. A mouse draws very little current, a camera more, and a printer lots more. It is the same as using a powered USB hub, versus a non-powered hub. Some devices work on the non-powered hub, but some do not work. It seems that when you plug in a device that pulls too much power, your PC has problems... Still think it is the motherboard. You might also try using a powered USB hub to assist the laptop or try the previously mentioned PCMCIA card.
Answers & Comments
Speed up your laptop and avoid from freezing issues by:
-- cleaning system junk
-- optimizing computer services
-- optimizing internet
-- repairing registry
-- defraging registry
-- clearing browsers junk
do these things with some secure tool such as Intel Software Partner Reginout.
It sounds like a defect in the USB circuit on your system board. (This assumes that the problem occurs with any USB port). You might be able to add a PCMCIA board to add USB funcionality without replacing the system board to save money.
If some USB devices work but others don't it is probably a problem with the current draw. A mouse draws very little current, a camera more, and a printer lots more. It is the same as using a powered USB hub, versus a non-powered hub. Some devices work on the non-powered hub, but some do not work. It seems that when you plug in a device that pulls too much power, your PC has problems... Still think it is the motherboard. You might also try using a powered USB hub to assist the laptop or try the previously mentioned PCMCIA card.