Computer hangs when I try to insert pendrive

December 28, 2010 at 08:31:24
Specs: Windows 7
Hi,
it occured to me twice.
I am going to insert pendrive to from usb slot on PC case. I am getting closer, and then screen goes black and computer does not respond. I don't know if it is in the moment when pendrive touches the usb port or just before it. But it occured 2 times and both were with pendrive scenario.
Please help

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#1
December 28, 2010 at 10:19:10
If the problem occurs BEFORE you have plugged in the pen drive (flash drive), it has nothing to do with the pen drive (flash drive).
Your power supply and the metal parts of the desktop case are grounded and must be properly grounded between the case and the power source, and the power source female plug-in receptacle must have 3 incoming wires that are connected to the proper contacts for ground, neutral AC, and live AC . The cord between the case and the receptacle, and any power bar or UPS between the cord and the power source, must be grounded - have 3 wires, 3 prongs on it's plug. You can check whether the AC receptacle you're plugging into is properly wired by plugging in an inexpensive testing device that has 3 leds or lights (or by using a voltage meter and ohm meter, if you know what you're doing - the AC power to the receptacle must be switched off when you use the ohm meter).
.........

If the problem occurs when you plug it the pen drive (flash drive) into a front case USB port......

- try the pen drive (flash drive) in a USB port on the BACK of the computer case .
- if it produces the same symptoms with that, your pen drive (flash drive) is damaged - shorted ! DO NOT USE IT !
- if it does not produce the same symptoms with that but the pen drive (flash drive) is not recognized by Windows, then probably either the pen drive (flash drive) is damaged, or it's okay but the data on it is damaged, which can usually be fixed.

- If it works fine with that back USB port, and isrecognized fine in Windows, either the front USB port(s) does(do) not have the proper wires connected to the proper pins on the USB header on the mboard, or the wiring is connected to a FIREWIRE header, not a USB header, in which case you will DAMAGE the mboard's circuits in a short time if you plug in any USB device into the front USB port(s), and probably the USB device you plugged in as well !.
Some mboards have identical numbers of pins and the arrangements of pins on headers for two USB ports and firewire headers.

Less likely...

- examine the interior of the female USB port in the front of the case you are plugging into - the plastic blocking plug that prevents you from plugging in a USB device upside down must be there - the metal contacts must be in their proper place and not be bent.
- examine the exterior metal "shell" of the USB port to see whether it is bent out of shape

- examine the interior of the male USB plug on the pen drive (flash drive) - the plastic blocking plug that prevents you from plugging in a USB device upside down must be there - the metal contacts must be in their proper place and not be bent.
- examine the exterior metal "shell" of the USB plug to see whether it is bent out of shape



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