Solved front usb port(pc) not working properly

October 30, 2011 at 05:19:05
Specs: Windows 7, i5
when i try to connect cell_phone/data_card through front pc port they doesn't seem to work .but pendrive works .all of them work on rear ports .i am not able to connect anythnig execpt pendrive what sort of problem this is

See More: front usb port(pc) not working properly

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✔ Best Answer
October 31, 2011 at 19:31:12
Some cheap desktop cases have inadequate wiring for the front USB ports. The only way of fixing that is to replace the wiring.
How do I know ? I have one of those, and a friend does too.
(You can have the same problem if you use an old case with front USB ports that was made before USB 2.0 controllers and devices were available with a newer mboard that does support USB 2.0 devices. )

For the front ports (lower down) in my case, corded mice and keyboards are recognized fine, but flash drives nag you about they would work better if the port supported USB 2.0 or similar despite the fact the mboard does, external hard drives are not recognized.

On my friend's case, the (lower down) front ports won't allow the recognition of his printers or his external hard drive.

(He paid about $55 for the case, which came with an el-cheapo 500 ? watt PS - I didn't like that PS and convinced him to get a better one and not use that PS at all.)

If you can handle a simple soldering job, or if you know someone who can, buy yourself a USB wiring adapter meant for installing in a slot space at the back of the case that has two USB ports in a bracket you install in a slot space, that is rated for USB 2.0 use, remove the wiring from that at the bracket end, remove the wiring from your (lower down) front ports at the ports end, solder the better wiring to your front parts and they'll work fine with all USB devices.

OR - cases often have USB modules for the (lower down) front ports - there are only so many types / sizes / ways of mounting them - however finding one that fits / mounts in your case properly that suppports USB 2.0 specs is unlikely, and they usually don't come with the wiring.
...

If you have front ports higher up on the front of the case, they may be two ports in a USB hub that connects to one USB port connection on the mboard - it's wel known USB ports in that type of hub do not allow all USB devices to be recognized properly. They're sharing the 500ma max available from the one mboard header connection. E.g. one external hard drive may work in a port, ONLY if nothing is in the other port there.
(External hard drives and external optical drives require 500ma is available from the USB port.)

The USB ports lower down on the front are usually each connectecd to one USB port connection on a mboard header.



#1
October 30, 2011 at 14:04:22
Look at the device manager for any yellow or red marks. If there aren't any, I think it would be a hardware problem.

How do you know when a politician is lying? His mouth is moving.


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#2
October 31, 2011 at 01:48:14
there are no yellow or red marks on in device manager

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#3
October 31, 2011 at 05:55:45
Then I would think that it's a hardware problem.

How do you know when a politician is lying? His mouth is moving.


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#4
October 31, 2011 at 09:35:47
today i bought sandisk cruser windows says this device can perform better
sir,i understand thats a hardware problem but what is the source of problem as my vendor does not provide me good support and my system is under warranty

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#5
October 31, 2011 at 14:31:56
If it's under warranty, why are you asking us? Take it to the place that sold it to you. If they don't provide good support, ask for a new machine.

How do you know when a politician is lying? His mouth is moving.


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#6
October 31, 2011 at 16:52:54
its an assembled pc that's why i was asking what is the source of the problem

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#7
October 31, 2011 at 19:31:12
✔ Best Answer
Some cheap desktop cases have inadequate wiring for the front USB ports. The only way of fixing that is to replace the wiring.
How do I know ? I have one of those, and a friend does too.
(You can have the same problem if you use an old case with front USB ports that was made before USB 2.0 controllers and devices were available with a newer mboard that does support USB 2.0 devices. )

For the front ports (lower down) in my case, corded mice and keyboards are recognized fine, but flash drives nag you about they would work better if the port supported USB 2.0 or similar despite the fact the mboard does, external hard drives are not recognized.

On my friend's case, the (lower down) front ports won't allow the recognition of his printers or his external hard drive.

(He paid about $55 for the case, which came with an el-cheapo 500 ? watt PS - I didn't like that PS and convinced him to get a better one and not use that PS at all.)

If you can handle a simple soldering job, or if you know someone who can, buy yourself a USB wiring adapter meant for installing in a slot space at the back of the case that has two USB ports in a bracket you install in a slot space, that is rated for USB 2.0 use, remove the wiring from that at the bracket end, remove the wiring from your (lower down) front ports at the ports end, solder the better wiring to your front parts and they'll work fine with all USB devices.

OR - cases often have USB modules for the (lower down) front ports - there are only so many types / sizes / ways of mounting them - however finding one that fits / mounts in your case properly that suppports USB 2.0 specs is unlikely, and they usually don't come with the wiring.
...

If you have front ports higher up on the front of the case, they may be two ports in a USB hub that connects to one USB port connection on the mboard - it's wel known USB ports in that type of hub do not allow all USB devices to be recognized properly. They're sharing the 500ma max available from the one mboard header connection. E.g. one external hard drive may work in a port, ONLY if nothing is in the other port there.
(External hard drives and external optical drives require 500ma is available from the USB port.)

The USB ports lower down on the front are usually each connectecd to one USB port connection on a mboard header.


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#8
October 31, 2011 at 20:24:57
That makes sense.

How do you know when a politician is lying? His mouth is moving.


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#9
November 1, 2011 at 08:56:26
thanks for the help , i appreciate your advice

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#10
November 1, 2011 at 09:20:56
Thanks for the thanks - we appreciate that.

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