TheTechGuide Forum

General Category => Tech Clinic => Topic started by: Al on October 16, 2004, 08:06:13 AM

Title: USB Hi-speed port stopped working in Hi-speed
Post by: Al on October 16, 2004, 08:06:13 AM

I have an IBM Thinkpad T40 laptop and have a problem with the USB ports.

Up until about a week ago I had no problems, both my DVD writer and Memory card reader worked at USB 2.0 speed, with no warning messages.

Then some windows updates were installed and I occassionally got a pop-up message saying that I had plugged a "Hi-Speed device into a low-speed port...".  

Since then the pop-up has become more and more frequent and now happens nearly every time.

Sometimes it will take a couple of minutes to decide this and if I set a DVD recording before it gives me this message then it will happen at full speed with no problems.  However, a few minutes after it has finished then Windows will finally figure it out and slow the port down.

When I click on the warning message bubble it tells me that there are high speed USB ports installed and that I should remove the device and plug it into one of the high speed ports, which it highlights in bold.

I only have two ports, although it shows 4 in device manager, and both ports are suffering from this problem.

I get this message with both the DVD recorder and the Card reader, so I assume it's not the devices themselves.

I find this really confusing, does anyone have any ideas of what I can do?

Any help would be appreciated,

Thanks.

Title: USB Hi-speed port stopped working in Hi-speed
Post by: shaker on October 26, 2004, 06:36:29 PM

I have the exact same problem.  Haven't found a solution.  I'll post one if I do.  Please let me know if you figure anything out.

Title: USB Hi-speed port stopped working in Hi-speed
Post by: kevynm on November 05, 2004, 07:55:34 PM

I had the same problem some time back.
Then i loaded the s/w for my new digi-cam and hey presto they msg dissappeared. Try loadingsome s/w which uses the hi=speeed USB 2.0.
Hope this works

Title: USB Hi-speed port stopped working in Hi-speed
Post by: Guest_shaker_* on February 23, 2005, 12:56:29 AM

Hi again.  I began having other general hardware problems, so had the motherboard replaced.  That fixed my USB problem as well (the USB components are on the motherboard, I think).  Drastic perhaps to do this just for the USB problem, but it did tell me the USB problem was in the hardware.  I have a T40.  Good luck!