Re: USB 2.0 problems

Richard,

Thanks for the stats. In this case as per your report, hardware and user is
the cause.

My inquiry below are as follows:

1.) In the case of incorrect jumpers on HD drives put on cases, What should
be the jumper setting in these usb devices. Also, as I am using these kinds
of HD drives (2 x 80 GB HD), will re-formatting/re-partitioning these will
solve the problem?
2.) As I have 3 USB 2.0 ports in my laptop, 2 are working as USB 1.1 and one
doesn't detect a USB device (Unknown device pop-up or advice), Is also a
hardware related problem? As I am hoping its not, but of course I'm posting
this to consult.


Daugg


"Richard Urban" wrote:

>
> "Daugg" <Daugg@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:CA1399CE-FAB9-4C4E-AEBD-744CEAFDF0F2@xxxxxxxxxxxxxxxx
> > I've been reading lots of messages regarding below problems:
> >
> > 1.) USB 2.0 devices connecting as USB 1.1 on USB 2.0 ports
> > 2.) USB 2.0 devices not being detected on USB ports
> >
> > These problems are affecting me too, and I don't believe its a hardware
> > problem. This just happened when XP SP2 was installed.
> >
> > Comments/newsgroups/questions should be reviewed as you will see that this
> > problem is common and becoming widespread.
> >
> > Can anybody tell what's happening? For I also want to know the cause and
> > of
> > course the solution as this renders my USB ports inop or slow.
>
>
> *********************************
>
>
> According to my records I have repaired 67 computers/drives since June 1,
> 2005 that were brought to me with USB 2.0 problems. Here is the breakdown of
> what I have found:
>
> 51 problems with external cases when the customer put their own drive in an
> external case. These break down as follows:
>
> a. 9 defective hard drives that people put into external cases
>
> b. 10 instances of incorrect jumpers on drives in external cases
>
> c. 7 external cases with defective power supplies
>
> d. 8 instances where people were trying to use the external case without
> the necessary plug-in power supply
>
> e. 7 defective USB cables
>
> f. 10 drives that were not partitioned or formatted
>
>
>
> 14 problems with name brand manufacturered external drives (Maxtor, W.D.
> Seagate etc)
>
> a. 1 defective hard drive
>
> b. 12 drives that were not partitioned or formatted
>
> c. 1 defective USB cable
>
> 2 problems with operating system
>
> a. The correct driver for the device was not installed
>
>
> Unless I am seeing a highly unusual cut of defects I would have to say that
> about 95% of the USB problems are hardware related and that most of these
> are user initiated.
>
>
> --
>
>
> Regards,
>
> Richard Urban
> Microsoft MVP Windows Shell/User
>
> Quote from George Ankner:
> If you knew as much as you think you know,
> You would realize that you don't know what you thought you knew!
>
>
>
.

Relevant Pages

  • Re: How can you get a Seagate USB 160 GB drive to mount?
    ... No desktop icon, no mount. ... Mount removable drives when hot-plugged ... Aug 12 16:32:35 poirot kernel: usb 1-2: new full speed USB device using ohci_hcd and address 6 ... hardware sectors ...
    (Fedora)
  • Re: How can you get a Seagate USB 160 GB drive to mount?
    ... No desktop icon, no mount. ... Mount removable drives when hot-plugged ... Aug 12 16:32:35 poirot kernel: usb 1-2: new full speed USB device using ohci_hcd and address 6 ... hardware sectors ...
    (Fedora)
  • Re: How can you get a Seagate USB 160 GB drive to mount?
    ... No desktop icon, no mount. ... Mount removable drives when hot-plugged ... Aug 12 16:32:35 poirot kernel: usb 1-2: new full speed USB device using ohci_hcd and address 6 ... hardware sectors ...
    (Fedora)
  • Re: USB - Safely Remove Hardware utility
    ... Safely Remove Hardware application as explained later to ensure a safe removal of hardware from the system. ... To reduce the likelihood of data loss or corruption as a result of surprise removal of consumer-oriented storage devices, Windows XP Professional disables write caching by default for these devices (such as cameras that include IEEE 1394 or USB storage, small form factor storage devices such as compact flash, and so on). ... He commented that I should be using the SRH utility "because he had burned up a USB pen drive by *not* using it". ... I have several of those drives and have never had an issue... ...
    (microsoft.public.windowsxp.general)
  • Re: USB 2.0 problems
    ... USB 2.0 devices not being detected on USB ports ... > course the solution as this renders my USB ports inop or slow. ... 10 instances of incorrect jumpers on drives in external cases ... Unless I am seeing a highly unusual cut of defects I would have to say that ...
    (microsoft.public.windowsxp.general)
Loading