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USB delayed write failure / external HD / Xplorer2

Hello,

  I'm running WinXP SP2 on Fujitsu N-Series laptop.

Using a Windows Explorer alternative Xplorer2.

On numerous occasions after copy\move files from\to external HDs I've recieved a delayed write failure error message afterwhich the drive is no longer accessible.

In some cases the drives showed up in Disk Manager showing healthy but niether in Xplorer2 nor under My Computer. On other occasions the drives not even in Disk Manager.

This has happened on everything from a 20GB to 400GB HD using 2 different
EIDE to USB converters as well as an USB external case.

Thinking it was Xplorer2 I searched thier forums to no avail. Nor any help through Google.

Any idea why this is happening ???

Also on 1 occassion the external USB case actually turned itself off.

All USB converters have thier own power supplies.

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formicaJones
Asked:
formicaJones
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1 Solution
 
joshmdillCommented:
Sounds like the USB root hub in your laptop may be the problem.  Do you use any other USB-connected devices on this computer?  Printers, scanners, etc. ?  Do you know if the USB controller is USB2.0?  I'd check Fujitsu for an updated driver for your USB controller as well.  Considering you've tried multiple drives and multiple external cases, I seem to think the problem is not the external devices, but rather the connection.
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formicaJonesAuthor Commented:
Hello joshmdill,

    The only other usb device was track-ball mouse. I assume you mean the USB controller on the adapters and external cases? Atleast 2 are 2.0. I'd already updated all avaliable drivers on fujitsu site.

 After the delayed write error I connected the drives to a desktop and was having same troubles.
Is it possible for a USB controller to corrupt a hard drive?

This problems happened both while 2 external drives  and while a single drive where connected.
It mostly happens with 3.5" self-powered USB connections. I've connected serveral 2.5" with USB power and it's only happened once. They seem to be more stable.

I'm wondering if it might have something to do with the 2.5" drives slower speeds...?


Is it possible it could be a software issue?

 
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formicaJonesAuthor Commented:
Oh, and not sure if this is related but after using an online drivers scanner (forgot the name) it showed I was missing a few drivers. One that might be relavent was labeled something like USB to PCI or similar.

I didn't attempt to download considering it was a paysite and I didn't think laptops used PCI.
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formicaJonesAuthor Commented:
Sorry for not fitting this into one e-mail....

Also under Device Manager there's ?-marks next to following...

Ethernet Controller ( I don't plan on using so didn't instal driver)
PCI Modem    (ditto)
Unknown Device

Any possiblilty these whould have any affect on USB controller?
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