USB 2.0 Hard Drive Problems

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I thought it was my NSLU2 that was the problem, but now when I try to use my USB 2.0 Hard Drive against Windows XP, I get delayed write failed. Here’s the diagnostic from “viaarena”:http://forums.viaarena.com/messageview.cfm?catid=16&threadid=50469
_I tried the same thing with a Maxtor complete system and it didn’t fail, so this probably means the el cheapo enclosure I bought really isn’t compatible. Sigh. Sorry to blame it all on the NSLU2. It is really that the NSLU2 just has lousy diagnostics and just fails, but the problem seems to be the drive_
The problem concerns copying files to or from a Sarotech Hard Box FHD-353 using the original USB 2.0 cable provided (_note this happens to me and seems to be non-USB enclosure specific). The Hard Box has a 120GB Maxtor hard disk inside. I can open any video file on the hard disk with no problems in Windows Media Player 9. I can also copy relatively small files, even lots of files, say, below 400 MB in size.
However, as soon as try to I copy large video files (about 600MB) from it to an internal hard disk, a message appears telling me that the file cannot be read. After that files can neither be opened nor read from it and the red light on the box is on continuously. The same error occurs when I try to use the disk defragmenter on it. _sounds familiar and I have the same problem_
Now when I connect the USB cable from the Hard Box to a USB 1.1 hub and then connect this hub to the PC, copying proceeds smoothly, although the speed is extremely slow.
After I have set the USB drive to Logical instead of Primary (you can use Partition Magic 8.0 to do this), copying is error-free using the USB 2.0 cable. Now the only problem I have is defrag. I still get the “Windows delayed write failed” error whenever I try to defrag it. I need help/advice to fix this.
The other thing is that in System – Hardware – Device Manager – Policies, Optimize for quick removal has to be selected. This disables write caching so that the drive can be disconnected without having to use the Safe Removal icon.
I was advised to purchase a NEC PCI USB 2.0 Enhanced Controller card. There appears to be some compatibility issues with enhanced USB 2.0 that is not based on the Intel or NEC chipset.
I was advised to purchase a NEC PCI USB 2.0 Enhanced Controller card. There appears to be some compatibility issues with enhanced USB 2.0 that is not based on the Intel or NEC chipset.

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