After much pain and suffering trying to get HDD USB2.0 Enclosures to work (as essential back-up devices) I think I have to accept the following conclusion… Beware of this lethal combination. Nvidia Nforce2 Motherboards, MS WindowsXP (including SP1) and USB2.0 devices containing the Genesys Logic GL811 chip. After much trawling for Drivers, Bios and Windows updates I finally came across this review of a HDD enclosure which sums up all my problems and probably those of many other suffers wondering why they cant get their device to work at USB2.0 speeds (if at all). "I ran into a major issue with this enclosure when I went to test it. It seems that the controller chip it is based upon (Genesys Logic GL811) conflicts with the USB 2.0 controller on my nForce2 motherboard. After some extensive research, much hair pulling, and a couple of late nights I was able to come to this conclusion. Even though this chip is supposed to be “highly compatible” it does not work with the onboard USB 2.0 controller on all nForce2 motherboards. What happens is the device recognizes fine, the drivers install properly and the drive shows up in my computer, but when you try and transfer data to it the device will disconnect. To be more specific, files under 20MB will transfer fine to the drive, but anything over 20MB will cause the device to say it cannot find the source file and disconnect. When this occurs though, strangely, the EHD-350 still shows activity occurring, even though nothing is being copied or written. In order to get the drive to show up again you have to disconnect it from the power source and the USB cable (which according to the manual is a big no-no when the activity light is on because your hard drive could be damaged) then wait a few moments and reconnect it. Let me tell you that it was a big and I mean big hassle. In order to get around this I had to use my USB 1.1 hub. Using the drive at USB 1.1 speed and transferring data is not very fun, especially large amounts of data. The problem continued on even after I purchased an add-on USB 2.0 card. With the add-on card the device would not recognize as a USB 2.0 device. So I ended up having to give up on the nForce2 and try it on the Asus P4GE-VM board with a Pentium 4 2.4GHz processor. As soon as I plugged in the EHD-350 it recognized properly, and ran at USB 2.0 speeds. " If you have a similar problem the ONLY way you’ll get this lot to work together is to change the BIOS to USB 1 and move back into the slow lane! I wish the above wasn’t true and if anyone has found a miracle solution I’d be glad to hear it because I don’t want to change either my MB or HDD enclosures. They all cost hard earned cash.

That is a bummer. Have you tried Emailing nvidia about this problem?

I found out about this on this link... http://hardwareanalysis.com/content/topic/11829/ The Italian guy says Nvidia don't wont to know!

Looked at the thread you reference. Looks like XP is the bigger problem. Just another reason I am staying with my 98/2000 dual boot. I was planning on getting an external USB harddrive. Thanks for the heads up. I also have been preaching the nForce2 chipset MBs. From the board you linked to it doesn't really point to nvidia, rather XP. Have you tried a different OS with your nForce2 MB, external drive combination?

I haven't tried Win98SE. Only just made the move to XP!!!

To prove the point I've just tried the enclosure on a colleagues machine with WinXP (SP1) and an Intel chipset Motherboard with USB 2.0. It moved 4.0Gb of photos in about 3 minutes, no problem.

I don't doubt what you are saying. It's just that there were alot of folks complaining about this problem on the site you linked and the one common problem was winXP. I suppose all those folks could have nForce2 MBs, but I don't know. If there is a problem with more than one flavor of chipset, then I would say it may be the fault of MSoft.