Upgrading windows XP to Vista

I was trying to upgrade few windows XP boxes with the new Vista Business premium. I was using the dell boxes for it. I tried a couple of them and it did not worked as expected. I first upgraded windows XP with vista...it took about 2 hrs to do that. Everything went well till the last phase of the upgrade. After the last phase the computer get restarted and then the next time it booted...it was looking to do some repairing...and that repairing went on and on and on...and forever.....Till this point i don't know what's wrong but...it does not seems to work. Lastly, I installed a clean Vista.

Hyper-V support in Dell Server

I was doing some research on Hyper-V. Actually I was looking if the Dell servers we have are compatible with the Microsoft's Hyper-V. I found that only a few of Dell servers are designed to support Hyper-V. Here is the complete list from the Dell website.

Thanks.