I recently bought a new Dell D630. I maxed out the memory (a mere 4GB). I wanted to be able take advantage of all that memory so I installed Vista Ultimate 64-bit. When I rebooted I got this nasty bluescreen before Windows started. After much dismay and very little help from Dell, my good pal and co-worker Brian found the answer. Since Brian doesn't have a blog I thought I would post it here.
The solution is pretty simple. Just install the latest Intel Turbo Memory drivers. They can be found here under the SATA drives section.