Dell Precision 670 CPU Upgrade

Just wanted to share the success of a Precision 670 CPU upgrade:

The CPUs that were in the tower were two SL7ZF Intel Xeon processors at 3 Ghz, 2 MB cache @ 800 Mhz.

The CPUs that replaced the SL7ZFs were two Xeon SL7ZB Intel Xeon processors at 3.8 Ghz, 2 MB cache @ 800 Mhz.

Not quite sure if the previous owner put in the two 3 Ghz processors but I decided I wanted to max it out at the 3.8 Ghz anyways.

Here is a comparison of the two from Intel:

http://ark.intel.com/compare/27094,27091

The processor RAM is running at 400 Mhz I believe so I'm hoping that someone could post here RAM that runs at 800 Mhz.

It needs to be dual-rank RAM.