Bios Mods -The Best BIOS Update and Modification Source

I would like to install an LGA771 Xeon L5420 into a Fujitsu Esprimo P5731(T) computer. I tried this first: http://support.ts.fujitsu.com/indexdownl...BCC25BBAA7 , but the computer doesn't post anything with Xeon CPU. Are there any chance to work with L5420?

Post a screenshot of third (Mainboard) tab of CPU-Z.
And tell S-Spec of your L5420.

Here is the link of the BIOS file: https://www.dropbox.com/sh/fqn94pmp6cpfu...5jBVa?dl=0, Here is the link of the required CPU: http://ark.intel.com/products/33929/Inte...33-MHz-FSB
XEON L5420 CPU S-Spec: SLBBR

Your motherboard is based on Q43. It doesn't support Xeon 5x00 series.
P.S. How to Find Your Processor sSpec Number