Recently I was imaging some Dell E5520s with the K2000 box when I encountered a rather strange error. They would PXE boot fine, but after I chose a KBE to use they would begin to load it and then the computer would restart rather suddenly without error. Rather frustrated I began researching and found this article . After I flashed the BIOS back to A07 the machines booted fine. So, as a warning to all those with the K2000 (or anyone that uses PXE for that matter), I wouldn't recommend this particular upgrade. Yet another Dell BIOS version to beware of.