I have a Dell precision T5500 workstation as my personal computer, it has 2 Xeon W5590's in it that are 3.33GHZ per processor. It also has 72 gigs of ddr3 ecc 10600 ram in it, 2 evga 780's in sli mode, and two 1 terabyte ssd's for the hard drives in raid. The issue I am having is the bios, it will let me load any bois version from A1-A9. Anything past that it just keeps restarting over and over. I have tried flashing from dos, ubuntu, and the win exe files, and no luck. The current bios update for the machine is A16 although I am running version A9. I need to get atleast version A15 loaded to fix my ram timimgs, to get the full memory configuration out of it. A15 is the bios update to fix the timings for my second cpu. Any ideas why it will take bios updates 1-9, and not the rest? any ideas I would be most grateful. Thanks!!!