My best recommendation is to start doing the BIOS update one by one in ascendant order to the latest version. Jumping some BIOS updates can brick the chipset since every BIOS update contains many changes for the system.
Thanks for your reply.
I updated to Version 48 as recommended and then to 99 as it was mandatory. Till Bios Ver 48 everything was normal and problem started only in Ver 99. I am not able to do anything. Please help me to recover my Motherboard to normal operation.