a) Fix Clear CMOS bug
b) Fix Memory timing setup
c) Fix Memory boost
d) Added ES(QS) CPU microcode

XLZ-C612-EXT.ROM
For E5-26xxV3 CPU Only
a) Turbo Boost with UV -100mV -50mV
(Warning!!! If you do not have a programmer or you are unsure of the ability of your CPU to operate at -100mV, don't use this BIOS)

XLZ-C612-STD.ROM
For All E5-16(26)xxV3(V4) CPU
Default settings