There is a BIOS update for anyone running a
M3A78-T BIOS 0802
01. Support ACC for AM2+ 45nm CPU
02. Fix the problem that the system may show boot fail message if ACC enabled.
03. Fix the problem that AM2 CPU Vcore voltage may be incorrect if change CPU voltage in AI Suite.
04. Improve the system performance when use certain CPU.
05. Support new CPUs. Please refer to our website at:
http://support.asus.com/cpusupport/cpusupport.aspx
(ACC is a overclock technique which can adjust the voltage and frequency for AMD CPU directly under OS)