ASUS P5Q BIOS build 0901
ASUS P5Q-E BIOS build 0901
ASUS P5Q PRO BIOS build 0901

P5Q series include CPU temperature readout fix, new bootblock, E0 stepping patches (GTL/vNB), improved ASUS CrashFree, USB driving, some RAM kits compatibility improved and many minor changes :-)