Where can i find the sm bus controller driver. had to reload and can't find that driver. vista 32-bit. vista 64-bit. xp 32-bit tried to click link and it just took me to the home page. does anyone have the drivers for the sm bus controller and unknown device (acpilen00685&2890d699&0) for the t520 xp? so frustrating.. Hi all, i'm hoping someone can help me out. i just installed a fresh copy of windows 7 64 bit on a thinkpad t400 4236 and i'm missing the sm bus controller driver.. Note: smbus is the system management bus used in personal computers and servers for low-speed, system management communications. a smbus controller is integrated into most intel
