How's it Goin SYSTEM MANANGEMENT BUS was giving me trouble with my Gigabyte GA-7DXE But this is not a mainboard problem this is a display driver that is not loading from our Graphics Card supplied with our 64mb kickass Graphics cards. WHAT I did was install everything then go into system information and checked out my components to see where the trouble was this is how I determined that the problem was a DISPLAY DRIVER I returned to my trusty CD and then proceded to Physically try to install from the control panel/system/device mananger/select a location/and here I selected every folder on the blastered CD till I found the required Driver and a tip it was very close to the end that I found the driver required. It is important to take the time and locate this driver as your computer wont be running properly without it HAPPY HUNTING. VIA TECH POWER MANANGEMENT POWER CONTROLLER is the device the driver runs I was looking for DAMN I have two more to find now ~ Mabye not as this mainboard has some features missing so all is well in the device mamamger. PATIENTS lolol.