After install of windows 8.1 on a asus cm6870, and the updating to the asus 8.1 chipset, I suddenly have no driver loaded for the Intel® 7 Series/C216 Chipset Family SMBus Host Controller - 1E22. In device manager under events it says driver installed and configured but when driver details it says no driver is installed... Also Xeon® processor E3-1200 v2/3rd Gen Core processor DRAM Controller - 0150
under driver details it says no driver but in events is say driver installed, driver configured and driver started. It says this device is working properly. I believe after install they both had drivers and all normal. How Can I reset all chipset drivers?? Maybe need to go with aus windows 7 or 8 chipset utility because the 8.1 chipset utility I used was from the non OEM motherboard Asus p8h77m Pro. AsusTek told me it would work. What can I do. It would be nice if I could just fix the two items as the computer is working prett good and installed with UEFI bios with secure boot. Using IDE hard drive mode instead of AHCI seems to be working better and hard drive controllers are installed good with 8.1 drivers from asus chipset utility.