When I enter BIOS setup, it shows ME version - N/A. All programs using MEI, don't work - MEI driver, Intel Firmware update etc. The motherboard start is very slow. Still in Windows 7 64 bit device manager doesn't show any undefined devices. Changing AMT configuration is useless. I updated BIOS to the last version - no change. What can You advice. Is it a result of a BIOS corruption in some protected area or a corrupted chipset?