Quote Originally Posted by JWilson View Post
When I check C0010015 with the TBL-Fix enabled, the 1st byte is a 1h. If I try to write a 9h to the 1st byte, the system reboots. If I write a 8h, then it works fine, and then reading the 1st byte then shows 9h(8h+1h ) I guess the 8h is masking the 1st bit.....

(I don't remember the whole double word, so I used just the 1st byte)
Strange, I looked into the Amd BKDG what bit #1 does and it has todo with SMM configuration registers. Don't know much about SMM mode.