Thats the number 5.
Here are all the successful settings for my Tbred so far (A7N8X)
166 - 177 X 11
166 - 170 x 11.5
166 - 186 x 10.5
166 - 196 x 10
Highest vcore is 1.7V and all FSbs work OK except some cold boot problems.
I run Crucial PC2100 at 2.7 volts and get 2996/2775 Sandra
What T-Bred you got A or B and 1700 / 1800 etc?
9.5x200 would be nice?