Hey spoooon, I haven't cracked my case, so I had to guess. There are two settings for each divider. Set it to one of the settings for the divider you are trying to achieve, and if it boots into Windows you picked the right one. If it doesn't work or when you get into Windows you check WCPUID and it says your cache is still at 1/2, then try the other. The only other way is to take off the backplate I believe. Can you see any marks on your L2 cache chips now? I know Sandra will always display the default divider, even when you change it. Only WCPUID will tell you for sure...Good luck..