Always Ctrl + F1 for advanced options.
Drop your HT link to 4x
Lock your PCIe to 100MHz
Drop your memory ratio from 400 to 333
This should give you the 'headroom' to raise the system clock (CPU Freq) up to as high as 240MHz-250MHz if the MB can take it (and you have adequate cooling). It is best to keep your HT link speed at 1000MHz or less. The general rule of thumb is as long as it is faster than your RAMs speed you will not see a substantial decline in memory performance.
With the clock at 240MHz your RAMs will be running 240x3.33, or 800MHz. Your HT link speed will be 4x240, or 960MHz. See how that works? Everything is tied to the system clock so you must drop back your memory divider and HT link speed to keep them within spec.
If the CPU multiplier is unlocked (as with the X2 7750 Kuma) you must disable C&Q to raise the multi above stock. If you are using the system clock to OC it is not really necessary to disable C&Q, though some folks feel that shutting it down helps for a more stable overclock.