I've discovered that my memory performs quite a bit better when I run my NB at 2500MHz compared to 2000MHz. In the AIDA64 memory benchmark, there's an improvement across the board in all areas, and not just in my memory, in my L1, L2 and L3 caches too. The problem is the system goes unstable when the NB is set to 2500MHz. What should I change? I can change CPU voltage, memory voltage, NB voltage and CPU NB voltage. For now, I've dropped the HT link speed down to 2000MHz while keeping the NB clock at 2500MHz to see if maybe the HT link went unstable. Specs to the left.