Corsair TWIN2X2048-8500C5 2GB Kit
 

Overclocked, these modules can run up to 1162MHz (DDR2-1162) or better even at default voltages. If synchronicity is what you're aiming for to experience the full potential of your system, then look no further. At these speeds, you have just turned your PC2-8500 investment into PC2-9300 modules.