* 2.53GHz or 2.66GHz Intel Core 2 Duo processor with 3MB on-chip shared L2 cache running 1:1 with processor speed; or 2.8GHz or 3.06GHz Intel Core 2 Duo processor with 6MB shared L2 cache  * 1066MHz frontside bus  * 4GB (two 2GB SO-DIMMs) of 1066MHz DDR3 memory; two SO-DIMM slots support up to 8GB