Whats wrong with you're current ram what CL is it ? as u can just add a block or 3 to that ? tahts why I suggested a low CL ram for yourself as you wont be overclocking.Column Address Strobe (CAS) latency, or CL, is the delay time between the moment a memory controller tells the memory module to access a particular memory column on a RAM module, and the moment the data from the given array location is available on the module's output pins. In general, the lower the CAS latency, the better.