Quote Originally Posted by FELIX View Post
Here is how these value are calculated by the chipsets:

Write to Precharge = Cas - 1 +BL/2 + tWR.
Write to read command = Cas - 1 +BL/2 + tWTR.
BL(Burst Lenght) practically always 8.
tWR(Write recovery time) is 3 for ddr or ddr2/400 and 4 for ddr2/533, 5 for ddr2/667-800.It's can vary.

For example, If your have ddr2/533 and your Cas latency is 4,Write Precharge = 4 - 1 + (8/4) + 4 = 11.
should it be 4-1+(8/2)+4=11