Corsair XMS Cas Problem

[Blue Cypher]

Hello everyone, I have got an asus A8N 32 Delux mobo and corsair XMS 3200Cpro latency 2-3-3-6. My motherboard is set to auto detect and its picking up the RAM as cas3 rather than cas2 which it should be, I can manually change the settings but was concerned as whethe to leave it or change it to cas2?

Does anyone have any experience with this problem?

Thx in advance

 

[Blue Cypher]

did manually change it, benchmarked it on 3dmark 06 set as auto, and then again manual (auto= cas 3 , manualy= cas2) and found no difference.