I only have one 3 pin connector and no other connector so I have to chose. If I use the case fan it will be 2 inches apart from the cpu(the fan would be directed to the cpu) and should provide enough ventilation for the case.(this is how it was already)I am now upgrading to a AMD Athlon 64 X2 5600 Brisbane 2.9GHz 2 x 512KB L2 Cache Socket AM2 65W Processor and IDK if I should use the sole connector for a CPU cooler instead. Do you think I should use the only connector for a case fan as it was originally setup or should I use it for a CPU cooling fan?