i have 2 arctic pwm sharing fans hooked in synchronism for cpu cooling, and another 3 hooked together for case cooling I note that the case fans are running much slower than the cpu fans, which i beleive because the airflow exit fan is running slower than the cpu fan is building up heat within the case determinable with easily with fingers, what is the effect of these fans chained together on their rpm, do many together lower the overall rpm of the fan chain ? or is that determined by the motherboard and how is reacts to load of one 4pin header i ideally want the 3 fan pwm chain of fans running faster than the cpu fan.