Greetings Folks..
I have two R610's, one of which sounds like an airplane and the other is as quiet as a normal desktop.
The quiet system runs (idle) at 24C, with fan speeds between 3000 and 4560 rpm.
The loud system runs (idle) at 18C with most of the fans around 7080rpm.
Both systems are using the latest versions of firmware and bios.
The quiet one has dual X5570 @ 2.93Ghz and the other has dual X5677 @ 3.47Ghz
My question is, would this difference in CPU make such a big difference when it comes to fan speed?