Well, not sure if this is actually a problem or not...but I notice that when my PC is idling, or not using much resources, my ACF7 will either not spin at all, or only occasionally spin. Is this normal for this HS? Because my e6750 is idling at around 30*C. PC's been running fine for about a week with this, and wasn't sure if I should be concerned or not? The fan does function underload/on boot up though, and it shows my CPU is at 27*C in BIOS. Thanks for the help guys, I appreciate it.