Hi guys, I've tried so many things over the past three years to get these fans to stop constantly spinning at 6000rpm from the minute I open the lid until 5 seconds after I close it. Both fans are working and both run at 6000rpm. The temperature reads normal. The body gets very hot after the fans have been running for awhile but it isnt hot to begin with. There are no print jobs in the queue as has been the problem for some people. I have reset the pram and smc many times. I looked in terminal to see the top processes with top -u -s3 and there is nothing that stands out. In activity monitor I find the same. I recently have again become annoyed enough with this to try to find a solution. This morning I unplugged external drives and USB hubs as well as my audio interface and unplugged the power source. I was able to kill the fan noise when I force quit Firefox. I realized that I have 10 tabs that I always keep open if not more. I thought that must've been the problem. But after plugging the computer back into power without starting Firefox, the fans ramp up to 6000 immediately. I plugged into a different power source after getting fan speed back down by unplugging, putting the computer to sleep and then waking up. It is able to sometimes come back from sleep and not have fans go to 6000 but it seems like only when the power source is disconnected. I have tried two different sources and both of them cause the fans to speed up. With the power source unplugged, the fans are still audible but they are only running at around 3000rpm. Once I start Chrome or Firefox, they immediately ramp up to 6000. Once I quit, they slowly drop back down to barely audible levels. The temp reads below 40 degrees during this whole scenario. The CPU load is 97% idle or more and fans never operate at less than 2500. My friend suggested replacing the PRAM battery so I'm going to do that even though the clock stayed set when I removed the laptop battery and power source. I'm willing to try anything at this point. Does anyone have any suggestions? The noise really makes this computer terrible to use and unsellable.