What SMC Fan Control and similar software allows you to do is put a new Floor under the fan speeds. Press the power button to start up the computer. The power supply fans were designed by a different team, and may not have the same controls. Note: Ensure the power button is not pressed when connecting the AC power cord or all fans will run fast.ĥ. Plug the power cord back in, making sure the power button is not being pressed at the 2.1 Case fan 2.2 PSU fan 2.3 CPU fan 2.4 Graphics card fan 2.5 Chipset fan 2.6 Hard drive cooling 2.7 Multiple. From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).Ĥ. If the computer still exhibits these types of issues after you’ve restarted the computer, try resetting the SMC by removing AC power:ġ. Resetting the SMC can resolve some computer issues such as not starting up, not displaying video, sleep issues, fan noise issues, and so forth. Force Shut Down (press the power button for 10 seconds) If the computer isn’t responding, perform these steps one at a time, in the following order, until the issue has been resolved:ģ.
Free hard drive space is like fuel for your processor. Release the keys, wait a few seconds, and turn on your Mac. You may turn on and off during the process. Then press the power button and hold all four keys for another 7 seconds.
Resetting the SMC will not resolve issues in which the computer is unresponsive-in these situations, restarting the computer will generally suffice. Press and hold Control-Option-Shift for 7 seconds. HOW TO USE MAC FAN CONTROL Download MacFanControl application. Note that resetting the SMC does not reset the PRAM. It is also recommended that the SMC be reset after a backplane board or processor board is replaced as part of a repair.
I did do a software update over the past 24 hours or so, but I can't say that it occurred immediately after that. It can't be a dust issue, as the machine is only 2 days old (and I peeked inside anyway just to be sure- clean). I took a look at it with the side cover off, and it seems to be the fan near the top middle, between the power supply and the disk drive. I tried powering it off & letting it cool down for a few minutes to no avail about 10 seconds after powering up, the box gets loud again. DEWALT 24 Heavy Duty Drum Fan Up to 6500 CFM Low Noise: 60 DBA 12-foot Power Cord 8 Rubber Pnuematic Wheels for Easy Movement 5 Amp Fuse in Plug for. But now that that's done, Activity Monitor shows a virtually idle CPU there's nothing running that ought to be causing this, as far as I can tell. It's not just a "little" loud- my wife walked into the room and asked what the noise was.Īt first I thought this was just because I was hitting the CPU a bit (importing my iPhone library into iLife '09, and running Eclipse). Then on day two, for some reason it started running very loudly. Initially, I was impressed with how quiet it was compared to my older Macbook Pro. My Quad-Core Mac Pro tower is two days old.