Macbook pro fans go from all the way off to all the way on?
Hi!
My Macbook pro's fans go from all the way off then to all the way on... there is no middle... This only seems to have happened after I upgraded to Lion.
I tryed reseting the SMC already to no avail...
Any help? Please??
Backup your user file folders to a external drive and disconnect.
Hold c and boot off the 10.6.x installer disk,
use Disk Utility to erase your entire drive (select the drive makers name) and format HFS+ Journaled,
quit and install 10.6, use the same hard drive name and user name as before,
log in, Software Update, restore programs from fresh sources,
return your files into their respective folders.
Carbon Copy Cloner your new fresh install to the external drive, it's hold the option key bootable.
Wait on Snow for aother 6 months, then clone again and disconnect, give Lion another whirl by holding option while clicking on Purchases in MacAppStore to download the installer again.
If you want to make "hold c" boot DVD's of Lion and Snow Leopard disks follow these links.
http://eggfreckles.net/notes/burning-a-lion-boot-disc/
http://www.walterjessen.com/make-a-bootable-backup-snow-leopard-install-disc/
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Retina MacBook Pro fan very loud and usb mouse disconnecting when restarting the computer
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So first of all, when I play World of Warcraft, the fan seems to go up to 6000rpm and is very loud. I checked the activity monitor and it says WoW is using about 60% CPU, so it shouldn't have to be that loud. I also installed smcfancontrol, but it doesn't seem to lower the speed of the fan.
I ran an apple diagnostics test and it couldn't find any problems, and I also tried resetting my smc, but the fan is still going very loud.
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Try reading this, then go to the section on Resetting the SMC for a Macbook Pro with a battery you should not remove.
http://support.apple.com/kb/HT3964 -
Macbook Pro Fans Just Went Spinning Nuts
Hi.
So I'm surfing the web (using firefox) have 2 tabs open and suddenly the fans on my macbook pro start to spin faster. Then they spin faster gain finally maxing out at 5360 rpm. The temperature all the time was never above 55 degress C. They spun at 5360 rpm for about 10 minutes and then spun down to a normal level of 3154 rpm.
I checked the processes and some kernal task is up at the top using 1.84 GB of virtual memory. No other programs running but plenty of other tasks listed as sleeping.
First question ... what is the max rpm that the fans should safely spin at?
Second question ... why would it suddenly take off like that spinning fans when there's only one program running?
I had an alienware before and it started running its fans like that after a few months ownership ... a few months later it chew the hard disk and lost a lot of data on me.The maximum RPM for the MacBook Pro fans is 6000rpm.
I have no idea why the fans would suddenly "take off" like that but try running the Apple Hardware test. You can do this by inserting your original install disk 1, restart the computer with the D key held down until the hardware test starts loading. Once the test has loaded select the option to perform extended testing and then start the test. Note down any error codes and post them here.
Note that when you load the hardware test up the mouse will be very jittery and the computer will appear to freeze during the test, I have encountered this on all the tests I have run and consider it normal behaviour.
Hope this helps
J.C -
Macbook pro fan always on... and I've read all the threads.
Have read countless threads, but still no definitive answer that i've been able to understand: MBP fan runs constantly with CPU load very low. i NEVER have a high CPU load when i look at activity monitor--(the highest CPU load when i look there is usually activity monitor itself!)
i am running 10.8.4 on a 15" MBP 2.53 core 2 duo early 2009. when i'm running relatively simple processes--listening to music, pages, keynote, google searches online -- fans run almost all the time and surface of laptop is hot. by comparison, i have a business MBP that is configured similar to this one--it's also a 15" 2.53 but an i5 -- it has less RAM than mine, but the fan almost never comes on, even when i run a bumch of stuff to TRY and make it come on.
any help out there?1. Reset the SMC. Don't know which type battery your macbook has so both procedures are below.
2. Download and install iStatPro http://www.apple.com/downloads/dashboard/status/istatpro.html so thatyou can actually monitor your temps and fan speeds.
MacBook and MacBook Pro
Laptops with a battery you can remove
Shut down the computer.
Disconnect the MagSafe power adapter from the computer, if it's connected.
Remove the battery.
Press and hold the power button for 5 seconds.
Release the power button.
Reconnect the battery and MagSafe power adapter.
Press the power button to turn on the computer.
Newer Mac portables with a battery you don't remove
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC. -
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But it would be a mistake to simply put the old HD in the new computer.
These are the steps:
Remove Hard drive from faulty computer. (very easy on Unibody MBPs, do-able but not so easy on older MBPs)
Put it in a cheap enclosure
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Message was edited by: Mike Boreham...added sec on line -
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How to create an OS X 10.8 Mountain Lion install drive | MacFixIt - CNET Reviews
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Mac OS X keyboard shortcuts
Control-F4
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Shift-Control-F4
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By the way... since you are new to Mac, click a clear space on your Desktop. You should see "Finder" top left corner of the screen in the menu bar.
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Step Four: New Hard Drive Preparation
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return to the Erase window.
6. Click on the Erase button. The format process can take up to several
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4. Check the box labeled Erase destination.
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BigTex415,
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