MacBook Pro fans stay on strong and loud

I have had my MacBook pro for a year or two and never had this happen. Fans are staying on strong and loud for no aparen reason (just sitting on a wood table in a 68º F room as usual). A full shut down and restart did not fix the issue. A permissions repair and disk repair did not fix the issue. Any ideas?

Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
If this isn't the issue, then perhaps there has been a hardware failure or sensor failure. You can see if this helps: Intel-based Macs: Resetting the System Management Controller (SMC). If it does not then take it in for service.

Similar Messages

MacBook Pro fans stay on, very loud

Today the fans on my MacBook Pro started being on all the time. Sounds loud. This has never happened before. I've had it about two years. The fans start up the moment I turn the power on. I have tried: Shutting down, leaving it off for a few minutes, then starting up again several times. Activity monitor shows System is using about 1% and user is using about 12% of CPU capacity. I repaired permissions, verified hard drive and checked for viruses using Sophos. What is cauising the fans to stay on and loud all the time and be so loud?

There are a lot of things that may cause the fans to work at maximum speed, from an OS X process to a hardware issue.
If you have checked there are not any processes that are taking a lot of your CPU, reset the SMC > http://support.apple.com/kb/HT3964 This is the part that manages the fan speed.
If it does not work, run Apple Hardware Test. Plug the MacBook to the charger, hold Option (Alt) and D keys and run Apple Hardware Test. Make sure you tick the option to run an extended test. If you see an error at the end of the test, copy it here

Why is my macbook pro fan running so frequently and staying so hot?

It seems like recently my MacBook Pro 5 has issues with being too hot. Is this a result of keeping too many applications open?
Thanks,

Make sure nothing is blocking the vents.
According to the user manual it states in part:"Do not operate your MacBook Pro on a pillow or other soft material, as the material can block the airflow vents. Never place anything over the keyboard when operating your MacBook Pro. Never push objects into the ventilation openings."
MacBook Pro: Care, Use, and Safety Information
"Do not place your MacBook Pro on your lap or other body surface for extended periods of time. Prolonged body contact can cause discomfort and potentially a burn."

My macbook pro fan began to be very loud. How can I fix this?

I am unsure as to why this is occurring, but I have heard this can be caused by software rather than a hardware issue. I am led to believe this is the case because my fan is not loud all of the time, only some times and in random bursts. How can I stop this?

Do a SMC reset > http://support.apple.com/kb/HT3964
When your fans are loud, open Activity Monitor (in /Applications/Utilities) and choose "All Processes" above "Show" in the toolbar. Then, look for processes that are taking a lot of RAM and CPU, and copy their name here with their CPU and memory usage

Macbook pro fan running slow

macbook pro fan is running slow and hot. it fluctuates between 212 and 375 rpms. heat rises up to 104c. do i need to replace the fan?

Before I suggest advice, I urge you to keep your machine under 160F at all times. I don't want to sound like an alarmist, but you can seriously damage your machine with that kind of use. Some solders melt at 225F, weaken at 190F.
You may have to replace the fan - or you may need to clean the inside of your machine and fan. It's hard to tell without inspecting your machine.
Or you may find that you need to get a different browser, and become more aware of temperature; laptop machines are much more sensitive to termperature issues than desktop Macs. Some day, you'll thank me for that advice.

My Macbook Pro fan

My Macbook Pro fan is always running and slows don't my computer, What's the issue and is there various ways to try and solve the issue?

Hey Unknownflavour,
There an be a few different reasons why your fans are running. I'd read up on the function of your MacBook Pro's fans in the following document:
Learn about the fans in your Mac
http://support.apple.com/kb/HT4543
Regards,
Delgadoh

My macbook pro i7 (2011 version) has a loud fan and high cpu % when I have Skype on or when I am on Safari. Help please!

My macbook pro i7 (2011 version) has a loud fan and a high cpu % when I have Skype on or when I am on Safari. My laptop would sometimes freeze for a while and it is usually hot. Has anyone else encounter this problem and know how to fix it? Thanks!

Skype is a very resource intensive activity...it has been reported on here users are seeing cpu temperatures on the order of 80-85 °C, within the limits of the cpu, but still hot to the touch.
Make sure nothing else is running so you keep the thermal load down.

My Macbook Pro is 3 months old and recently it has been making quite a loud fan noise whenever i play music/video or even turning up the volume. I haven't been playing music/ video for ages. Is there any solution?

My Macbook Pro is 3 months old and recently it has been making quite a loud fan noise whenever i play music/video or even turning up the volume. I haven't been playing music/ video for ages. Is there any solution?

Try resetting the SMC http://support.apple.com/kb/HT3964

How can i get my macbook pro too stay on and not sleep when lid is closed?

how can i get my macbook pro too stay on and not sleep when lid is closed?

If the machine is asleep, lid closed, and you plug in to an external monitor and an external USB keyboard, the machine will wake, anbd reconfigure the screen resolution for the external monitor, Once it has made this configuration change, you can open the lid and it will continue to address only the external monitor. At least that's how my early MacBook Pro unibody 13" works. It seems to run a bit cooler this way. It gets quite toasty with the lid closed while doing anything demanding and you are more likely to hear the fan come on. I have not seen any temps that would cause alarm, but I do get a high speed (6000 rpm), noisy fan sometimes with the lid closed, .
If you operate in the open-lid, external monitor only mode, if you deactivate the monitor for any reason, when it reactivates it will be running both screens, with all the navigation hassles this entails, so I generally set it not to deactivate the screen when in this mode.
Thus I agree with those who say that some of the cooling air is drawn in around the keyboard, the difference in cooling performance is observable. If you activate istat pro, get the computer hot running in clamshell mode, and open the lid, you can watch the CPU temp drop by a few degrees C within a couple minutes. It isn't a huge difference, but enough the lower the fan speeds.

HT202179 MacBook Pro Fan is very loud overnight. How are they replaced?

MacBook Pro Fan just started to make a lot of noise.This is a MacBook Pro 15 inch 2.4/2.2GHz purchased June 2007. Is this something that most people can replace or does Apple need to fix it or is it time to get a new one base on age and potential repair cost?

Your Mac uses measured temperatures to determine fan speed in a feedback loop.
Racing fans are an indication that your Mac is overheating, or a temperature sensor is not working properly. Replacing the fan will not fix the problem.
Your appointment for an evaluation at the genius Bar of an Apple store is free, in warranty or out. There is no obligation to have them do any work for a fee, but if you choose to, charges are generally flat rate for guaranteed repair, no surprises.
If you recently replaced components, such a RAM DIMMs, with parts that do not have Apple-approved temperature sensors, that can also cause such problems.

My Early 2015 MacBook Pro fans are at 0 RPM and my cpu temperature never fluctuates

Hello all I have had a Mid 2009 macbook pro for 5 years now and just got my Early 2015 MacBook Pro. On my old macbook i used iStat and SMC fan controller religiously and everything worked great.
Now with my new Early 2015 MacBook Pro, My CPU sensor doesn't even show up in iStat, and in my top toolbar, SMC controller shows my CPU temp never moves, and my fans are at 0 RPM. I cannot hear any fans moving at all when in a completely silent room, and my ear is to the computer.
I downloaded a game to stress the CPU to see if it'd change, and it doesn't all the way up to the fans just coming on at 6000RPM and the CPU is very high like 80-90C
I have already reset my PRAM and SMC and was wondering if anyone here has been monitoring their temps and have seen the same thing?
Thanks

I also have an Early 2015 rMBP w/ i5-5287U cpu. I am using Temperature Gauge from the Mac App Store and getting similar if not slightly worse results. I'm usually Idling somewhere between 45 and 60 C with almost no activity. When I run games, forget about it (see below), temps up to 103 Celsius. I also experience almost no fans until at least 70 C, and then during gaming the heat is not coming down.
Given that the cpu is supposed to shut itself down at around 105 C, I'm thinking that the programs are not decoding the temperature sensors correctly. This is my first Mac so it's hard for me to compare performance. I expected better heat regulation. I was trying to avoid programs outside of the mac store for this type of thing, but I'm considering OGELTHORPE's suggestion for istat menus, as they do claim to support early 2015 MacBooks. Have you tried this program yet?

MacBook Pro Fan on continuously

One of the fans on my MacBook Pro is staying on continuously from start-up and making a louder than usual noise [clicking]. I performed the firmware update earlier this year. This is a recent issue. Anyone else experiencing the same?

The clicking noise is probably indicative of a failed (or failing fan)... I would take it to a local Apple store (or call AppleCare) and ask to have it replaced.

Macbook Pro Fan Speed

Hi. I was having some trouble with my temperature of my MBP, but I somewhat solved it using Temperature Monitor and smcFanControl. I turned the fanspeed to Higher RPM in the smcfancontrol menu, and my temperatures are down from ~95 celcius to ~65 celcius (when playing Minecraft / other extensive tasks.)
Now, I would like to bring them down more (should I?) because I feel 65 c - 70 c is still really high...
So, my only question is: In smcFanControl, the Higher RPM setting is 4000 RPM, should I change that to 5000 RPM? I know it would help, but, can the fans handle that?
Thanks in advance
Could 70c (max) shorten it's lifespan?
(sorry I just am extremely extremely paranoid)

I am seeing a lot of negative talk about third-party software to control fans:
Istat menu 5 is good.
It conforms to apple's SMC; this means that it will never allow the fans to go slower than what SMC is asking, thus your computer will be safe using this software.
In contrast I have a Macbook Pro fan controller for bootcamping Windows 7 called MacFanx64.exe (64 bit) that requires you to understand command prompt.
It's nothing difficult, you just need to make sure that you enter parameters properly.
The only way I see one of these damaging any hardware components would be if you accidently told the fan to spin faster than the max speed.
I would agree that for OS X you aren't going to really need this because the engineering on the SMC isn't terrible, but if you happen to have SMC screw up like it sounds like you had, there's no way to know it unless you feel it getting really hot like that which I'm sure isn't great for your MBP.
Therefore having a monitor system is helpful because you can see the temperatures constantly.
Now for Windows 7 bootcamp it's a whole different story.
There is something wrong with the drivers that control SMC for bootcamp because the computer will get hot fast even in idle.
I was marking temperatures around 60-70 C just in idle - the fans still stay at 2000 rpm.
If someone finds something better than MacFan for Windows 7 bootcamp let me know.
Moral of the story, if you pick a good third-party application you're not going to harm your computer.
Think of it like a second line of defense.
Last but not least, if you're still having this problem do an SMC reset.
Apple has instructions on how to do it, just note that you need to pay attention to whether your MBP has a removable battery or not when doing SMC reset.
Cheers

MacBook Pro fans running constantly?

I have had a MacBook Pro (2011) running OS X Lion then OS X Mountain Lion since last August. For the past couple of months, I've had a problem with the fans on the laptop. I made my first trip to the Genius Bar because the fans seemed like they weren't even working. The fans got extremely loud, making strange buzzing / humming noises, and the laptop got very hot. Apple replaced the fans free-of-charge, and I was out of there. Not one week later, the fans started up again with a new problem. When the fans started going, and the laptop became very hot, the screen would shut itself off at random times. So for about 3-5 seconds, the keyboard / display would shut off, with the laptop still up and running (I could still hear the fans.) I went back to the Apple Store last week to get it fixed. They kept it for 3 days to run a full diagnostic, and they discovered... nothing. The paper they gave back stated "No Trouble Found" and I went home without a solution. I've been looking up my problem, and it seems a lot of people have it. So I checked out the Activity Monitor, to see what came up... I would post the numbers on here, but they're rapidly changing... What does that mean? My friend and I both got our MacBook Pros at the same time, and his has no problems, so I compared what we both used them for. He mostly uses his at home for photo editing and Safari. I use mine all-day, every day for school work. So am I overusing the laptop? Also, when I charge the laptop, I don't shut it down, I just close the lid and plug it in... I actually rarely shut down my laptop altogether. Can this be the problem? Sorry I'm writing so much, but this problem has become really annoying, and I want it to be fixed before school starts in a few days. I'm pretty much writing every possible reason that has come to mind why this has been happening...
Please answer, ASAP
- Alex

plane928,
have you tried resetting your MacBook Pro’s System Management Controller?

Macbook pro 17 inch primo 2011 and thunderbolt display crashes

I have a Macbook pro 17 inch primo 2011 and thunderbolt display which has recently started to crash.
Only modifications I have doen lately is I swapped the CD/DVD drive for a harddrive and put in 16 GB of ram
but it has been running for more than a month with these hardware additions without problems.
Today my Macbook has started to crash frequently within 10 min to 1 hour after plugging in my thunderbolt display.
I tried to check CPU heat, change RAM but it keps crashing.
When it crashes it either gives me a blue screen, a black screen or a distorts everythings and freeze up.
When rebooting I have to press Command-Option-P-R to clear NVRAM / PRAM.
I found a few support threads from people having similar problems so I started to disconnect the thunderbolt display
and without plugging it in my laptop works fine.
I have done a SMC reset also but that has not resolved my issue.
Below is the crash report and if anybody has any suggestions what to do to resolve this please let me know
My thunderbolt display was purchased in late 2011
If this is not solveable what options do I have ?
Thanks !
Interval Since Last Panic Report: 2527129 sec
Panics Since Last Report:          6
Anonymous UUID:                    5309BD58-3CBB-321E-545E-6EE6BED7E0E2
Tue Feb 5 17:02:21 2013
Machine-check capabilities 0x0000000000000c09:
family: 6 model: 42 stepping: 7 microcode: 26
Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
9 error-reporting banks
threshold-based error status present
extended corrected memory error handling present
Processor 0: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x0000000000000000 invalid
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0xbe00000000800400 valid
MCA error code:            0x0400
Model specific error code: 0x0080
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
IA32_MC3_ADDR(0x40e): 0x00003f7f85769a95
IA32_MC3_MISC(0x40f): 0x000000000003ffff
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
IA32_MC7_STATUS(0x41d): 0x0020000000000000 invalid
IA32_MC8_STATUS(0x421): 0x0020000000000000 invalid
Processor 1: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x0000000000000000 invalid
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0xbe00000000800400 valid
MCA error code:            0x0400
Model specific error code: 0x0080
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
IA32_MC3_ADDR(0x40e): 0x00003f7f85769a95
IA32_MC3_MISC(0x40f): 0x000000000003ffff
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
IA32_MC7_STATUS(0x41d): 0x0020000000000000 invalid
Package 0 logged:
IA32_MC8_STATUS(0x421): 0x0020000000000000 invalid
Processor 2: no valid machine-check state
Processor 3: no valid machine-check state
Processor 4: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x0000000000000000 invalid
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0xbe00000000800400 valid
MCA error code:            0x0400
Model specific error code: 0x0080
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
IA32_MC3_ADDR(0x40e): 0x00003f7f85fa3e1f
IA32_MC3_MISC(0x40f): 0x000000000003ffff
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
IA32_MC7_STATUS(0x41d): 0x0020000000000000 invalid
IA32_MC8_STATUS(0x421): 0x0020000000000000 invalid
Processor 5: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x0000000000000000 invalid
IA32_MC1_STATUS(0x405): 0x0980000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0xbe00000000800400 valid
MCA error code:            0x0400
Model specific error code: 0x0080
Other information:         0x00000000
Threshold-based status:    Undefined
Status bits:
   Processor context corrupt
   ADDR register valid
   MISC register valid
   Error enabled
   Uncorrected error
IA32_MC3_ADDR(0x40e): 0x00003f7f85fa3e1f
IA32_MC3_MISC(0x40f): 0x000000000003ffff
IA32_MC4_STATUS(0x411): 0x0000000000000000 invalid
IA32_MC5_STATUS(0x415): 0x0020000000000000 invalid
IA32_MC6_STATUS(0x419): 0x0020000000000000 invalid
IA32_MC7_STATUS(0x41d): 0x0020000000000000 invalid
IA32_MC8_STATUS(0x421): 0x0020000000000000 invalid
Processor 6: no valid machine-check state
Processor 7: no valid machine-check state
panic(cpu 0 caller 0xffffff80048b83c9): "Machine Check at 0xffffff7f85769a95, registers:\n" "CR0: 0x000000008001003b, CR2: 0x000000010cd0e30c, CR3: 0x00000000072b4000, CR4: 0x00000000000606e0\n" "RAX: 0xffffff802516f800, RBX: 0xffffff802516f800, RCX: 0xffffff80253ab800, RDX: 0x0000000000000001\n" "RSP: 0xffffff8207ad3e90, RBP: 0xffffff8207ad3ec0, RSI: 0xffffff8207ad3edf, RDI: 0xffffff802520e000\n" "R8: 0xffffff8004ebec60, R9: 0x7fffffffffffff00, R10: 0xffffff8004ebdc20, R11: 0x0000000000000201\n" "R12: 0xffffff80253ab800, R13: 0xffffff81d60d2000, R14: 0xffffff8207ad3edf, R15: 0xffffff802520e000\n" "RFL: 0x0000000000010282, RIP: 0xffffff7f85769a95, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2050.18.24/osfmk/i386/trap_native.c: 280
Backtrace (CPU 0), Frame : Return Address
0xffffff800470bd20 : 0xffffff800481d626
0xffffff800470bd90 : 0xffffff80048b83c9
0xffffff800470bf00 : 0xffffff80048cedbf
0xffffff8207ad3ec0 : 0xffffff7f856d75b4
0xffffff8207ad3ef0 : 0xffffff8004c472a8
0xffffff8207ad3f30 : 0xffffff8004c45daa
0xffffff8207ad3f80 : 0xffffff8004c45ed9
0xffffff8207ad3fb0 : 0xffffff80048b26b7
      Kernel Extensions in backtrace:
         com.apple.driver.AirPort.Brcm4331(602.15.22)[5BDCA43F-AD42-3F05-BCCF-BC364D17E1 5F]@0xffffff7f856ca000->0xffffff7f858bbfff
            dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7f84e72000
            dependency: com.apple.iokit.IO80211Family(500.15)[4282DF5A-86B9-3213-B9B1-675FAD842A94]@0xf fffff7f8565e000
            dependency: com.apple.iokit.IONetworkingFamily(3.0)[28575328-A798-34B3-BD84-D708138EBD17]@0 xffffff7f85015000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12C60
Kernel version:
Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64
Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333
Kernel slide:     0x0000000004600000
Kernel text base: 0xffffff8004800000
System model name: MacBookPro8,3 (Mac-942459F5819B171B)
System uptime in nanoseconds: 6197670207287
last loaded kext at 6133447331639: com.apple.driver.AppleUSBCDC          4.1.22 (addr 0xffffff7f86cb5000, size 16384)
last unloaded kext at 5379727445407: com.apple.driver.AppleUSBCDC          4.1.22 (addr 0xffffff7f86cb2000, size 12288)
loaded kexts:
com.apple.driver.AppleUSBCDC          4.1.22
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.filesystems.smbfs          1.8
com.apple.filesystems.afpfs          10.0
com.apple.nke.asp_tcp          7.0.0
com.apple.driver.AudioAUUC          1.60
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.filesystems.ntfs          3.10
com.apple.iokit.IOBluetoothSerialManager          4.0.9f33
com.apple.driver.AGPM          100.12.69
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDA          2.3.1f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.2.11
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleIntelHD3000Graphics          8.0.0
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.kext.AMDFramebuffer          8.0.0
com.apple.driver.SMCMotionSensor          3.0.2d6
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleMikeyDriver          2.3.1f2
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleSMCLMU          2.0.2d0
com.apple.AMDRadeonAccelerator          1.0.0
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.driver.AppleMuxControl          3.2.11
com.apple.driver.AppleIntelSNBGraphicsFB          8.0.0
com.apple.driver.AppleUSBTCButtons          235.4
com.apple.driver.AppleUSBTCKeyboard          235.4
com.apple.driver.AppleIRController          320.15
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.2
com.apple.driver.AppleUSBHub          5.2.5
com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3
com.apple.driver.AirPort.Brcm4331          602.15.22
com.apple.driver.AppleFWOHCI          4.9.6
com.apple.driver.AppleAHCIPort          2.4.1
com.apple.driver.AppleUSBEHCI          5.4.0
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.1
com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.1.1
com.apple.iokit.IOFireWireSBP2          4.2.0
com.apple.security.SecureRemotePassword          1.0
com.apple.kext.triggers          1.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.DspFuncLib          2.3.1f2
com.apple.iokit.IOAudioFamily          1.8.9fc10
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.IOSurface          86.0.3
com.apple.iokit.IOBluetoothFamily          4.0.9f33
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleSMC          3.1.4d2
com.apple.iokit.IOAcceleratorFamily          19.0.26
com.apple.kext.AMD6000Controller          8.0.0
com.apple.kext.AMDSupport          8.0.0
com.apple.driver.AppleHDAController          2.3.1f2
com.apple.iokit.IOHDAFamily          2.3.1f2
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.driver.AppleGraphicsControl          3.2.11
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.5
com.apple.iokit.IOGraphicsFamily          2.3.5
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleThunderboltDPInAdapter          1.8.5
com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.5
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.5
com.apple.driver.AppleUSBMultitouch          235.7
com.apple.iokit.IOUSBHIDDriver          5.2.5
com.apple.driver.AppleUSBMergeNub          5.2.5
com.apple.driver.AppleUSBComposite          5.2.5
com.apple.driver.CoreStorage          274.7
com.apple.driver.AppleThunderboltNHI          1.6.0
com.apple.iokit.IOThunderboltFamily          2.1.1
com.apple.iokit.IOUSBUserClient          5.2.5
com.apple.iokit.IOEthernetAVBController          1.0.2b1
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.I
Model: MacBookPro8,3, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 16 GB, SMC 1.70f5
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1333 MHz, 0x029E, 0x434D534F384758334D314131333333433920
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1333 MHz, 0x029E, 0x434D534F384758334D314131333333433920
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.81.22)
Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: APPLE SSD TS256C, 251 GB
Serial ATA Device: ST750LX003-1AC154, 750,16 GB
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0246, 0xfa120000 / 5
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 6
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc51b, 0xfd130000 / 5
USB Device: iPhone, apple_vendor_id, 0x12a0, 0xfd120000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3
FireWire Device: My Book 111D, WD, 800mbit_speed

The other day I got the blue screen, the fan going on high, and then when I disconnect my thunderbolt connection from my macbook pro - i get a shutdown.
Today I got flickering followed by the fan on high and then again I disconneced my thunderbolt cable and after a minute or two a shudown.
This never happened before. Actually I was suprised to hear about a firmware update for flickering since that's never happened to me but since updating I now get the flicker.
Any ideas?? Any help would be greatly appreciated as this is my work labtop.

MacBook Pro fans stay on strong and loud

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