Hardware :: High Exhaust Fan Speeds For No Apparent Reason
May 16, 2010
I have had my MacBook for 3 years and it has run great. Recently I have noticed that my exhaust fan has been hovering around 6000 RPM for no apparent reason. When I took that screen shot I only had Safari Open. Here's the vitals on my Mac..
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Oct 7, 2009
A few days ago I found that launchd was constantly using around 14% of my CPU (via iStat), which drastically lowered my battery life and caused my CPU to reach 75 degrees Celsius and higher. Initially I thought that SL just needed to do something, so I ignored it. But it has persisted for a few days now, so I decided to do something about it.
I checked the Console and nothing appeared to be repeating itself, so what I did was use MainMenu to perform a batch of system maintenance tasks, and then left my Mac on overnight to see what Console would report. Besides hourly instances of "kernel" running "iCalHelper" and "SubmitDiagInfo", there was nothing else.
However, launchd lowered its CPU usage to about 3%, but it is still constant and my CPU is still at a constant 40-50%. Activity Monitor says the following processes are (constantly) taking only 1-4% of the CPU:
coreservicesd
launchd
mds
WindowServer
disnoted
activitymonitord
...and others
The CPU is reported as 35% User and 20% System. But I am not running anything besides Activity Monitor.
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Nov 24, 2010
ok so i suppose the inevitable had to happen. and so my mac OS X crashed badly within a few days of my getting this new MBP!
i had a short word document open in 1 workspace some firefox tabs in another, and was checking out the movies in my ext HDD (formatted with NTFS).and suddenly i start seeing this multi colored round icon which i guess is the cousin of the windows hourglass. after trying unsuccessfully to force quit, i was forced to hut down using the boot up button. yes, the same procedure that wreaks havoc on the HDD.
- so my questions are - what to do if even force quit doesn't work ? its surprising that it didn't in this case, as i have used ubuntu for almost 3 years and never had the OS crash on me! of course there were a few application crashes but the force quit always worked. and there was the keyboard shortcut - Ctrl+Alt+Del.
- also what is the norm with macs in this regard ? do they crash often and for the flimsiest of reasons as in my case ?
- probably i am not aware of the Mac OS equivalent for the Ctrl+Alt+Del function that almost always works in ubuntu. so is there some key combination that is guaranteed to work in the even that even force quit does not?
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May 23, 2012
Should I use my Apple Care, or is there a quick fix?
Info:
MacBook Pro
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Jun 28, 2012
My iMac shuts down by itself ocassionally for no apparent reason.It happened overnight last night.Here's the Problem Details report that appeared on restart. [code]
Info:
iMac, Mac OS X (10.7.4)
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Aug 27, 2014
my MacBook Pro keeps crashing.Â
Anonymous UUID:Â Â
BF278BF8-0869-27D0-A095-E98FAAEDED88
Wed Aug 27 14:18:24 2014
panic(cpu 0 caller 0xffffff80250dc24e): Kernel trap at 0xffffff80250c6d91, type 13=general protection, registers:
[Code]....
Info:
MacBook Pro, OS X Mavericks (10.9.1)
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Dec 5, 2014
My iMac ( late 2012, 27", 3.4 GHz i7, 16 GB RAM, 3TB Fusion Drive, OS X 10.10.1 ) has taken to randomly restarting for no reason that I can find. It seems to be mostly when I am not actually doing anything, but, as I say, it's random. It did it five times in about half an hour the other day, then it didn't do it for a day or so, but it just did it again, which prompted me to ask. I have run Tech Tool Pro 7, and everything has passed. I have repaired permissions ( there were lots ). What next?
Info:
iMac, OS X Yosemite (10.10.1)
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Aug 6, 2009
I'm having a hell of a time with my mac. It started out when firefox would crash for no apparent reason, asking to send in an error report and eventually it got to where mac itself would crash, turning the screen dark with a picture in the middle appearing saying "You need to restart your computer. Hold the power button down for 2+ seconds". I've tried a lot, I've repaired permissions using the disk utility, I've reinstalled Java and I even verified the disk using the disk utility which seems to be the problem. It said my mac needed the system to be repaired. Except I've got a big problem: I just moved and I don't have the apple hardware test disc, so I'm stuck. Then, today I tried to use Safari instead of Firefox and even it is crashing. This is really irritating, I thought it was a virus until I downloaded a free antivirus that said it wasn't.
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Jan 25, 2010
I have loved and cherished my MacBook Air for two years now, but last night it went in to a reboot cycle for no apparent reason. Now every time it gets to the apple logo I get the rotating "thinking" ident under the apple logo and it restarts, continually. I did the hardware test (holding down "D".....that was fine.) I also reset the PRAM... so the troubleshooting keystrokes work.
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Jun 27, 2012
The audio on laptop is off for no apparent (muted) reason.
Info:
MacBook Air, iOS 5.1
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Oct 13, 2010
Systematic Endpoint antivius protection installed on my computer. Recently I have been seeing high CPU temps - around 70/75 and fan exhausts around 4500. I have been researching on other forums and I have seen that it could be the virus protection that is causing this. Now I know that I don't really need the virus protection because well, I have a mac. So I was wondering how can I successfully uninstall the protection. And if anybody on here disagrees with it being the virus protection, then what do you think it could be? Right now I am only running Firefox for surfing and Itunes.
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Apr 12, 2010
I have a Mac Mini with two external WD MyBook's attached. The drive in question, is configured for Time Machine backups every four hours. It should sleep the rest of the time. But every once in a while, it wakes. I just revs up for no reason, then after a short while it goes back to sleep. It can happen when I open a folder, open a file, click a link in the browser or some other seemingly unrelated action.
I tried to untick the "Put the hard disk(s) to sleep when possible" to see if I then at least could get the drive to stay awake instead. This did not change the behavior at all.
Does anybody have a clue what I can do, to get OS X to leave that drive the hell alone, other than Time Machine??
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May 16, 2010
I have had my MacBook for 3 years and it has run great. Recently I have noticed that my exhaust fan has been hovering around 6000 RPM for no apparent reason. When I took that screen shot I only had Safari Open
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May 11, 2012
I have 750GB MacBook Pro and up until the other day I showed 250GB used and 500GB unused. I discovered this because the past two days my computer would just freeze and I couldn't do anything. So I ran the Disc Utility and it found some errors and fixed them. So I'm wondering if the 400GB of lost disc space now has something to do with the computer locking up? I've searched all the folders and added up their size and still come back to 250GB that I can see. So I'm assuming there's something hidden somewhere that's eating up over half my hard disc space?
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.4)
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Dec 15, 2010
I've recently bought a mac mini (newest revision) and I noticed that it's wireless card is a lot better at retaining high speeds (especially at 5ghz spectrum). Is there a pci-e wireless card that I could pop into the MP that's better?
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Jun 30, 2007
So today I got back to the house, to find my iMac had turned itself off somehow in the hour that I was away, and when I went to reboot it, it turned on like normal, but the fans began blaring very loudly. When I checked out the speeds in iStatpro, the hard drive fan was going at about 3700rpm and the optical drive fan was around 2900. The fans normalized shortly thereafter, but I don't know if this is cause for concern, or just a little random kink.
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Sep 14, 2009
So what exactly affects fanspeeds? Heat, yes, but should my MBP (early 08) be heating up so much from watching Youtube videos, maybe it's just the widescreen ones? I do have other apps running though.
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Mar 20, 2012
The fans on my 3.06 GHz Intel Core i3 imac run almost constantly and at high speeds. I have reset the SMC, fixed permission, and tested the disk. Also, I downloaded SMC Fan Control. Here are my current readings will the fans are blasting:
ODD: 994
HDD: 5577
CPU: 1200
Temp: 44C
Info:
iMac, Mac OS X (10.7.3)
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Feb 8, 2010
I just recently bought an imac computer and my two friends who know a lot about apple computers thought that the fans and temperature might be a little high. The cpu fan at idle runs at just under 1200 rpm's, the harddrive fan runs at 1100 rpm's and the optical drive fan runs at 1000 rpm's. The temperature itself 40-44C. The other imac that they know of is a year old, so we weren't sure if there were newer upgrades that might be making the difference between our speeds and temperature compared to that one.
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Oct 9, 2009
where is the fan exhaust located on my uMB and how do I clean it out?
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Jul 6, 2012
how do i turn on exhaust in imac its getting heat alot
Info:
MacBookPro, Mac OS X (10.7.4), nothing
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Jun 30, 2014
The fan was rattling so loud forever so I cleaned it. Unfortunately I broke 3 blades.
then the noise completely stopped, so I was happy, but soon found out its probably not working because newly downloaded Istat shows exhaust: 0rpm.
i opened mac again to check wiring, connection etc.
still 0 rpm...does this happen often?Â
Macbook mid 2007, 10.6
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Jan 27, 2010
I recently purchased a PowerBook G4 it had 512mb ddr2 ram as standard so I went out and bought a 2gb stick for it. After removing the 512mb stick and installing the 2gb stick it worked fine, and then it started to crash without anything being done, so initially I borrowed a known to be working stick of the ram and put that in and the errors keep coming up? Even with the original stick it seems to be crashing for no apparent reason. Before I installed the new stick it was working fine the the 512mb stick, but she still does it with the original stick.
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Aug 28, 2014
FCPX exports are all jumpy....not apparent on timeline!Â
Info:
G5, Mac OS X (10.4.8)
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Aug 31, 2014
iMac 10.9.4 software updates last week is apparent cause of my Corel Painter X3 now crashing. I ran Disk Utility check - no probs there. I reinstalled Painter X3 (after first uninstalling X3), still no success.
Info:
iMac (27-inch, Late 2013), OS X Mavericks (10.9.4)
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Jun 16, 2009
Does it hurt the computer... If the computer is doing something (watching flash, playing a game) that turns on the fan full speed;Does this hurt the computer? There are a few games I like to play and they turn on the fan at full speed (computer gets hot too, on the bottom.)
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Apr 14, 2010
How does the Antiglare screen look? Does it look cheap and flimsy like the matte screens on the pc laptops?This is my first Mac and i'm looking at going all out and getting the top of the line 15". I know I definitely want the HD screen, i'm just not sure which screen looks better. What about a 5400 vs 7200 rpm hdd? Is this upgrade worth it?
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Nov 13, 2010
I have 2 WD Caviar Black drives that are installed in my Mac Pro. Both show the exact same part number in Disk Utility, both are less than half full, both verify fine with Disk Utility. However one shows 125-130 MB/s RW with AJA and the other only delivers 90 MB/s. What gives? Just a sub-standard drive? THey are in adjacent bays in the MP, used as is - nothing changed. They are OEM drives thru Amazon from a few months ago. Both were erased and formatted prior to putting them in the MP a few weeks ago.
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Dec 30, 2006
The 64 bit 33MHZ PCI slots on a G4 are running at 133MBps correct? Also I want to know if all 4 of them are running fully inpendent from each other? So if I have a RAID card in there I can get the full 133MBps and will not be robbed of speed if I have a neighboring Firewire 800 or SATA RAID next to it.
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Feb 4, 2010
Using both smcFanControl and istat, I cannot get a reading on my fan speeds. I can hear my exhaust fan spinning, but these programs tell me it is always at 000 rpm. Also, I don't think the fan control is working, as I don't hear an increase in fan speed when I make adjustments.
Does anyone know how I can get these apps to recognize my exhaust fan?
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