My macbook air has shutdown unexpectedly and the fan has been continuously running. and, now the system won't start
Today while working on my system, it shut down unexpectedly. And, subsequently the fan switched on, which has been running continuously for the past couple of hours. Since then have tried restarting the system, but it won't.
Hello atanu69,
I'm sorry to hear you are having trouble getting your MacBook Air to turn on. The resource below will offer some troubleshooting steps to try to resolve this issue.
If your Mac won't turn on - Apple Support
https://support.apple.com/en-is/HT204267
I hope this information helps ....
- Judy
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My Macbook Air has been freezing now it will not turn on and is making noises when I try, Help?
My Macbook Air has been freezing now it will not turn on and is making noises when I try, can anybody help I haven't a clue what to do?
Try the troubleshooting steps mentioned here > Troubleshooting: My computer won't turn on
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MacBook Air has been overheating
It seems as if my 13" MacBook Air has been overheating since I downloaded Lion. It happens as soon as I open the cover and sometimes I can smell an electrical burning smell. If that happens, I immediately turn it off & let it cool down. It's gotten to the point where I can't use it for more than a few minutes.
Thanks everyone!Hi Everybody,
Thanks for your replies to start with.
I have tried to install Coolbook now and has it running. When using 'throttling' and letting it change CPU speeds (I think..) the problem still remains. When watching a video or other demanding task the temperature goes way up. Running a CPUTest (small or big) gets CPU temperatures of up to 84-85 C. Fan of course at 6200rpm all the time.
Right now, I have Coolbook set to 800Mhz and 0.9V. Apps running are Firefox, Skype, Mail and iTunes with no audio playing. CPU temperature at 56 c and fan speed (as usual) at 6200rpm. I can use the computer now. It is still lagging and not very fast at all. Sometimes text appear 1-2 seconds after I have written it on the keyboard.
So Coolbook has made a difference for me, but only when putting the CPU speed down to 800MHz. I wouldn't call reducing the CPU speed to half a 'solution' though and will not keep that as a long term solution. Reducing voltages for higher CPU-speeds 0.9875V for 1600MHz does not work, it still heats up massively.
Have used the MBA for the whole day today and can't recall a single time the fan has not been around 6200rpm except right after boot.
Thanks for the tips on upgrading to 10.5.8. I will try that right away and let you know how it works out.
Have also considered buying some cooling device but just as you say that feels like a bit of a last thing to resort to.
I'm surprised Apple hasn't responded stronger to this. Had this happened in the car industry we would have seen thousands of cars being sent back to the garage to be fixed.
If this only has to do with some specific production weeks then the right thing to do would be for Apple to let those people have their computers either fixed or replaced. -
i just bought a macbook air 3 weeks ago and now they have an upgrade. is there anyway for me to trade up?
Welcome to Apple Support Communities
It's possible to return the computer during the first 14 days, but now you can't return the MacBook Air. You can sell your computer and get a new MacBook -
If the system won't start at all
I have just purchased a MSI K8Neo 2 FX S939 motherboard second hand. I have installed a AMD 64 3200+ CPU and two 256M DDR333 memory modules
and a NVIDIA 6600GT 256M DDR3 videocard on it. These components worked prior on another motherboard. Now the system won't start at all.
The following observations has been made.
1) All fans start to spin including CPU fan videocard fan and the fan on the mb chip and the power LED lits up.
2) Nothing else happens. No display no sound from the internal PC speaker.
3) If I press the reset button nothing happens at all
4) I must press the power button for several seconds to turn of the power from the system
5) The mobo was not delivered in a ESD bag but wrapped in towels. Does that make ESD damage likely?
What conclusions can be made from that? My own opinion is that the CPU never starts working. Otherwise shouldn't there be some beep from the PC speaker when an error is detected? I have carefully checked all connectionsQuote from: Henry on 29-April-09, 07:26:15
Q-Tec PSU.
You are wasting your and our time untill you get rid of that piece of garbage, you are lucky anything at all worked with it.
Buy a real PSU, not a wanna-be like Q-Tec. For that PC a Corsair CX400W (+12~30A) 0r VX450W (+12V~33A) would be good. If you might need more power for the future you might want to consider on of the Corsair TX series or PC P & C 610W or 750W. Whatever you do don't get a cheap PSU, get one you can depend on.
Yes I know I shouldn't ask much of a Qtec PSU but I doubt that it is the reason for this problem. Even a QTec should be able to let the speaker make a beep sound at least. My current MSI setup require rather little power. Got no PCI cards or USB units. Only one harddrive and one DVD Rom. According to the web power supply calculator I need a little bit over 200W and the PSU you suggests would be expensive
http://www.extreme.outervision.com/psucalculatorlite.jsp -
SP1 for Exchange 2013 install failed on me with ECP virtual directory issues:
Error:
The following error was generated when "$error.Clear();
$BEVdirIdentity = $RoleNetBIOSName + "\ecp (name)";
$be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyContinue;
if ($be -eq $null)
new-EcpVirtualDirectory -Role Mailbox -WebSiteName "name" -DomainController $RoleDomainController;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication:$false -WindowsAuthentication:$true;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -ExternalUrl $null;
. "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1" -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
" was run: "The virtual directory 'ecp' already exists under 'server/name'.
Parameter name: VirtualDirectoryName".
Error:
The following error was generated when "$error.Clear();
$BEVdirIdentity = $RoleNetBIOSName + "\ECP (name)";
$be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyContinue;
if ($be -eq $null)
new-EcpVirtualDirectory -Role Mailbox -WebSiteName "name" -DomainController $RoleDomainController;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication:$false -WindowsAuthentication:$true;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -ExternalUrl $null;
. "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1" -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
" was run: "The operation couldn't be performed because object 'server\ECP (name)' couldn't be found on 'DC0xx.domain.com'.".
Error:
The following error was generated when "$error.Clear();
$BEVdirIdentity = $RoleNetBIOSName + "\ECP (name)";
$be = get-EcpVirtualDirectory -ShowMailboxVirtualDirectories -Identity $BEVdirIdentity -DomainController $RoleDomainController -ErrorAction SilentlyContinue;
if ($be -eq $null)
new-EcpVirtualDirectory -Role Mailbox -WebSiteName "name" -DomainController $RoleDomainController;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -FormsAuthentication:$false -WindowsAuthentication:$true;
set-EcpVirtualdirectory -Identity $BEVdirIdentity -InternalUrl $null -ExternalUrl $null;
. "$RoleInstallPath\Scripts\Update-AppPoolManagedFrameworkVersion.ps1" -AppPoolName:"MSExchangeECPAppPool" -Version:"v4.0";
" was run: "The operation couldn't be performed because object 'server\ECP (name)' couldn't be found on 'DC0xx.domain.com'.".
!! And now transport service won't start and mail is unavailable !!
Any help would be appreciated.
I have removed the ecp site from default site and attempting to rerun SP1 now. I do not have high hopes. :(Hi,
Thanks for your response.
From the error description, you need to manually remove the ECP with IIS manager in both the Default Web Site and the Exchange Back End firstly. And then continue the upgrade to check the result.
Hope this can be helpful to you.
Best regards,
Amy Wang
TechNet Community Support -
I deleted my extensions manager and now my Mac won't start up. Please Help!!
I have an IMac, 24" model, running OS X. For the past several days, little warning windows have been popping up with this annoying beep, telling me that my computer was infected with various viruses. 4, to be exact. Also, while on the internet, random pop-up windows have appeared, so I thought I did have a virus. So, to correct the matter (or attempt to), I deleted my preferences folder from the system folder, as well as the extensions manager.
Now, the computer won't start up past the white logo screen with the turning gear thingy. I've tried resetting the PRAM, and starting in safe mode, and safe mode with the progress screen, and even something there while holding the option key (that one gave me an icon of my HD, but clicking on it took me back to an endless wait on the white screen). I've tried starting from the disk that came with the computer (I held the C key) but not only doesn't the computer start from the disk, it spits the disk out. I don't understand. The computer was fine until I deleted the ext. mgr and preferences, so it can't be that the computer went bad or something.
I don't know what else to do here. I do have an extended service warranty with Best Buy, but I wanted to see if there was some way to fix this before hauling this thing off to the store. Any suggestions? I'm desperate here, because anything and everything I've tried (based on all the try-this and try-thats I found on the internet), nothing has worked.
Please help.
Thanks in advance.Well done! You've succeeded in turning your Mac into a useless brick.
Deleting the System/Library/extensions folder and the associated manager removed most of the functionality from your OS.
And all to get rid of what sounds like the MacDefender trojan or a variant.
ref; http://support.apple.com/kb/HT4650 and http://support.apple.com/kb/HT4651
You may have a slim chance of recovering if it will still boot in Target Disc Mode; in which case you can use another Mac to install the system remotely.
And I doubt your warranty with Best Buy is going to cover user "error."
Message was edited by: noondaywitch -
I recently upgraded my Macbook Air to the mighty "Mountain Lion" and now I cannot seem to find my "notes", regardless of the countless answers given to people with questions similar to me.
Surely Apple wouldn’t make you lose all your important information-or they would be "bad apples".
If someone has a solution, please please please help me find my lovely notes! (Step by step would be most helpful). Cyber high fives and Smiles will be rewarded graciously.I recently upgraded my Macbook Air to the mighty "Mountain Lion" and now I cannot seem to find my "notes", regardless of the countless answers given to people with questions similar to me.
Surely Apple wouldn’t make you lose all your important information-or they would be "bad apples".
If someone has a solution, please please please help me find my lovely notes! (Step by step would be most helpful). Cyber high fives and Smiles will be rewarded graciously. -
I just bought a new Macbook air 3 weeks ago and now there is out a newer model
I just bought a new Macbook air 3 weeks ago here in Thailand and found out that since 3 days the new ones where lunched. is there a chance to get the new one for no charge? it happend to me with the iphone in the US before and apple changed it to the new model for no charge. But does this service work for Thailand too??
After 3 weeks, probably not, but it's up to you to at least try. If you purchased your computer through Apple's online store in Thailand, there's a phone number you can call. If you purchased the product through a premium reseller (iStudio, for example), you should take it back to the store. If you purchased it from a dodgy storefront in Pantip Plaza, or MBK, you can always ask...but, I'm guessing that they won't help.
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Macbook air keys not working and now unable to boot up
Really frustrated today. So this is basically what happened. My macbook air 2012 was fine this morning but after i had lunch and came back to it alot of keys were unable to work. There have been no water spills or anything like that. I tried every possible solution and then i realised my software was out of date and decided to update to latest software. However while installing the new updates a message popped up saying an error had occured and i was left with a blank grey screen and a pointer. I waited a few minutes but still nothing had happened. Then i decided to shut down my computer and after i rebooted i was gretted with this
panic(cpu 0 caller 0xffffff8002c59241): "unable to find driver for this platform... etc etc
and the screen just stood there with a screen full of words. I searched for a solution to this and realised i could reinstall OSX by pressing cmd R and reboot but jus to my luck the key R was one of the keys that wasnt working. So now im kinda screwed not knowing what to do. Im probably gonna take it to Apple and see if they can do anything but for now does anyone have any suggestions??Since any diagnostics at this point are utterly deadlocked, no; however see SMC reset below for last chance option before appt. with Apple
re-verify still the same.
Make an appt. with your local Apple store for full diagnostics and possible reinstall of your OS.
I hope you had a backup your vital data on your machine, a complete restore may be required, though that is indeterminate.
Peace.
See if you can perform a SMC reset to get out of same:
SMC reset
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. -
Hello
I was having some problems with my Imac, for a while it was slow and often disconneceted from my wifi, while this one worked perfectly (tested with other devices)
I thoug i might have a virus, so i downloaded an antivirus (mac keeper) and started checking.
I also did a scan of my computer using Console or something from the utilities, and then a folder popped witha file I had canceled a while ago. I canceled the file and then my Imac continued to be slow.
i then restarted my Imac, but when it started, the usual grey logo of Apple appeared, and then it shut down suddently.
I tried to reboot it holding the command key and R but nothing, and then i tried holding the shift key and a bar appeared, and at half of the bar it sut itself down again.
I think it is probably a preoblem because I may have cancelled some of the system files from a folder called "private" in the "documents" folder.
Is there any way I can recover some of my files? maybe all of them? I hope so because I have some important files there
Is this a thing I can do myself or do Ineed to go to a MacStore to repair it? Will I need to change HD or just to format it and reinstall? also if there is any way i can recover some of my files that would be great.
Thanks
Ludo
P.S. problems appeared when i installed the Mavericks version.If MacKeeper corrupted the Recovery partition then even I underestimated its potential for damage. Garbage "cleaning" apps will cause misery but I have not found that the Recovery partition to have been affected by using MacKeeper or anything like it. I doubt that it did so, but I have learned not to underestimate the potential for such things to result in system corruption.
Before concluding your Mac has a hardware failure, try booting OS X Internet Recovery by holding command option r on startup (three fingers). That will force your iMac to bypass the Recovery partition altogether, and convey the ability to create a new one.
An Internet connection will be required (wired or wireless).
At the Mac OS X Utilities screen, select Disk Utility. Select your startup volume (usually named "Macintosh HD") and click the Repair Disk button. Describe any errors it reports in red. If Disk Utility reports "The volume Macintosh HD appears to be OK" in green then you can be reasonably (though not completely) assured your hard disk is in good working order.
Assuming the HD remains usable you can then use Disk Utility to erase it. Reinstall OS X, restore your essential software and other files, and don't reinstall the junk. -
Hi there, hoping for help pls. I just installed mavericks and now garageband old version won't start because the BFD folder is invalid.
Click Software Update from your Apple menu drop down menu.
If there's nothing available from Software Update, you may need to purchaase the newest GB version 10.0.2 from the App Store. -
Upgraded to Yosemite and now my laptop won't start HELP!!!
Last night I upgraded my Mac BookPro with yosemite and don't know if I did the right thing, my laptop won't startup, where the apple logo appears, after like 10-20sec, it appear a Decline logo and won't start, WHAT CAN I DO? Is there a way back? I had it for like 5 minutes and my computer was really slow and Microsoft Office, iMessages didn't open. I had to restart my computer and then I got stuck with the Decline LOGO!
Troubleshooting Apple Mail
Troubleshooting sending email messages -
What to do when your MacBook air has been stolen
I have already reported the theft to the local police, but I was wondering if there was any kind of official Apple service to report stolen devices so they can block its next user and/or delete my personal files the next time the computer is conected to the internet.
Also, is there any way to locate it? I tried the iCloud option to locate devices, but there was only my iPhone to locate.
Thank you in advanceFor your next Mac, yes, you can use "Find My Mac" in much the same way as "Find My iPhone". It sounds like you did not set that up on your stolen Mac, so it's not available.
Here's Apple's article on this subject:
Reporting a lost or stolen Apple product -
HELP! I had a Flashback Trojan/Malware on my Mac, I deleted it in trash, and now my Mac won't start.
At first my Mac Finder showed n81, n82, etc when you right-click it, instead of the commands " open new finder window", "hide" etc. I also noticed that sometimes, when I would go to sites such as facebook, it would redirect to a different site and I'd have to type in the address again to get to the site. Nothing else was wrong with it. Safari was not shutting down. It wasn't slow.
I did some research and found that I probably have the Flashback Trojan/Malware virus (whatever that is?) And so I followed what some people did (which got their mac fixed) .. I downloaded clamvax and tinkertool to find the malware (hidden files) and I deleted it in trash.. my computer seemed fine but when I restarted it, it wont turn on anymore.. the screen remains blue, the mouse could still be moved, but it stays that way..
did I lose all my files? am I being hacked as we speak? Is this virus very dangerous?! I am very paranoid and know nothing about this kind of stuff so please help!
BTW, the malware was from the game Farm Frenzy.. I have no idea how I got this... I never play online games.@Thomas, Thanks for jumping in. I had to take my wife to a Doctor appointment and things went down hill from there.
I note that you are using Mac OS X 10.5.x. It's important to understand that the Java vulnerabilities that allowed this malware to get established on your machine cannot be fixed in 10.5.x. You would need to upgrade to at least 10.6 (Snow Leopard) to be able to get a version of Java with those vulnerabilities fixed. (Correct me if I'm wrong there, Al!)
That's 100% correct. Natalia has the distinction of being the first OS X 10.5 user confirmed to be infected by Flashback as far as I can tell. That operating system is becoming increasingly dangerous as the days go by. The OS has not been updated since Aug 2009 and the last Security and Java updates were in June 2011. There is no XProtect system and more and more third party's have dropped support in updating their Applications.
Natalia_ wrote:
I actually ran disk utility, and it said that the Macintosh HD is fine... I also tried safe mode/safe boot and did the FSCK command.. even that said that my laptop was fine? but somehow it still stays blue when I start up!
And I think it probably is fine, except that something is hanging during the initial loading process. Could be most anything.
As for my files, I appreciate your advice but I am scared I might do something wrong and mess my laptop up even more!
There is almost no chance of that and at this point it should be obvious to you that if the files on your laptop are that important, you should already have a backup.
I will take it to Apple and hopefully they can help me... because it seems that my files aren't wiped out... yet... It still displayed that I had my files in there..
One word of caution, then. I have been told that Apple has instructed their support folks not to attempt to clean up a malware infection. If I were you I wouldn't bring it up unless you have to.
By the way, while the disk was running, it was making very loud noises.. humming/grinding/etc... what could this mean?
Only one thing in my experience, you're hard drive is toast. All the more reason to try and get all the data you can off it immediately.
The only way to test it is to do a surface scan which Disk Utility cannot do. You would need a third party utility to do that. If it tells you there are bad sectors, that is 100% proof that it's going bad, as modern hard drives repair themselves of bad sectors until they run out of reserves to substitute.
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