A light? Any sign at all? Im having the same problem. Im pretty sure my mac is not reseting the SMC because the energy setting had not reset. Is there anything else i can do? Well, I started getting these restart messages every time my computer did start working, and had to keep doing this until the computer just gets stuck at the white loading screen with a grey spinning wheel under an apple sign grey also, this computer has the rounded edges and no, does not have the removable battery.
If following these directions does not work, try powering down, unplugging, then doing the shift, control, option, power thing then restart. Thank you so much. MacBook 1,1 Intel Core Duo. Apple is doing their best to deny replacing the ruined batteries but at some point the pressure from customers will make them face this issue, or litigation will. I have a macbook pro 17 inch running Yosemite for awhile everything ok. Replace the battery, reconnect power, and zap PRAM and wait for 2 chimes before letting the keys go. Check out more information on when and how to reset your SMC.
Gary, same here, did you ever figure out what was wrong? Could a bad hard drive cause this? Name required. Mail will not be published required. All Rights Reserved.
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How to Reset PRAM and SMC on Your Mac.
February 21, at pm. Omar says:. October 28, at pm. Call Apple, maybe? They might be able to help out. I have to say I have exactly the same problem If I start again, same process I have tried the PRAM reset? Macbook Air keyboard became completely unresponsive. Was able to shut it down but now it won't turn on. I tried the SMC reset but it still won't turn on.
Power indicator turns green for about a second after the reset so it seems to be getting the message but it still won't power on. Have you tried a PRAM reset? If that doesn't work, I'd take it into an Apple store. That doesn't sound good. After a weekend of trying things I finally managed to login on the acct I use most. It was running slow, then shutdown on its own. Similar problems happened, couldnt boot to anything but single user mode, Target disk, or option boot.
Finally made it in after running the two commands suggested in safe mode. I logged in using a less used account and it ran normally. Ran Disk Utility to verify permissions, repair permissions, and verify HD. Permission found a bunch of things from the printer driver I recently installed. I'm afraid to shutdown. What should I do to troubleshoot the slow user acct while logged in normally? Man, I'm sorry to hear that—that sounds pretty rough. At this point, your best bet might be to take it to a Genius Bar.
Sounds like you could have a pretty big problem somewhere in there. Sorry I don't have any better advice. Let us know what you find out—this could be helpful to other people if you get it figured out! My computer is now in a continuous cycle. The der-di sound happens, the apple and status bar appears. After status bar fills in, blank grey screen, then the computer restarts.
It has been doing this for about 15 minutes. I think it is not working correctly. What is supposed to happen? Have you found a solution? That's not one that I've heard of. If the battery runs down and then the computer starts up again, that could potentially kick it out of the loop. I did the PRAM reset. It restarted and chimed again and I released all of the keys. Then the apple logo and progress bar appeared. Then a grey screen with nothing on it. And then it shutdown again. Is this normal? I got a Bluetooth speaker. When connected to my Macbook Pro it was cutting out and sometimes lagging.
Soooo annoying! But it worked fine with my iPhone, so I thought it couldn't be something wrong with the speaker itself. I thought there was nothing I could do until I got a new computer! That's a really good one to know. Just had a further recollection of the first incident above. If your internal fan refuses to switch itself off, this may be an SMC issue as that was a further symptom that was cured. I would imagine that if the SMC is relevant to whether or not a hardware component is present and identified, it may mean that until it has sorted its act out, the loading of drivers in whatever OS would be affected.
Certainly the Windows 7 startup was freezing on the inability to load a video driver. When I ran SMC reset, it went straight through. First time round, MAC OS was unaffected except that any reference to batteries or power information was missing from the System details , however second time this too failed to boot until SMC recycled. I have no doubts about what happened to my trusty old white macbook - still keeps going and has had a rebirth having installed an SSD drive 6 months ago. A white Macbook with an SSD? That's pretty awesome. Very cool idea.
It is becoming obvious to me that the SMC reboot can cure an assortment of problems so I am listing my two in case they help someone. What appears to happen is that something goes wrong with the hardware controller thingy which apart from causing lights not to come on can often prevent the OS loading. This can be Mac OS or Windows. Todays issue: This morning would boot in Windows safe mode but stumbled half way thru booting as a Mac.
Would not boot as normal Bootstrap Windows 7 No charger light issues but not talking to my monitor sharing device. Again an SMC reboot solved the problem and i can breathe a sigh of relief. How that could affevrt the SMC, I don't know! So, when all else fails, remove power supply, take the battery out, hold down the power button for 5 secs and put battery back in, plug in power supply and restart.
Not widely publicised enough. I wonder how many people have thrown their MACs away unnecessarilly? Thanks for sharing your experience! I don't have a lot of experience with dual-booting, but I wonder how using Windows could affect the SMC. If just doing a reset will solve the problem, it's not a big deal, but still an interesting issue.
Glad to know that the SMC reboot helped! I'm learning more and more all the time about the sorts of issues that it can help—sounds like a lot of people would have benefitted from it. Hopefully not too many replaced their computers because of those problems. I've got a weird one.
I did a Artic silver job on my heat sink in my MacBook pro and lowered my Temps while gaming to around 80c. It was mid 90s. That was a few weeks ago. I was having some ram leak issues, so today I did a pram and smc reset. Now while gaming my temps are in the mid 90s to c again. And I'm in a colder room.
That IS a weird one. If you can think of any changes you made that way, that would be a good place to start. Did you change any fan speed settings? Other than that, I have no idea. If anyone else has had this problem, hopefully they can share what they did to fix it! For about a month, I've been experiencing a number of the problems listed here, including the fan running at high speed, computer shutting down by itself, slow performance, and kernel crashes - on my Intel based Mac Pro tower.
Today I replaced the 3V battery on the mother board. Since the problems have been intermittent, it's too soon to say whether I'm out of the woods completely. But I will say without a doubt that the machine is noticeably faster and more responsive now. Ah, that's an interesting solution to the problem. I can see why a faulty battery on the motherboard would cause problems. While that's beyond my technical expertise, it's great to know that it's a potential solution to these types of problems.
And to address your subsequent comment, you're very welcome—I'm really glad to hear that you found it useful! My Mac book pro Retina 15 inch late 2. Would power on and would stay in the black screen for about 30 to 45 seconds before starting up. Took a systematic approach and used disk utility to verify and repair disk permissions. Had some issues with printer directories. Still had a issue. Verify Disk with Disk Utility. No issues found. Reset SMC. Tested restart still took time.
Reset PRAM. Tested restart and it fixed the issue. Glad to hear that the PRAM reset was helpful! Even if the other steps weren't crucial for solving that particular problem, it's still a good idea to go through them methodically, because you never know what could cause an issue next. Thanks so much for this! I'm still not really sure why this worked For the last few days my iMac 3. Click on a task in Things app get a "beach ball" wait for 30 seconds. Click on a paragraph in a Pages document get a "beach ball" wait for 30 seconds. Click on a link in Safari get a "beach ball" wait for 30 seconds.
But your hint on the weirdness of the Mac's behavior was a clue to try this The system has been up for a bit and it's like I have a new iMac again. I can't imagine how this stuff get's gunked up but thanks for sharing the gunk cleanup plan here Really glad that you found the article helpful! Your problem sounds really frustrating, and I'm sure it's a huge relief to have found a way to fix it. Tried resetting but did not work.. What should I do next? Have you also tried resetting the PRAM? That would be my first suggestion.
Beyond that, I'd say head to a Genius Bar. My Macbook Pro 13" does not sleep when the lid is shut, just the screen, hard drive and fans still running. Nothing is running in background. Any thoughts? That might help, though it sounds like you might have some sort of hardware issue—it's possible that the sensor that tells the computer it's closed is broken.
Might want to have that checked out. Let us know what you find out! I have to use these about every 6 months on my old PowerMac G5 because the firewire ports stop working "unable to list firewire devices". Always works fine after! That's a great way to use these resets. I'm always impressed at how many different sorts of problems they solve. Thanks for reading! Have a mini mac that we changed the resolution on and now the computer is locked and asks for us to change the computer screen resolution.
How do I fix the issue? Have you tried both of the resets detailed above? If you have, and that doesn't help, I'd recommend asking your question in the Answers section of the site. There are a lot of very technical people there that can help! I've definitely never heard of that. How old is your Pro? Hopefully someone else can chime in with some advice! I started having mouse issues last year jerky performance, jumping around, etc. Did the PRAM thing a few times and while it didn't eliminate the problem, it helped significantly and made the mac usable again.
After finally installing Mavericks in October, the problem returned, but until the other day it wasn't nearly as bad as before. Since the other day it's suddenly gotten much worse and I'm going to flush the PRAM again after writing this comment. Macs are basically built using roughly the same [cheap] components used for building PCs, which is the main reason components fail every now and then.
The main issue that slows down any OS is the age of the hard drive, and Macs are certainly not spared. SSDs nowadays almost eliminate this issue. On Mac the system itself rarely gives any errors, and "it just works" means that you can literally launch ALL the applications you have installed, at the same time, and they will all start with a very slight delay as they clutter toward the end of the list.
Good luck trying that on a Windoz PC, no matter how new, expensive and performant it is. So while we, dumb Mac people relax doing fun stuff on our Mac, you smart people have fun waiting for Windoz to just start…. Haha—well, in most cases, that may be true. But every once in a while, "it just works" needs a bit of a push in the right direction. Top Deals. Email Facebook Whatsapp Pinterest Twitter. This will sign you up to our newsletter Enter your Email.
Tanks alot! Hello, First time post, so my apologies if I have posted in the wrong area. Thanks in advance. Hi Dann, My laptop kept switching off and I took it to the Apple store. Thanks and Regards Shahin. Thanks so much, you saved me from eternal full power fan.
Hello, I realize this post is a couple of years old. Thank you, G. Thanks for the tip! I hadn't heard about that. That's definitely what you should do. I'm really glad you found it useful! It's an easy solution that more people should know about. I'd say it's definitely worth a shot. Have you tried it? I've had just about the exact same issue. Have you found any solutions? Did either of these resets work? Ah, I wasn't aware of that! Thanks for pointing that out—definitely a good thing to know. If I turn my computer off every night at the wall, does this achieve the same thing?
My "P" button and other buttons as? Sorry I don't have any better advice—that's a tough one! Nick: where do you stand? Many thanks. Unit is just a bit over a year old and out of warranty - go figure!! Did you have any luck fixing your issue. It sounds like I am having the same problem. The SMC thing did the trick. Thanks for sharing that tip! Many thanks for SMC instructions.
Just posting this as it may help others. An SMC reboot solved the issues and it has been working fine since then.
And I'm in a colder room Thoughts? By the way, Dann - thanks for this article, and for all of the comments. Thanks for sharing that strategy! Not sure if all the steps made a difference but it now starts up quickly again. Thanks for the information. Hi Dann, Thanks so much for this! Much much much appreciated! Sincerely, Jay. I am having the same issue.
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Any fixes? My macbook pro will only start after an SMC restart.