So I have a MBP C2D from early 2007 that up until recently has been running fine. The battery died long ago, so I keep it plugged into the wall which was fine until yesterday. What started happening is my MBP would shut off completely (as if the battery died) and then when I try starting it back up, it would randomly shut off at some point during the boot process (not at one specific point; sometimes it barely makes it into OSX and other times it does not).
Anyone know what could be the problem? I have not installed anything new or changed any settings that could effect the system. To me it feels like the AC Adapter isn't giving the machine enough power, but I don't know for sure.
I have an old macbook 13" (2006) thats running10.6.8Â that I use from time to time and it works fine,my problem is that when I shut down or the battery runs flat it will not boot without resetting"Â pram" etc.and even that is very hit and miss, it wakes from sleep without any problem.
I've been looking around on a few forums, and I've tried to reset PMU, hold the programmer key, take out battery let it be, external screen,... None of it worked for me. I have tried to install Os X Jaguar without upgrading firmware, so it told me that it needed to upgrade. But I can't do that since it doesn't boot anymore. I tried disconnecting the harddrive and boot it without it, it still turns off. [URl]
My iMac 27 late 2010 does not shut down when shut down in the normal way. I have to shut down with the push button. I have tried disconnecting all the usb connected hardware still no use. Can any body help.I have OS Lion 10.7.3?
My system has randomly shut down twice now in the last two days. Dual G5 2.3. I checked the console log, which I know very little about, and it said this:
localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -122
Two questions-
what's the -122 code mean?
Do you think resetting the PMU would be the solution to this?
I have a 15.4 in macbook pro, intel core 2 duo 2.2 GHz 2 Gb RAM 120 GB HD and I bought it almost a year ago. I purchased leopard for Christmas and installed it. I also bought a western digital 500 gb mybook to use with time machine. Since around that time, my computer sporadically will refuse to turn off. Everything will run as if it is going to turn off, and then the screen goes blank and the computer stalls and will not shut off. The num lock and caps lock keys do not light up by my lap fan keeps running. To turn it off I have to hold down the power button for five seconds. I already brought my laptop to the apple store and they sent it to wherever and it still has been doing this. I also ran a series of hardware resets that the tech line gave me.
I have a MBA, and I do notice, more often than I had expected, that I'm experiencing core shutdown. I do agree with a previous post that it could, at least partially, be related to the video card/driver. If I decide to run a YouTube video while having Outlook open in VMWare Fusion, I'll usually shutdown a core. Other combinations of applications can do it too, but this combo is almost guaranteed.
My question is: Is there a time where core shutdown is good, for example, to preserve the integrity of the hardware? I don't want to go into the Genius bar complaining if all they're going to say is "Well look what you're running! Of course it'll shutdown!"
i am unable to shutdown my MAC normally. I always have to force shutdown. The issue has started after one of the framework update. Now-a-days even the processors heats up very quickly.
i was wondering what the general consensus was for turning wifi on and off. i normally shut down my MBP during the night, and turn my wifi off as well.
is it worth to turn the wifi off at all, or can i just leave it on? Â
the reason i ask is because it would be nice to just power on and have it set up without taking the extra (5 seconds) to turn it on.
My MacBook is about a year old. It has never had a problem with power or battery issues before, but now if it is not plugged in, it will work for a little bit and then randomly shut down (even with a full charge).
After using time machine or anything plugged into my USB ports my machine will not shutdown normally, i have to hold down the power button and force the shutdown, or just sit and look at a spinning wheel.
Info:MacBookPro, Mac OS X (10.7.3), This also happened whilst operating
My MacBook Pro (approx. 4 months old) running latest version of Lion now has a completely black screen except for the spinning beach all. It doesn't respond to any keyboard input. It doesn't respond to the power button. It's been unplugged for 8Â hours, but still keeps churning.
i am a teacher in a school where we have been told that every student must shut down each MacBook or iMac when finished. It is not unusual for 6-8 classes a day to do this. I have said putting the MacBooks to sleep would be better for them. Some of the laptops are taking 5 minutes to restart. Can't find data from Apple to support my concerns.
I have a new MBP 13". When I'm using the Mac it's mostly connected to AC. Over night it's mostly sleeping without the AC connected. My question is, if I should let it sleep at night or should I shut down the Mac regarding to maximize the battery life?
I think I am getting the well publicized core shutdown with my MBA but I can't be sure. I will be doing a task and things like expose will be as smooth as can be but then all of a sudden it slows to a complete halt, everything lags, expose is jerky, cmd+tab takes ages to switch application and keystrokes such as typing take seconds to appear. For a good 5+ mins the computer becomes totally useless. Is this what a core shutdown does to the computer? Is there an application I can use to monitor how many cores are running? I looked in the activity monitor but couldn't find information about how many cores are running. I have used smc control to monitor my cpu temp and I sometimes turn the exhaust up to max rpm before I watch a video or do something that has been causing the core shutdown (if thats what it is) in an attempt to try and keep the cpu cooler.
I have read about coolbook but I don't fancy paying for an application to stop a fault that shouldn't be happening. Are Apple fixing these faults? Is this a problem with ALL MacBook Airs? I ask this because there seem to be two groups of people. People that don't experience this (or say they don't, maybe don't want to admit a fault with there new shiny toy?) and people who have had 3-4 machines all with the same problem. I would love to know if this is indeed a core shutdown fault and if Apple replace it for me as it is becoming increasingly frustrating and not acceptable for a $1200 computer. Would also like to hear from people that have had the core shutdown fault fixed or replaced from Apple and if it has fixed the problem, or if it still exists.
It's been happening for a while now and I had hoped 10.5.3 would fix. When I choose to restart or shutdown, 90% of the time it hangs on grey screen after logging out and I have to hold down power button to shutdown. No apps hanging. Also have problem where when I open the cover to bring my MBA out of standby mode, I'll be presented with the logon screen. I'll type my password and my screen goes blank like it's gone back to sleep but the power light is fully lit. Have to close cover, wait till it goes on standby, then open cover to bring up password logon again. Should I reinstall OS X again?
I can't turn it on. I don't know what happened. I was just using it this morning, when suddenly it shuts down. I've been trying to turn it on, but it won't. do you have any idea what i should do?
My MacBook shuts down when the battery drains all the way down. I'm pretty sure back in the days of PPC lappies, they went to sleep before the battery died. Is it supposed to shut down, or is something goofed?
My Macbook Pro sometimes freezes when I try to shut down. If I hold the 'on' button for a few secs it switches off. Doesn't seem to do any harm but wonder why it happens?
I've got a 17" Macbook Pro from May of 2007 that is serving me well now in my last year of college. The battery health began to deteriorate last year so I replaced it with a new one from Apple (a hefty $120).
Recently, the past two times that I have left for class (with my MBP fully charged) it has drained while shutdown (completely turned off NOT just "asleep"). When I say it drains, I mean it has roughly 2-5% of its battery life left giving me about 20 minutes of power until I get back home for the day.
Here's the kicker: the battery is in good condition with plenty of cycles left (see system profile for power below.)
Any thoughts? Try a new battery? Could it be the charger? What system components, if any, run during a complete shutdown and could these be malfunctioning?
System Profile - Power
Battery Information:
Model Information: Manufacturer:SMP Device name:ASMB014 Pack Lot Code:0002 PCB Lot Code:0000 Firmware Version:0110 Hardware Revision:0500 Cell Revision:0102 Charge Information: Charge remaining (mAh):4523 Fully charged:No Charging:Yes Full charge capacity (mAh):5865 Health Information: Cycle count:220 Condition:Normal Battery Installed:Yes Amperage (mA):2534 Voltage (mV):10818
I'm unable to shut down or restart my Macbook Pro (10.6.2) the problem only occurs when I have two users logged in. I type username and password as requested and hit shutdown or return and it just does nothing, the username and password box remains on the screen. I have just run Disk Warrior through the machine to no avail.
