After power out mac wont start?

you will llikely have much more success asking in the forums for mac computers rather then the iphone ones
https://discussions.apple.com/community/desktop_computers
https://discussions.apple.com/community/notebooks

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After power failure iMac wont start up

I had an unexpected power outage yesterday and since that happened, I cannot get my iMac G5 to start up. I can only get as far as the gray screen. I've tried the command option P R and holding down the power button for 10 seconds and several other things, and I cant get beyond that gray screen. Im currently running Tiger on it and thought maybe I could reinstall the operating system? Ive had other power failures before and have never experienced anything like this that I couldnt start the computer. Any suggestions would be greatly appreciated! Thank you!

Hi Kelly,
Do you have your data backed up? If not, do this as soon as possible.
Have you disconnected your Mac from the wall plug and let it sit about 10 or 15 minutes?
Have you tried starting in safe mode?
Have you tried booting from your install disks and running DIsk Utility "Repair Disk"?
There is always the possibility of a power outage taking out a hard drive. Especially if it is writing at the time, I recently lost one the same way. Mine had bad blocks that could not be formatted out, so I had to replace it.
Hopefully your situation is not as bad. Let us know.

TS1411 My mac wont start. I turn on the power and I hear the boing sound and see the apple on a grey screen and then nothing. It goes blank

My Mac wont start up. I turn it on and hear the sound,sea grey screen withy he apple and then it turns off after a few seconds.

See this link for some tips.
http://support.apple.com/kb/TS2570">Mac OS X: Gray screen appears during startup

Battery full - Mac wont start. Heeeelp!

I just purchased my MacBook a month ago and I love it. Now Im having a problem...
I just had this problem today. The battery is full but my Mac wont start. But when I connect it to the power adaptor - it will start. Should I change something on the Energy saver option?
I've tried to remove the battery and placed it back, but the problem is still the same. I need your help please... thanks in advance.

Yup, looks like you've joined the Macbook Shutdown/won't boot club. Mine did the same after the random shutdown problem. I reset the PMU and NVRAM and PRAM and suddenly it wouldn't boot or operate on battery. Let me guess, it works fine on the adapter, but when you pull the plug it immediately shuts down, right? Even though the battery is fully charged? I'm also from DK. Did you buy yours at Humac? Mine is being repaired as we speak, well actually it's waiting for parts (new logic board and battery) but it's taking forever. Turned it in on july 25th and it is still waiting for parts. My advice is to demand a new one, don't hand it in for repair, because I seriously don't think they know what is wrong yet. What week is your Mac(Check the serial-number and post it)?
I've heard that a lot of people got the LB replaced, but soon after the problems started again.

My Mac wont start! what can i do?

My Mac wont start! After i restarted it for a update it just crash when i try to start it what can i do?

What and why aren't people doing something simple that has worked for the last 10 yrs:
Clone your system before you ever apply updates
Always have a working bootable backup (or two)
Keep the prior version on the shelf
Keep the combo updates around also.
It is not hard or rocket science.
There is no mechanism to undo rollback or restore check points. No utility to sandbox updates and revert as they sometimes go wrong. Things that are overdue.
MicroMat made having an "eDrive" partition s sinch to do and was its own recovery/emergency boot partition.
Carbon Copy Cloner has been around since 10.2.2, and later SuperDuper and others, Clone X etc.
A clean install is simple. Keeping your emergency boot drive for maintenance updated but with just Apple OS and essential drivers.
Use Safe Boot beforehand. People used AppleJack before updates or at first freeze or sign of trouble.
If you have more than enough room for TimeMachine, then a couple options:
Set aside 35GB is more than enough for emergency boot maintenance (Lion Recovery is nice but doesn't have everything your toolbox might want or need)...
Set up a partition large enough for your working system, again 40-80GB should be enough, you won't clone everything as you can leave your home account folders for TimeMachine if you want (but do want to copy your home Llibrary ~/Library). perfect job for Carbon Copy Cloner.
Setting up an external boot drive is 101 along with TimeMachine.
Not a good idea to have all your eggs in one basket two or more backup drives is better but...
TimeMachine - 350% your total files and changes needed to have file history archived,
Emergency OS
Clone OS
I prefer a 1.5TB minimum.would do fine for most.

Hi i am having a big trouble. MY mac wont start past the gray screen. I tried starting on safe boot, single user user mode , recovery mode. Everything it gets stuck on the gray screen i even tried reinstalling it , same thing what should i do?

MY mac wont start past the gray screen. I tried starting on safe boot, single user user mode , recovery mode. Everything it gets stuck on the gray screen i even tried reinstalling it , same thing what should i do? it lets me reinstall sometimes Sometimes.... it is weird.

orshikhfromsc,
boot from the Mac OS X Install DVD that originally came in the box with your MacBook Pro (by holding down the C key as it starts up). When the desktop appears, select Disk Utility from the Utilities menu and erase your internal disk. After it’s been erased, reformat it. After it’s been reformatted, exit Disk Utility and reïnstall the version of Mac OS X from that DVD onto your internal disk. After that version of Mac OS X has been reïnstalled, boot from your internal disk and run Software Update to get it up-to-date within that version; that should allow you to redownload and reïnstall Mavericks, if desired. If Mavericks is reïnstalled, run Software Update again to get it up to date.
If you no longer have the two grey installation DVDs, you can purchase a replacement set from either Apple or iFixit.

Power Mac wont start up

My power mac G5 wont start up. When i turn it on it comes up with a message saying you need to restart you computer and a load of script drops down in the top left hand corner. I cant get past it and tried everything. This happens everytime i turn it on.
HELP!!!!!

Hi-
Welcome to Discussions!
Have you-
1- Removed/disconnected all devices, except for keyboard, mouse and monitor?
2- Checked your panic log? You can check the kernel panic log any time that you must force restart your computer, using either the power button, interrupt button, or the Control-Command-power key combination. The kernel panic text is added to the log the next time you restart the computer, assuming that you have not reset PRAM at the same time (the kernel panic text is stored in PRAM until you restart). The file is named "panic.log", and it is located on your startup disk at: /Library/Logs/.
The panic report is also the "script" that is displayed when the "restart your computer" message appears. A copy of the report would help.
3- Tried a "safe boot"? Hold down the "shift" key when starting.
http://docs.info.apple.com/article.html?artnum=107393
4- After checking the panic log, try resetting the PRAM:
http://docs.info.apple.com/article.html?artnum=2238
What is a Kernel panic?
http://docs.info.apple.com/article.html?artnum=106227
Resolving Kernel panics:
http://www.thexlab.com/faqs/kernelpanics.html
Isolate kernel panics:
http://macosg.com/group/viewtopic.php?t=800
If you can get to the panic log, possibly during a safe boot, record the log, especially everything after "backtrace":
http://docs.info.apple.com/article.html?artnum=106228

My mac wont start up. please help

hi, i wanted to reinstall osx panter as my computer was running really slow. I put the disc in ad my mac restarted. It now wont start upat all. i've tried holding down shfit and c abd still nothing happns.I can not get the disc out as i have a mac mini and the eject button on the key board isnt working. Do you know what ii can do? When I press the power butten the apple logo comes up as normal but then nothing happens

To eject the CD, depress the mouse button at startup.
To boot from a CD, you depress/hold the "c" key at startup.
Look at these links.
The X Lab (Troubleshooting & Maintenance of OS X)
http://www.thexlab.com/faqs/faqs.html
Apple's Mac OS X Troubleshooting 101
http://www.apple.com/support/mac101/help/
OS X Routine Maintenance & Generic Troubleshooting
http://www.macattorney.com/ts.html
Prevent Mac Disasters
http://www.macworld.com/2005/01/features/preventmacdisasters/index.php
 Cheers, Tom

Why doesnt my computer reload pages any more after power out?

From time to time I have a power out and it used to be that, when I came back on, I would get a message saying oops, shall we reload the pages you were previously on? Which was great. Now, that isnt happening any more and I dont always remember some of the pages I was dealing with, so I need this feature back. What do I need to do. I am on Windows XP, have cleared my cache and cookies etc so please do ask me to do that again... thanks!

So after a crash, when you start Firefox, it just goes to your home page?
Is History > Restore Previous Session available to load up your pre-crash tabs?

"Stop running the script?" error after power-up and before starting Firefox

I have a Windows 7 x64 Enterprise system with Firefox 10.0.02. I'm getting the error
''''''Stop running this script?'''
'''A script on this page is causing your web browser to run slowly. If it continues to run, your computer may become unresponsive''''''
after I power up my PC, but before I open Firefox.
The error message, of course, does not identify what "this page" is, or tell anything about the script. The error message doesn't even say it's from Firefox (or Internet Explorer, for that matter).
I've done a virus scan, a spyware scan, and an adware scan, but the error keeps popping up.
Everything I've found on the web about this error assumes the problem is with Internet Explorer, but I don't use IE.
Suggestions?
Thanks.

Start/All programs/Startup has only McAfee Security Scan Plus. After power-up, clicking on Show Hidden Icons lists Sound Effect, McAfee Total Protection, Spybot-SD Resident, Ad-Aware, and a flag labeled "Solve PC issues: 1 message".
If I click the flag, it opens Windows Backup Troubleshooting Options. The message is "Check your backup settings. Windows cannot find the disk or network location where your backups are being saved". There are two options -- Change backup settings and Try to run backup again.
This is because I do not usually have the external herd drive I use for backup attached. I ignore this message.
Also, Sql Server 2008 R2 and Oracle 11gR2 start up, along with IIS. I use this PC for various courses.
FWIW, I've attached screen grabs of the Services and Processes from Windows Task Manager.
Thanks.

HT201263 my phone went suddenly went out and wont start even with connection to itunes

any suggestions ? the phone wont start even with itunes

Connect iPhone to Wall Charger for 10 minutes, it may turn ON itself. If still nothing, keep on charger and Reset, hold both home and power buttons for about 20 seconds until the iPhone begins to start.

TS1884 if i reinstrall mac os (snow lepord) will i loose my files,i have no backup and i mac wont start , safe mode never gets past spinning loading icon and i left it all night

if i reinstrall mac os (snow lepord) will i loose my files,or will a new partition be created?
some info,
i have no backup and my imac wont start , safe mode never gets past spinning loading icon and i left it all night yesterday,
when i used disk utility when booting from the install disk im told the "disk is damaged " but the repair utility wont run sand tells me to back up etc....
i cant make a new partition , and i cant make an image
please help

I fully agree with BDAqua.
Don't do anything with this Mac until you have an external disk which you can boot your Mac from.
Not all USB disks are easy to boot from - FireWire is better
When you have a suitable empty external disk I advise:
Put install DVD into damaged Mac
partitioning external disk into 2 volumes
install OS onto one volume of external disk
Don't import anything during install process - it may reintroduce historic problems
Boot external disk
Use finder to copy critical data from Mac to volume of external disk with OS
Use Carbon Copy Cloner to clone the whole Mac hard disk to the other external volume
Boot into installer DVD and erase Mac's internal disk
Partition internal disk into 2 volumes and install OSs as required

Mac wont start if ADC is not Connected??

I have a G4 Quicksilver Dual processor, with Tiger OSX installed on it. The video card installed has a ADC and VGA connector. I recently wanted to change from the ADC monitor to the VGA(new PC Monitor). But when the apple display is not plugged in the computer wont start.
Why
I have done all the system preference stuff and changing secondary to primary and even swapped video cards with another machine which i know works with the VGA connection.
Please Help
Cheers

I do not believe it's the Graphic Card, I think it would need either a new Logic Board or Power supply.
Which card is it exactly, some can run both monitors at once.
And there may be a slight possibility that a Keyboard like this with a "Power Key" at the top right corner may work to start it...
http://tinyurl.com/5s28kla

My start up disk is full and my mac wont start

Hi My start up disk is full and my computer wont start how do I get the system to reboot again?

Ensure that the external is correctly formatted
Drag and dropped the files
Test to be sure that the moved files work
Once the moved files work delete the originals
Allan

Power Failure....Mac wont start... is it PRAM battery??

please help!!
I have a Power Mac G4 which worked perfectly until last night.
We lost power in my whole town.
now the computer won't start. no chime, no power button light... no disks spining or HD noises...
I immediately reset the PMU.
nothing happened.
I read somewhere that you could switch the breaker on the power supply... but I don't know how.
I'm hoping its either a that or I need a new PRAM battery??
on a related note, I have another mac I just upgraded everything on. Logic board, processor, power supply... it won't start up either. though it does make the chime sound and the HD does make noise when I attempt to turn it on. I mention this because I wonder if its the same problem on both machines??
please help!! I'm running out of macs to work on!!! *smacks head*
thank you so much!!

I read the tutorial and following the advice, was able to detirmine it was a bad power supply! I replaced that and now the first mac works great!! thanks:D
but could I ask you about the other mac?? It was a very old single processor G4. with the amber and green lights in the power and sleep button... It worked fine but super slow and needed help. So I upgraded the logic board and processor and power supply so it is now a dual 500 MHz processor.
It turns on, makes the greeting chime sound and I can hear the parts working inside... the problem is the power light does not turn on and there is no display... I even changed the video card to assure it was a working one... but nothing.
I reset the CUDA and have replaced the battery.... maybe I'm just not thinking straight and have forgot something??
thanks for your help!!

After power out mac wont start?

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