Mac Mini :: Can't Login After Power Failure
Mar 20, 2012
While working last night I got a short power failure in the house. Right after that when I tried to start my mac mini again, it booted up to the log in scren ok, but when I try to login, a white screen appears and then it goes right back to the login screen.Â
Things I have tried: Tried to fix disk in recovery, no errors were found.used resetpassword in Terminal for my user account I can't get into safe mode, I'm trying to hold the shift and release it before progress bar, but safe mode doesn't come up?
Info:
Mac mini, Mac OS X (10.7.3)
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May 29, 2012
a friend recently gave me a g5 power mac that had some issues, and the failure was described as intermittant. The machine supposedly would work properly when booted and start freezing up after time, but if turned on the next day it would work properly for some time. I assumed it was an overheating issue, but apperently there is more to the picture. I have tried booting the machine quite a few times and the display always reads no signal. The machine sounds as if it were booting normally, but there is not output. At first I assumed it was my display cable, which was a DVI-D single link, however the DVI-D dual link cable leads to the same result. Is it nessicary to have a DVI-I cable? None of the error LEDs light up on the motherboard. After doing some hunting I haven't found anyone with the same issue, but I am wondering if I should assume the graphics card is dead. What steps do I need to take to isolate a graphics card failure in a power mac g5?
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Dec 10, 2014
iMessage, or message whatever it's called. It's message app but when I try to login shows iMessage screen.Up till last night messages was working fine on my Yosemite Mac, iPod touch and my old iPod touch.
I did the 8.1.2 update on my iPod and when I started my Mac up it asked for an iMessage log in, never did this before. Typed the correct password and it just sits there with the gear wheel spinning beside my Apple id, tried changing DNS, deleted keychain passwords, switched messages off/on on the the other devices as well as iCloud. The other devices still work on the same router. Tried switching from wired, which it usually operates on to wi-fi only and deleted iMessages preferences, nothing.
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Apr 9, 2012
I have a G5 Power Mac dual 1.8 running 10.5.8. It powers a radio stations automation system. I have it set to power on after a power failure but for some reason it will not power on. I have to come t the station and reboot the system manually.
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Dec 7, 2014
After updating my Macbook to 10.10.1, My Windows 7 machine can't log in to the shared folders.
I keep getting an error: " Log in failure: unknowing username or bad password "Â
No settings have been changed on my Windows Machine and everything was working fine till updating my Macbook to 10.10.1Â
However my Macbook can still connect to the shared folders on my Windows 7 Machine.... Also I have checked the LmCompatibilityLevel on Windows and all seems okay.
Info:
MacBook Pro, OS X Yosemite (10.10.1), Mid 2012
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Jul 21, 2008
My problem is that in a morning when i turn on my mac G5, it lights and then fade and also make a sound like PAC.
But is it from the power supply and also how to avoid this accident.
I just send it to the seller Apple to repair it, but i need to wait, maybe got it within 1 or 2 weeks.
my Second problem is that if at night, i let my mac G5 auto boot, anyone can tell me if it may got this problem same the first one when my G5 turn on by itself.
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Apr 22, 2008
G4 733 D/A , 10.4.11. This morning there was a few second power failure according to my wife. Ther G4 shut down from the power failure. I didn't have "restart after power failure" selected in the Energy Saver prefs. I restarted the G4 when zi got home and after I was done with it, selected SLEEP from the menu. The G4 wouldn't respond to sleep. I logged out and tried SLEEP from another user acc't and from the login screen. I then went into the Energy Saver prefs, made sure everything was as I wanted ( 5 min display sleep, 10 min HD sleep, and "put disk to sleep whenever possible". I then rebooted and sleep still wouldn't function.
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May 22, 2012
why i have to unplug the power cable from the back of my imac after every power failure at my home to get the imac to boot up. I've tried resetting the surge protecter and unplugging there. However, the only option is to unplug the cord from the back of the monitor/imac before it will boot up.Â
Info:
iMac, Mac OS X (10.7.4)
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Jan 4, 2010
Have a white iMac (2Ghz Core Duo, 20" screen). It has started misbehaving slightly: it usually takes two or more tries to start from off, and has to have a hard restart if I've let it go to sleep on its own.If I have made it sleep myself, by pressing the power button, it always comes back, but it refuses to do so if I let it sleep on its own.My local reseller suggests that it may be a logic board fault: I'll have to pay ?70 to diagnose this and, if that's the case, the repair is uneconomic, meaning I've also wasted
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Aug 6, 2010
I left my iMac on overnight last night to finish downloading some stuff. I woke up and all our clocks are flashing, so we must've had a blackout. Anyway, I went to check the progress of my downloads, and the iMac was off. I pushed the power button and nothing happened. No fan noise, HDD noise, nothing. I've been trying for almost two hours now and nothing is working.
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Feb 19, 2012
I have a PowerMac G5 computer, running OSX Version 10.4.11. Up until yesterday, the computer performed flawlessly. Suddenly, yesterday, I get a message from Firefox (the browser I usually use), telling me that my Flash Player had been disabled because I did not have the most up-to-date version of Adobe Flash Player. When I investigated, I found out that the newest version was NOT compatible with my computer. So I tried reinstalling the most recent version of Adobe Flash Player that IS compatible and have had no success. When I go in to System Preferences and click on the Adobe Flash Player pane (under other), I get a message reading "could not load Adobe Flash Player." Someone out there must know how to handle this. I'm not in a position to purchase a new computer, and I desperately need Flash Player for some of the websites I use quite often.
Info:PowerMac, Mac OS X (10.4.11)
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Apr 22, 2012
what to do when Mac OS X v10.7 Lion download stops, because of interruption of power supply?
Info:
iMac, Mac OS X (10.6.8), Trying download Mac OS X 10.7Lion
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Sep 6, 2009
My IMac crashes sometimes very suddenly, like in a power failure. It doesn't force quit or shut down, it just goes like somebody pulled the plug. It's usually possible to start it up again after 30minutes or an hour. The plug and lead seem to be fine. I tested it on another mac. The obvious suspicion would be overheating, but how can that be caused so suddenly (and how can I fix it)? It's an IMac Intel core duo, 20", 2 ghz, 2gb ram from 2006. I'm running Mac OS X (10.4.11) 2006.
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Mar 15, 2012
Cannot turn on iMac duo core after power failure. Tried plug - unplug. What's next?
Info:
iMac 2 GHz Intel Core Duo, Mac OS X (10.4.9)
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Sep 9, 2014
I have a 2011 MacBook Pro 15 inch, and the Messages application has been installed and functioning well for the past year. A few hours ago, my MacBook ran out of battery and died on me. This caused a number of applications to function incorrectly, however, after a restart all of the applications EXCEPT Messages work correctly. Now whenever I start up the messages app and try to send a message to one of my contacts, their name appears in red and I receive a message that says "###-###-#### is not registered with iMessage." This occurs even though the contacts DO have iMessage and were working in the past. None of the contacts work currently.Â
I tried signing out of Messages, restarting my computer, restarting iMessage from my phone, deleting my plist file, but none of these seem to alleviate the issue.
Info:
MacBook Pro, iOS 7.1.2
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Dec 8, 2014
While installing windows 7 via bootcamp tonight, I suffered a power failure a minute or two into installation. Upon reboot, I have only a black screen with flashing curse. I have attempted to reboot in safe mode, recovery mode and diagnostic mode, but I think the machine is not recognizing the keyboard.
Info:
iMac, OS X Yosemite (10.10.1), 2014 21.5" Fusion Drive
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Sep 7, 2009
Here's an interesting problem.
I've got *some* DVD and CD backups that I've made on a PowerBook G4 and an iBook G4. They work fine on the laptops, however when I pop the discs into my intel mac mini the disc comes up as blank and I am prompted to tell the computer what I want to do with it. The discs are not blank.
Other discs (commercial and DVD/CD backup discs) work fine on the mini.
Any ideas as to what may be causing this? (Discs are CD-R and DVD-R, not RWs or +R)
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May 3, 2012
I have macbook pro and use lion. i have maxell dvd+r 4.7 dvd disk which actually works when burning jpeg files. now i want to burn several pdf files that total small 108.6 megabytes. i create a burn file, put the pdf files in it select burn, select the slowest burn speed and i get the message: The disc can’t be burned, because the device failed to calibrate the laser power level for this media.Â
Info:
pro, Mac OS X (10.6.4)
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Feb 3, 2010
I'm going to be setting up a dedicated server on a LAN soon. It's only going to be accessed by a handful of computers, all of which will be controlled by the client. Based on cost and complexity of other options, we've decided on a normal Mini, rather than a Mini Server or an Xserve.
The one feature that concerns us, which is included with the Xserve but not on either Mini, is the redundant power supply. We would like to avoid downtime in the event of a power supply failure. Are there any third party options to this?
(A battery backup with a limited run time would not be sufficient.)
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Jan 3, 2011
I just installed a new ADSL modem/WiFi router from my ISP and now the Mini I have connected to the ADSL modem via ethernet cable has no Airport signal. With the previous ADSL modem/WiFi router I had to use internet sharing over airport from the Mini in order to get WiFi on my other computers. The old modem had WiFi, but I could only get one computer to connect to it, for all the other computers I just used internet sharing. The new modem/WiFi router will let all my computers onto the network, which is great.
My problem is that I use Mobile Air Mouse to use my iPhone as a mouse for the Mini. Since the modem/router upgrade I can't do that.
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Feb 1, 2012
My perfectly wonderful Mini has started doing the following, in this order:
First, I could no longer double click on a word but the right button functions still worked (and yes, I did try another mouse and had the same problem, then I switched the mouse preference to double click with the right button, but had the same problem). This started two evenings ago.
Second, the next morning, I suddenly couldn't drag the cursor across a word, or a sentence, etc. Now it was really getting annoying, because in my work I paste and copy a lot, and this caused me much, much extra work, so it's not a minor gripe.
Then, by that afternoon, I had a complete system crash. The whole screen froze. I tried turning off my Mini with the power button (which I hated because I know you're not supposed to), but the screen remained frozen.
At that point, done disk repair thing from my original instal DVD. Well, it unfroze the screen, but did not fix the mouse/cursor problem. Clear the PRam. That still didn't work. The next morning (today), it crashed almost immediately. Again, totally frozen. This time, I reinstalled the entire system from the instal disk. No luck.
I came across an app I'd bought the last time I'd had bad Mini problems (and had forgotten), called Disk Warrior, so I tried that. Well, it did find three unfixable, corrupt .plist files that it said could cause system disruption. I thought I'd found the problems. So I deleted all of them AND their apps, downloaded fresh copies of the apps, and restarted. Still same problems.
So, I ran Disk Warrior again, and it reported those same three corrupt plist files. Then I realized it was reporting the ones in the trash, so I emptied the trash, ran Disk Warrior again, and it said NO problems. Restarted and tried to highlight some text, and it worked! But it still wouldn't double click.
Info:
Mac mini (Mid 2010), Mac OS X (10.6.8), Mac lover since the SE
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May 13, 2012
Macbook Pro won't boot. Symptoms preceding failure included failure to open Firefox. When trying to cold boot I can get as far as the start-up sound, the Apple logo, and the spinning whieel (spins for a bit but not for very long) and then major failure. Not running Liom.
Info:
imac 10.1, Mac OS X (10.6.2), also have macbook pro running os 10.5
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Apr 2, 2010
My Mac is OS X version 10.5.8
It powers down constantly and I was advised to check the box that restarts it automatically after power failure in order begin to ascertain what the problem is.
I cannot find the darned box to check!
I looked in the "energy saver" category where my computer tells me the box is, but there's no option anywhere to be seen.
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Mar 16, 2009
Is it just mine or does this new mini power connector come out too easily? I have to be very careful removing the ethernet cable or FW800 cable lest the power connector slip out and cause a hard shutdown. It's a bit annoying.
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May 3, 2012
Up until this past Tuesday, I was able to print from Mac Mini with my HP Laserjet 1200 printer connected to my Airport.Now I receive the following message: Now my printer keeps pausing itself every time I try to print a document. If I unpause it it prints a page saying "operation timed out" Then when I click on HP Officejet -> Printer ->Network Diagnostic I see that everything is green lit with the exception of "Server" which is saying failed and I get this message: Network Diagnostic was able to connect to the Internet, but not to the server "HP Officejet J5700 series.pdl-datastream.tcp.local.". This could be caused by problems with the server, or an Internet problem between computer and server. I've done the unplugging Aiport and Printer, deleting and reinstalling System Preferences.
Info:
Mac mini, Mac OS X (10.5.8)
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Jun 22, 2012
I would like to combine my wifes and my login into one login, so all our pictures, files etc. are in one place.
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Nov 30, 2014
I recently tried to install OS X Yosemite. unfortunately during the install my laptop was unplugged and the installation failed mid way through. Each time I start my mac I get to login screen and after logging in get an error message and told to restart and try again - which does not resolve the issue. Guest login do work to the safari screen.
The error message reads: You need to restart your computer. Hold down the power button until it turns off, then Press the power button again.  Behind system code, including:Â
panic(CPU 2 caller 0xffffff 80005418bf):
"process 1 exec of /sbin/launchd failed, errno 45"@/sourcecache/xnu/xnu-1699.32.7/bsd/kern/kern_exec.c:3546
Debugger called: <panic>
Backtrace (CPU 2), Frame: Return Address
0Xffffff80e8423e00 : 0xffffff8000220792
7 more lInes like the one aboveÂ
BSD process name corresponding to current thread: initÂ
Info:
MacBook Pro (15-inch Late 2011)
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Jul 22, 2010
my mac mini says "The connection to [URL] was interrupted while the page was loading." every time i click 'log in' on any site,
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May 5, 2012
Cannot type in login box without restarting computer.
Info:iPad, iOS 4.3
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Jun 23, 2012
I have a Mac mini, Mac OS X (10.6.8) and i am trying to set up an account for someone who regularly logs onto my guest account. I am doing this so whenever they are here and need to use my computer, they can use it without using my account( the admin account) or guest account( where the have to log into guest account and work on whatever it is they needed to do, then unfortuanatly have to erase all files from that day so they can log out ) Â Â Â Â
I still want it to be an account for that person to have when they are here, but NOT guest account. Just an additional account.Â
Info:
Mac mini, Mac OS X (10.6.8)
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