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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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)
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
View 1 Replies View RelatedMy 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.
View 7 Replies View RelatedWhile 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
i just got my new imac 2 days ago. I was wondering is there another to turn on the power without pressing the power from button? (cuz i remember u can power on from the keyboard b4)
View 7 Replies View Relateda 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?
View 3 Replies View Relatedmy G5 was in sleep mode during 2 power outages. She will not turn back on, have tried unplgging, wait then replugging and turning powerstrip back on. Also tried holding down command,option, p & r keys along w/ powerbutton..I'm on my kindle fire rt now, but definitely need my Mac back up.
Info:
iMac, Mac OS X (10.4)
Just got a replacement imac 27 stock C2D yesterday for a defective one I had earlier, however, I couldn't get this new one to turn on till just a few hours ago. I just figured out the power button needs quite of bit of pressure to turn on. Seemingly just pressing it until it clicks isn't enough. Should this be looked at or is this normal?
View 5 Replies View RelatedI just bought my Intel-based iMac last night and it took forever to turn on out of the box. I guess I made a mistake by doing a "soft" power down last night, because this morning it will NOT turn on. I've tried using the power button and waiting. I've tried unplugging and plugging it back in, and then using the power button, and waiting. Nothing works. I've been a PC user for 20 years and just bought this, my first Mac, last night. I think I've made a huge mistake! How the heck do you turn these things on????
Information:
iMac Intel Based
Mac OS X (10.6.4)
I have a 20" intel-based dual core Mac which i have had for about since early 2006, i haven't had any big issues with it until a few days ago when it suddenly shut itself down and refused to power back up. I ran through the checklist that Apple Support provides, including resetting the SMC by unplugging everything and waiting 15 seconds or so but none of it worked. Eventually I just left the power cord unplugged overnight and in the morning I plugged it back in.
After having the power cord plugged in for a few hours and the machine turned off, i tried pressing the power button again and to my amazement it powered back on! Immediately i ran the TechTool Deluxe software that came with my extended protection plan (now expired) and everything was fine. Later that night however, I had left my computer on for a few hours before returning to it and realizing it had shut itself off again. Now I am back to where I started, going through the checklist provided by Apple and am really starting to get concerned. Does anyone know of anything else I can do, short of taking it in to an Apple store? Or is something needed to be replaced?
Information:
IMAC-Intel (Early 2006)
Mac OS X (10.4.11)
my iMac won't turn on. The day before yesterday happened the same thing, but after a few tries with the power button, it eventually turned on - and all ok yesterday. Both the day before yesterday and today, the general power was turned off for some minutes, but the iMac wasn't running. So now, I've tried to reset the SMC, removing everything attached, but nothing.
At least I can clearly hear the tic tic tic button, probably of the timer, because I set up a schedule to let it turn on at a certain hour. What can I do? It's a white iMac, never had a problem.
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.
View 1 Replies View Related2008 mac-book pro, started having these warning screens come up by which it states that i have to turn off/ restart ( only option as no other controls work). These became more frequent until yesterday i turned it off as per warning to then restart but now it wont turn on at all.
All that happens now is that when press the power button the fans come on for about 5-10 seconds and then it just all abruptly turns off, the screen stays blank and there is also no start up sound either.
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.
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.
View 1 Replies View RelatedWhile 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)
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
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iMac, Mac OS X (10.7.4)
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)
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
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
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
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pro, Mac OS X (10.6.4)
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.)
Older Power Mac G5 Dual Quad will not turn on. Just turned off while working. Good news everything backed up. Can anyone offer help to solve problem??
Info:
PowerMac
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
Recently, I was using my powermac (About 1-2 weeks ago) and I went on vacation. I came back and it won't turn on. Everything's plugged in, and the power buttons and lights on the mobo light up. I can hear the HD spin up, and begin to read. But, I don't get any video. I've read that it could be the battery and so i replaced it, but it still won't turn on. I've reset the CUDA, installed different RAM, took out expansion cards, but it still won't turn on. Also, when I press the power button it immediately shuts off, which it never used to do. I usually have to wait at least 3-4 seconds of holding it down.
Info:
PowerMac G3 (b&w), Mac OS X (10.4.11)
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.
The string of problems I've encountered started a few days ago. I normally let my imac go to sleep by itself but, on this occasion I told it to sleep via the apple menu. When I awoke the imac the screen was frozen. No mouse movement, no clock movement, nothing. At this point I turned the power off and back on again. It didn't get past the white screen (before the gray with apple logo). I then tried resetting the PRAM, booting in safe mode, and booting from my os disc. Nothing worked.
After several tens of tries it magically booted. It stayed active long enough for me to back up all my data (transferring at least 100GB), reformat the hdd, reinstall leapord, transfer data back, and use it until I let it sleep again.
I recently purchased a Power Mac G5 Dual 2GHz from ebay. I tested the computer a couple of weeks ago when I first got it, but wasn't able to actually set it up with all of my music gear until last night. I installed Logic Studio and a driver for my firewire audio interface and started downloading all of the updates. While downloading the updates the computer just turned off. I wasn't in the room, but when I came back in it was totally off. I tried to turn it back on by using the power button in the front and it won't turn on. It clicks once then clicks again a few seconds later, but no light and no power. Everything else that is plugged into the same power strip turns on. I reset the PMU, and even the graphics card just to make sure. I still get nothing. I have exhausted apples support page, and I don't know what else to do.
View 5 Replies View RelatedDo not turn on the computer fan
Info:
MacBook Pro
