IMac Intel :: Unable To Turn On System / General Power Was Turned Off For Some Minutes`
Jul 1, 2009
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.
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Feb 15, 2009
I 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)
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Jun 19, 2008
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)
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Jan 25, 2007
My parents recently bought an iMac. Yesterday my mom was playing a game when the computer froze. Neither force quit or holding the power button was doing anything so in her frustration she unplugged the system. Today, after plugging in the system again, it won't turn on.
I press the power button on the side of the wireless keyboard and the green light on the keyboard turns on for about 3 sec and then starts flashing. No fans start up and the screen does nothing.
Information:
iMac and Macbook Pro
Mac OS X (10.6.3)
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Apr 3, 2009
My girlfriend changed the user's name and the problems started (iMac wouldn't remeber system settings and denied access to some files and catalogs). When I wanted to fix the problem I probably made a mistake and changed the access settings of some files (finally even hard disk's settings). After this action my iMac doesn't start (the screen is white with the apple logo and nothing happens). Is there anybody who knows what to do now?
Information:
iMac
Mac OS X (10.6.3)
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Dec 3, 2007
Sometimes when I try to turn on my power mac G5 don't work. I have already changed the inside battery and also trying to reset the pmu. The only thing that works always is to disconnect the power cord from the back some minutes.
Information:
G5
Mac OS X (10.5.1)
PowerPC G5 (2.2)
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Sep 12, 2009
The other day my friend gave me his old macbook saying that it was broken and would only turn on sometimes. I have had this computer for 2 days and it has never turned on yet. He kept the hard drive so the machine does not currently have one. He also could not find the Mac OSX install CD, so I don't have one either. The battery is fully charged (the lights on the bottom of it are all on) and the light on the adapter is green. When I push the power button, nothing happens. No lights, no noise, nothing. I called apple and they told me that without a hard drive, the only way to test it would be to boot off of the Mac OSX disk by holding "c" when the computer is booting. The problem is, 1, I don't have a disk, and 2, how am I supposed to hold the c key while the computer is booting if it will not turn on? I have tried everything it says on the apple website and have tried it with different ram, with and a usb hard drive plugged in.
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Apr 21, 2012
I turned of my mac the other day, it took 5 minutes to turn on. Bluetooth wouldn't work and the keyboard and mouse can't connect without it how can I turn it on? I have a small USB mouse to scroll around but how can I turn it on without a keybord. I looked on the bluetooth menu it just said bluetooth no available.
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Apr 18, 2012
For some reason when i turned my imac on tonight my bluetooth is turned off and my wireless mouse is not recognized so i can't use it to turn my bluetooth back on. Not what do I do?
Info:
iMac, Mac OS X (10.7.3)
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Apr 19, 2009
I have a 17 Inch Intel-based IMac (2006). when I press the power button I can here and feel fans running but the Power Indicator Light turns on and the screen remains black. Nothing else happens. Not sure what I did. I didn't take anything apart. I checked over the whole compartment and all connectors appear to still be connected.
I did some research figured out how to disassemble the IMac, purchased a new hard drive, backed up the computer and when I took it all apart there was a third connector on the hard drive (temp sensor?). The new drive did not have this connector so instead of experimenting I put the computer all back together.
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Apr 10, 2012
My iMac desktop (purchased new in 2009) suddenly turned off this morning and won't respond to the power button even after the attempted SMH (right acronym?) reset.
Info:
iMac
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Oct 31, 2007
Just recently (this night,) whenever I would unplug my main USB hub, my iMac (Late 2006) would turn off (that is, instantly shut down as if the power had been disconnected). I don't know why this happened, but it turned on immediately afterward so I shrugged it off. The last time this happened, (the 4th time,) the iMac wouldn't turn back on at all.
It responds to power button presses, and you can hear the harddrive spinning up and the CD drive whirring and fans spinning. The sleep light in front stays on, but the display stays black, and it doesn't make the characteristic chime when it "turns on". In addition, it doesn't seem to be delivering power to USB devices, so there's no way that I can boot up from a startup disc or anything to see what's going on.
What do you guys think could be wrong with my computer? I doubt my non-existant applecare would cover anything of this sort, and I'm pretty sure that i'm SOL for hopes of a computer that just works. In addition, one other question. I was working on a VERY important school assignment at the time, (cliche, I know,) so is there any way I can connect another computer to my iMac so I can get my school assignment off of it?
Information:
G5 Intel iMac (Late 2006)
Mac OS X (10.6.4)
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Aug 24, 2014
processor 2.5 ghz core i5, 4 gb 13333 mhz ddr3.
when the computer is turned off it takes a long time for the apple logo to start when i power on. version is 10.9.4
Info:
iMac, OS X Mavericks (10.9.4)
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Mar 21, 2009
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)
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Feb 19, 2012
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
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Feb 1, 2009
I purchased a new optical drive from a reputable mac seller in my area and installed it due to the old one not reading disks anymore. I was very careful and followed the instructions according to an article I found on [URL]I found on xlr8your macHowever, now when I start the computer up, I get the question mark folder. I've done a little research but thought I' check the Macrumors forum before I spent all day on this. The store where I bought the new optical drive from doesn't open for another few hours so, here I am.
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May 5, 2010
I just obtained an Ibook G4, it was my cousins, and it had crashed, so weeks later he gave up and bought a IMac. Anyway, the Ibook will turn on, boot up like normal. I had it turned on for about 10-15 minutes, and it just powers off. I had it plugged in, and it obtained about 11% battery, so I don't think it dies from battery shortage. Something I did notice, the battery charger cord, from wall to brcik is a 250V wire, while the brick it self needs about 100Volts. It isn't the cord that came with the Ibook. Could this cause the Ibook to shut down?
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Jul 1, 2010
I tried the "search" box before making this thread. Would like to know if the power supply from a 2008 MacPro work on a 2006 MacPro. If anyone has tried this? My 2006 MacPro shut down suddenly and would not turn on. I use an APC UPS plugged on a power surge outlet. The Mac technician who examined the unit suspected it might be the power supply but Apple may not have in stock the power supply for the Ist Gen MacPro.
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Aug 20, 2014
my Macbook Pro is not powering up, Yesterday I connected a camera that has the USB cable with the little transformer. And the Computer suddenly turn off! It´s not working at all... I really don´t know what happened..These are some of the characteristics of the problem:
1) Not even the battery Light its on when I press the Power button.
2) Not even the Light in front of the Mac is on when I press the Power button.
3) There is not even a sound of the cooler fan or anything.
4) When I connect a the power cable the first 10 seconds the light of the cable is off... Then it appears a little "Orange intermittent" light but nothing more happens.
Info:
MacBook Pro, iOS 7.1
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Mar 8, 2007
I just aquired a PowerBook G4 (500Mhz) and it is dead. It will not turn on no matter what I try and when I plug in the power adaptor it glows a bright orange (almost red)...what does that mean?
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Apr 13, 2012
Using my iMac today working away and all of a sudden the screen went black, there was no power to the computer at all. I have checked the fuse and that is ok. I am getting power to everything else. I reset the SMC as per Apple instructions on their website. Again nothing.
I then left it turned off for a good 5 mins and then turned on the power. The fans turned on and the mac then chimed, the creen came on and I thought everything was ok. Then the computer turned off, fans and hard drive sped It didnt even start booting to the Apple logo or the log on screen.
I am thinking this is a power issue within the computer and this will need to be replaced. I was wondering if anyone else has had this problem. My iMac is a 2008 21inch iMac. It is connected to a APC UPS which again all power ports are working, as I have tested that with a desk lamp. What I do normally is turn the UPS when I have shutdown my Mac in the evening and then power it up next day. While the UPS is doing is power self test I then boot the Mac, I am wondering if I should just leave the UPS turned on all the time and just unplug my iMac when I am not using it. Sometimes I do pop it to sleep last thing at night, but recently I just turn it off.
It has had heavy use so I am wondering if it is indeed curtains and I need to buy a new iMac. Maybe it is an excuse to buy a 27inch one! (Would be nice)
Info:
iMac, Mac OS X (10.7.2)
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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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May 25, 2012
my 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)
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Dec 4, 2014
Recently my 27" iMac keeps shutting down after 15 or 20 min use. It's very irritating and it's take awhile to restart again.
Info:
iMac, iOS 8.1.1
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Nov 30, 2009
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?
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Apr 9, 2012
Last Thursday I down loaded software updates from apple and have been losing power very quickly ever since. It just seems like as soon as I remove the power cord I lose power with in three minutes.
Info:
MacBook, iOS 5.0.1, purchased feb 2009
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Jun 19, 2014
We have iMacs and Macbook pros at work but we need to connect to them from home. I am not concerned with getting a VPN connection. That part is taken care of. Problem is I need a client such as a Windows Remote Desktop Connection. Where if I connect to the Mac from home it just allows me to use the session and not take up a lot of bandwidth for screen sharing. People in the office do not need to know what project i'm working on.
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Aug 26, 2009
I have lots of old files left over from installed programs etc. What like a general clean to make things seem fresh again!
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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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Jun 21, 2012
My imac does not turn on, not even make the noise when booting up. The only sign of life is the blinking light that tells you is on.
Info:
iMac, iOS 5.1
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