Software :: G5 IMac Not Starting Up/after A Few Seconds The IMac Stops The Start-up Routine
Nov 16, 2008
I have a G5 iMac - 2.1 ghz, 20", 250gb hd and 3gb ram, but it has been having problems starting up and it is also going to sleep midway through a task or at random times totally unprompted.
It now almost never starts up first time (I keep the iMac mains power lead always connected and the mains electricity supply turned on at all times now)- sometimes I will get the 'Start-up Chime' and then the cooling fans start spinning very loudly and then after a few seconds the iMac stops the start-up routine, but often when I try to start-up I don't even get the 'Start-up Chime' and I have to leave it for some time before trying again.
I can also now only get the iMac to run as a Firewire Target Disc by starting up with the T key held down and then using an old G4 (400mhz) Powerbook Titanium as the screen/keyboard by using the iMac HD as the startup disc for the Powerbook but this is obviously just a temporary work around.
I have also tried backing up all my data, and reinstalling the Mac OS X onto the iMac but the iMac still will not start-up normal and I still have to use it just as a Firewire HD.
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Jul 1, 2014
Upon starting My Intel iMac, it stops at the Apple logo. I have restarted it several times and tried to hold down the "r" key while starting to enter the restore mode...nothing but the Apple logo. OSX 10.7.5
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Dec 5, 2014
I have a 2011 iMac and it internet connects and after 10 seconds it completely stops and I can't do anything
Info:
iMac
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Jun 17, 2014
On starting up, my macbook pro shuts down after 25 seconds of booting up. The time bar comes on for a while before it simply goes blank and switches off without any notification. Battery appears charged. Could it be a virus?
Info:
MacBook Pro (13-inch Late 2011), iOS 7.1.1
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Jun 11, 2009
I have an Intel IMAC, which is now out of warranty as I have had it for 16 months (and I was dumb enough not to get AppleCare). A few days back, my computer would not startup and everytime I hit the power button, I would hear some spinning noise but no chime from the iMAC. Yesterday, I tried it again and this time I heard the chime but the monitor did not start. I was then able to SSH into the MAC and see that it is indeed connected to the network and booted up, but the screen is still dead. Any ideas what I should do before the painful trip to the apple store ?
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Jun 4, 2014
My laptop is not starting up it does the loading bar for 5 seconds and then shuts down. What is the issue and how can I get it to run?
Info:
MacBook Pro (15-inch Mid 2012)
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Jan 4, 2010
Yes I plugged in the block heater.....
Tried to reset the SMC (apple's only advice)
Tried to kick it into boot menu... no luck
managed to boot to Leopard install disk. backed into Disk Utility.... Verify System Disk produces: "Invalid B-tree node size...Disk Verify / Repair fail".
too bad too sad... no more information.
I don't know enough to know whether this is a SW failure or a drive failure, and my searches has led me here.
Also, my very first post in a forum, I read the rules and I hope I have found the right forum for this query.
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May 4, 2012
my g5 imac wil show the start light, so I know it works, it won't gong or start up!
Info:iMac, Mac OS X (10.5.8), G5
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Nov 21, 2009
For the first 39 seconds the screen white. It takes another 25 seconds for the imac to be in watcha you call it--standby mode. In all 64 seconds. Wonder how long it takes the i7?
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Nov 30, 2009
I can't find any other thread out there about this. I was wondering what the fix for when my iMac 27 c2d comes out of sleep and pinwheels for about 4-5 sec. It only started doing this when I updated to 10.6.2
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Feb 10, 2010
My screen savers (any of them) only run for a couple of seconds before returning me to the desktop or any applications running before I turn it on.
I've set the top right corner of my screen (expose') to be the Hot Corner for turning on the screen saver.
That works normally, but it just keeps on turning off shortly after =[
Testing the screen savers in System Preferences make it work but I really don't want to go all the way in there every time to turn it on...
I don't know what's wrong.
##UPDATE## I've found the answer to my problem. It lies in an app called Caffeine. I can either click it so it shows an empty cup or update the app to a more friendly version to my OSX and quit it.
I hope this can help anyone in trouble because this is a really understated issue (at least with Snow Leopard! since it has compatibility problems with the old Caffeine app).
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Aug 9, 2009
How do i get the imac to fully startup?
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Mar 14, 2010
We had a pretty bad storm here last night and we had lost power. At the time my imac was on and obviously turned off when we lost power. A few moments after we lost power we regained power, but now my imac won't start. Any ideas of what have my happened and what I can do it try to fix it>
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Oct 1, 2009
did a quick search on Apple, and here but didn't turn up much of anything useful. I've got a friend with an iMac that won't boot up. Pressing the power button doesn't seem to do much of anything. I've tried unplugging the power cord, and re-plugging it, but alas, I got the fan to rev up for a second and then blahh, nothing again. It's a 20" model with the black bezel. Not entirely sure of the system specs, I only got a couple minutes with it last night. Do these machines have any common problems like this?
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Mar 16, 2010
My brothers imac with not start up. He just needs to get some files off of it.
Is is possible to use the hard drive, by installing it on my G4
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Mar 23, 2010
Every 10 seconds there is a clicking sound coming out of the iMac i5, I have a CD loaded at the moment and a USB Stick behind. This is Standby and it should be absolutely quite. I am typing this on my PC next to it and hear the click every 10-20 seconds. Very annoying and an absolute Dealbreaker. This is a 2000 USD machine!
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Mar 18, 2012
I have an old iMac from circa 2003 that I just reformatted for my kids to use. Since the reformat I have not been able to get the computer to connect to the Airport Extreme on my Time Machine. Now my Time Machine was set to WPA2 so I changed it to a straight WEP and the iMac can handle that but it keeps dropping the connection every 15 to 20 seconds. Can I get the iMac to use WPA2 and or how can I stop the iMac from rejected the Wi-Fi connection every few seconds? Â
Info:
iMac, Mac OS X (10.4), Connecting to Time Machine
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Dec 6, 2014
My iMac (27", late 2013, Yosemite) starts using the power button. A black screen, white Apple logo and progress bar appear. When progress is at ca. 50% the computer powers off.
Info:
iMac, OS X Yosemite (10.10.1)
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Mar 20, 2009
I got my new 24" iMac ~2 weeks ago, and it's AMAZING compared to my MB... Except the fact that the computer will randomly wake up or start up in the middle of the night. The first night I had it home, it turned on 7 times! The next night, it did it once and I turned it off. It stayed off. The day after that, I turned it off when I went to bed. At 4 AM I hear "DONG!!!!!!!!" Ugh. I get up, and turn it off, only to have it start up at 5 AM. x_x I spent the next day looking for answers, I turned off wake for ethernet network something, and turned off screen sharing, quit all programs, and turned off the Airport card. Still, at 3 AM, it wakes me up. I turn put my jacket over it so I can get some sleep. I've been fighting it every night. I'm tired of it. Yesterday I reset the SMC and PRAM, and it still woke from sleep.
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May 17, 2012
This happened many months ago but my imac evetnually started. Today I have tried several times to start my imac and can't get beyond the white screen.I get the mac sound at when it is trying to start up but then freezes at the white screen.
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Jun 4, 2012
restore OS X Lion when starting up iMac
Info:iMac (24-inch Early 2008), Mac OS X (10.7.3)
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Jun 4, 2014
Just happening within the last couple weeks... 2.9GHz i5 iMac running 10.9.3..Energy Saver settings set to default from day 1..Display is set to turn off after 10 minutes, put hard disks to sleep when possible, and wake for network access.The screen used to pop right back on after hitting the keyboard or moving the bluetooth mouse... Now it still sometimes comes right back and other times take up to 15 seconds. Just happening the last 2-3 weeks.
Info:
iMac, OS X Mavericks (10.9.3)
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Mar 17, 2012
My IMAC will not boot up. It was working fine this morning and I was working away then suddenly a MUSIC file wouldnt play, so I restarted the computer, and this is what happens now...It starts out like normal but after a period of showing me the APPLE logo it goes to the "NO" symbol. url...
Info:
iMac, Mac OS X (10.7.3), Snow Leopard
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May 9, 2012
my iMac doesn't startup, it stops in the grey apple and the spinning gear !!!
Info:
iMac, Mac OS X (10.6.8)
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Jan 26, 2010
When I start my iMac, a few programs start along with the computer. I don't want any programs starting by default. I have reviewed the Preferences of these programs, and see nothing to uncheck regarding auto startup. And I don't see anything related to this in System Preferences. How I can start the computer without programs starting with it?
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Dec 19, 2009
I hear 3 beeping sounds when i start my mac OS X. It just shows a blank light blue screen. I have not updated it in a long time. I have a Imac "20" inch
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Aug 19, 2009
I have an older imac and after installing a mac update I was required to reboot after install.
It froze at the beginning of start up at the apple logo. The spinning icon is the only indication on the screen as if it was working on loading. There is noise from the imac as if it is starting up but nothing happens.
I have let it run hoping it would eventually start. But nothing.
IMAC DV400 is the model number.
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Jun 21, 2012
computer won't start. tried unplugging and holding in start button. After about a half hour and unplugging a few times, finally got it going. Imac G5
Info:
iMac, MacOS X (10.5)
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Dec 27, 2010
ive had a look around an only found bits an pieces relating to this but nothing really specific.i have an imac 3.06ghz, 4gb memory. less than a year old its been making some noises recently (like a downloading sound for afew seconds every so often) which happens every 30 seconds or so. this happens even when theres no programs open and im not connected to the internet!!! ive only really noticed it doing this the last month or so to be honest.
the computer has also been re-formated about a month ago as it was passed onto me from a family member, an im wondering if its got anything to do with that?is this a normal thing for macs an maybe i just havent noticed it before, or does it sound like something is wrong??
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Apr 15, 2012
I am having trouble starting my 21" iMac running Snow Leopard after I had shared the HD with my MB-Pro. I had removed the "everyone - Read Only" rights on the HD (on the iMac) and opened sharing so my MB could attach to it. Grey Apple Logo and progress circle upon startup now.Can changing these rights cause the system to not boot? I can go into single user mode but I am not sure what to do then.
Info:
iMac, Mac OS X (10.7)
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