My Imac G5 wont turn on

Hi i need help, my computer is not working, it wont turn on?

Welcome to Discussions - can you be a little more specific - do you hear nothing at all when you turn it on?
In that case,
1. Turn off the computer by choosing Shut Down from the Apple menu, or by holding the power button until the computer turns off.
2. Unplug all cables from the computer, including the power cord.
3. Wait 10 seconds.
4. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
5. Let go of the power button.
6. Press the power button once more to start up your iMac.
Let us know if that works.

Similar Messages

IMac G5 wont turn on, strange clicking sound

Brought my iMac home from work (where it was working fine). Plugged it in and it wont turn on. I hear a strange clicking like sound and then that stops. Help!

Hello and Welcome to Apple Discussions.
You should try booting from the OS X install disc. Then open Disk Utility from the Utilities Menu (don't run the installer). I fear something has gone awry with your hard drive.
Let us know how you get on.
mrtotes

Bondi Blue iMac 266 wont turn on at all.

OK, WELLLLLLL, i know you guys probably see this kind of thing everyday. i looked around the forum through all those "imac wont start" pages and none help. mine seems to be a different problem. ill try to give as much info as possible.
ok, i push the main power button, it chimes, HD spins up, everything seems just fine then click click click, and the whole thing goes off (no it doesnt boot up and monitor is just off, the whole thing goes off). if i remember correctly, the power light never turned green, and if it did it was for a short time. after it does this, pressing the power button does NOTHING, no noise at all.
i have 2 other identical macs so ive done a little experimenting (the other two work flawlessly) first i tried just swapping the computer out (not the board, the whole slide out thing, cdrom, hd logic board and all) that didnt work. while i had it out, i tried the computer part from the problem mac, in the other case (the one i knew worked) it worked, but when i installed some updates and restarted, it wouldnt come back on. it did the same as the other the power button did nothing, no noise whatsoever.
so im confused as ever. seems like both parts are broken haha, the crt part AND the computer.
blah, im gonna fiddle around with it a little more see what i can do.
any ideas??? (ALSO, it says 10.2 but honestly i have no idea what os this imac has, but im pretty sure its 9.1)
iMac G3 (CRT) 266 MHz / 512K Cache/32 MB/ 6GB HD/24x CD-ROM/ RAGE PRO / 6MB SGRAM/ modem Mac OS X (10.2.x) Bondi Blue/Green W/E it is haha

ok well just to clarify it a little bit, i just took the board out unhooked it all removed battery memory, etc (not cpu though), put it back in, plugged it back up, hit the power button. it chimes, hard drive spins up, the light is orange the whole time, then right as the light turns solid green i hear a click and the whole thing goes off and wont turn back on. also, i tested the battery and i think its dead. would a dead battery cause all of this????

Intel Imac (2007) Wont turn on!

Hey guys, I've got a weird problem and I think I've tried all the troubleshooting solutions. My Imac won't turn on. It boots up and does the gong sound, then the screen goes black. I tried unplugging it, tried the command-option-p-r, tried removing and reinstalling the ram. It boots into windows with bootcamp no problem, but it won't go into Mac OS (Leapoard 10.5.5). Any suggestions? Please tell me I don't have to take it in or reinstall leopard!
Message was edited by: CamCunning

Hi,
have you got this sorted yet? I have a very similar problem with my intel iMac. It won't go any further than the white Apple screen and then the progress wheel spins and spins. Tried every boot key combination I can find, won't recognise (or boot up from) startup disk, my other (G4 iMac) won't launch it/mount it via Firewire. Have now used DiskWarrior five times but it seems to indicate no major problems... but the thing won't boot! Please let me know if you get any answers. I will do likewise.

Imac A1224 wont turn on!

I recently went to visit my Grandfather and he had a Imac A1224, which used to run fine, but since he doesn't really understand how to use it he stopped using it for a very long time, I was the only one using it, but only when I visited him so the computer started to get slower, and some lines appeared in the screen. Then after a while I came back, and the computer didn't turn on at all... (He lives in a very very humid area near the beach, I don't know if this is relevant).
Since I cant turn on the computer, I have no idea of what software its using, but here are the specs that I do know,
Imac 20"/2.4GHZ/1GB/320GB/SD/AP/BT
Model No.: A1224
Thank you!

Hi, Hokey1001.
Thank you for visiting Apple Support Communities.
I understand that your Grandfather's iMac will not power on. Here are a couple articles that will help your troubleshoot this issue.
If your Mac won't turn on
Mac OS X: Gray screen appears during startup
Cheers,
Jason H.

IMac g5 wont turn back on

Yesterday my iMac processor fan was spinning really loud so I shut down and I was going to give it a couple minutes to cool down. The fan stayed on for like a minute after it completely shutdown. When it was done, I tryed to turn it back on and nothing would happen.
It had stopped working before and I brought it into an Apple store. They replaced the motherboard and the power supply (so they told me) as it was eligible for repair under some recall thing. Shortly after I was upgrading the RAM and I noticed how poorly is was put back together. There was some missing screws and on the power supply there was three screws that was to hold it down but where just set in there and wherent tightened. It was clear it was poorly put back together and I wasnt that happy. I didnt make a fuss about it cause my mac was working again.
I put alot of money in to this mac and I dont need a new one. Its even running leopard! But it was just working fine less than a day ago and theres no reason I see that it shouldnt be working now. If this is because of what apple did to it when I brought it in for repairs then I want them to fix it back and do a proper job this time.
This mac needs to be fixed because its my main computer. It has all my music and pictures that I cant lose. Im a mac lover and after using this same computer both my sister and my brother bought macs. Im not going to go with anything else but this needs to be fixed.
If anybody knows what I should do or who I should call or someway to fix on my own without having to bring it back in to come back in even worse condition, any help will be appriciated. Thanks.

i forgot about this post. well my mac was fixed and im not happy about the service i received. i brought it into the apple store. they told me it was three year and a half years old so it wasnt covered under any warranty or repair program. they said they think its power supply and they would replace it and if it wasnt that they wouldnt charge for it. they called me a couple days later and said it was the logic board and it would cost $499. like 10/15 minutes after that they called again and said it was working and it was just the power supply. my brothers and my guess was they mixed up the original and new power supply and when they went to put the original power supply back in they put in the new one. ive yet to see good repair service from apple. maybe its just at this apple store. i dont plan to go back to that apple store. if i do go to another and get crappy service again i might not be buying from apple again.

My iMac fans wont turn on...

the cooling fans in my iMac aren't coming on and wondering if there is a setting to fix that...
any help appreciated, thanks!

run the apple hardware test http://support.apple.com/kb/ht1509

Does anyone know why the fan on my imac wont turn off?

does anyone know why the fan on my imac wont turn off?

Peter.L.
Try resetting the SMC, it may take 2-3 attempts. Please post back with the results. If you're not sure how please follow the instructions in Intel iMac SMC and PRAM resets

I have a imac g3 dv se, snow and after about 10minutes of it booting it makes a popping sound and the turns off, then it wont turn back on for another 5-10 minutes

i have a imac g3 dv se,500mhz, snow and after about 10minutes of it booting it makes a popping sound and the turns off, then it wont turn back on for another 5-10 minutes any suggestions?

Actually sounds like classic symptoms of a failing PAV (power-analog-video) on that model. Historically that's the weak spot in the G3 iMacs.
The lack of active cooling in the G3 iMac puts a lot of heat stress on this board and they eventually fail from overheating. Right now the board is still working as long as it's cool--it only fails when temps inside the computer rise.
About the only way to preserve the computer's life is to mount a 120mm fan directly on the case where the handle is--that's the exhaust port. The fan has to be positioned to PULL air out through that vent. It's an ugly solution to the eye but it has been done around here more than you would think.
Also make certain the bottom of the computer is not blocked. It the computer is sitting on a tablecloth or placemat, or there are loose papers on the desk under the case, it cannot get enough air into the bottom-mounted air intakes. Make/find some blocks to set the iMac a minimum of one inch (2.5CM) from the desk and move anything that can be "inhaled" from under the computer.
Even with such measures, the PAV board will eventually fail and be unrecoverable. It's a good time to start saving for a newer computer.

TS1367 my imac wont turn on.

my imac wont turn on. I have a 21.5 inch 2.5 ghz 500 gb imac and it wont turn on. I have tried resetting it thru SMC and still no luck. Please help.Thanks

Macbook community is here.
Did you try NVRAM resetting?
http://support.apple.com/kb/HT1379?viewlocale=en_US

My Imac Wont turn on

I dont get it I mean normally it works fine it is less then 2 months old and now it just wont turn on as if there is no power but it is plugged in correctly and I have tried unplugging it and that doesnt help at all

Contact Apple Care. I had a similar problem with my 20" Core Duo (2 GB RAM). After a month of owning the iMac, it turned out that my motherboard, AC/DC switch, and 1 GIG stick of RAM was bad. It was in the shop for 8 days. Now it runs like a champ. This was my first Mac by the way (long time PC-Windows user, er, hater).

Imac turned off and wont turn back on

imac suddenly turned off and wont turn back on.

Consider yourself lucky, this is EXACTLY why you are supposed to buy AppleCare, just one repair and you would have been ahead. You can buy AppleCare for $122, had you done that you would have been ahead
Part                    $169
Labor                  $145
Total                     $314
Applecare             ($122)
Difference                $192 in your pocket!

Imac beeps and wont turn on

Imac beeps and wont turn on

That usually means a memory fault or worse. Take it in for service.

Imac Wont Turn Off

Over the last few weeks my Imac will not turn off. When I shut it down it clears the desktop and then just leaves the wallpaper displayed, but never turns off. It eventually goes into sleep mode, but to turn it off I have to manually push the power button.

Do you have something hanging? Sometimes my browser will interfere. Do you get any kind of message?
In any case, try resetting your PRAM and see if that helps.

IMac won't turn on (has been shutting down abruptly in the past)

Okay, hi everyone.
I've got a second hand iMac G3. It had problems with the hard drive earlier, so that's been replaced...
In the past month and a bit my computer has been abruptly turning off (not completely, the white light of the power button is still on when this happens) with no aparant cause. The screen just goes black like turning of a TV screen and I can't do anything but turn it completely off by holding the power button.
After this happens I would try and turn it back on, almost imedeiatly, but it wouldn't turn on: The power button would light up, and blink just slightly, with a slight tick/beep sound to accompany it. This is only straight afterwards though, if I leave it for a while then boot it up, it will be fine.
A lot of the time this has happened when I've just walked away from the computer without it doing anything, other times it happens right in the middle of doing something..
I haven't followed up the problem due to not knowing what it was at first and lack of time, especially this past month since I've been away overseas.
And now it's the last time it's shut down on me. I tried to start it up again straight afterwards, and of course the power light blinked slightly along with the accompaning sound. Turned it off, tried again a bit later, still didn't work. Now when I try to turn it on I press the power button, it lights up for a second then turns off. So my computer wont turn on, and I don't know what to do.
Hope one of you guys know what the problem is.
I was looking at these threads and someone had a similar problem (http://discussions.apple.com/thread.jspa?threadID=1168792&tstart=0), something about the flyback transformer I think, whatever that is. Does anyhone think this could be the problem??
Another thing. Just days ago I was having problems burning cd's (probably still am), something about error code 0x8002006D and not being able to calibrate enough laser power. I don't know if this has anything to do with it...
Thanx for putting up with me, usually it's my dad but he's asleep sick..

No Kittytom is referring to his having found that his iMac wouldn't boot right side up but would upside down. Further circuit disturbance showed that it was bad soldering on the Flyback transformer that was the problem.
Also common were bad soldering on the HV capacitors in the area of the FT. Or just bad capacitors.
If your iMac had cap problems it would exibit that behavior.
Slow breakdown in the insulation of the FT would also act like that.
Richard

My Imac G5 wont turn on

Similar Messages

Maybe you are looking for