Imac g5 will not turn on
I have a imac g5 and it will not turn on at all? i can hear a high pitched digital sound only for a second when i hit the power button.Any suggestions would really help
Try resetting the PRAM and the SMU
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Press and hold the power button for 5 seconds.
4. Release the power button.
5. Attach the computers power cable.
6. Press the power button to turn on the computer.
Can you see the iMac in Target Disk Mode?
Have you tried booting holding the Option key down? Can you boot from your install disc?
Please post back with results.
Similar Messages
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My iMac literally will not turn on (brand new)
My brand new 27 inch iMac is not even a few weeks old. I've had in about 2 weeks I'd say. I had everything set up on it, it was completely up to date, plus I installed all new software on it, each only allowing 1 install (Final Cut, iwork,etc.)
It started turning itself off every now and then and I figured it was my family doing it thinking I wasn't using it because I always kept it on and let it go into sleep.
It was on earlier today. I hit the mouse to wake it up and realized it wasn't on so I tried to turn it on. Nothing. Held the button in. Nothing. Checked the cord several times, checked the wall outlet, tried different outlets, removed all accessories, I tried everything I could that I found in troubleshooters. Absolutely nothing.
Needless to say I'm incredibly angry. This is a brand new computer and it will no longer TURN ON. I only spent the last two weeks personalizing it with programs, apps, information, everything and now it won't turn on! Ya, I could put the hard drive in a different computer but thats not the point. This is not a problem I should be having and I find it outrageous that its happening. What's going on here and how do I fix it?I'm having a very similar issue - not yet two week old iMac 27 shut off tonight and will not turn back on. I tried all the stuff found in the trouble shooting section (reset SMC, PRAM). Once,the fan powered up on high, but nothing else came on. Now I cannot get it to respond at all. I've checked the plugs, tried the power cord from my still working older iMac 20, but absolutely nothing. It shut off once as I was plugging in a powered 7 port USB hub, but I thought I may have bumped the power cord somehow and it shut down.
I restarted the computer, but couldn't find the items that were on the USB hub, a printer and external DVD drive, so tried the hub in a different USB port on the back of my Mac. As I plugged in the hub, the computer shut down, and I haven't been able to start it again. I had already used this hub on my iMac 27 - we moved the computer into another room and were putting everything back together.
Any ideas? -
EXTREME PROBLEM: iMac G5 will not turn on
Yesterday night my second iMac G5 (3 or 4 years old) froze while I was using Google Maps. The screen was completely frozen, I could not move the mouse or anything. After a while the fans suddenly began going very fast and were louder than I had ever heard before. I waited a while and then shut down the computer using the power button and restarted. The light came on as usual, but there was no "on" chime and the screen remained dark. I could hear the fans going very quietly, but nothing else happened, so I again shut down, this time removing and reconnecting the power cable before restarting. Same result, nothing. Each time I shut down I did hear an odd click noise, which sounded like a heavy clock tick, and it scared me because it's similar to the sound a heard the last time I had a problem with this computer. It was 2 or 3 years ago, and for an unknown reason the computer would shut itself down and eventually did not turn on. I ended up losing the entire hard drive. The sound was not exactly the same -- last time it happened, there was a steady ticking accompanied by a series of beeps, but I thought I would mention it.
Unfortunately I have nothing backed up and I'm not crazy about losing another hard drive. I continued trying to shut down and restart last night. One of the other times I tried to restart, I was able to get the computer on, only after having left the cable out for over five hours. However, after signing in, the computer froze again, this time on the login screen, just after it had accepted my password. I had to shut it down again after that, and it hasn't turned on since. I left the cable out for seven hours overnight, but this morning I had the same result, the computer would not turn on. I'm very worried because of this computer's history that this could be a hard drive killer. I would very much appreciate any assistance before having to take it in to our Apple Store. The odd thing is that prior to the crash, I had not installed any new software or done anything out-of-the-ordinary, though I do think that the hard drive was getting a little full. The computer was in great shape though as far as I knew. Thank you for any help!!!To start from the install disc, hold down the c key while booting. If that works, use Disk Utility:
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk.
If you can, then reboot from your internal drive and repair permissions.
I am also suspicious of the RAM, so would advise removing one stick at a time, and then alternating them to see if one of them is bad.
Also, find out how much free space you have on your hard drive, less that 10-15% will cause problems. -
24" iMac Screen will not turn on. HD runs though?
Has anyone else experienced this issue?
I'm running the latest OSX(leopard) and also have Windows XP (dual boot) installed.
Well seems like the iMac could not stand the stress of my gaming. I was playing HL2 and it just shut down. I had to get the applecare guys to come over and swap out the power supply. The slipped in a beefier one. It had more heat sinks and prongs sticking out of it(way better than the old one). Well, they fixed it and didn't need to swap out the Logic board since it turned on by just replacing the power supply.
Basically I'm using the computer, I'm not gaming or anything and out of no where the screen goes black. Power is good, HD is running, I can even hear my music still playing... Basically, It's as if someone pushed the power button on my LCD.
It came back on after a few bangs and then recently it went out again. Banging won't bring it back and I really don't want to break it. I don't want to have to call the applecare guys on this one hopefully someone out there knows an easy fix. Or maybe just like the power supply I should have switched the Logic board. Maybe it was different and updated as well.
Thanks for all the help.I am have experienced the same issue for the first time since I've installed the latest OSX(leopard) and ran the latest upgrade.
Basically I can use the computer remotely.
I have not call the applecare people yet.
Hopefully someone out there knows an easy fixl. -
27" imac will not turn disply on after waking up from sleeping
I have 27" imac with 2nd monitor attached. when in sleep mode the 2nd monitor will wake up but the imac itself will not turn the screen on. (what is funny is that i can log in but the only monitor i can actually see is my 2nd one.) i must play with the power button several times to either get the imac to reboot or to wake up. any fix out there?
I have had this same problem with my mid 27inch mac 2011. I recently yesterday took it to the genuis bar so they could try to give me a solution. I showed the technicians many threads with my same problem and they acted as if I was crazy and the issue was absurd/ non valid. This problem only started happening when I upgraded to lion. I suppose to get the coputer back in a couple of days. The onl god thing I had going was all the kernal panics that were listed because of the machine having to be restarted everytime. I will provide any informatio they give me.
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Airport card will not turn on after security update yesterday. worked normally (for the download of the update) until then. Wifi here works fine with my Macbook Pro right now so the issue is with the card / computer / software not the provider. Did the update change something?
OS 10.6.8 imac core duo. The indicator is on the tool bar but is empty.Airport card will not turn on after security update yesterday. worked normally (for the download of the update) until then. Wifi here works fine with my Macbook Pro right now so the issue is with the card / computer / software not the provider. Did the update change something?
OS 10.6.8 imac core duo. The indicator is on the tool bar but is empty. -
IMac Will Not Turn On (Even When Cool and SMC Reset)
Hi all.
I have recently had a VERY ANNOYING problem with my iMac. It will not turn on. No matter what. I have reset the SMC (unplug, wait whatever, plug back in etc.) and have cooled it down with time and a battery fan held up to the case, but it still will not turn on.
I am really getting sick of this iMac and feel like sending it back, but I know that there is some sort of easy fix out there somewhere. I do not want to take it to the Apple Store again (2 times in the 5 days Ive had it already).
I read somewhere else that the older iMacs have stuffed up logic boards, which causes the computer's 'max operating temperature' to be much lower than usual, causing unnecessary 'overheating'. Is there some way to disable auto-shutdowns because of temperature, or raise the maximum allowed?
Please help, I just need to upgrade my Snow Leopard to 10.6.8 (from 10.6.3) to fix some software problems!
Thank you so much!
-Michael
Oh yes, iMac stats:
1.5GB of RAM
2.0GHZ Intel Core 2 Duo processor
Early 2006 20" White iMac
Anything else you need to know about it, just ask!Ok, the Snow Leopard disc did not have the AHT thingy on it, but the Tiger one did. Currently running extended test. Had to reset the SMC to get the thing to turn on. I will do the test twice, then reset the PRAM and give you the results.
I have come to a conclusion about one thing: Old iMacs are very fussy and take a lot of work to keep them going, but are very satisfying to use. -
Is there a built in reset on an iMac that will not start? Was plugged into a GFI protected plug, it triped. Reset GFI plug is working, but can not turn on my iMAC
Paul's suggestion may work, but if the Hard Drive was writing when the power was cut abruptly, there may be data corruption, file index corruption or even physical damage to the drive as the read/write heads clash.
If the SMC reset doesn't work, first see if the installation DVD can be inserted. If it can, start up with the C key held down. OK the language screen, ignore the installer and select the Utilities menu at the top of the screen, open Disk Utility. Select the HD in te left pane and click repair (not repair permissions).
If you get a message that repairs were carried out, run the repair again until you either get "the volume xxxxx appears to be OK" or a message that repair can't be carried out.
If it won't boot to the disc, or the disc can't be inserted, try a single-user mode boot - hold down ⌘ and S on start up until the Unix prompt appears.
Type carefully this command
fsck -fy
then press return.
As before, if the prompt reappears with the message that repairs were carried out, run the check again until you either get "the volume xxxxx appears to be OK" or a message that repair can't be carried out (and assume the latter if it hasn't given an OK within 4 tries).
Type
reboot
and press return to attempt to start up normally.
If it still won't start, it's fair to say the HD is dead. -
Imac will not turn back on after being unplugged. Is there something I can do?
imac will not turn back on after being unplugged. Is there something I can do?
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
The 5 second timing is important to a successful reset. -
Like the title says it will not turn on, no liquid spilled or anything, I had used it as a computer for some years but as of 2013 I got a great macbook that was faster so I have only been using it as an external monitor for my Macbook(target display), and one night I powered off my laptop, and the iMac went black and never turned back on. It just stays black, no audible sounds through the speaker, no fans turning on, it just is completely dead like.
That only things I have tried is pressing the power button, and pressing and holding the power button, I have unplugged it for a minute and tried again, I have also left it unplugged overnight and tried with still nothing.
Since I have been using my macbook I can't remember what OS i was on, but I think it was just Mountain Lion.
SAVE ME BARRY!!!
Thanks Much
KickinWolfIf it makes no noise or has no graphics that show on the display this indicates it may be a power supply failure. Take it into an Apple Store or Apple Authorized Service Provider (AASP) to be fixed.
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G5 iMac Will Not Turn On - Power Supply Diagnosis?
My A1145 20" iSight PPC G5 iMac will not turn on - it doesn't respond to the power button. It had been shut down for a few days, I turned on the power and it booted up as normal, the desktop appeared and I was about to open the web browser when it suddenly went dead; the screen immediately turned off with no warning or noise. There is no fan or disk noise coming from it when the power lead is plugged in, just a very, very faint electronic hum from inside.
From reading various webpages, it seems possible that the power supply could have failed. Is there a simple way that I can diagnose this before deciding whether to attempt to replace it myself or not? I understand that there should be some diagnostic LEDs which could help identify a problem - I've removed the surround from the iMac and peeled back the black EMI film below the display but I'm not sure for what or where I should be looking (they seem to be easier to find on the 17" models).
Whilst I know a repair might not be cost-effective on such an old machine, I have 220GB of photographs, documents and music on it - none of which is backed-up - so I am very keen to get it working and backed-up as soon as possible.
Could anyone suggest how to diagnose the problem?Hi there:
My experience with Macintosh computers has not included the G5 iMac even though I almost got one to replace a failed-under-AppleCare iMac G4 17" 1.25GHz after three/four major failures and no local support.
...So, I think you may be able to pull the hard disk drive out of that computer and see if an external enclosure could allow you access those files IF the drive spins up at all. Sometimes odd things happen, and the G5 iMac had some history of capacitor and other failures that could be a problem. I see there are a few free information guides here that may be helpful: http://www.ifixit.com/Device/iMac_G5
If the battery on the logic board was dead, but the computer kept in running condition by leaving it plugged in, once the computer was left unplugged for a time then the device may fail to start. There is a way to reset the power management chip (different names for same idea as technology moved forward) and that could help in the process of troubleshooting most power related issues in the PPC Macs of later G3/G4/G5 design.
There are troubleshooting items of interest in here http://www.apple.com/support/imac/g5/ ie: what to do when your computer won't turn on...
Sorry to not be of direct help in this matter.
Good luck & happy computing! -
Hello,
My mac will not turn it 'y 3 short beep + 3 long bip + 3bip , can you help me please, i have one imac 27 i7.
Thank youHey ,
Thank for your replyI triedwith another new ram but still the same problem.
I will first explain how it began.
I put my imac in the box and then I store them in my attic.
Shook it possible that when I put my imac to loft the boot is clear due to cold ?
Thank you -
My imac will not turn over, what should I do
my imac will not turn over, what should I do
Just FYI,
You are not addressing Apple here.
People here who help troubleshoot and attempt to correctly answer technical questions in these Apple Support Communities are Apple users just like yourself.
There are two initial things you can try.
An NVRAM reset.
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. The logic board battery helps retain NVRAM/PRAM settings when your computer is shut down.
IF this fails to help reboot your iMac, you could try an SMC reset.
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
Check back if neither one of these solves your iMac's issues. -
My iMac will not turn on, the screen stays black, makes a whistling sound 3 short, 3 long, 3 short, well maintained while keeping on, what solution do you have?
For some reason its firmware seems to have been corrupted. Read:
About the Firmware Restoration CD (Intel-based Macs)
iMac (Mid 2007) and later models: About startup tones -
I blew a fuse in my house yesterday, and now my imac (desktop computer) will not turn on. How do I fix this without taking it to an Apple store genius bar?
cflannigan60 wrote:
There is no sound or attempt to boot
Sorry, your only alternative is to take it in for repair. While on your way stop at a office supply store and look into a UPS. if you don't want to go to the Apple Store you can use an AASP, you can locate one in your area by clicking AASP Locator.
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