My Intel Imac isn't turning on

When I turn on my intel mac it goes makes the start up noice and show a white screen and stays like that for hours and does nothing. And I have unplugged it and everything can someone please tell me how to fix this?

Unbakedcooke wrote:
When I turn on my intel mac it goes makes the start up noice and show a white screen and stays like that for hours and does nothing. And I have unplugged it and everything can someone please tell me how to fix this?
Welcome to the Apple forums:
You clearly have a hardware problem.
If you insert your Leoard DVD can you boot into it using the "C" key at boot?
If not, I suggest bringing your box to the nearest Apple service center.

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My Intel imac won't turn on

Hi! My intel Imac suddenly, and without apparent reason, shut down, and won't turn back on. When I press the power button, sometimes it makes a small noise, but then nothing happens. I have unplugged all the cables, and also tried resetting the SMC, and still nothing. I see some of you have had a similar problem, I don't know if any of you found out the reason why this happens. The computer is almost brand new (I've had it for 3 months) and up until now I had had no problem with it.
Thank you!
Nadia

You've (unfortunately) joined the growing list of users that are having problems with their iMac. Mine was purchased in September 2007 and I went through two bad ones before I finally kept one until last week.
Last week: the iMac totally died. It's at the Apple store getting the logic board and PSU replaced. Look through this forum and you'll see a number of other users with random reboots and dead iMacs.

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.

Intel iMac will not turn on. Won't boot up from install disc either.

The last couple of weeks I have been noticing lag, freeze and graphical issues with my Intel iMac -- ever since I installed a video game called Warcraft 3. My computer's specs are way beyond the recommended specs of the game (it was released in 2002) but even when playing the game I would have graphic and freeze issues. It would get to the point where I would have to power off my computer and power it back on to get out of the freeze.
Tonight when it froze my computer, my whole screen was given a "digital green" tint. I can't figure out any other way to describe it. I powered the computer off, turned it back on and the usual Apple that pops up when the computer starts up had the same "digital green" lines through it. After that it goes to a grey screen and sits there.
I put in the install discs that came with the computer and powered it back on -- same scenario would play out. It was like it wasn't reading the discs. I turned it off again and held down "Option" when powering it on and it asked me what I wanted to boot from: the hard drive or the install disc (the green tint was gone). I chose hard drive and my computer booted up like normal finally, but once the desktop screen finished loading, the whole screen turned green and froze again. I powered down, turned it on with "option" again and chose to boot from the install disc (now the hard drive and install disc labels had the green tint too). Nothing happened. The computer went right back to a grey screen and stayed there.
Any ideas what the problem could be and how I might fix this?

Hello fallingisfunny
As described in the link below, run the Apple Hardware Test a and see if it detects a hardware issue! If a hardware problem is found then you will need to take the iMac in for service!
http://support.apple.com/kb/HT1509
Apple support will probably have you do an *Archive and Install* or *Erase and Install* from the OS X Install Disk. If you have everything backed-up, you might give that a run as per the article in the next link!
http://support.apple.com/kb/HT1544?viewlocale=en_US
Message was edited by: den.thed
Man the forum is acting funky tonight, I've bee trying to get in and post a reply for 20 min's.
Dennis

Intel iMac will not turn on

So here's the deal: The other day I noticed things were acting buggy on my Intel Core Duo iMac (the white, matte-screen one). Performing simple tasks like opening a folder or window caused the spinning beach ball for at least 30 seconds or more. Email wouldn't open without the spinning beach ball going on for at least a minute or two. Also, there is an intermittent click coming from inside the computer. Maybe every minute or two--click.
So I restart. Things seem fine. But then the hang ups start again. So I boot from my Snow Leopard disks and run Disk Utility. Verifying permissions takes a very long time but I finally get to repair permissions. Then I try to verify the disk and repair but I get an error message in red saying something like "this disk cannot be repaired". So I shut down and try to start up from Disk Warrior. Once the Disk Warrior window comes up the iMac shuts down. I try this a couple of times.
I check the forum and try the suggestions of holding down P and R (or something like that), unplugging and pressing the "on" button before plugging it back in. Nothing works. I get to the gray screen and it shuts itself off.
After that I try to start it up as usual and when the gray screen comes up I have an apple logo and beneath that a status bar and as soon as the status bar is complete the computer shuts off. I try this a couple of times. Finally it won't even start up at all. It's as if it's not even plugged in. No chime, no internal noise, no "on" indicator light, nothing.
If my hard drive has failed, does this mean my computer will not even turn on? If my hard drive has failed and I could turn my computer on, what would I typically see? A blank screen? A question mark?
Any ideas or suggestions?

Update: So I took my iMac to the Apple store and they ordered a power supply and a new hard drive. The plan was to install the power supply and see if that's all it needed. If the hard drive was dead they would then install the drive. The wanted about $95 for the power supply, which isn't bad, and $248 for a 320 GB hard drive. Installation was going to be around $85. After I placed the order I went home and checked prices online and found I could get a 1TB hard drive for less than $120! And a 500 GB for around $60! Why would Apple charge me $248 for a 320 GB drive? During this time I also found a local Mac repair shop that was willing to install the power supply for me and, if needed, a new hard drive that I could purchase much less than Apple's price. So the parts came in and I went to the Apple store thinking I could purchase the power supply and walk out. No dice. Apple would not sell the power supply to me. They insisted they can only sell it to me if they swap it out for the one in my iMac. I told the guy, "that's okay, I only want to buy the power supply". He sort of apologized and said they can not do that. ***? Why wouldn't they sell something to a customer willing to buy it?
Long story short, all of my business is now going to the local Mac repair shop and not the Apple store. I'll never take anything that's not in warranty to the Apple store again. And I'm sure they couldn't care less.

Dual Core Intel iMac 10.5.5 suddenly sees no firewire video decks

We have 7 iMacs used in a general area for students to digitize. This week NONE of them will see any sort of video deck or camera through the firewire port.
I did repair permissions, unplugged everything for 10 minutes (including power), zapped the pram. They do not see a DSR-11 or JVC BR-50 deck nor a DVX100, AG-DV60 camera.(this is in either iMovie or FCP 6.0.5 and yes, I tried replacing firewire cables)
I could see one having a problem, but 7 all at once? We are just back from break and did the 10.5.5 upgrade before we left fir Christmas. (We also did this to 18 G5 Intel power macs and they seem to be fine.)
Any thoughts here folks? This definitely seems to be in the software somewhere, either with quicktime or Leopard since neither iMovie or FCP will recognize anything.

Do you happen to have any other firewire devices on these iMacs? Even FW800? Although rarely mentioned, I have seen several Intel iMacs that would turn a deaf ear to DV devices when external drives were also attached simultaneously. Often removing the external drive(s) would resolve the issue, sometimes a reboot was also required.
I have heard that a firewire hub in series may help to resolve the issue, and that it may be related to a timing or power problem on the firewire controller chip in these iMacs. I had also read it may lie in the DV drivers, because someone who booted his iMac into XP had no issues capturing to Premiere or Vegas!
Since the FW 400 and 800 connectors are both driven from this same bus chip, I have to do camcorder captures to the internal drive, then copy them to FW800 raid once the camera is unplugged.
I have been very frustrated by this in the year I've had this iMac, since I bought it to run FCP. Doing video you always need more storage space, and this is quite a limitation... I haven't tried 10.4.x to see if that resolves it; if Snow Leopard corrects it I will be the first to buy it!

My imac won't turn on a1311 intel core i3 late 2010

Hey, today after a power off my iMac won't turn on, I've tried reseting it plugging it and holding the power button but nothing happens, im really worried, i have to finish an edition and have al native videos there... HELP!

check out this discussion.
you should definitely get a decent UPS to protect your investment.
something like the APC Back-UPS ES 700 should suffice.

27" intel imac audio isn't working

I recently had my 27" intel imac logic board replaced.
But when i got it home i noticed that there was a start up sound but all other sounds were disabbled. Atleast they look disabled.
When i press the sound key(f12) there is a small icon indicating that there is no audio available. I thought that it might be some drivers they forgot to install, so i did a system update. still no sound.
My second guess is that they forgot to attach some sort of audio cable.
any advice would be much appreciated.

thanks for the reply.
unfortunetly under the Built-in Output, none of the mute boxes are checked.
the source is set to "digital out" which doesn't seem right, and there are no other options for source which also seems wrong.

Intel iMac Power / Overheat issue?

Hi there,
I have an Intel iMac from 2006. About 2 years ago it started to just turn itself off randomly as if there was a power failure. When it does, the only way to power it back up is to switch it off at the plug, switch it back on and press the power button (strangely) twice. I have noticed it seems to be temperature related - when my iMac reaches around 78C (which I'm pretty sure it should be able to handle fine?) it tends to be in the danger zone and at any minute can switch itself off.
I've got around this by using smcFan Control - which thankfully displays the temperature in the menu bar meaning when I hit around 72C I can whack the fans up to full blast to keep the temperature down. Being a sound studio computer - the hum of the fans really isn't ideal, but it at least makes my computer usable. However, I'm currently in the middle of a big project on Logic and I've had to turn my room into a fridge (window open-more clothes on) to be able to work on it as all the processing involved heats it up to 75C+ in no time.
I was hoping someone could shed some light on this or at least tell me if I am right in thinking that 78C is nothing really and the iMac should deal with it easily.
I have seen tons of posts regarding the G5 iMac power problems and similar problems with the intel iMacs - I've done all the hardware resets (PRAM, SMC, PMU) as suggested in these forums but nothing has helped.
I have had the power supply changed in the past (before this problem arose) as one day it just went kaput. Don't know if that makes any difference but I'm pretty sure that the problem started a little while after the replacement was installed.
Thanks in advance!
Message was edited by: Lee_Head

LR is a Universal Binary app. YOu're good to go. I did a migration from iBook to MacBook recently with no issues.
Don
Don Ricklin, MacBook 1.83Ghz Duo 2 Core running 10.4.9 & Win XP, Pentax *ist D
http://donricklin.blogspot.com/

Periodic iChat audio dropouts over Airport on Intel iMac

When chatting with iChat, an audio dropout occurs exactly every 5 minutes on my new Intel iMac. iChat's Connection Doctor shows total loss of receive audio signal quality (and a halving of the receive bit rate) for about 5-10 seconds. Then normal operation resumes for 5 minutes and the problem repeats. This only occurs while using iChat over Airport. I can also force this audio dropout behavior at any time by clicking on the Airport status icon on the menubar. I wonder if others are having this problem or is this an isolated problem with my computer?
It took me a while to recognize that this wasn't a network problem causing occasional audio dropouts. My wireless D-Link router isn't the culprit as my G4 iMac and G3 laptop don't exhibit the problem through the router. Also, when connecting from the Intel iMac to any of the other nearby Macs using a computer to computer Bonjour wireless connection (thus eliminating the router) the dropouts do occur. After connecting, the dropout always occurs at a random time between 0 and 5 minutes but thereafter it occurs at exactly 5 minute intervals. If I click on the Airport status icon to force the audio dropout, the next dropout will occur 5 minutes later.
I also have a new Intel Mac Mini which doesn't exhibit the periodic audio dropout problem but does have a similar audio dropout whenever I click on the Airport status icon. The dropout lasts longer on the Mini - about 15 seconds average before the audio signal quality fully recovers. Because the periodic dropout doesn't happen on the Mini, it isn't really an operational problem, but it is instructive to note that only the Intel Macs exhibit this particular behavior.
In troubleshooting the iMac, I have turned off all timing related items that I can think of including, Mail (check manually), Set Date and Time Automatically (OFF), all sleep, hard drive and screen timers OFF, all iCal reminders OFF, etc. I have also turned all Dashboard Widgets OFF, corrected permissions, tried a different user ID, reset the NVRAM and SMC. I have even tried setting the iChat app to open as a Rosetta app . Nothing has solved this problem yet.
The iMac is a dual core 20" with 1.5 GB of RAM and the Mini is a dual core with 512 MB of RAM. Both are running Tiger 10.4.5 Wireless signal level in all tests is 100 percent.
Thanks for any help.
Bill

OK, I have my Intel iMac connected to the Internet via an Ethernet converter. What this means is that the iMac is connected via Ethernet cable to the Ethernet converter, which, in turn, communicates wirelessly with a wireless router.
This seems to clearly solve the wireless connection audio issue as the Intel iMac thinks it has only an Ethernet connection. There is no audio dropout after five minutes or so, but there may be other Mac to Mac connection issues related to Intel Macs.
I'm going to run with this connection for awhile to see if there are other problems, but this seems to be a good workaround for the moment. I'm using a Buffalo Technology WLI-TX4-G54HP Ethernet converter, which costs about $60 USD at most online vendors in the US.
Although $60 may seem like a lot of money to spend on an Apple-created problem, using the Buffalo high power device is almost surely going to provide significantly better wireless range. This increased range advantage may be enough to offset a large part or all of the $60 cost.

Intel imac won't boot with usb powered hub attached

My intel imac has started to not boot with a powered (have tried a variety of them) attached. Just stops at the white screen. Also, after I attach the hubs (2, both powered) the computer got into spurts when it just kicks everything attached to the hubs off saying that something pulled too much power. At other times it is fine with the same set up. I've tried resetting the PRam but it didn't make any difference.
I see from other postings that this isn't too uncommon, but didn't see any fix.
Thanks

Can you determine if it is just one of the hubs? Resetting the PRAM probably didn't have anything to do with this problem but the SMC controls the power, try this reset:
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.

Intel iMac randomly relaunching Finder. RAM problem?

Several months ago I bought a new 3.06 GHz Intel iMac with 2GB of RAM. I also bought CS4 so I maxed out my RAM at 4GB with a 2x2GB RAM kit from Other World Computing.
I've noticed in the lately that everything will suddenly hang, the Dock won't appear when I cursor to the bottom, and then my desktop pic will change. I have my prefs set to choose a random one each day but this isn't happening at the right time, it's random. Not only that but if I open Dashboard after that it has to reload all of my widgets again. Plus any docked Finder or app windows pop back out to the desktop. It's like the Finder is being relaunched or something.
I'm wondering if this could be an issue with bad RAM or not having enough. With email, browser, FTP, time logger, and a few smaller apps going I can never really have more than a couple of the CS4 apps open without things getting sluggish. I try to avoid having more than 2 open at any one time. I've even dropped Photoshop's RAM usage settings from 70% to 60% to see if it makes any difference.
The problem is still happening and it seems to be happening more frequently. Things just relaunched and I went into Mail to minimize an email window. As soon as I clicked the yellow button things hanged again but not in the same way. No windows would minimize, the Dock wouldn't appear and I couldn't switch Spaces. When I went to restart, as soon as my cursor rolled over the Dock item in the Apple menu it stalled there for a short time before I was able to go down to restart. Then the restart sequence stalled and I had to force a shut down.
This is really frustrating as I was expecting a great new machine and software to replace my aging PowerMac G4 and older apps. Is there a way to test for bad RAM or does this sound like a known issue with CS4 or iMacs in general? I don't have the original 2x1GB RAM sticks any more, I sold them after installing my new RAM.
Any help would be greatly appreciated.

I've been trying a few things here and there when I've had time, giving time in between to see if the problem reoccurs. So far I've done the following:
1. Repaired Permissions. No effect.
2. Used Onyx to clean the System, User and Font cache options listed by default. It also told me that S.M.A.R.T., startup volume, Permissions and Prefs are all ok. No effect.
3. I removed the RAM, inspected the boards and the slots. Can't see any sort of damage to either. I replaced the boards but swapped slots. Both boards are firmly seated. Also no effect.
I'm going to try running 1 board at a time, swapping slots if the problem continues. If it does I'll try creating a 2nd admin account and go from there.
I've also noticed at times when the hang happens it seems to be when I click on an item in my Dock (usually a folder of items). There have also been times that after it happens I'll switch to another space and the windows for different apps will have disappeared. The apps are still open but if I try choosing the missing window under View or Window they still won't appear. Same goes with trying to use Show All under the Finder menu.

Intel iMac wireless issues

I've had a 20" Intel iMac for over a year now and have never had very good success maintaining a connection to my network wirelessly. I have tried everything, but nothing fixes it permanently. It would just drop the network sporadically, especially if it hadn't been accessed in a day.
My DHCP is set up to lease IP's forever so that's not the problem.
I also have an Intel MacBook that I bought last summer. I've never had problems staying connected to the network with that (though it takes 30-40 seconds to reconnect from hibernation).
The odd thing is that even when the iMac was connected to the network the MacBook could never see it. Couldn't share itunes, couldn't connect to the shared drive, etc. It was almost as though the iMac was invisible to the network. Trust me, I've got no firewall, everything that can be shared is shared, it's as open as it can get (behind my secured router of course). Nothing.
Now, I've added an Apple TV to the mix. I had no problems getting it onto the network and the first time it found iTunes on the iMac and connected, synched, etc. I could stream video from it. All was good. For 1 day.
Then, day 2, nothing, can't find the iMac at all. Just says to make sure iTunes is open. It is, doesn't show the Apple TV in the devices either. I tried switching channels on the router, moving the apple tv around, stopping and restarting everything. Nothing. Wouldn't find it.
I finally got so frustrated (I had gotten the box out to send the apple tv back) that I grabbed a long network cable, plugged it into my router and ran it out the room, down the hall and plugged it into the iMac and disabled the airport card.
I brought up Safari, no problem. Tried iTunes and voila, there was the apple tv. Turned on the apple tv and bingo, there's my library.
I even went to my MacBook and there's the iMac on the network. Brought up iTunes and there's the shared library.
So, suffice it to say, there is a serious problem (and I've seen this posted over and over again) with the Airport cards in combination with the new Intel iMacs that does not seem to impact the Macbooks for some reason, at least not mine.
I guess I will leave it plugged into ethernet and try to hide the cable under the trim or something. I'm frustrated by this whole experience but I'm glad I found a way to get apple tv working.
Both my iMac and Macbook have all the latest software updates.

I've had a 20" Intel iMac for over a year now and have never had very good success maintaining a connection to my network wirelessly. I have tried everything, but nothing fixes it permanently. It would just drop the network sporadically, especially if it hadn't been accessed in a day.
My DHCP is set up to lease IP's forever so that's not the problem.
I also have an Intel MacBook that I bought last summer. I've never had problems staying connected to the network with that (though it takes 30-40 seconds to reconnect from hibernation).
The odd thing is that even when the iMac was connected to the network the MacBook could never see it. Couldn't share itunes, couldn't connect to the shared drive, etc. It was almost as though the iMac was invisible to the network. Trust me, I've got no firewall, everything that can be shared is shared, it's as open as it can get (behind my secured router of course). Nothing.
Now, I've added an Apple TV to the mix. I had no problems getting it onto the network and the first time it found iTunes on the iMac and connected, synched, etc. I could stream video from it. All was good. For 1 day.
Then, day 2, nothing, can't find the iMac at all. Just says to make sure iTunes is open. It is, doesn't show the Apple TV in the devices either. I tried switching channels on the router, moving the apple tv around, stopping and restarting everything. Nothing. Wouldn't find it.
I finally got so frustrated (I had gotten the box out to send the apple tv back) that I grabbed a long network cable, plugged it into my router and ran it out the room, down the hall and plugged it into the iMac and disabled the airport card.
I brought up Safari, no problem. Tried iTunes and voila, there was the apple tv. Turned on the apple tv and bingo, there's my library.
I even went to my MacBook and there's the iMac on the network. Brought up iTunes and there's the shared library.
So, suffice it to say, there is a serious problem (and I've seen this posted over and over again) with the Airport cards in combination with the new Intel iMacs that does not seem to impact the Macbooks for some reason, at least not mine.
I guess I will leave it plugged into ethernet and try to hide the cable under the trim or something. I'm frustrated by this whole experience but I'm glad I found a way to get apple tv working.
Both my iMac and Macbook have all the latest software updates.

Intel iMac 20' users - any problems with noise on your firewire interfaces?

Someone please tell me that they have a quiet intel iMac 20'/Firewire interface set up, I'm having problems with a lot of digital noise from my Saffire LE & badly am hoping it's 'fixable' or just a faulty unit but more so, praying it's not noise from the iMacs Power supply that will interfere with any firewire interface I get???
I've read many posts about G5's suffering from noisy psu's which was one factor in my choosing an intel iMac & I chose the Saffire on it's great reviews for sound quality, there's no way I can work with the noise I'm getting & I'm pretty much panicking that if it IS the iMac & firewire thats the problem I'll be screwed as i only have 6 pin firewire as a useable option (really don't want to use usb2)
Incidentally, the 'budget' set up I had previously (PC & soundblaster audigy) didnt suffer from any noise like this (at least not that was even audible with the mixer levels at conversational level!) which i guess rules out any blame of this on 'mains hum/interference'?
The noise is there with the saffire's monitor output knob at any setting & with no inputs connected, it;s even worse if i power the saffire with it's external psu instead of off buss power. I'm not using a firewire hub & I've tried switching firewire leads & removing the firewire hard drive i have in the other port in case this was affecting it.
Would really appreciate hearing from anyone with similar troubles or even better anyone thats NOT having this problem with a 20' intel iMac & firewire interface so at least i know there's light (& quiet!) at the end of the tunnel
Adam
Intel iMac 20' Mac OS X (10.4.7)

funnily enough I'm going the other way, I have a rack of external modules/>sampler/fx etc & a crate of looms I've just unplugged as they've not been >turned on in so long!!!
I hear you there!
The noise is there without any inputs at all to the interface, its defiantely >digital though, its like a toned version of the sound of an old telephone >modem.
What I mean, is try disconnecting everything, drives and all. You might even disconnect the interface and crank up the iMacs volume to see if it is there. If it is, you can try the UPS and see if that takes care of it. Then add them in one at a time. All it takes is one cheap power brick in the mix to cause all kinds of trouble (if your using powered monitors, that brick too). Noisy components can actually send noise back into the source power.
I know it can be really frustrating, especially if you have noise coming from more that one source. The key is to strip everything until it is quiet and then add them back in to see where the worst is. Then come up with a plan to try to get rid of the noise.

Intel iMac freezes, reboots and other issues

Intel iMac 17" 1.83 Ghz model (Had for a while now)
1 GB of 667 MHz DDR2 SDRAM installed (Mac detects this fine)
Mac OS X 10.4.8
Beginning yesterday, the Mac froze when shutting World of Warcraft (which had been installed and working for at least two months). Computer completely hung. Restarted machine.
A few minutes later, the machine just switched itself off (or appeared to) - screen goes black. I held in power button for five seconds until I heard a click in the machine. This has happened repeatedly.
One time, the machine froze and the monitor refreshed at a visible rate (I could see the scan line) - each time the screen got darker.
Often, it will turn on, but the OS won't load unless I hold Alt down, or if I use OptionAlt+PR.
Ran disk utility from the install disk, only minor issues, all fixed. The problem of turning off still occurred.
Nothing in the kernel panic log. Diagnostics in System Profiler is saying it passes on the power on self test.
The confusing thing is, that after last night, I pulled the plug out, went to bed, praying to the computer fairy to fix it. This morning, it ran fine continuously for about 8 hours, running WoW, IRC app, iTunes etc. all fine.
Could it be a power supply issue? Is the thing overheating (the Mac is up to date with EFI Firmware update and SFC Firmware update).
I'm utterly stumped as to what's causing it. I don't want to send the thing off as then I'm without a computer.
Any ideas or advice?

Has it done it since?

My Intel Imac isn't turning on

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