IMac (Intel) :: When Powered On LED Diagnosis Lights Are All Lit Green / But All Have Is A White Screen
Jun 27, 2014
On my mid 2007 Aluminum 24" Intel Imac shows nothing but a white screen when powered on even though according to the diagnostic LED lights which are all powered on and green the logic board, video card, and everything else are speaking back and forth to each other perfectly fine. Does this mean the LED screen is bad or (from what I've read) is it a possibility the hard drive is bad? I know the optical drive is bad and will not spit out any discs. The #1 reinstallation disc for the OS is stuck inside right now. Before I order a new screen, inverter, and optical drive I figured I should ask in here to see if it is just bad hard drive or something else. Wouldn't the LED diagnostic lights tell me if the hard drive was bad?
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Mar 15, 2010
I own a 17" g5 imac and today I was just browsing on Firefox and all of a sudden the screen became checkered with thin pink and white lines. It is most noticeable on the menu bar and anything that is grey or white in color. It is not checkered on the blue background behind my desktop photo. I have an external monitor plugged in as well and the same thing is happening to that monitor.
I have a powerPC imac G5
OSX 10.5.8
1.5GB DDR RAM
ATI Radeon 9600
Here is a screen shot:
Haven't reformatted it yet. Hope there is a better solution. Purchased it used about a year ago. No warranty.
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Apr 1, 2009
I have an IMac and first the screen went green not long after I got the power supply changed and now lines are appearing
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Jun 24, 2014
Suddenly yesterday when I powered mi iMac I had some horizontal green bars on the startup screen then it powered normally. But it happened two times, now every time I power on my iMac the screen stay black, and i can use my computer, everything else is working normally (i still can use Alfred to turn off my computer).
I already tried resetting the Command+Option+P+R, it didn't work. Also the Safe mode.
I have a mid-2011 27' iMac. EMC 2429.
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Sep 5, 2014
When I turn my macbook pro on I get a green and white lined apple then just a white screen?
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Jun 20, 2014
New iMac at first of year has always locked up with green squares (1/4") randomly on the open window. I have to do a hard boot to unlock the screen. This may happen 5 or 6 times a day but I'm finding no pattern. It happens in any software, mail, internet browser, extra programs and only using what I need at the moment, including mail and internet, hasn't worked. I've run disk utility - repair disk and repair permissions multiple times to no avail. I've reinstalled the OS Mavericks and Adobe Creative Suite programs (Photoshop & Premiere Pro), no improvement.
I purchased a high-end iMac specifically to handle high-demand video editing needs. But this happens when checking email or browsing the internet too. Here's a listing of the system from a "Panic (system crashes) log" from the "Activity Report."
System Profile:
Model: iMac14,2, BootROM IM142.0118.B00, 4 processors, Intel Core i7, 3.5 GHz, 32 GB, SMC 2.15f2
Graphics: NVIDIA GeForce GTX 780M, NVIDIA GeForce GTX 780M, PCIe, 4096 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz,
[Code] .....
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Dec 3, 2014
How do i get out of the white screen after signing on to my computer.
Info:
iMac (24-inch Early 2009)
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Jun 2, 2014
after 15 minutes, mac goes to sleep. when I go back to it I have white screen and have to manually reboot.
Info:
iMac, OS X Mavericks (10.9.3)
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Jun 2, 2014
I was off of my iMac for an hour or two so my screen saver when on. I went to wake the computer and it was frozen. I tried using the keyboard and mouse to wake up the computer from the screen saver, but it would not work, so I powered the iMac down manually from the button on the back. I let it sit for 15 minutes, then I tried to start the computer up again. Now at start up, I get to a blank white screen with the spinning moving pin wheel, and that is it.
Info:
IMac 2Ghz Intel Core Duo, Mac OS X (10.5.7)
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Sep 7, 2014
I have a new MBP. I was trying to transfer stuff from my iMac to the new MBP using a thunderbolt cable and pressing down the 'T' key while restarting my iMac.
Long story short, there was not enough room on my MBP so I just continued on without transferring anything. Disconnected the thunderbolt and my iMac is still on a white screen with a floating thunderbolt. How do I proceed?
Info:
iMac, OS X Mavericks (10.9.4)
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Jun 1, 2009
So my 20" 2.4 Imac crashed on me twice tonight. A box popped up telling me to hold down the restart button for several seconds to restat. The second time I did this it just sits with a white screen and give three loud beeps over and over. Is there a fix for this? Is it my ram? I'm at a loss.
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Feb 15, 2010
My step mom has an iMac. The first gen intel one and the other day out of nowhere there was a white screen with a folder on it and now when you go to start up the iMac the screen just stays white.. What would be the cause of this and what should I do to fix it .. thank you
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Aug 20, 2014
Why won't my computer go past the white loading screen and how can I fix it?
Info:
iMac
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Jun 21, 2014
I get is white screen with flashing question mark. I've inserted OS disc but it won't run.
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Jun 5, 2012
My macbook pro 13" Mid 2010 model will simply not turn on! I tried does SMC and PRAM but still no results. The Macbook gives me 3 green blinking lights on the battery indicator and nothing else. I already tried switching the ram for a dead or faulty ram but still nothing. Also the power adapter doesn't seem to want to work. When I plug it to the macbook, I can hear small sparks each time, looking at it, there are some black marks on both the charger and the mac. [URL]s
Info:
MacBook Pro
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Sep 10, 2014
My screen had black and white vertical lines pop up over the entire screen then went blank and now at a restart the password then loading spinning circle happens then I get a blank white screen.It's a 27 in Intel iMac that is about 2011/12 purchase
Info:
iMac (27-inch Mid 2011), OS X Mountain Lion
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Dec 27, 2007
If DVI out to external monitor works, does this mean that the GPU works? When I run the hardware test I get a Video RAM error, 2DIS/16/2, googling that is inconclusive. The LCD panel is new and verified to be functional, so that's not the problem. Could a faulty video cable or something else that is cheap to replace cause a Video RAM error? Or is it in need of a new logic board?
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Aug 22, 2014
Mac won't boot, starts with white apple screen and spinning wheel. Also has grey loading bar which disappears after loaded then stays at white apple screen.
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Dec 11, 2014
Why is my Snow Leopard OSX 10.6.8 IMac screen all white when I turn it on? There is no spiral and no Apple logo and the desktop does not appear. The screen is just white.
Prior to this, we had a wind storm in our area with some power glitches today. After one of them, the dock items disappeared and just the wallpaper was there. The colored spinner began going around when I clicked on the mouse but nothing was happening. I unplugged it to try to reset it, but now the screen comes up all white, there's no apple logo that appears at start up and that's it. Now what should I do?
Info:
iMac, Mac OS X (10.6.8)
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May 31, 2012
My iMac all of a sudden started to scroll down gray and then said I needed to restart. When I push the power button the screen lights up but the iMac just beeps. How do I start up?
Info:
iMac, Mac OS X (10.5.4)
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Jun 6, 2009
The other week I got on my iMac and saw that there were green and purple dots all over my screen.
I have no idea what they are from or how to get rid of them.
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Mar 8, 2012
I have an iMac8,1 24". While working on the iMac, the screen turned complety green. After a restart, the screen was back to normal. What could cause this? Should I be concerned?
Info:
iMac, Mac OS X (10.7.3), 24" iMac8,1
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Mar 29, 2012
I have lost the green tick that sits next to the broadbard icon on top right of the screen which tells you if you have internet access?
Info:
iMac, Mac OS X (10.7.2)
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Jun 10, 2012
How do I change the iTunes screen display from 'white on black' to 'black on white'
Info:
24" iMac
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Jun 2, 2014
I also have the same problem with the green text underline. I don't know how to get rid of it. How to get rid of the Downlite. The instructions are too complicated for me.
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Jun 4, 2014
During the boot-sequence the screen of my Imac 27" flashes green (once), then returns to normal. This does not happen when I boot my Windows (Bootcamp) partition, so I assume this is some kind of OSX driver error. This started to happen only after I installed the latest patch (10.9.3). How to get rid of it ?
Info:
iMac, OS X Mavericks (10.9.3)
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Nov 30, 2014
I shut my mac down 1 week ago. Apparently, it chose to restart. I am looking at an incomplete green status bar. I turned the computer off and back on. The status bar is stuck at 1/3. What can I do? I have no time machine backups.
Info:
iMac, iOS 8.1.1
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Nov 11, 2010
This is perplexing me: I've only had my iMac 21.5" for a week. I posted here about the white screen issue after the 1st s/w update. Now, on every restart I get the same *but only when* my USB ext HDD is plugged in; unplug it & it starts fine, plug HDD in and it mounts, checked external HDD with disk utility - AOK. Never had this problem with my old 20" iMac! It's still in DoA period so is it best to get it swapped out?
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Sep 6, 2006
I ran software update and got (iPhoto, itunes, Security patch) so I ran it and downloaded everything except the Intel Security Patch. So I restarted and decided to try again. Restart didn't work as it got stuck and I had to reach around and restart by holding down the power button. When it came back up, I got the white screen with the grey apple logo and the spinning clock like icon..... spinning and that is where I am stuck, left it off all night and tried it in the morning, same thing.
I did try:
-resetting pram (nothing happened)
-restart in safe mode, holding down shift key (nothing, stuck on screen)
I would try to start up from the OSX disk except I have a DVD in the machine. I am thinking it was that security update that didn't download fully that is doing this but how do I get the imac, "unstuck"? or how do I manually eject that DVD to put in a OSX start up disk?
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Jun 18, 2010
Three times in the last week or so my iMac's screen has just turned white (once with almost a ribbed pattern with thin grey vertical stripes evenly interspersed) and become completely unresponsive, with the only option being a hard reset. It's happened under a variety of conditions: while surfing in Safari, while working in Aperture, and once without doing anything (I was on the phone sitting by my computer). Each time I've restarted it everything seems to work fine for a couple days, but then it happens again. I've never seen anything like this and I figured after the third time it's time to ask for help. Does anyone have any ideas?
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