Hardware :: Screen Fuzzes Out And G5 Shuts Down

Jan 23, 2008

I have a dual 2 gig G5. I can run it for about 20 minutes, then it's starts to smell like something is burning. The screen fuzzes out and it shuts down. Power supply maybe? It runs fine up until the point where this burn and fuzz kicks in.

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PowerPC :: IBook Screen Backlights Shuts Off / When Screen Is Tilted Back Farther Than 45 Degrees

Sep 23, 2006

Ever since I sold it here on MR and got it back, there has been a problem with my 12" Dual USB iBook G3 500MHz's screen (lord, that's a long name). Whenever the screen is tilted back farther than 45 degrees or so, the backlight shuts off. I can open the casing and fix it if it's possible. Does anyone know what the problem with it is? I'm trying to get it fixed up and ready to sell back to my friend as his first Mac, and I'm trying to get every problem resolved

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OS X V10.7 Lion :: 27 Inch IMac Screen Shuts Off During Screen Saver

Apr 26, 2012

My 27inch iMac screen shuts off during screen saver and does not come back on unless restart machine?

Info:iMac, Mac OS X (10.7.3)

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MacBook Pro Screen Randomly Shuts Off

Jun 18, 2012

My MacBook Pro screen randomly goes black, yet the laptop still has power. I usually have to reboot in order to get back into the computer.. as moving the track pad doesn't bring the screen up.

Info:
MacBook Pro, iOS 5.1.1

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PowerPC :: IBook G4 Screen Goes Black - Shuts Down

Nov 27, 2006

My wife has a three-year old iBook G4 and yesterday while she was doing some work, the screen just went black. By the time she brought it to me the machine was shut down. I hit the power button and it started to boot up, but about five seconds later it shut itself down again.

I kept playing with it and I was able to get back in to OS X and I played with it for a few minutes and all seemed fine. I then shut the screen and put it to sleep, then when I tried to wake it back up it shut itself down once again.

After a few more tries of getting it back in to the OS I was able to get all her files off the hard drive, but the problem is still there.

My guess is that it's the logic board, but that's just a guess.

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MacBook :: No Bootup - Shuts Down Itself After Logo Screen

Feb 24, 2009

So my computer froze while I was waking it up from it's nap, so I restarted it by holding down the power button. It now shows me the gray screen, apple sign and spinning circle for about a minute before it's decided it's done and would like to turn itself off. I have tried resetting the PRAM and the SMC. I have tried restarting in safe mode. I tried to restart it off the AC adapter without the battery. I hear the chime, I see the apple, and the status circle, and then nothing!

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OS X :: MB Stutters Blue Screen When Turned On And Shuts Down

Mar 4, 2009

I'm desperately trying to get my 3 year old macbook to cooperate - it operates fine although it has been very slow lately but occasionally it will freeze and flash a blue screen, then either just remain frozen or shut down. When I try to turn it back on, it responds as normal, but as the desktop, wireless bars, etc start to load, the pinwheel comes up and then the screen flashes blue, and the whole process of loading the desktop starts over. This repeats endlessly until after turning on and off a few times and waiting about ten minutes it will finally turn back on- something is clearly up and I'm afraid I am going to lose data.

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IMac :: Suddenly Shuts Down - Screen Warm

May 25, 2009

I received my new iMac on May 20. It is a 3.06 with an ATI card. I have not had much time to use it until this evening. I had been been setting up some bookmarks in Safari and then was working on a spreadsheet for about an hour when it suddenly shut down. The power strip in which it was plugged in still had it's light on. The iMac is the only item plugged into the strip. I then felt around the screen, the bottom section was cool but the top was rather warm.

The temperature in the air conditioned house is 71�F. Programs open at the time were Safari - which was on an idle screen as I had logged out of a site. Two sessions of Finder Entourage Excel - which I was actively using. Is this an over temp shutdown? I recall some people posting the temperature of their Macs. Are there any monitors on the iMac to see how hot it is running? There were no warnings that it was going to shut down.

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IMac :: Shuts Off In Middle Of Loading Screen

Jul 7, 2009

I have a mac mini intel and I was in the middle of working with my blogs, then there was an annoying spinning wheel of death, so normally, I would hold the power button for few button to restart and I did. then when the desktop was loading, everything was back to the "new" desktop with alot of stuffs missing, so I restarted it again using the apple menu, then the startup screen took so long and out of nowhere, it shutted down by itself. I tried to power it on again and again, unplugged the cords, still didn't work.

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IMac :: 20'' Screen Shuts Off When Playing Warcraft?

Jul 20, 2010

when ever i log into world of warcraft. and start playing after five minutes my screen will just shut off but the computer will still be running. maybe the video card ?

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MacBook Pro :: Backlight Shuts Off At Login Screen

Feb 19, 2012

I have just replaced the display panel in my MacBook Pro (A1260) and now it is behaving oddly at startup. The backlight lights up normally until the boot process gets to the Login screen, at that point the LEDs shut off. I can see the images on the display, (the LCD seems OK,) the only issue is that the LEDs are turning off.

Here's what I've tried:
1) If I boot in Target mode, the screen stays lit. (As expected.)
2) If I reset PRAM, the lamp behaves normally, staying on through that session. If I restart, the lamp-off- condition returns.
3) I have reset the SMC per instructions here, [URL]. No change, LEDs shut off.

Info:
MacBook Pro (15-inch 2.4/2.2 GHz), Mac OS X (10.6.8)

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Macbook Pro Shuts Off After Few Seconds Of Gray Screen

May 15, 2012

I came home to discover my power cord had died and my laptop turned off due to no power. I used a friend's power cord to turn it on later that night and send some emails. I bought a new power cord the next day, plugged in, and turned the laptop on. It stayed on the gray screen with a spinning wheel beneath the apple logo for a while. I restarted it and it turned off after a few seconds of the gray screen. An empty bar flashes twice horizontally at the bottom before the spinning bar begins.I tried booting in safe mode, but it would just stay on the gray screen. I tried doing shift+command+v and received a message about keys out of order and disk error full, can't repair. I was able to boot from the install disc, and when I click "Repair Disc" I get the same erros. Not sure what to do now?

Info:
MacBookPro, Mac OS X (10.6.4)

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IMac (Intel) :: Shuts Down During Load Up Screen

Aug 24, 2014

I just got home and I realized the power was out. I bought this iMac literally like two months ago (I actually bought one two months ago but it wouldn't even turn on so they gave me a new one) It was working perfectly fine, and I was writing a report. I left the computer on and left the house only to return hours later with the power out, and when I turn it on it shows the start up screen with the Apple Logo, the little progress circle, and a progress bar that fills up to the end everytime but once it fills up to the end it stays there for a few minutes then the computer shuts off. 

info:
iMac

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OS X V10.7 Lion :: Monitor Shuts Down Doesn't Use Screen Server

Jan 31, 2012

i am using my monitor from old Leopard computer. It works fine on the Mac mini running Lion. When not in use, instead of using the screen settings it shuts down. I have to click the mouse and sign in.

Info:
AppleTV 2, Mac OS X (10.7.2), Mac mini 2011 iPad 2 iPhone 3Gs

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MacBook Pro :: 2010 / 15 Inch - Screen Shuts Off Randomly

Jun 24, 2014

My MacBook Pro 2010 15 inch screen shuts off randomly. The whole laptop doesn't shut off just the screen. It calls it a panic but I have to hold down the power button to shut it off when this happens or it will stay on the black screen.

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Intel Mac :: Grey Shading Appears On The Screen, Freezes Then Shuts Down?

Jun 15, 2012

iMac grey shading appears on the screen, freezes then shuts down

Info:
iMac, Mac OS X (10.7.4)

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MacBook Pro :: Grey Screen With Apple And Spinning Progress Then Shuts Off

Aug 27, 2014

Grey screen with apple and spinning progress then shuts off

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MacBook Pro :: WILL NOT START. Powers On, Grey Apple Screen Loads Then Shuts Off?

Mar 10, 2012

Fairly new MacBook Pro with OXLion. When I try to turn on the computer, the startup noise and screen appear (grey loading screenwith apple icon). A loading bar at the bottom of the screen fills about a third up, then the computer shuts down again.

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Power Mac :: G5 1.8ghz Duel Shuts Down At Grey Apple Logo Screen

Mar 23, 2012

My power mac g5 has suddenly started to shut itself down in the early stages of boot up. The apple logo appears and the spinning timer logo spins befor a complete shut down. 

I have used my o/s disc to access the disk utility. Repair disc is not an option. Verify disc is an option but this process fails due to " invalid nodes"  

Info:
iPad 2, Mac OS X (10.5.8), G5 PPC 1.8ghz, iPhone4

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MacBook :: Won't Boot Past Gray Screen With Apple Logo And Then Shuts Off

May 29, 2012

This morning, I would turn it on and it'd go to the grey screen with the Apple logo for a few seconds and then go to the icon that is a circle with a line through it. After reading online, I was able to boot it up in Safe Mode. I went to Startup Disk in Preferences. I chose the MAC OS X, xxxx and then clicked the lock to prevent further changes and then clicked restart. Now when I turn on the macbook, it goes to the grey screen with the Apple logo for at least two-three minutes and then just shuts off. Won't boot into Safe Mode now. I already tried the Command-Option-P-R keys trick like five times.

Info:
MacBook Pro

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IMac (Intel) :: Desktop Fan Comes On And Then Screen Goes Black Shuts Computer Down Every 5 Seconds

Jun 4, 2014

I have a 27 inch desktop. Upon turning the computer on within seconds the fan comes on. Then it goes to a high fan. Then it goes to a black screen. Then it shuts off. Then if you click the mouse it will come back on. This cycle repeats itself every 5 seconds. Only one time in the past month did it turn on normally and run for me.

Info:
iMac

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MacBook Pro :: Startup Screen With Apple Logo And Grey Loading Bar Then Unexpectedly Shuts Down

Jun 26, 2014

I have a MacBook Pro from 2010 I believe with iOS Maverick installed. (MacKeeper is also on there, which I just found out is apparently malware) 

So three days ago I was watching Netflix, the image froze, but the audio kept going. Figured my internet was slow, so I waited a little, nothing happened. pressed escape to leave the full screen mode, but nothing happened. None of the keys would do anything, not even the sound or brightness keys. So I did a force shut down by holding down the power button. 

I waited a little, then decided to turn it back on. Start up sound played, white screen with grey apple logo and loading gear appeared together with a grey loading bar. I figured that this meant it had to repair something. But after about a minute or two it just went to a black screen/ shut down. I left it off for a day, tried it again, same thing. Next day I tried booting it up while holding the shift key to do the safe boot (I knew it wouldn't work since I already had the grey loading bar anyways), same thing happened. 

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MacBook :: Shuts Down Unexpectedly - Screen "fizzling" When Using Thumb Drive

Feb 17, 2009

Well just recently my MacBook (bought 2/17/2007) started shutting down by itself. Seems to happen after long use (3hrs) and when it starts to get hot. Also noticed screen doin a "fizzle" when using a thumb drive. Anyway went to Apple and dropped it off. They said they will run some stress tests on it and get back to me. I know there are a few things out there about this but wondering if any of you have experienced this recently or at all?

No warranty either. So if it is a logic board issue not sure... or if its a heat sink issue? Not sure what that entails to get it repaired. I was not expecting them to take the MacBook right then and there so i was sorta concerned as it has everything but... want to get it figured out.

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MacBook :: Pro Shuts Down On Its Own / Why Is This?

Dec 9, 2009

I'm considering buying a used MacBook Pro (early 2008) from a seller on eBay. The seller disclosed "Sometimes the machine shuts down after startup" but adds that he does not know why.

Does this sound like something anyone has encountered and if so, was it serious?

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Mac Pro :: 3.1 Display Shuts Down?

Feb 5, 2010

My Mac Pro display shuts down on me and goes into a kind of sleep mode but will not wake up, the monitor says there is no connection. This happens during playing video games or browsing the internet on both the mac and pc side. I thought it was the video card (gt 8800) so I bought a new card through apple (ati 4870), after installing the new card yesterday the problem came up again.

Model Name: Mac Pro
Model Identifier: MacPro3,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.8 GHz
Number Of Processors: 1
Total Number Of Cores: 4
L2 Cache: 12 MB
Memory: 8 GB
Bus Speed: 1.6 GHz

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IMac :: Shuts Down By Itself?

Apr 10, 2010

My iMac (21.5") turn off by itself and it doesn't turn on until I unplug the AC from the back and let it rest for at least half hour!!! If I try to turn it on I only get fan and drive noise but no screen at all... The longest time I let it rest, the more time that I can use it. I already reset PRAM. I'm runing 10.6.3 and the biggest software I use is ArchiCAD 13...

Does anybody have a similar issue with his/her iMac?

PS. Sorry, I don't speak/write good English but I did my best...

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Software :: Dvd Shuts Down The Mac

Jun 20, 2009

whenever i use my dvd the i mac shuts down, like i pulled the plug. No report, no evidence of somthing crashing. Either burning a DVD or copying the files to the desktop causes the same problem. I just re istalled mac osx the problem insists.

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MacBook Pro :: It Shuts Down At 10%

Apr 10, 2012

My computer started to shut itself down without warning at around 10% battery power when my battery was bad. I bought a new battery, which works fine, but the problem persists. The computer does never tell me that battery is low or anything; it simply shuts down at 10% without warning and I can't seem to be able to do anything about it.

Info:Mac Pro

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Mac Pro :: It Shuts Down On Startup

Jun 18, 2012

First, my MacPro did not accept my password. Earlier, our building had three power drops in a row, seconds apart. I don't know if this affected my computer accepting my password.Since then, my computer starts to boot up then suddenly shuts down. Is there some way I can boot up and get to admin controls?

Info:Mac Pro, Mac OS X (10.7.3)

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Power Mac G5 :: Shuts Off On Its Own Every Few Minutes?

Oct 5, 2007

Starting today my Powermac has shut off suddenly a few times in ~15-20 minute intervals. When I have many applications open simultaneously the computer is especially prone to this.

I have never had this happen before in the 3+ years of using this Powermac, and the only differences I can see are that I've switched to a different ISP (I switched from earthlink DSL to Comcast cable), and I now have 4 computers wired in to my 4 port switch router. After turning on my computer I also noticed that my router requires a reset and the internet doesn't work until I do that.

Information:
Powermac G5 2.5 Ghz Dual Proc.
Mac OS X (10.4.10)
1 GB RAM

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