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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Oct 3, 2010
Just as the title says I have a Macbook 2,1 (2.16 c2d) and after booting into osx the display shuts off. I can use the notebook as a desktop with an external monitor. Any ideas as to how i can fix this?
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Feb 8, 2012
My wife's macbook monitor is destroyed due to happy 2 year old. It won't be worthwhile to replace the monitor and it is not fixable without some expensive work being done on it, therefore I would like to use our TV as an external monitor and retire the macbook to being a mediia computer. I have connected it to the TV, and I see an empty desktop, as far as I can determine it looks like it is treating the TV as a secondary display - that the desktop is extended onto - so I cannot actually interact with the normal desktop. When I try to run things using keyboard shortcuts I hear some sounds of things starting, but I don't see anything on the TV. So what I need to do is to have some way to tell it to treat the secondary display as the primary display.
Info:
iPhone 3G, Windows XP
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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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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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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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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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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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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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Jun 29, 2010
I tried to install a larger hard drive in my mac mini pps version. Everything seems to be alright but after a few miniutes the computer gets hot on right side and then it shuts off .I have shut it down and wait untill I hear from you
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Apr 18, 2007
I have a G4 Power Mac. It's the "digital audio" model that has been upgraded with a 1.2Ghz G4 processor. It works well except for one thing. It shuts down randomly and suddenly. Then after 5 or 10 minutes it turns itself back on, reboots and runs fine. (It is set to re-boot after a power failure.)I suspect what is happing is the power supply is turnning itself off due to some kind of a thermal, self protection switch. The fan seems to work but the PS gets warm.What's the cure? Replace the power supply? If so where to get a new(er) one?
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Jul 21, 2007
I hadn't been using sleep mode on my iMac G5 for a while (but it always worked previously to me setting it to "never"), and now yesterday when I turned the sleep mode back on, it has decided it wants to shut down instead of sleep. But it's not a nice shutdown...it just powers itself off, as if it was unplugged. It always boots back up with no problems.
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Oct 31, 2007
My new Alu iMac just randomly shuts off. It's happened like 5 times (once while I was typing a paper). I have updated to 10.5, and it has happened twice since the install.
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Nov 26, 2007
My Mac has been shutting off by itself with no warning. Sometimes it takes me 5-6 times to get it up and running.
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May 24, 2009
i have a powermac g4 that is running fine, but when i click on the apple sign and tell it to go to sleep. It goes into sleep mode and then after that shuts down. Is this normal, I think it might be a setting a have to change but I am unsure because this is my first mac.
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Mar 19, 2010
This started about 2 days ago, there was no apparent signs of such a thing going to happen.
My MacBook suddenly shuts down in the middle of my work. Shut down as in a sudden shut down, as if the battery was removed. There is no shutdown process, the whole screen just goes black. I've realized that this happens more recently when watching youtube videos, playing flash games etc.
Example : Computer dies in 10 minutes when watching videos/playing games. Computer dies in a few hours or NEVER when just typing, surfing.
It doesn't seem to be a battery problem. I've removed the battery and had my Macbook run on the Charger before, and it still died on me...
Battery Information:
Battery Installed:Yes
First low level warning:No
Full Charge Capacity (mAh):4390
Remaining Capacity (mAh):2128
Amperage (mA):-1720
Voltage (mV):11081
Cycle Count:495
Mac OSX 10.4.11
1.83 GHz Intel Core 2 Duo
1.25GB 667 MHz DDR2 SDRAM
I run bootcamp, same problem on my other operating system
Hardware Overview:
Model Name:MacBook
Model Identifier:MacBook2,1
Processor Name:Intel Core 2 Duo
Processor Speed:1.83 GHz
Number Of Processors:1
Total Number Of Cores:2
L2 Cache (per processor):2 MB
Memory:1.25 GB
Bus Speed:667 MHz
Boot ROM Version:MB21.00A5.B07
SMC Version:1.13f3
Serial Number:4H7110U8WGK
Sudden Motion Sensor:
State:Enabled
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Apr 17, 2010
I have a power pc and recently installed some new RAM. All worked fine for a few weeks then the computer randomly shut down. I would turn it back on and it would chime but shut down again before it was finished booting. Thinking this was the new RAM I took it out and rebooted. All was fine. To cut a long story short, I now get this problem with any configuration of old RAM and/or new RAM and to allow the computer to boot successfully I have to at least take out a RAM card and then put it back where it came from...
It seems though the new RAM did trigger something but this now happens no matter what RAM is in there. Also, taking RAM out seems to reset something that makes it start up OK. Any ideas what could could causing this..?
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Jul 9, 2010
I recently updated to snow and since then have had problems turning off mac. I've reset pram, tried unplugging externals, tried logging out, then shutting down, but every time I hit apple-shutdown it goes black, and reboots. I can put it the screen to sleep with hot corners, but never turns off unless I manually hold down power.
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Oct 9, 2008
After my upgrade to OS X 10.5.5 I have the problem that my CPU only uses 20-30% but still gets very hot, and finally my computer shuts down. I have iStats Pro that also shows that both of my fans is working and going crazy spinning up to 6000 rpm just because the CPU is 75� C.
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Feb 12, 2012
I have an old iMac G3 (400mhz slot loading) that I got second hand for free. When I first got it, it seemed to work perfectly in every way, but the hard disk wasn't very big so I tried to install a new (larger) one. Everything seemed to go fine, but after the upgrade, the computer would only stay powered on for about 10 minutes before shutting itself off. I assumed that it was a problem with the hard disk, so I put the old one back, but the problem persisted. It will only stay powered on for a maximum of about 20 minutes before blinking off and then it has to sit for a while before I can get another 20 miutes out of it
Info:iMac, Mac OS X (10.1.x)
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Mar 12, 2012
how to fix safari, it shuts down with no explanation when i try to print
Info:
Windows XP
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Mar 15, 2012
my macbook shuts off after initial start up
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Apr 3, 2012
My 13" Macbook Pro is forcing me to shutdown and restart my computer at random times. So far I've only noticed this when I'm on Safari.
Info:MacBookPro, Mac OS X (10.5.8)
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Apr 4, 2012
Three times today, my iMac has shut down while working. This has never happened before. Could it be related to the external backup drive, a G Drive Mini, pulling too much power?
Info:
iMac, Mac OS X (10.7.3)
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Apr 11, 2012
when I am connected to MSN or watching a movie on internet my airport just stops and will not turn on unless I restart computer.
Info:
MacBook Pro, Mac OS X (10.6.6)
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May 23, 2012
If my macbook air gets extremely hot and shuts down means that i need to take it back to the apple store?
Info:
MacBook Air, Mac OS X (10.7.4)
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Jun 26, 2012
Safari randomly shuts down while in the middle of browsing. The rainbow loading icon will appear and then all windows and tabs will close. Then it gives me the option to report or ignore the problem. This happens at least once every day. Also, Software Update does not load. It just says "The Software Update Server (appleupdate.iu.edu) is not responding."
Info:
MacBookPro
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Jul 5, 2012
I have a late 2010 MacBook Air.Unfortunately, I'm in a country without an Apple store or any kind of official Apple support (no phone number to call).
2 days ago, I plugged in a little USB modem device (wireless is rare here) and my laptop shut down suddenly. It refused to restart at all until I did an SMC reset and then it was working fine (including with the USB modem plugged in).
However, the next day, the same shut-down occurred (when I plugged in the modem again) and now SMC reset is not doing anything. I've held down the start button for a very long time and there aren't any signs of life. The light on the charger shows that it is charging when I plug it in.
Info:MacBook Air (13-inch Late 2010)
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Jun 4, 2014
As of a few days ago my MacBook Pro has been acting oddly. When I shut the clamshell and reopen it again a few minutes (or hours) later it's hot and makes sounds as if it is working hard at something but the display will not turn on. I usually end up turning it off anf then on again via the power button. I have a wireless keyboard attached due to damage to the laptop's own keyboard, but use the laptop's power button (which still functions). I've reattached, and reset, the keyboard a few times in case that was the problem but had no luck. It doesn't hinder my usage of the computer once it's on again but it is strange.
Info:
MacBook Pro
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Jun 19, 2014
I have a Macbook pro (OS 10.8.6), when I put it to sleep by closing the lid or explicitly choosing sleep option,it goes to sleep, but when I open the lid, the machine shutsdown. I have to press the power button for around 30 seconds to start the machine. In the logs I could find--Shutdown due to error code --79 and sleep failure shutdown.
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