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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Apr 9, 2012
Last Thursday I down loaded software updates from apple and have been losing power very quickly ever since. It just seems like as soon as I remove the power cord I lose power with in three minutes.
Info:
MacBook, iOS 5.0.1, purchased feb 2009
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May 26, 2012
Only an issue in OS.X not OS.9. Pulling the power cord eliminates issue for next start but not subsequent starts. Pulling the cord isn't easy how the computer etc is set up so I'd like to rectify the issue.
Info:
Dual 1GHz PowerPC G4, Mac OS X (10.5.6), 1.5 GB SDRAM
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Nov 21, 2007
I've got a strange issue with my PowerMac dual 1.8GhZ and I can't figure out where it's coming from.Last Saturday I experienced a Kernell Panic while using Safari and the Dictionary (MacOS 10.5.1).Since then, whenever I try to start my computer, it shuts itself down while the grey screen with the Apple logo is on screen. However, this isn't always the case:I can use my computer 'normally' if I press the option key at start-up and manually choose my startup disk.
I can boot from a Panther or Tiger installation disk, but not Leopard.If I try the hardware test the computer shuts itself down in the middle of the test.TechTool works and didn't find any issues with my computer. Nor did Disk Utility.I tried to erase both my internal hard-drives and do a clean install of Tiger, but the problem is still there (I have to press option at startup).I tried to reset the PRAM and Cuda/PMA. Doesn't resolve the issue.When I tick 'Restart automatically after power failure' in Energy Saver my Mac will indeed restart, meaning it thinks there was a power failure.Any idea what it might be? And why it only happens in certain situations?Do you think it's a hardware or a software issue?
Information:
PowerMac G5 dual 1.8GhZ
Mac OS X (10.5.1)
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Jun 29, 2014
As soon as I unplug the power of my MacBook Pro, it shuts down, and all of my unsaved stuff is lost.
PS Is the battery user replaceable? I am using the Mid-2010 model.
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Jan 29, 2010
Power MAC G5.
Press power, lights up, fans BEGIN to spin then shuts down. Within 1 second.
Tried:
New RAM, new set of Processors, Video, Hard Drive.
Motherboard or Power Supply?
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Jun 14, 2012
My MacBook Pro 13" Mid-2009 has recently started to shutdown unexpectedly when it starts running on battery power, I don't know if its the battery or the motherboard (I hope it isn't).Â
I tried resetting everything, reinstalled the whole OS, repaired permissions (don't know what for), but I keep getting this. It started about a month ago when I tried to boot up from the battery as power source:
The first try went all the way through the apple showing up with the spinning symbol underneath it, then POOF. Then everytime I tried to boot up again it didn't even show the Apple logo, just 5 or 6 seconds after the chime, POOF AGAIN.
So I connected it to the power adapter and everything went OK, I started working on it, everything was fine until I disconnected it. I kept working on battery and 2 minutes later the computer died again, it sounded like when you keep pressing the power button to force-shutdown, like it's protecting itself from something and it's very frustrating not being able to use your LAPTOP as one.
Oh, one more thing, the battery icon says "Service Battery" and it shows only 1 hour of battery (on 100% charge) the 2 minutes I can work on it before it shuts down.
Info:
MacBook Pro, Mac OS X (10.7.4), Mountain Lion 10.8 DP 4
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Jun 21, 2012
We have a Intel MAC
Dual Quad 2.8 ghz
with 16 GB RAM
running OSX.6
When you push the power button it lights up for a second and immediately shuts off. I am thinking a power supply issue
Info:
Mac Pro
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Jun 25, 2014
I have a 13-inch Macbook, Late 2008 model, using iOS Mavericks. While on battery power, the laptop will randomly just turn completely off, despite still having plenty of battery power left. I know it's not a calibration issue where the battery is dead but appears to have charge left, since I'm able to turn the computer back on again and continue using it.Â
Battery info:Charge Information: Charge Remaining (mAh): 606 Fully Charged: No Charging: No Full Charge Capacity (mAh): 2609 Health Information: Cycle Count: 157 Condition: Service Battery Battery Installed: Yes Amperage (mA): -1265 Voltage (mV): 10855Â
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Aug 24, 2014
processor 2.5 ghz core i5, 4 gb 13333 mhz ddr3.
when the computer is turned off it takes a long time for the apple logo to start when i power on. version is 10.9.4
Info:
iMac, OS X Mavericks (10.9.4)
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Dec 16, 2007
I have Western Digital My Book Pro II 2TB hard drive connected through FireWire 800 or 400 cable. The problem is that it shuts itself off unexpectedly all the time. Sometimes right after I turn it on, sometimes after 30 minutes. After turning it back everything seems to be fine, no loss of data. Anyone else experienced the same problem and can suggest how to fix it?
Information:
G5
Mac OS X (10.4.10)
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Mar 2, 2008
I've had my macbook for about 15 months. i noticed a while ago it had trouble turning off completely when running only on the battery. then a few weeks ago it shut itself off and wouldn't start up again. the power cord indicator was orange, but nothing worked. ordered a new battery, that didn't help. tried a different power cord - nada. i took it in to an apple repair shop and they said something about the internal power connector (i'm not a techy) and took 2 weeks to repair. i've had it back 3 weeks now and the same thing has happened. only this time there is no indicator light on any of the power adapters. and my partially charged batteries do not work on their own either.
any ideas? i don't want to keep fixing the same thing and every few weeks it keeps breaking again. i mean, what's the point in having the computer then, right??
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Jan 11, 2010
My iBook G4 crashed on me one night, and the only way I could turn it on again was to unplug the power cord from my computer, turn it over, remove the battery, put the battery back in, plug the cord back into the computer, hold down the start button, and it would restart. Although, when it restarted, the fan would go on first, and then the computer would make the normal start sound. Some times the finder would be on the screen after I restarted it displaying a quick link icon of the hard drive. So after a few weeks, it did it again, then a few days, and then it got to the point where I had to keep my computer in the same position otherwise it might shut down.
Now, if the power cord is green everything is fine, but if I move my computer and bump the cord into the wrong place it turns from green to bright red, makes an evil buzzing sound, and in three seconds the computer shuts off and I have to restart by using the method above. If or when the power cord goes bright red I do have 3 seconds to pull out the cord before it shuts down. I then sleep the computer, put the cord back into the computer, and move the cord around until it is green again.
I took my computer to a mac genius, and when he looked at the crash report he said it was frequent, but not caused by the battery and couldn't tell me what was the exact problem. I bought a brand new power cord, but I still couldn't move the computer around to much or it would shut down.
1.) Has anyone ever heard of this happening? And if so, what causes it to be so touchy?
2.) What can I do to fix it myself?
3.) If I send it in, will they be able to fix it so that it is perfect again without having to spend more than the money assessed?
I would like to try to have it fixed. At this juncture, my only option is to send it in for $280 and hope they can fix the problem that no one seems to know what is the exact problem, or even where the problem stems from. I should add here that the battery is fully charged, and the report says it can hold about 1 hour of life, although it's more like 30 minutes, and then without warning to plug in or risk shutting down (like it used to give me) it will shut down.
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Mar 14, 2010
I got my macbook during November of 2009 but two weeks ago it started shutting down by itself once I touch the magsafe of the macbook or remove the magsafe. All it needs is a simple touch and it shuts down. When it does shut down, the light indicator doesn't come on anymore. I have to keep removing the magsafe, and plugging it back in like 20 times until it starts charging again. So now I just let it fully charge every time I use it since any sudden movement will cause it to shut down. I will be making an appointment next week at the apple store because I had no time to go these past 2 weeks. I never dropped it and take good care of it. I am just wondering what might be the cause of this? I hope they do not take weeks to fix the mac since I have a lot of homework to do
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Jun 17, 2012
My mac book pro (current gen) shuts off after closing the screen and won't start up unless I hold the power button for about 10 secs. Â
Info:
MacBook Pro, Mac OS X (10.7.4)
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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.Â
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" Â
Info:
iPad 2, Mac OS X (10.5.8), G5 PPC 1.8ghz, iPhone4
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Jul 1, 2009
my iMac won't turn on. The day before yesterday happened the same thing, but after a few tries with the power button, it eventually turned on - and all ok yesterday. Both the day before yesterday and today, the general power was turned off for some minutes, but the iMac wasn't running. So now, I've tried to reset the SMC, removing everything attached, but nothing.
At least I can clearly hear the tic tic tic button, probably of the timer, because I set up a schedule to let it turn on at a certain hour. What can I do? It's a white iMac, never had a problem.
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Mar 28, 2008
San Francisco - It may be the quickest $10,000 Charlie Miller ever earned.He took the first of three laptop computers -- and a $10,000 cash prize -- Thursday after breaking into a MacBook Air at the CanSecWest security conference's PWN 2 OWN hacking contest.Show organizers offered a Sony Vaio, Fujitsu U810, and the MacBook as prizes, saying that they could be won by anybody at the show who could find a way to hack into each of them and read the contents of a file on the system using a previously undisclosed "0day" attack.
Nobody was able to hack into the systems on the first day of the contest when contestants were only allowed to attack the computers over the network, but on Thursday, the rules were relaxed so that attackers could direct contest organizers using the computers to do things like visit Web sites or open e-mail messages.Miller, best known as one of the researchers who first hacked Apple's iPhone last year, didn't take much time. Within 2 minutes, he directed the contest's organizers to visit a Web site that contained his exploit code, which then allowed him to seize control of the computer, as about 20 onlookers cheered him on.
He was the first contestant to attempt an attack on any of the systems.Miller was quickly given a nondisclosure agreement to sign, and he's not allowed to discuss particulars of his bug until the contest's sponsor, TippingPoint, can notify the vendor.Contest rules state that Miller could only take advantage of software that was preinstalled on the Mac, so the flaw he exploited must have been accessible by, or possibly inside, Apple's Safari browser.Last year's contest winner, Dino Dai Zovi, exploited a vulnerability in QuickTime to take home the prize.Dai Zovi, who congratulated Miller after his hack, didn't participate in this year's contest, saying it was time for someone else to win.
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Nov 22, 2010
if its turned on is it going to slow down the computer and ask for passwords every 10 minutes?
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May 12, 2010
My mac keeps freezing for several minutes at a time and I've even had to resort to holding down the power button a few times just to reboot the computer. I really only use iTunes, surf the web, and play World of Warcraft on it and I've never had any issues until about a month ago. I'm pretty computer illiterate so I don't really know how to fix or diagnose whatever the problem is, but come this September I'll have had this particular iMac for 2 years. I've downloaded every update I can, iTunes or otherwise and nothing is working.
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Mar 28, 2012
I've only used it for like 20 mins. It gets really hot! It's not even on power-charging.
Info:
MacBook Air, Mac OS X (10.7.3)
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Mar 19, 2008
My girlfriend has a 12 inch Powerbook G4. She noticed that the battery life was starting to dwindle. Tonight, she tried using it. It wouldn't power up. The battery indicator showed one flickering power circle. The adaptor has the green circle on it, indicating the battery has a full charge. However, the computer won't charge up.I've read the 12 inchers don't have separate PMUs. Could that prevent the machine from starting? She was using it earlier this evening, as she e-mailed me pictures from our vacation.
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Feb 10, 2008
I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.
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Apr 18, 2008
I had a bad power surge (USB hub that was plugged into the back of the display had the wrong power cord plugged in... very stupid mistake I know!!) take out my 23" Cinema Display. The display shows no sign of life (no power light, etc) and the brick has been tested and is OK. My local service place says that they will have to send the display back to Apple which means a minimum of $400 for repair so I'm wondering if anyone has had a similar issue that they resolved successfully? The service place suggested that Apple would replace the logic board but is there any way to test to see if this is the main issue? I have seen logic boards sold separately online but would be hesitant to buy it without know that this would fix this issue.
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Nov 8, 2007
I made this a new topic because I think it is important enough to do so. Probably most of those that originally complained about this have moved on to the new MacPro but I am sure there are still enough G5 owners out there that still have concerns about this topic.
A clean install of Leopard eliminates the infamous power supply beeping
Its amazing, my G5 is like a new machine; no more of the annoying power supply beep; although, I learned to live with it after a while and didn't even notice it. However, the silence is now very noticeable.
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Nov 19, 2007
Where can I obtain a new 23 Inch Cinema Display power adapter? I've searched the Apple Store but I cannot find it.
Information:
G5 Dual Core PowerPC
Mac OS X (10.5.1)
23 Inch Cinema Display
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Jun 19, 2010
I have found that by plugging in my Apogee Duet firewire audio interface and ONLY WHEN AppleFWAudio was loaded there was a 10c CPU raise that was making my MBP (late 2008) hot!I wanted to monitor the power that was required for Duet to run and to see if the temperature rise was due to that, so:With Apogee drivers uninstalled (just to be sure its not their drivers related, which is notMBP on battery power with System Profiler opened (to monitor the mA required by the computer from System Profiler -> Power)
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May 29, 2012
a friend recently gave me a g5 power mac that had some issues, and the failure was described as intermittant. The machine supposedly would work properly when booted and start freezing up after time, but if turned on the next day it would work properly for some time. I assumed it was an overheating issue, but apperently there is more to the picture. I have tried booting the machine quite a few times and the display always reads no signal. The machine sounds as if it were booting normally, but there is not output. At first I assumed it was my display cable, which was a DVI-D single link, however the DVI-D dual link cable leads to the same result. Is it nessicary to have a DVI-I cable? None of the error LEDs light up on the motherboard. After doing some hunting I haven't found anyone with the same issue, but I am wondering if I should assume the graphics card is dead. What steps do I need to take to isolate a graphics card failure in a power mac g5?
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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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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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