IMac :: System Completely Freezes At Random Times

Feb 4, 2009

The last 2 days my iMac has completely frozen on me at random times. Frozen meaning, no mouse movement, no keyboard activity (caps lock not responding) and no OSX activity whatsoever. Temp at the time 41C, CPU Usage at 21% or smth, Fan speed at around 1200rpm. However, I don't get the infamous kernel panic error. I haven't changed anything hardware wise. I did have a couple of months ago the graphics glitch problem. Last software update was the iWork one. iMac is Aluminum 20' with C2D 2.4 and ATi 2600 Pro.

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Intel Mac :: Get A Random Door Bell Sound At Random Times?

Jun 27, 2012

I get a random door bell sound at random times, even if the IMac is off.  What do I do?

Mac OS X (10.6.6)

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MacBook Pro :: System Completely Freezes For 10 Seconds

Jan 5, 2010

So my Macbook pro started to stall for 10 seconds or so every few minutes beginning yesterday. Like I am just surfing the net, and it freezes completely for 10 seconds, than everything is back to normal. I don't know what to do to remedy the problem. I have Applecare so I could send it in, but wondering first if anyone has had this problem and knows a quick fix before I send it in.

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IMac :: Intel Core 2 Duo OS X 10.6.5 Completely Freezes And Crashes

Nov 24, 2010

I have a problem with my iMac 2 GHz Intel Core 2 Duo (2 GB 667 MHz DDR 2 SDRAM), running OSX 10.6.5. OSX crashes and freezes all the time. Nothing works anymore. Sometimes it just freezes, and I can only move my cursor, but nothing reacts anymore. Sometimes the screen blacks (or sometimes blanks) out or shows the weird moving colours as shown on the photo I just took below: After restart, it often happens again and again. Then the iMac is fine for a couple of days, before it freezes again. Can anyone diagnose the problem from the info above?

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IMac :: Very Slow Logout Times Of My System?

Apr 2, 2010

Everything is fine and great with my iMac 27 except for the fact that logging out and rebooting takes ages. I've already disconnected all 3rd party USB devices and logout/reboot times are still close to ~3 minutes.

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OS X :: Motherboard Is Shutting Off At Random Times

Apr 11, 2009

I have an old HP Pavilion 700 that I am having trouble with. A few months ago, I replaced its power supply because the fan inside of it would start up for about a second and then shut off. The problem I am having now is the fan (shown in pic) connected to the motherboard is shutting off at random times and causes the external display to go blank. But the fan inside the power supply will always stay on though. Sometimes, I can get the computer completely booted up for about 10 minutes and use it just like normal before this happens. Other times, I can only get as far as the startup screen before the fan and screen shut off.

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OS X :: Wireless Connection Dropping At Random Times?

Dec 2, 2008

I'm using a Macbook 13" and am running 10.4.11.

So the problem that I'm having is that at random times I lose connection. At the same time the PC-s that are connected to the same network have connection, plus the ISP said that everything seems to be fine on their side. So there seems to be an issue with the WiFi on the MB. It just loses the connection and can't find it for about a minute and some times it takes about 5 minutes for it to reconnect to the network. And the problem isn't limited to only one network, but actually happens in different networks. It started as a minor inconvenience, but now it's starting to really bug me. And it seems that I'm not even making it up: [URL]

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OS X :: Random Sound Plays At Different Times In My Macbook Pro

Jul 30, 2010

I am a new mac user and a sound similar to the "Frog" sound effect keeps playing at random times and with no apparent reason. It just plays and at different times...Sometimes it's every 20 seconds, sometimes more or less. I disabled the sound in System Preferences and it kept playing. I don't know what else to do since i'm new with mac I also reseted the PRAM and it stopped for a while but now it started again. I've noticed that most of the times it sounds when i'm charging the battery, i don't know if it has something to do.

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MacBook :: CD Eject Noise Heard At Random Times

Dec 6, 2009

So essentially the title says it all. My Macbook has been making the "eject-a-cd" noise at random times since about yesterday. As of yet I have not attempted a restart.

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Applications :: Safari Window Opening At Random Times

Mar 16, 2010

my mbp has a very strange problem. when i was using my computer it will open a window of safari once in a while. and i am sure i didn't thouch anything.

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Software :: Experienced Kernel Panics At Random Times

Feb 14, 2009

I have experienced these kernel panics lately, at completely random times, I don't know what the problem is. All I really have so far, is the panic.log.

My specs are:
Powermac G4 MDD 2003
1gb ram
80 gb hard drive
1.25GHz PPC G4


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OS X V10.6 Snow Leopard :: Screen Goes Black At Random Times?

Jun 6, 2012

iMac 27 the screen goes black at random times. If left for a time and by pressing ctrl, Shift Eject, the screen comes back and can remain on for the rest of the day. However, the next day the same thing happens.  

Energy saving set to - Hard disk never sleep, Screen sleep in 15 mins.

iMac (27-inch Mid 2010), Mac OS X (10.6.8)

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OS X V10.7 Lion :: Kernel Panic When Watching Videos (and Other Random Times)?

Mar 27, 2012

I'm aware of the Airport issue mentioned on these forums (and have tried the kext fix for that without any luck).  I have KPs when watching 4+ minute long videos on Youtube (have no issue using iMovie for longer videos or watching videos from my own harddrive), sometimes when the screensaver is on or shortly after the computer goes unidle, and sometimes for no apparent reason. I've already had 2-3 KPs in the past 4 hours. This is my first Mac and not at all what I was expecting.  

Sometimes the screen will flicker rapidly, other times I will get a black screen, pink screen, or the screen will "glitch" and move halfway to the left (right is now on the left and left on the right). I can sometimes delay the crash if I pause the video (the screen starts to twitch or have "lightning" flashes across parts of it) but it will eventually crash anyway.  

I usually use Firefox but have had the same crash in Safari so it's not browser-related as far as I can tell. 


iMac (27-inch Mid 2011), Mac OS X (10.7.3)

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Mac Pro :: It Freezes Several Times A Day?

Jul 3, 2012

My Mac pro is running slowly and get the pinwheel often. It also freezes at least once a day.

Mac Pro, 2 hd one for mac one for windows

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IMac :: Will System Freezes With WiFi On?

Apr 26, 2009

Right now I'm saving for the 20" model (2.66). Would The 20" 2.66 iMac Freeze Like The 4850 Issue? Will it freeze like the upper model with wi-fi on? Making sure before I invest in an iMac.

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IMac :: Replaced HD But System Freezes On Startup

Nov 10, 2009

I have a early 09 iMac 2.93Ghz with 6GB of ram. About a month ago it kept freezing at the grey startup screen. I took it to Apple and two trips to Apple later my hard drive was replaced. One month later here I am and the problem is happening again, the same exact problem. I turn on the iMac it goes to the grey screen, the beach ball "like" thing starts spinning and then it freezes in the middle of it and I have to do a hard power off(hold down the power button). Any ideas!? I already scheduled a appointment with Apple tomorrow afternoon but its a royal pain in the a** to keep shuffling my iMac between home and the Apple store. This will be my 4th trip in for the same problem, btw.

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Mac Pro :: Seemingly Random Freezes In Leopard 10.5.4

Sep 9, 2008

In the last week or so i have been experiencing lock ups every 15-20 minutes, which last for around a minute. The problem has only presented itself after I moved to a dual monitor configuration, although this may be coincidental, given the nature of the problem. The problem only seems to occur when the system is reading from from the main hard disk however testing the disk (and performing a directory/file test) says that the disk (and all others in the system) are functioning properly.

Curiously, any audio playing at the time, regardless of the application it originates from, continues to play while the rest of the system is unresponsive. It also appears as if the keyboard and mouse are disconnected during this time, and the power lights on each begin to flash, and the Caps lock key no longer lights up. I would like to avoid replacing the system disk if at all possible, as i have already had to do this three times since last December, when i purchased the system, due to drives developing faults.

2x Dual-Core Xeon 2GHz
NVidia GeForce 8800 GT

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Mac Pro :: Endless Beachballs And Random Freezes

Feb 8, 2010

The issue I'm having is very weird taking into consideration that I just upgraded my hardware two months ago. I have an Intel X-25M SSD as my boot drive for OSX and a 1.5TB WD HDD with my Home Folder on it. Whenever, I launch an app it never launches immediately. I get a beachball that lasts about 5 seconds. When I try shutting down the computer I have to hit shutdown about 3-4 times before it does. Otherwise, it warns me with a message thats something like this: System cannot logout of user account because Safari is still in use. (but it's closed). Launching an app from an ssd should be instantaneous. So I don't understand if it is a hardware or software issue. I reset the PRAM ... helped for about a day but I'm back to the slowdowns. Any ideas. Also when I performed a software update for iTunes, the update installed but I got this warning so I have a feeling something is wrong.

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OS X :: Mac Sometimes Completely Freezes - While Using Iphoto?

May 25, 2010

This is an issue I've come across with Macs the last few years & it's only taken me until now to raise any question as to why. It's not specific to Snow Leopard.

Sometime after using my Mac for a while it will just completely freeze up without any explanation why. The CPU is below 50% and still has around 100mb free memory. Eventually if I leave my machine long enough it will get to the state where I can quit a few apps, but it still be awfully slow until I restart the computer.

I admit that I very rarely shut my computer down, most of the time just sleep repeatedly for as long as 2/3 weeks... This isn't a specific issue to the machine, I've experienced this on my old iBook, iMac & now MacBook Pro.

while using iphoto

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IMac :: System Freezes - Can't Move Mouse - Chocking On Audio

Aug 30, 2009

I have late 2007 Mac mini and I have Snow Leopard installed and I was simply watching a Youtube video and then all of a sudden the entire system freezes (couldn't move the mouse) or anything and started choking on the audio (replaying a bit over and over)... had to manually power it off. The hard drive was replaced several months ago at the Apple Store... so I doubt it's the HD. The Mini is back on now of course... it's running fine, but I've never seen anything like that before. Anyone else ever have this issue?

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IMac :: System Freezes And Running Very Slow With Snow Leopard

Mar 25, 2010

I have a 20" iMac mid 2007 2.4Ghz, 320GB, 2Gb machine running Snow Leopard. Today I turned it on and it was running fine. But around three hours of using it suddenly froze. I had to force the turn off using the power button. When i turned it back on it took about 4 mins to get to the login screen. Once I logged in the spinning wheel came up and the only think that loaded was the Spotlight sign. This kept happening until about the third time of turning it off and on. When it finally completed login. But it is now extremely slow and it just about freezes when I open more than one application.

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OS X :: Mac Snow Leopard Random Beachball Freezes

Oct 13, 2009

Since I use Snow Leopard I get randomly (around 1 to 10 ) freezes. When I get it I can click some applications but can't make changes in it. The beachball keeps spinning for some seconds and after the wait I can just continue working. I first thought it was Firefox, because it almost everytime happens when I am browsing the web, but I get the same with Safari.

It's getting verry annoying now :-(

I already checked:
- Repair disk
- Repair disk permissions
- Run Apple diagnostics

Repairs my 1.5 year old mbp already had:
- 2x keyboard
- Topcase
- Logicboard
- Superdrive

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Intel Mac :: Getting Random Multiple Freezes Of Programs

Apr 23, 2012

I am getting random multiple freezes of programs and finder  10.6.8  imac11,1, 2.66 intel core i5, 27inch requiring a restart.  Doesn't seem to matter what the programs are running and sometimes can't get a program to completely quit with force quit. 

iMac, Mac OS X (10.6.8)

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OS X Mavericks :: New MacBook - OS Completely Freezes

Jun 30, 2014

I just got a MacBook last week, and am running 10.9.3.  Twice so far, I've been using the computer and the UI ceases to respond:  no response to keypresses, no response to the trackpad.  The only way out seems to be a hard reset of the computer. This is a brand-spanking new Mac, although I have installed QuickSilver and Firefox.  Have there been any issues with freezing on 10.9?

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OS X Yosemite :: IMac Retina Freezes And Restart Randomly On Clear System

Dec 2, 2014

my iMac random freeze and restart, on console i not see any message about kernel panic and etc system clear install ! what's happened ?   

log1  System Version: OS X 10.10.1 (14B25) 
Kernel Version: Darwin 14.0.0
Boot Mode: Normal
Model: iMac15,1
RAM details...[code]....

iMac, OS X Yosemite (10.10.1)

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PowerPC :: Powerbook G4 1.67GHz - Random Hard Freezes

Oct 4, 2007

My girlfriend has a 17" G4 Powerbook - she recently bought it second hand. It's one of the late models, with a 1.67 GHz processor and 2GB of RAM installed. It runs like a dream, except for one thing - it has a propensity to freeze occasionally. They're not kernel panics - they're hard freezes, where everything locks up completely. Can't move the mouse, can't force quit, nothing - the only thing to do is switch off and on again. I've looked through the logs and can't find any crash reports, so I'm at a loss to what's causing this. The only lead I have is that it only seems to happen when the machine's running on battery - it's never frozen when the power cord's plugged in. I thought it might be overheating, but it froze this morning after only 5 mins of use, so now I'm stumped.

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MacBook Pro :: Safari Takes Time To Load Some Times It Just Freezes

May 18, 2012

My macbook pro is just year old when using safari it is slow and takes time to load pages and sometime it just freezez

MacBook Pro, Mac OS X (10.6.8)

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PowerPC :: Random Freezes - Fans Spinning Up To Full Speed On G5

Oct 2, 2006

I have a 1.8Ghz dual processor G5, 1GB Ram, 80GB HDD, with OS X 10.4.7 installed and all current updates, and today I was working on it and the fans on it slowly started speeding up, and then everything on the screen disappeared and a mesage appeared stating that a restart was required. After restarting everything seems to be working fine, but I'd like to know if this is a fluke or if I have a serious problem.

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MacBook Pro :: Random And Frequent 10.6.2 Freezes Or Spinning Wheels Of Hell

Dec 13, 2009

For a few days now, my 13" MBP (purchased in August; painfully clean-install upgraded to Snow Leopard in October) has been freezing into spinning wheel mode randomly every few minutes. It would seem that this happens particularly often in web browsers (but also when no browsers are operating and I'm typing away in Text Edit or chatting in Adium and Skype). When the browsers are on, the FlashPlayer would occasionally crash. No matter what app froze first, whatever else I click on also freezes.

The freezes happen most frequently after the computer has been to sleep and woken up by opening the lid. The wheels go spinning for up to two minutes, and then everything goes back to normal (for up to 3 mins before freezing again). The longer the comp operates after that, the rarer they become, and after a few hours they rarely happen at all (then again, some times they do anyway). On some occasions, everything freezes so badly I need to hard-reset, and then it takes the comp upwards of 15 minutes to reboot - and then everything keeps freezing, of course. Contrary to other reports of similar problems here, no CPU jumps appear to be happening during the freeze. I tried:

- Running Disk Utility after booting from Snow Leopard . Some permissions (which in forums here were referred to as inconsequential / not related to freezes) were repaired; HD in general "seems to be ok."

- Running RAM tests (with Rember, supposedly updated to Snow Leopard). Everything seemed fine

- Getting rid of the ARD agent (which was related to some of the permissions mentioned earlier)

- Stopping Bluetooth (as someone here with a similar problem thought it helped)

- Installing the Beta Adobe Flash Reader (same as above)

Nothing helped. I really don't want to take it to the lab; I live in Israel and the comp was purchased in the States, which means that the only licensed lab here reserves the right to keep the comp for up to 26 working days

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Safari :: YouTube Video Completely Locks Up Browser And Freezes

Mar 20, 2012

It seems whenever I launch a youtube video, there is a tremendous lag that occurs for a good 30 seconds before my video is able to be seen. It completely locks up my browser and freezes. Thought it was my iMac at first, buy Firefox works fine. I reset everything on Safari and still nothing.

iMac, Mac OS X (10.7.3)

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