I have a 3.06 Intel Core 2 Duo iMac with Snow Leopard. It is completely up-to-date and has always ran beautifully. I have not installed any new programs lately. Recently, when I go to APPLE > Restart (maybe after an update or just because I like to restart my computer on occasion) the bar at the top disappears, my dock stays up on the screen, and the computer just sits there and freezes up on me. I am forced to hold down the button on the back to get my computer back. Here are the things I have tried:Re-install of the latest update using Combo Update Reset PRAM Repaired Permissions Booted from disk and ran a Repair Disk Complete zero-out of the HD, clean install of Snow Leopard, and reinstallation of everything from a Time Machine backup Nothing has worked...The other problem is that it only happens when my computer is on for several days. If I restart daily, it doesn't happen. So, it makes it hard for me to log-in as a different user for that long to initiate the problem. I think it has something to do with a program that I may open and close throughout the week but I have no way to pinpoint what program it is.
Since the last itunes update (May be a co incidence) , my 27" Mac keeps crashing with a white screen and flickering¬†¬† It then wont restart most times, even when using boot up options such as option, Cmd P+R. even removing power!waiting and restarting etc on most restarts wont work its a white screen.
Info: iMac (27-inch Mid 2011), OS X Mavericks (10.9.4)
What does this error message mean? I have had my MBA since Feb, and never had this error. I get the error, in several languages, and the computer is frozen at that point. A restart gets me back up and running until it happens again, usually within; an hour or so. Always while using Safari.
I got my IMac 3 years ago just recently started running slower in the past couple months, nothing too bad though. However just yesterday it became unbearable to use. 10 min to start up, once it was on took forever to open up any files etc. So I did some research online and I decided my best option was to reinstall the OS with my startup disk. I did that and erased all my harddrive (nothing important on it.) After doing that it ran great like brand new. Today I turn it on, it continues to work great for a few hours then it freezes in me. I held down the power button to restart. Turned back on and it was stuck on the white apple startup screen. After 15 min I decided to power it off and let it rest a while. After resting it still won't start up.
Yesterday I was working away at it when suddenly the screen freaked out, there was blocks of color everywhere and the mouse was acting strange (jerky, up was down, down was up etc etc) I had to hold down power to repair it. When it started loading it froze the little circle in the middle stopped spinning and I had to restart it. Then the same thing happened again froze. So I started it in safe mode then restarted again. This time everything was back to normal. But today again I was just using the computer when everything went all glitchy again and same thing, this time when I went in safe mode the screen darkened and a box in the middle said something was wrong and to restart my computer.
My MacBook Pro early 2011 13" freezes, requiring a hard restart when the CPU temperature stays in the 195 F (as measured by iStat nano) range for more than a few minutes.† The fans run appropriately.† I am running 16 GB of RAM, most of which is not being used during these 'hot' episodes (according to Activity Monitor).† Typically they happen when Mail is trying to connect to iCloud and can't seem to do it.† Then the spinning beach ball.† Can't force quit or restart from the Apple menu.† I'm using 10.7.4 on a dual core i7, 2.7 GHz unit.
Info:MacBook Pro (13-inch Early 2011), Mac OS X (10.7.4), Speck clam shell translucent case
I have a base 15" mbp 2010 model. I wanted to restart my laptop several times and this happened about twice now. I had to force shutdown by holding the power button, but this can't be healthy for it. Here's what happens, I go to apple>restart and then my desktop icons and taskbar, finder bar goes all away so that only my desktop background is showing, and it stays there. I can still move the cursor with my trackpad but me being new to macs, i don't know any keyboard shortcuts to bring up the activity monitor and stuff. Is something wrong with my macbook pro?
I put in a cd that my computer was unable to read. I tried to eject it using disk utility but it failed. I read that another option was to restart the computer and hold down command, option, o, and f at the same time to open disk firmware to eject it. instead of actually working, my computer froze at the rstart screen, and i have no idea what to do - and i am unable to insert a disc.
I have a macbook pro, bought it May last year(2008). I don't know much about computers, but I loved the transition between pc and mac, had no trouble with it, loved to work with it, until now. I had noticed it became slower like 3 weeks ago, and a week ago, it started to freeze up on me followed by a message that said please restart your computer by pressing the power button and the screen becomes dark. When I try to restart it again, it takes a while because it shuts down again and again, until the 10th time it works. The store told me to clean intall, which I did yesterday, it seemed to have worked, it was faster for sure, but today it happened again, 3 times! Has this happened to anyone? Does somebody know what to do?
I have a newer iMac 24" bought in 11/2007. I have the mini-dvi to vga converter and when I connect it to a external tv capable of 1024x768, the iMac freezes and does nothing. I disconnect and the screen turns blue and the flickers back on and everything works. I have made the connection then booted up, and I have tried every resolution all the way down to 640x480, same thing it just locks up the screen, but again as soon as I unplug the mini-dvi to vga cable from the iMac it flicks to a blue screen and everything comes back. I have reviewed dmesg nothing, and revieiw /var/log/messages. Is there any troubleshooting I can do. I am old school unix/linux guy just converted my family to Apple and would like to use the display on my tv to watch my iTunes movies.
I have had a G5 iMac for several years. It has OS10.5 installed and I had two exgrnal hard drives attached. Recently it began to slow down quite a lot and I have been trying to clean it up and get rid of files that weren't required. Yesterday when I tried to start it up the spinning circle with the Apple logo in the background was replaced by a no entry sign. In order to try and do a safe restart I have held down shift. I have held down C and I have even tried shift and C, but nothing is happening.
I have a 2003 17" flatpanel imac (1 GHz)I've been using it for the specific purpose of running some old OS9 software.It's the only way I have to get to some old files.It's been working fine.Then, after a shut down, I cannot get it to restart.Push the power button. Nothing. No sound. Nothing.I've uplugged it for 30 seconds and replugged and tried to restart.Nothing.Is there any other type of power management restart I can try?I have several other newer macs, all running 10.6 or 10.7, which I use for 90% of my work. But this one machine is my only link to these old (OS 9) files which I still need to access.
I'm suspicious it's something to do with the power supply because after about 4 reboots where I hold the power button down until a horn beeps, it will start. It first only boots to white screen...reboot...comes up to white screen with Apple in middle...reboot...comes up to blue screen...reboot...boots fine and operates fine.¬†¬† I do notice that it reboots every once in awhile for no apparent reason.¬†
I recently had a hard drive failure in my imac which i replaced with the the samsung drive listed below and a fresh install of snow leopard. Now i am experiencing a problem when waking my mac from sleep. about 50% of the time when it wakes it will immediately freeze which can only be resolved by a reboot. Could this be caused by this new drive being a "green" drive that conserves more energy when asleep by going into a slower state than a typical drive or is this a software issue?
imac 2 ghz 4 g ram Hard Drive SAMSUNG HD154UI 1.5 t
i have an imac with 500gb hdd 3.06 ghz and 4gb ram, im running os x 10.6.4 snow leopard. every time i go to shut down the whole computer freezes i cant click anything, all i see is the wallpaper and nothing is running when i click shut down.
My iMac won't shut down completely any more.It gets to a white screen and then freezes, and I have to hold down the power button to get it to shut down.I have also been getting intermittent kernel panics, maybe one every 3 or 4 days.I went through all of the troubleshooting steps to try and figure out the cause, with no luck.†Did a new install of Lion and everything seemed OK for a few days, and then started having problems with programs not responding, not being able to shut down, and now getting kernel panics again.Considering completly formatting the drive and starting fresh with everything, but not sure if that would solve the problem either.
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?
I'm having a problem with my Mid 2007 iMac. Some files copying from a DVD (Logic Express 9 Demo Content), cause my iMac to restart. I know the files are fine as I can copy from another mac. I've had this problem twice before since I've had my mac (Oct 2007), but it was in reverse (trying to burn to a DVD). Everything else works fine copying to and from the drive. I want to ring Applecare, but I can imagine that they will say don't worry about it, since its only them files, and everything else can copy fine.
I've tried all the basic stuff: -checking a new account -permissions -pram -and the smc