IMac :: No Warning - Just Shuts Off - Overheating?
Sep 14, 2009
I've been having trouble with my new iMac that i purchased recently (26th of August actually). Whenever I'm doing something CPU intensive, the machine just shuts off, but usually it's not right in the middle of whatever I'm doing, it's after I close the application. For example: I was playing SimCity4 the other day, pretty old game to cause this problem I would think. As soon as I exit the game, the system shuts off. No warning, nothing, just shuts off. This will happen when i close VMs (it actually happened yesterday while I was running the VM), etc. So I've reset the SMC/PMU, PRAM/NVRAM, and I've even reseated the RAM. Still the same problem. I've taken it in to a repair center in town, hoping I'll get it back by the end of the week. Does anyone have any idea why this would be happening?
View 22 Replies
ADVERTISEMENT
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
View 6 Replies
View Related
Dec 10, 2014
Ever since I updated to Yosimite - my MacBook Pro is shutting down many, many times a day w/o warning. How can this be fixed?
Info:
MacBook Pro (13-inch Mid 2009), Mac OS X (10.1.x)
View 1 Replies
View Related
Aug 10, 2010
So I am about to order a 2010 Mac Pro. I am looking for opinions from users who own or have owned any recent model (last 2 years) Mac Pro in terms of how much heat they throw off and how much open air space they need. The reason I ask is my custom desk at home has one of those wooden "compartments" that a tower or workstation computer can slide into. If I put the Mac Pro in there, it will be exposed on the front, but the top and all sides will be surrounded. I am sure you have all seen the type of desk slot I am talking about. Its a bit like putting your mac pro in a coffin. with only one side open. do you think this will be a major problem and cause overheating? Or result in the Mac Pro shutting down? If so do you have any suggestions because my desk area does not have any open room for the computer stand with all open air around it.
View 12 Replies
View Related
Dec 26, 2009
my daughter bought a used ibook g4 15" and it worked for several months before developing a maddening habit of shutting down without warning. I've read other threads about this with ibooks but they say it happens only when the battery is operating and doesn't happen when plugged in. My daughter's does it either way and will only stay on for ten or so minutes most times before shutting down. It makes the machine unusable. We've checked the power supply and the power input board. Is this a logic board issue? She paid $450 for the computer but the prices have come down and it might not be worth fixing. I can solder and can get into the logic board if someone can tell me what to do.
View 2 Replies
View Related
Nov 5, 2007
I was hoping you could get me started in the right direction. My wife has an iBook G4 which lately, while using a full battery, just turns off suddenly. There is no warning and it never does it when it's plugged in. The battery looks like it's almost fully charged - at least that's what the meter in the menu says, so I don't know what's going on.
Could you possibly give me some steps to go through to try and figure this out?
The first step she wants to try is to get a new Intel MacBook, but I'd like to try a couple of other things first!
View 10 Replies
View Related
Dec 1, 2008
Laptop shuts down when the battery is at 35% with no warning! Any idea of what to do?
View 3 Replies
View Related
Oct 7, 2007
My school-computer (iBook 14" 1,42 Ghz G4, running OSX 10.4.10) has developed some unpleasant habbits lately. With lots of batterycharge left, 28-50%, it shuts down without warning. I try to restart it, and it gets to various stages of booting before shutting down again. It won't run untill i plug in the powercable, and then it starts of from almost half full charge. I did a bit of searching on the forums, and installed coconutbattery with the attached (depressing) result. Tried resetting the pmu, which didn't stop it from shutting down on me again 46 mins later. Does this mean I need to replace the battery?
View 14 Replies
View Related
Jun 3, 2014
My 1-year old MacBook Pro Retina shuts itself without giving a warning when the battery is at 5-15% of capacity. Idk what to do about it.
Info:
MacBook Pro (Retina, 13-inch, Early 2013), OS X Mavericks (10.9.3)
View 1 Replies
View Related
Oct 1, 2009
I have a new macbook, see stats below.
Up till last week everything was fine, I could run 'Second Life', photoshop, email, a browser, download stuff, play Itunes AND watch a movie all at once without any trouble.
But recently the computer has gone a bit weird.
It started getting very hot, much slower and turning itself off.
View 15 Replies
View Related
Jul 19, 2009
I just bought a brand new imac running 10.5.7 3.06 Intel Core 2 Duo 4 GB 1067 MHz DDR3 i downloaded Handbreak to rip some of my dvd's and put them on my external hard drive as soon as i open handbreak and start ripping a dvd, the fans in my computer start whirring away, pretty loudly i downloaded the istatnano widget to check my fan rpm's and temps
While Running Handbreak:
Fans:
CPU Drive - 3605 rpm
Hard Drive - 2408 rpm
Optical Drive - 2195 rpm
Temps:
HD - 57
CPU A -46
CPU A - 80
GPU - 53
GPU Diode - 48
GPU Heatsink - 47
Ambient - 27
is this ok? is there something wrong? the fans are just so loud
View 4 Replies
View Related
Jun 24, 2009
iMac is been in on the repair bench more times than I can count. Luckily, most of it was under warranty. But I was just wondering, if anyone here's got the same system (or knows someone that does) and has 'modded' it to run cooler?
View 6 Replies
View Related
Aug 25, 2010
I recently got my 3.2ghz mid 2010 21.5' imac. I noticed that its been getting really really hot on the top on the top left and right corners of the computer. Usually i am watching tv series (.avi) files on it using quicktime and vlc and i checked the temps reaching these as follows
HD 54
CPU A 50
GPU diode 71
GPU heat sink 68
memory 58
optical 51
and the fans are at
CPU fan 1470 rpm
HD 1099
optical 1000
are these temps okay? or is htemachine over heating for the activities i am doing, usually i amjust msning, and watching tv series.
View 5 Replies
View Related
Dec 25, 2010
I got an iMac i5 recently, and I've downloaded iStat. It seems as though the HD hovers around 55C, and I think 60C is the maximum. Are there any precautions I should take, or is there nothing to worry about?
View 4 Replies
View Related
Dec 31, 2010
I don't know if it is a fan or a drive that starts up and runs really fast and loud, then the computer shuts off. I always thought it was the fan, but now am not sure. I have moved it to a place where it is exposed to more air, but that has not seemed to help. Does anyone have an idea or solution to this problem? The nearest Mac dealer is about 80 miles away, so if I can fix this on my own, I would like to try.
View 3 Replies
View Related
Aug 21, 2009
My Imac freezes up a lot, usually after 10 to 15 minutes of being on. I suspect it has something to do with overheating. I have to get my data off of the drive before I take it into the Apple store for fear that they will will just replace the drive and all will be lost. I have a fan blowing on it now in the back and am copying data onto an external drive little by little until it freezes up.
I bought it last fall and have a 3 year warranty on it and this will be my second time bringing it in for repair. The first time it was a problem right out of the box when I brought it home and it was replaced. It's a 3.06 processor, 24 inch screen. I am not impressed by the hardware reliability and the all in one system. I am regretting buying the imac after being a PC user for so long and I am using my Windows PC to write this. I suspect the cooling system could be better on my IMAC given the compressed footprint.
View 10 Replies
View Related
Aug 9, 2007
Yesterday a friend gave me a really nice 17" iMac G4 he was planning to throw out because it was having problems. I would really like to get this working and would potentially be willing to buy parts to repair it. I have a significant amount of Apple hardware experience, but would like to get the opinions of people who may be more familiar with iMacs than myself on these forums. The problem is that the computer has random kernel panics. Sometimes it occurs as soon as the computer is turned on, sometimes after it has been on for a few minutes, sometimes after a few hours. So far, I have replaced the RAM with known good sticks, have replaced the hard drive with a tested good one from my collection (and these were both upgrades to boot!) and I have re-applied thermal paste (Arctic Silver) to all key components (CPU, ends of heatpipe, GPU) but to no avail, I still have the same problem.
View 11 Replies
View Related
Sep 13, 2008
I was using my Imac G5 (pre iSight) and it suddenly shut down. It smelled of burnt plastic so I immediately disconnected the power and all accessories, laid the computer down, and took off the cover. Everything seemed normal, except the smell of burnt plastic coming from the fan and faintly from the power supply. I took the metal piece covering the fan and hard drive, and attempted to clean the fan. After about an hour I put the cover back on, plugged my computer back in, and started it up. It again shut down after about half an hour of use. What's wrong? Do I need a new power supply? I checked the Apple Recall and my serial fits, but the symptoms do not follow the ones in the recall.
View 2 Replies
View Related
Mar 30, 2012
I have brought a new iMac 27'' the i5 model. I have noticed that the fans never change speed no matter how hot my processor gets ? Is this normal ? I have ran prime 95 and istat pro to check the temps and fan speeds. Nothing changes apart from the temperature.
Info:
iMac, Mac OS X (10.7.3)
View 14 Replies
View Related
May 20, 2012
I've made the upgrade to Lion and I know that PowerPC do not now work and I have removed all the PowerPC programmes I can see but I still get a wrning saying InventoriaAgent can not start.how do I stop this happening?
View 2 Replies
View Related
Feb 25, 2009
Ive had my Imac for about 9 months and havnt had any issues with it until the past 2 months. The first issue was that i would leave it running for the day and i would restart and get the flashing folder issue. I would then go through all the appropriate steps- unplugging from the power source for 45 seconds +, try booting it with the OSX cd in, ect. At first these steps worked. The next issue i had was a power outage. I followed the same procedure when i went to start my imac up again (mind you it was within 10-15 minutes of it being turned off) and these steps did nothing and the flashing question marked folder appeared every time. I called Apple support and after 2 hours they insisted that it was a faulty hard drive. I let the imac sit for the rest of the day and before i went to bed i decided to give it one more shot. It booted up just fine.
Ive come to the conclusion that im only getting the boot error when it has been running for long periods of time and that the casing feels hot when i try restart. I was wondering if you guys could let me know if my theory of over heating causing the boot error is correct, and if so is there anything i can do myself to help correct the problem? I really want to avoid going to a mac store because its so far away from my location.
View 2 Replies
View Related
Apr 3, 2010
I have an iMac G5 that is starting up, then working okay for 1-2 minutes. After that, the processor usage goes way up, and the fans start spinning loudly. It's a first generation 1.8 GHz with a 17" display. Mac OS X Leopard. Recently, it spun up and then shut down and wouldn't start again. The room it's in is < 75 degrees F. No malodor, or other symptoms save for hot to the touch. Has been left shut off and unplugged for a few hours, and still has this problem.
View 8 Replies
View Related
Apr 13, 2012
I am attempting to install MySQL on my iMac. I downloaded the DMG packages and instaled them, then the instructions I was following from this [URL]. It told me to install a mysql connector (I am new to all of this so I dont know what a mysql connector is). This did not have a DMG package available, so I downloaded the tar.gz as it was my only option. Following the instructions I opened terminal and entered the following command (as shown in image above): sudo pico /etc/my.cnf. I am concerned about the warning message - this is a work computer and I cannot afford to replace it if something gets screwed up.
Info:
iMac, Mac OS X (10.7.3)
View 2 Replies
View Related
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...
View 2 Replies
View Related
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.
View 16 Replies
View Related
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.
View 15 Replies
View Related
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)
View 2 Replies
View Related
Apr 19, 2010
Have a 17" G5 iMac iSight (OS 10.5.8) that works normally for several hours and then the CPU temperature suddenly spikes and the computer shuts itself down. When I check the Temperature Monitor (application) history graph, it shows normal temperatures and then a spike. There are 3 fans and I don't know which is failing or whether there's something in the temperature sensing that's gone haywire. My only solution is to do a forced restart. By this time, things have cooled and it will work for several hours.
View 1 Replies
View Related
Dec 25, 2008
I have a 700MHz iMac G3, which froze during DVD playback and it needed to be rebooted. Now it will not boot, the gray screen comes up with the loading circle, but it will just shut down after about a minute. I have reset the PRAM, PMU and it is running 10.4. No beeps or anything when it shuts down, it just turns off.
View 13 Replies
View Related
Jun 1, 2009
Sometimes when I turn my iMac on, it'll start doing its thing�light comes on, chime goes, fan whirrs, but then it'll make a strange click/"werrrrh" noise and turn off.It's happened twice to me since I've brought it home from school and each time I just tilted the monitor around while turning it on and it worked.I have been avoiding turning off / restarting my computer because I'm afraid its going to happen and I won't be able to get past it.Could the powersupply be loose or something?
View 1 Replies
View Related
