MacBook Pro :: Heavy, Continuous System Lag, Kernel_task @ 100%+?
May 27, 2012
i was playing Diablo3 when i suddenly experienced heavy, unusual lag. I tried to reboot to see if that could even things out. No success. It took longer then usual to boot up, and when i finally reached the login-windows asking for password, it wouldent react to my typing and clicking for about 5 minutes. I could move around the mouse and the keyboard did get signal (it un-dimmed the scren when i pushed any key after letting it dim over time).
Then i tried to do a clean install of OS X Snow Leopard (formating the drive and then install). After longer then usual,reached the "choose your language" window. This window too had extreem long respond-time. I managed to start the installation but it stopped at 33minutes remaining, giving me the "Install Failed" window. this told me "Mac OS X could not be installed on your computer. The installer could not copy the necessary support fies. Click restart to restart your computer and try again.". I tried it again but it gave me the same result.
it made me believe the hardware was the problem. First i swapped the Optical Drive with an older vrsion MacBook (2008), this gave me the same install-problem (stopped at 33mins left) Then i swapped HDD with the older MacBook. It managed to boot and start "normally" with exactly the same problems as the original HDD. The first thing that gets to my mind is that something might be fried inside the computer.
I restored the original HDD with TimeMachine (needless to say i still got the problem). I'm in the middle of my exam-papers, so its reaelly annoying its happening now.I also tried installing OS X SL using an external HDD with an image of the installer disk made in disk utilities, but this only gives me "kernel error" during booting (the annoying dimmed screen with a black box in the middle telling you to restart).
Today i took a look in the Activity Monitor and it shows the CPU acting strange, spending 100-120% on kernel_task ALL the time (see added picture).Is something wrong with the CPU? Is it possible to fry only one core in a CPU leaving the others intact?I have different components available for change as long as they match each other (Macbook pro 2010 and MacBook 2008).
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Info:
MacBook Pro, Mac OS X (10.6.8)
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Apr 14, 2012
I bought Brand New Macbook pro 15" Late 2011 Ci7, this is incredible machine. But a month past and i started to notice a very strange behavior: When i using mac for resource "Eating" application or processes my computer starts to Heat-this is normal.
When i close all the apps here starts interesting) I have Istat installed, so i can see what temps are in my system. Computer is cooling, and when cpu reaches 50-55 degrees (Celsium, from 80 degrees, because of heavy load) ,my left speaker produces a single loud pop sound. (like something turning of may be)
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.3)
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Mar 11, 2012
I bought a MacBook Pro 13" in August 2011. A few days ago, I started to get a triple alarm sound (beep, plus battery indicator light flashes three times) and the system freezes (no keyboard or trackpad input, screen stays on). The triple beep continues until I shut it off through the power button.
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.6.8)
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May 7, 2010
I have just received my 3rd "You need to restart your computer" fatal message in 10 minutes, and I believe that it might have something to do with my external harddrive. I have attached the recent error log jut below:Quote:
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Apr 8, 2009
My MBA (Ver A 1.6) just started getting the "sluggish" symptoms. Started noticing that my CPU gets stuck at 90~100% after about 30 min of use, since about a week ago. I keep restarting the computer and after about 30 min, my MBA becomes very sluggish and iStat shows both CPU bars all the way to about 100%.
When this happens, the activity monitor shows the kernel_task at 125~130. This is too high, right? If it is, what's causing this? I can't imagine that any of the programs that I regularly use will cause this.
Here's the screen shot of the activity monitor.
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Apr 14, 2012
I recently did a Lion clean install and since then im having this wierd issue..I already saw some cases that the kernel_task was eating too much cpu but that was random and caused by flash player.. mine is different.. it only happens when i have less than 5% battery and it stops when i connect the magsafe. I already tried PRAM reset.. already tried uninstall flash player but with no luck. What can i do ?
Info:
MacBook Pro, Mac OS X (10.7.3)
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Apr 1, 2012
Just got the MBP 13 inch not too long ago and this is going on. The fan won't shut off and the computer is running slow.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jun 24, 2012
I have a 27" iMac running OSX Lion 10.7.3. Some time in the last 2-3 weeks, it has started to getting into a state where the kernel_task is using 100% of one CPU constantly. When this happens, it also kills my Internet connection and I cannot use the browser, email, Skype, Twitter, etc. I have tried putting it to sleep, closing all programs that are open checked the process list with ps to see if I could find anything weird, but it still keeps happening.
I have to restart the computer whenever this happens. It might happen again in a couple of minutes or not for several hours, but happen it does. I thought it might be Chrome or Mail for a while, but it happened today when those were not running.
Info:
iMac, Mac OS X (10.7.3)
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Jun 11, 2012
Comparing the updated MacBook air and pro 13 inch, for the high end version of both models, which laptop comes out better for performance? Add the 8GB of Memory instead of 4GB and potentially the 2.0GHz i7 upgrade to the air and does it bring it up to higher level than the pro? Primary use is for study needs (so portability is important) as well as music, videos, and games such as the GTA's, sports games and games like Civ V. Is the pro too heavy? Is the air to structurally flimsy?
Info:
iPad 2
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Aug 30, 2014
My MackBook Pro heats up pretty bad even when i'm not doing heavy tasks. What could be the cause?
Info:
MacBook Pro, OS X Mavericks (10.9.4), mid 2012
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Jul 24, 2009
Just bought a 23" dell monitor and BT keyboard (already have wireless Logitech mouse) to use with my late 2008 MBP.
Almost immediately I noticed I was getting frequent 'Connection to Keyboard lost' errors, almost 100% of the time this happens the Wifi is under heavy use moving large files to my NAS for example.
I searched Apple support and this appears to be quite common and 1 suggestion was to change my airport extreme base station to use 5GHz instead of 2.4GHz for the network. This tweak seems to have solve the issue 100%, the only downside is not all of my kit can use 5GHz .. for my work laptop I've invested in a new wifi adapter that'll cope but my Apple TV and iPhone can no longer connect to the WLAN.
Anyone else have an alternative solution for this? Or is it pure and simple down to BT interference and I should perhaps ditch the BT keyboard for a wired one?
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May 20, 2012
My 13" MacBook pro gets really hot without extended or heavy usage and the fan's noise is annoying, my friends say this is not normal.
It gets really hot especially when there is flash content
Info:
MacBook Pro, Mac OS X (10.7.2)
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Apr 23, 2010
I got my macbook pro core i7 yesterday. I found that the cpu temperature is 20C more than the cpu heatsink. is it a problem of my mbp? just curious to ask because it is just 2~6 degree Celsius varying in my mac mini.
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Apr 5, 2012
Why is my notebook (MacBook Pro) beeping on startup and the screen stays black?
Info:
MacBook Pro
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May 20, 2012
Earlier today, maybe around 3PM, I was using my laptop, and it was charging and it was maybe around 60% battety life when out of no where it just shut off and even the light on my charger went out. When I turned it back on, the fan was running and there was an X over the battery icon. I've tried turning it off and on, and leaving it alone for a few hours, to see if it would resolve the problem but it didn't. It is currently 9:52PM, I'm still experiencing these problems and I'm using the exact laptop to type this, but I don't know how much battery life is left.
Info:
MacBook, Mac OS X (10.6.8)
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Sep 1, 2014
I am currently editing lots of pdfs and other files for notes. There is one particular big file, ca. 300 MB (part of a book). When I edit this file in Preview (underlining etc.) and save my changes, I loose almost the whole size of the file in disk space.
Saving 10 times, that equals ca. 3 GB. Since I am a diligent "back-upper", I loose ca. 3 GB every 90 minutes. Over the last 3 days, this has consumed more or less 40 GB of my storage space. I have restarted several times and had to delete a lot of files; the sleepimage file is ca. 1 GB big only, so that is not the problem;so I have used "Disk Utility" to localize the massive space use.
Disk utility registers the storage loss in total numbers (35 GB free, next time only 32 GB free), but not within the folders (the single sizes of the folders -Application; Library; User etc-), their sizes stay the same!what happened to my disk space. I need to restore those 40 GB they are being used by something completely useless somewhere.
Info:
MacBook Air, OS X Mavericks (10.9.4)
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Nov 11, 2007
For the past month I think I've kept my macbook plugged into the wall. And the battery meter now says 95% but it says fully charged and the green light is on? Is keeping it plugged in hurting my overall charge?
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Jun 8, 2010
Has anyone else out there ordered and received the MacBook Pro with HD Matte finish? Today I received my new MacBook Pro (the brand new 15" with 8Gigs RAM) with the HD display matte option. I was surprised by the silver bezel but have discovered that is normal. What I am not as sure about is there is no longer a smooth surface glass enclosure. (The silver bezel sits deeper in the enclosure and the screen a bit deeper still - there is room for a glass overlay.) This likely makes sense because of the antiglare, but I wanted to make sure. I guess I'm used to the old MacBook Pro 2.8 with the continuous monitor surface. Can anyone out there verify that I am not 'missing' the glass enclosure?
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Aug 7, 2010
I put my MacBook on charge but nothing happened there was no orange or green light and in the top right hand corner it said 'not charging' . I tried it a few more times and then the led just flicked from green to orange so I shut the mac down just before it ran out of battery. I then borrowed my friends macbok charger the same power as my other one but now the led just flashes orange and as it mac won't turn on I guess it's not charging it properly.
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Apr 10, 2012
the backspace, the space bar and another keys in the keyboard of my macbook aren't continuous, how can I fix it?
Info:
MacBook, Mac OS X (10.6.8)
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Jun 4, 2014
My MacBook Air's (2008) screen went blank. Now the power light flashes and it beeps continuously. I have tried rebooting, but no change.
Info:
apple, Mac OS X (10.6.5), iPhone macbook air iPad AppleTV (both)
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Dec 7, 2014
Product Name - MacBook Pro (Retina, Mid 2012)
Processor - 2.3 GHz Intel Core i7
Memory - 16 GB 1600 MHz DDR3
Graphics - NVIDIA GeForce GT 650M 1024 MB
Serial Number - C02J1192DKQ4
OS - OSX 10.10 .1(Yosemite)
Problem - It happened couple of time, earlier it happened when I was opening "Nordstorm.com" (I know, it was Black Friday time ) and it happened yesterday again, while opening VICE.com. When the problem occurs, machine hangs and after some time I can move cursor, but can't do anything. I have to hard restart the machine. after machine restarts, it shows a popup saying that a graphics problem detected and do you want to report it.
I suggested switching off "graphics switching" from energy menu in system preferences. even that crashed the machine first time when I tried that. So I have graphics switching off for now. Don't know for sure if it is OSX bug, Chrome/Browser bug or something else.
Info:
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)
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Mar 4, 2012
I left my mac turned off for roughly a month. When I turned the computer on, the gray apple screen and the load bar appeared to start up the computer. Shortly into the loading process, the loading circle appeared (rotating circle seen to indicate loading in programs such as iMovie and Safari etc). The start up load bar disappeared and the load circle has now been rotating infinitely. I have tried pressing command+r and turning off the mac and turning it back on. I have plugged it into a power source. It won't let me past this gray screen. How do I get into my mac?
Info:
MacBook Pro, iOS 5, Bought in June of last year
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Mar 23, 2008
I do not own any Mac at home, but looking into one for college. I have read up on all the pros/ cons of the MBA (non-removable battery and RAM, lack of ports and optical drive, etc). I am not a computer gamer, so I stick to the consoles. I was wondering if a MBA is ideal for any kind of music production. Can it handle heavy music editing with GB or Logic Pro? Is it ideal with the somewhat "lack" of external ports? share your opinions and/ or experiences with music production for fun or work on a MBA. (By the way, I am asking this to decide whether I should be looking into a MBA or MBP for college September of 2009, so I have LOTS of time to wait for newer models).
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Apr 24, 2012
I have a 2008 MacBook which after starting displays a white screen grey apple and spinning wheel Have reset pram Have tried starting holding option when the hard drive appears on screen I click on it and then the up arrow below it this takes me back to the spinning wheel with apple screen I don't have the original CDs that came with the machine
Info:
MacBook (13-inch Early 2008)
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Mar 7, 2009
Ever since the last QT update 7.6, my AVIs are so pixelated to the point where it's no use for me to edit them in FCP. They're more like thick white blocks that completely distort the image. I have both Perian and Flip4Mac up to date. I'm also using MPEG Streamclip to convert to a more friendly h.264 clip.
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Feb 4, 2010
My friend said that PC's were better than Mac for gaming. He said that PC's had more CPU power, more and better video cards and better RAM. Is it true what he said about PC's being better than Mac for gaming?
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Apr 16, 2009
Heres The Specs For The Mac Mini:
2.0GHz Intel Core 2 Duo
1GB 1066MHz DDR3 SDRAM - 1x1GB
120GB Serial ATA Drive
SuperDrive 8x (DVD-R DL/DVD-RW/CD-RW)
User's Guide (English)
+A 500GB External HDD
-I am basically just gonna use it for music (iTunes). Lots of music. I would like it to run smooth and fast. I am not going to use the Mini for stuff like Vid editing or real heavy stuff. Just iTunes. Is it good enough?
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Nov 13, 2009
Maybe this is going to sound silly but do I have to worry about this thing being too heavy for my glass-top Office Max desk? It's 30.5 lbs, twice as heavy as the Dell widescreen monitor I currently use. This is my first all-in-one so it's all new to me!
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Jun 12, 2012
My IMac PowerPC G5 is rebooting itself. I have tried resetting PRAM, to no avail. What should I try next?
Info:
PowerMac G5, Mac OS X (10.4.11)
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