MacBook Air :: Overheating - One Core Shutting Down?
Jul 28, 2008
I'v just noticed, after installing iStat menus, two different CPU usage measurement graphs. Core 2 duo, so apparently one for each core or chipset, whatever . But the weird thing is, that sometimes, while watching movies, burning dvd etc. (sample "high usage" situation), when the CPU temp. goes around 60 celc. and fan spins at 6200 rpm, one of the "core graphs" shows nothing, like the core is shutting down (screen attached). It's annoying, because the whole system slows down, I can't do anything, and after like 5 mins it gets back to normal (after closing for example the movie). Any solution for this or should I just get used to it?
over the past few weeks my blackbook has been shutting down more and more frequently from what I can only believe is overheating. I just checked my computer upon startup with SMC fan control - it starts up at about 70 C and at about 3500 RPM. Yet, after a few minutes, the fan immediately drops down to 1100 RPM or and fluctuates between 800-1400. I try to force the fans to spin with SMC Fan control, but nothing happens. I've looked all over the web and I can't find anything definitive. I know that macbooks tend to overheat. What can I do?
i can't watch videos online like the daily show with john stewart. the fans start going full blast-- up to 6000 rpm-- my main CPU goes up to 120 degrees. then the computer shuts down. any idea why it does this? happens when i work in photoshop sometimes too.
My Macbook is 1.5 years old (13in, white, 2 GHz). About two weeks ago, it would randomly shut off. It would restart fine, but shut off sooner. Sometimes, it wouldn't even restart. Now, it's at the point where when I power it on, it rarely restarts past the white apple start-up screen.
My thought is that it is overheating. Are there any more ideas? What can I do to save my macbook?
Over the past few weeks my blackbook has been shutting down more and more frequently from what I can only believe is overheating. I just checked my computer upon startup with SMC fan control - it starts up at about 70 C and at about 3500 RPM. Yet, after a few minutes, the fan immediately drops down to 1100 RPM or and fluctuates between 800-1400. I try to force the fans to spin with SMC Fan control, but nothing happens. I've looked all over the web and I can't find anything definitive. I know that macbooks tend to overheat. What can I do? I'm at college and I really need to find a fix for this as soon as possible.
My Macbook's been overheating and shutting itself down the past two days, usually when on YouTube. Having installed the Fan Control system preference, I can see the fans aren't running at all. My first thought is that they might be broken, but this happened for a little while last year, too, and the fans started working again after a while. Also, it's been miserably hot in my area the past week, and I wonder if that's contributed to it, too (even though the laptop's in an air-conditioned room). Anyway, should I wait and see if the fans begin working again, take it to a repair shop (warranty's expired, so I'm not keen on that), or maybe buy a cooler pad?
I've got an early 2005 model Power Mac G5. Bought it from a hospital and it's really clean inside. Lately it's been shutting down spontaneously without warning. I thought it might be an issue with overheating, but I'm not that familiar with normal heat levels for a CPU. I installed iStat nano and checked the temperatures. I took a screen shot of the widget. Temperatures are in Fahrenheit. Can anyone tell me if I'm on the right track? What do I need to do to solve this problem?
Power Mac G5 (early 2005) PowerPC G5 Dual 2.3GHz 2 GB DDR SDRAM Model Number:A1047
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.
I've googled to see if I can find a solution to this but not had any luck - wonder if you could help. My Mac Mini is 1.5Ghz PowerPc G4, 512Mb RAM, running Mac OS X Version 10.5.8. I bought it second hand a couple of years ago and in the past while it's really been playing up a bit. It first started overheating and shutting down when I was doing really resource intensive stuff - for example, opening a large amount of RAW image files. However, it's now started taking to shutting down when I'm doing normal browsing, using Spotify etc The machine also tends to hang a lot, and I can't really stream videos very well either. The vents at the back of the Mac definitely aren't blocked and there's plenty of space around the machine to let the air circulate.
Is there any way to tell when the new processors are in turbo mode and shutting a core down and increasing clock frequency?Would be cool if there was a way to force this and see performance differences...
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.
I have a MacBook which has recently been shutting down when it feels like :/ this all started a week or two ago (well not the shut downs but other issues that I'll get too), basically the fan I think has been knocked as it is bumping the top or something as the whirring is getting loud and it sounds like every now and again it hits something
Also CPU usage seems to be averaging out at 20% for Safari and 100% for HD Video where as it used to be very small amount for Safari and 30 - 40% for HD.
I see the numbers of everything from Core 2 Duo, to the slightly faster and cooler Core i3, to the supposedly faster core i5s and i7s. The benchmarks go up accordingly, but I found this does not always equate in a faster experience on most tasks.
Here's my experience so far on processor upgrade:
In one computer trade school re-certification class I am in, we are working with Windows Server 2003 on a Quad Xeon platform and it's incredibly slow.
But in a previous class we had the previous generation server edition on older Xeons, and while not fast, it was much better. On paper the newer multi-core Xeons should have made a difference, but could 2003 server software be that much more bloated than the previous Windows server edition that it would stall like that and make us wish we had the older setup?
I am going to try out the Adobe CS lab and put the new high end Dells to the test there and see if they work better than when we had an older CS version on older Xeon equipped Dells.
I don't know if this is something to do with Dell, or if Apple's increasing processor bumps/generations are going to similarly not make a difference in the speed things appear to go at, whether it's Adobe stuff, server stuff, or anything else that needs power.
I know somebody who plans on a Core 2 Duo, i5 or i7 MBP and I was wondering if the higher end processor is worth it in that case (iMovie being the main program of use).
There's a lot of people wondering if the 13" MBPs would have been a lot better with a Core i3 processor, but everything has been just hangups over perceived old vs. new technology, and really the only thing the Core i3 adds is Hyper-Threading, but it doesn't have Turbo Boost, which helps the Core i5/i7s tremendously. Let's compare using Geekbench since it is cross-platform and one of the few available sources of info...
Core 2 Duo P8600 2.4GHz (~3362)
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vs.
Core i3 330m 2.13GHz (~3472)
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Core 2 Duo P8800 2.66GHz (~3700)
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vs.
Core i3 350m 2.26GHz (~3680)
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As you can see in both cases, the difference is pretty minimal indeed, and in single threaded applications, the C2D will easily outdo the Core i3 which lacks Turbo Boost and runs at lower clock rates.
And you get a 320M instead of Intel HD graphics with the new 13".
The Geekbench results from the old 15/17" to the new 15/17" are quite an order of magnitude better.
So unless people are expecting Core i5 processors in the 13", sticking to the C2D was actually a good decision, and given the differences between 2.4 and 2.53 isn't so large, one is far better buying the base 13" and then putting the money saved towards a good 7.2k HDD or SSD.
Note - I took averages of the 32-bit numbers and added them.
Note 2 - The C2D Pxxxx are 25W TDP processors, which are more efficient than the Core i3 which are 35W TDP processors. Less heat, better battery life from C2Ds.
I've been debating whether or not to upgrade my 3 year old 15" Macbook Pro that has a 2.2Ghz Core 2 Duo (Santa Rosa) to the new 13" 2.4Ghz Macbook Pro. FYI... My current system also has 4GB of RAM. Since both systems are Core 2 Duo, what kind of speed bump am I going to see? Would this be a substantial upgrade?
I'm buying a new MacBookPro but can't decide, due to lack of knowledge, wich one to choose and if there's a noticeble difference between,  15.4" MacBook Pro Notebook Computer 2.2GHz Intel Core i7 Quad-Core4GB of DDR3 RAM500GB 5400rpm Hard DriveAMD Radeon HD 6750M 512MB Graphics15.4" LED-Backlit Glossy Display1400 x 900 Native ResolutionSlot-Loading SuperDrive802.11a/b/g/n Wi-Fi, Bluetooth 2.1+EDRFaceTime HD Camera, Built-in MicrophoneMac OS X 10.7 Lion (64-bit)Â
and the   13.3" MacBook Pro Notebook Computer 2.8GHz Intel Core i7 Dual-Core8GB of DDR3 RAM (2x4GB)750GB 5400rpm Hard DriveIntel HD 3000 Graphics13.3" Glossy Widescreen Display1280 x 800 Native ResolutionSuperDrive, Secure Digital Card SlotFaceTime HD Camera, Omnidirectional Mic802.11n Wi-Fi, Bluetooth 2.1+EDRMac OS X 10.7 LionÂ
Besides the screen size, one would be considerable faster?
I use Photoshop and beeing a photographer I deal with large files.
Info: MacBookPro 2.66GHz 4GB 1067MHz DDR3, Mac OS X (10.6.2)
The ivy bridge processors are coming out soon (or may already be out). I have heard that macbook pro 13" models might be able to use the new processers due to their lower energy useage. I presume that I will be able to take my mac to an apple store and have it installed. Is this information true?
Info: MacBook Pro (13-inch Early 2011), Mac OS X (10.7.4)
Although i'm hardly impressed by the prices and specs of these 'new' machines I need one so I'm buying!
Just need to know before I make the plunge. Is the i7 variant with the extra GPU ram really worth it? I would use the extra power in my work but I honestly need to know if I'd notice any difference as for a few seconds less waiting it would hardly justify the price.
I wanted to know if I can replace the upper case of a Core Duo white macbook with that of a Core 2 Duo black macbook? The white one has the distinctive yellowing of the rev A macbooks, so i'd like to make it better whilst making a black/white frankenMac.
Just curious as to how much of an improvement in performance I would see upgrading my system as it states above, since my 2006 machine is 3 years old and getting close to the end of my apple care, figured I would trade it in and upgrade.
I am looking to purchase my first Macbook Pro. I am having a difficult time deciding between a $1749 17" from Amazon that is the older 2.8Ghz Core 2 Duo and the $2298 17" (w/ student discount and tax... have to include tax) from Apple that is the newest model. The price difference is $549.
Some things I'm curious about:
1. Intel HD card? Does it really cause that much lag? How is it compared to the nVidia 9400m? I don't mean benchmarks, I mean real life performance.
2. Battery life? Is the battery life in the newest model much better than previous gen?
3. Heat? Is there a difference in heat production between them?
I don't care about gaming, so the 512 300m vs. 512 9600m is no concern.
Does the newest 17" justify the $549 price difference? Are there any other things that I should know between the two?
Has anyone that know if it's possible to upgrade MacPro Nehalem 2.26 to 2.66 Ghz Westmare with the following processors : Intel Hexa Core Xeon? Processor X5650 12M Cache, 2.66 GHz, 6.40 GT/s Intel? QPI part #:BX80614X5650 ? Could you help me telling if it?s possible to upgrading MacPro Nehalem octa core 2.26 Ghz to Mac Pro Westmare hexa core 2.66 Ghz ?
is it even possible to upgrade an old dual core powermac g5 to a quad core or even an 8 core.
I have a dual core one and i really need to upgrade to a quad or even 8 but it is so expensive to buy a whole brand new one and i was wondering if there was a way to just get a new processor and more ram or what not.
So the older Mac Pro's from 2008 have 2 2.8ghz Quad Core Intel Xeon processors, without hyperthreading, for a total of 8 cores, and the top of the line iMac has a Quar Core i7 2,8ghz with hyperthreading for a total of 8 (virtual) cores.
With the ghz being the same but less "real" cores, but probably newer CPU architecture, which CPU will actually be faster?
I know other threads exist, but they don't have responses specific to me so what's the harm in one more?
So, I am going to be selling my late 2008 15" MacBook Pro this week to get a new 27" iMac and I just need some legitimate advice from those "in the know" on processors.
I plan on having this iMac for about 3 years to do the following tasks:
1.) Record and edit HD cable (1080i) from an Elgato EyeTV HD - will include some encoding of 2+ hour sports game recordings
2.) Some light editing of 720p iPhone 4 clips in iMovie
3.) Surf the web, iTunes, iPhoto, Mail, and all the other standard stuff
Assuming budget is an issue, would you recommend me spending the extra money for a Quad Core i5 iMac or would I be ok based on the info above just going with the base Dual Core i3 model?
Like, will there be a considerable difference in the two machines (factoring in processor and graphics card) that will really be worth the extra $300 - $400 for 3 years of use?
