13 Inch Macbook Pro Keeps Forcing Restart
Jun 23, 2012
My new 13 inch macbook pro keeps forcing restart. A black box appears and says it the computer must restart. Does anyone know why this is happening?
Info:
MacBook Pro (13-inch, Mid 2012), Mac OS X (10.7.4)
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Jun 20, 2012
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
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Feb 3, 2012
In the last few weeks my Macbook has started be begin freezing at seemingly random intervals. It is a 2008 Macbook, not a Macbook Pro or Macbook Air. At first this was only once a day, or once every other day, but it has gotten progressively worse. By today, I can't go more than 2 or 3 hours without it freezing, forcing me to manually restart the computer. The freezing is not application specific; once it freezes with one application, if I try to pull up anything on the menu bar, the menu bar proceeds to freeze. I haven't made any recent major changes to the computer, and it had been working perfectly fine before now. I'm working on scanning it in case it is a virus, but this is seeming increasingly unlikely.
Info:
MacBook, Mac OS X (10.5.8)
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Dec 5, 2009
Mac G5 ppc OSX10.4.11
Starting up from any boot disk will give me a kernel panic forcing me to hard restart.
Background:
After many freezes I ran disk utility and I get:
Checking Catalog file.
Invalid index key
The volume Macintosh HD needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
So I use my wife's Imac startup disk to boot it in order to repair but I get the dreadfull death screen (I know how to press the C) I'm thinking maybe it's because her disk if for her Intel proc so I go and buy a copy of disk warrior 4, and same problem.
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Mar 12, 2012
I bought my Macbook Pro in January of this year and had to get the hard drive replaced over the weekend. It has been working fine except every-time I want to access the internet (using Safari) from sleep mode it will not connect to the internet and I have to restart the computer. The wireless sgnal in the top right corner by the clock will show maximum strength, but refuses to go to any websites. Never happened before my hard drive crashed and it's getting annoying to have to restart the computer every time I want to go on the internet.
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.3)
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Nov 16, 2010
Battery
I had a 11 inch air 1.4GHz/4GB/128GB for two weeks. I usually set the brightness to 75% and for consistent web browsing (no heavy flash) I can get about 5h15min battery life. I noticed someone here claiming 8+ hours battery on 13 inch so I decided to give it a shot.
I got a new 13 air with 1.86GHz/4GB/128GB yesterday and start to run on battery immediately. I was disappointed. The brightness was also set to 75% and I start to count the time from 25% while browsing MacRumors.com. And it only took 1h38m for battery descending from 25% to 0%. Again, pure web browsing and no heavy flash.
So here is my conclusion: On 75% brightness, 11 inch air's battery performs beyond advertised 5 hours and 13 inch's battery performs fair and normally should give you around 6h30m~7h.
Noise
I don't have equipments for measuring the noise, but while copying the same 10GB files from external drive to the machine, the fan noise from 13 inch is much louder than 11 inch.
Now I like my 11 inch more in general, although I really hate the 1366 x 768 screen. I don't know if I should sell the 13 inch or 11inch...
[edit]:
On my 11 inch air: battery capacity 4664
On my 13 inch air: battery capacity 6634
[edit2]:
I will do another test to see how long exactly my 13 inch can last after a full charge
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Aug 30, 2014
Macbook Air was purchased in June. Worked fine the first few months, but has been freezing progressively more often, forcing a shut down. Cursor active but clicking does nothing. Today it has allowed not functionality and froze upon booting up. It isn't used much beyond checking email and surfing the internet. Also, is it true that MacBooks have a one year warranty?
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Nov 16, 2009
I've been testing this method for awhile to determine if it was possible to boot the x86_64 kernel on the Macbook Air via any process. It looks like it is. References here and here show it is possible to force boot the x86_64 kernel if you have a 64bit EFI firmware. To test your EFI firmware you can use the following: (Source).
Type the following into Terminal:
ioreg -l -p IODeviceTree | grep firmware-abi
If your Mac shows "firmware-abi" = EFI64 then you can proceed. If you see EFI32 then you're out of luck for this particular method.
The rest of the process is detailed at the links included above. I will rewrite this part when I have the method fully working, but for now I haven't been successful.
There are several relevant parts such as:
Quote:
Model (with 64-bit EFI) Byte Position in boot64.efi Old Value New Value
Mac mini(Eary 2009) 0�266DB 0�00 0�80
MacBook Air(Late 2008) 0�266FB 0�00 0�80
iMac(early 2008) 0�2671B 0�08 0�80
included in the comments at this page, but so far I'm stuck.
Update 1:
As an alternate method I attempted to use lipo to modify the mach_kernel to only contain the x86_64 kernel information. A reboot confirms this didn't work so well.
Interesting notes so far from the EFI modification tests:
1) bless --info works fine on 10.6.0, but gives a Can't access "efi-boot-device" NVRAM variable on 10.6.2.
2) You can still modify which efi file is used for boot in 10.6.2 (I fouled one up in a hex editor and rebooted to see if it would fail just to test it), but the bless binary will not show the information the system is configured with.
3) The information at both links above for modifying the boot.efi doesn't seem to work in 10.6.0. It already wasn't working in 10.6.2, but there were some comments about it working in previous versions of Snow Leopard so I went back to an unpatched vanilla install from my install media (used Disk Utility to format the drive before installation) to test it.
Thread Notes:
1) Yes, I am aware that Leopard and Snow Leopard are fully capable of running 64bit programs using the i386 kernel. This is just an experiment for fun.
2) No, I do not have any reason to do this and I know the Macbook Air runs fine with the i386 kernel including every feature of the x86_64 kernel.
3) Yes, I know the Macbook Air only contains 2GB of ram so there is no reason to run the x86_64 kernel.
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Jun 22, 2014
Forcing preview to see downloaded pdf's automatically. Safari downloads these but preview doesn't open it unless forced. My other MB air downloads them and automatically opens them in th media viewer of Safari.Â
MB air 11' OS 10.7
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Oct 21, 2010
To those contemplating on picking up the 11-inch MacBook Air or the 13-inch MacBook Air, I thought it would be helpful to list the differences between the two.
Below is what I've compiled so far (in no particular order):
1) SD Card Slot is on the 13" MacBook Air, not present on the 11"
2) Higher clock speed configurations on the 13" (1.4 GHz/1.6 GHz vs. 1.86 GHz/2.13 GHz)
3) 6MB of shared L2 Cache on the 13" vs. the 3MB on the 11"
4) 1066 MHz frontside bus on the 13" vs. the 800 MHz on the 11"
5) Larger capacity battery and an extra 2 hours of battery life on the 13" (7 hour 50-watt-hour battery on the 13" vs. 5 hour 35-watt-hour battery on the 11")
6) Slightly larger trackpad and more room for your palms while typing (hey, it's true!)
7) 16:10 1440 x 900 13.3" Display vs. 16:9 1366 x 768 11.6" Display
8) The 13" model weighs in at 2.9 pounds while the 11" weighs in at 2.3 pounds. .5 pound weight difference
If you have anymore differences between the two models, post below and I will add them to the list!
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Oct 7, 2009
I am trying to use my HD Sansui 32 inch LCD TV as a monitor for my Macbook. I can't work out how to set it up properly. My macbook is running OS X 10.5.8. My TV supports 1920 * 1080 HDMI 60Htz NTSC and various other resolutions. I am using a mini DVI to DVI adapter and then a HDMI lead to the tv. Problem one is that when I switch the Macbook on and close the lid nothing comes up on the TV screen (meaning it is supposed to only driving one screen, the TV). If I do this with the VGA connection it will. Momentarily the apple symbol will come up and the little circle below it but then my TV says signal not supported.
If I have the Macbook lid open when I switch the computer on both screens will work and I can select 1080P, however it is very grainy and not pleasant to read text. I think it looks better using the VGA. I have heard of people getting nice crisp display with HDMI so I am wondering if I am missing something? Is there any other software that can be used to get better results? Which text smoothing settings should I use? Are there other settings? I am using it on my desk so I guess it is about 2 foot from me. I will post my display details in a minute but my computer details are the following:
2.2 GHz Intel Core 2 Duo
1 GB 667 MHz DDR2 SdRam
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May 9, 2012
I'm getting one for school and i'm going to have to carrying it aroound quite a bit, so the 11-inch seemed appeling at first, but then i noticed that there is a few pros to the 13-inch than the 11 inch: There's an SD card slot on the 13 inch, which i could care less about, the screen has higher resoulotion, which i don't really care about eiether, but the one difference was that the 13 inch has two hours more battery life, which kinda got me thinking towards the 13-inch. So what do you guys think, is it impossible to work on the 11.6 inch and should i go for the 13 inch, or should i go with the ultra-portability of the 11-inch?
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Sep 12, 2009
Does anyone know if the panel used in Apples 24 inch Cinema display is the same as the 24 inch iMac?
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Jul 29, 2010
Hello everyone, I'm currently looking to buy a 27 inch imac and can't decide whether to get a base i3 27 inch or a refurbished i5 quad core 27 inch. With the i3 I can get the student discount and qualify for the ipod, but the i5 is 23% off right now. Which should I get? Also is there a benefit of getting a 5 series graphics card over a 4 series graphics card?
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Feb 2, 2010
I restarted my computer, and when it booted back up the clock was reset to Dec 31 2000. I did not change the clock, and my control settings are password locked.
Should I be concerned about this, and has this happened to anybody else?
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Sep 16, 2008
My mac will not sleep without my forcing it.
Have made sure the energy saving settings are ok but it will not sleep when it is supposed to.
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Apr 8, 2009
Is there a way to force full screen apps to run in a window?
(when the apps' settings don't have a "run in window" option)
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Jan 19, 2010
Do you guys recall when one of the advantages of Mac OS X over Windows was that it required fewer reboots after software updates and installs?
I recall it being one of the selling points in maybe a few of their commercials and advertisements, way back when, along with "quicker boot times".
It seems that -- nowadays -- I'm required to reboot OS X almost every time their is a software update for the OS or value-added software, while my Windows box seems like it goes months between required reboots after Microsoft software/OS updates.
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Nov 10, 2009
For the past month or so, I've started to have some really weird problems with my Mac Pro. Applications will suddenly stall out or freeze up (endless rainbow wheel), and Force Quit won't work to quit them. It happens most often with iTunes and Finder, but it's also happened with Firefox once or twice. The whole system doesn't freeze or stall - I can generally still use another application (i.e. if iTunes stalls and won't quit, I can still continue to use Firefox, etc.), but generally if I leave it this way too long another application with eventually freeze, forcing me to shut down by holding down the power button (Shut Down won't work in these cases).
Occasionally when this happens, I have left my computer alone, and sometimes it unfreezes or unstalls by itself, but this is usually hours later, and sometimes it doesn't do this even after hours of waiting. I ran a hardware test thinking that faulty RAM might be the issue, but the hardware test said everything was OK. I don't know if I should believe that or not. I've tried repairing permissions and verifying all disks, internal and external, and everything checked out OK. What is going on here? Why do things keep freezing/stalling and forcing reboots?
Here is what I've got:
2x2.8GHz Quad-Core Intel Xeon
2GB 800MHz DDR2 FB-DIMM
Running Mac OS X 10.5.8
I have really normal stuff installed - MS Office, Photoshop, Ableton, etc. No really weird third-party applications other than some really simple stuff. I'm not the type to overwhelm my computer with a bunch of crap.
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Jan 8, 2010
iPhoto, for example, takes about 30secs to open. If I'm using Safari and decide I want to upload a photo, opening iPhoto and then going back to Safari simply means that iPhoto will jump to the front with it's big, blank screen and spinning beachball five or six times. It's like fighting with my Mac. It's like I'm constantly clicking back to Safari and then a few seconds later my Mac will pop it to the front as if to say "You wanted iPhoto, so here's iPhoto - watch it open."
It's very annoying. Can I set something to allow applications to load in the background?
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May 18, 2010
this is driving me insane. On Tiger I was always able to select the default application to open a given file type, but I can't do this in SL. I want the XLD app to always open my .flac files. So, I click on a .flack file, select "get info" and select "Open with - XLD", and then I click CHANGE ALL. Fine. Next time, I just click "open" on a .flac and it's back to some other application being the default for opening the file, and not XLD! It keeps doing that, no matter how I keep trying to get XLD to be the default... what am I doing wrong, and what can I do to get it to work?
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Nov 13, 2009
I have a MACbook PRO, 2.6Ghz Intel Core Duo, 4GB SDRAM, with aproximately 4.38GB HD storage space left. Operating Sytem: MAC OS X version 10.5.8
My FINDER is behaving erratically - in that, when I create new folders (which I can do with the mouse and right button) it will not allow me to name the file, as if the computer would not recognise the keyboard. What is weird, is that I then click on a web browser, or any other application and I can type as usual.
I assume it is then a problem with FINDER - which after forcing to relaunch, works fine for a little while, but shortly, the problem comes up again
Having to relaunch finder every 5mins is not my idea of a smoothe operating system.
I'm trying to liberate more space - but it is proving difficult as my main tool in order to back up files is finder.
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Jan 11, 2010
Not sure if this is a Hotmail thing or a browser thing, but if someone attaches a jpeg to an email I recieve in Hotmail, when I click it in Firefox I get a dialogue box asking: What should Firefox do with this file? Open With [choose...] or Save file?In Safari, it just automatically downloads the picture to the default download location and then auto opens it with Preview.This is so annoying! How do I set my browsers to just open jpegs within the browser?
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Jul 15, 2008
I accidentally deleted my entire exchange calendar. I use entourage to manage my exchange account. I have a back-up of the main identity file from just before the delete. Great, right? Sure, except that when I swap out the current (without calendar data) main identity with the back-up main identity (with calendar data), the data populates the calendar, but then gets wiped when entourage syncs with the exchange server. Specifically, the data disappears when syncing is at the "Updating sync issues" stage (as noted in the lower right hand corner of entourage during sync).
Neither I or my IT girl can sort out how to force entourage to use the local calendar data instead of the blank server calendar data.
Any ideas?
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Nov 18, 2010
I got a MacBook Pro back in April, my first Mac.
I love it so much. I'm really into video editing and HD video, but the problem is that my MBP is running out of harddrive space, and I'm longing for a bigger display and a better processor. (I have the 13" C2D). I'm going to pick up an iMac this Spring. But I wanted to know if I should stick to the Core i3 21.5, or spend more and go for the 27 inch.
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Jun 9, 2010
Since installing Safari 5, everything seems to be slow. I have also 'lost' the "Glims" facility of forcing the completion of reluctant web-sites. Is it simply an impression, or is the new Safari slower? It seems to get so far with the address-bar and then think about it.
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Oct 15, 2008
My 12 inch powerbook does not start up. Instead it loads to Darwin. I have an install disk from a 15 inch powerbook G4 and I would like to know if using this would work on my 12 inch powerbook G4?
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Jun 22, 2012
when occurs a suspension of hard drive activity, manually or after a period of inactivity, this suspension seems to be incomplete (a ventilator continue to run) therefore my mac (power-mac G5, OS 10.4.11) is unable to restart, no possible action from the keyboard (I must shut down and restart)
Info:
PowerMac G5, Mac OS X (10.4.4), & PowerBook (10.3.9)
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Apr 14, 2009
Whenever I open my mac mini it comes up with the same message "You need to restart your computer hold down the power button or press restart" in four different languages.
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Oct 20, 2009
The new 27-inch iMac uses up to 365W vs 280W for the old 24-inch! (going by Apple's published max. power consumption numbers. I doubt they would lie because it isn't exactly favourable for them to put in falsely high numbers in an environmental report).
That means there's some extra beef behind the extra components. Perhaps the ATI 4670 is a bit overclocked and the 4850 runs a bit faster than the old iMacs? Admittedly that 2.8 GHz i7 is going to suck a fair bit of power - the recent 2.8 GHz i7 860 model runs at a 95W TDP, however, the quad core iMac isn't available until November. So it won't be using the i7 860, and my guess it is using another custom processor, something a bit more power efficient, somewhere in between the 55W TDP of the old iMacs and the 95W TDP of the i7 860.
The difference between the power consumption of the two computers is 85W. The old iMac had a 24-watt digital amplifier, this new one has two 17-watt amplifiers. That brings the delta down to 75W. Say the iMac's i7 processor has an 80W TDP. That now brings the delta down to 50W. The new display likely wouldn't increase power consumption because of the LED backlight.
I'm not sure if I'm missing much (OK, two extra RAM chips may use another few watts), but there is still a fairly massive 50W unaccounted for.
Just a bit of fat to chew on
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