Possible Logic board probs

Hi All
A Friend of mine has a White Macbook 1.83GHZ and there is an issue is that it sometimes shuts itself down! Best guess from the Apple techs was that the logic board is toast but this was only a guess.
Could there be any other reasons as apple wanted nearly £400 to replace a new logic board.

Most likely cause IMO would be an overheating CPU. So, tell your friend to fish out the restore media that came with the system. Find the one that has something about Apple Hardware Test on it. Tell them to run that. The extended test. After letting the system sit for an hour or two to cool off. It might be that it's a simple case of a fan not performing up to spec, which would be considerably cheaper than a new logic board. It's also possible that the thermal grease needs to be reapplied to the CPU and GPU, but that's no small undertaking, so hope for the fan issue.
Seems like kind of a stretch to call those people techs when they're just tossing out some near catch-all component.

Similar Messages

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    I bought my MacBook pro in March 2008, 15 inch, and it is now out of apple care. 
    It freezes on start up on the white screen with the apple logo and the spinning thing.
    Did hardware test and got error code 4SNS/1/40000000: TC0D - 107.500
    Is this a logic board failure, or possibly something that could be fixed much easier and cheaper?
    Thank you for any help.

    whitdare4 wrote:
    Did hardware test and got error code 4SNS/1/40000000: TC0D - 107.500
    That error code is listed as a hard drive sensor error. It may mean that the temp sensor on the hard drive needs to be replaced, or the logic board might be at fault.
    It could also get caused from another fault peripheral device as the code describe generally a "connection fault".
    You should remove usb mouse or other usb devices and try to boot in safe mode to eject all attached drives proper.
    Lupunus

  • IBook G3 start-up issues, possible logic board failure?

    For the past few months the screen of my iBook G3 has been skipping and flashing and jumping at random times, quite often. If I move the screen to and fro it usually stops. I assumed this was just a bad connection with the LCD display and have basically ignored it.
    Today, however, my screen froze completely while I was running Safari. Even the finder was frozen so I had to turn off the iBook by holding down the power button. When I restarted, it went through the usual start-up motions but after the grey start-up screen, it went to a blank blue screen. Only the mouse's cursor showed up at this point and nothing else. I was not asked to log in. Nor could I see my desktop.
    I was just now browsing this board and found that the jumping screen issue I've been dealing with may have been logic board failure. Could this new blank blue screen problem also be a symptom of that? Or is it part of an overall hard drive failure?
    The computer is quite old. I bought it in early 2002 and there's only about 2GB of space left on it at this point. So is it possible that the hard drive has crapped out?
    I'm trying to restart right now in safe mode but it's been stuck at the grey start-up screen with rotating dial for about 40 minutes. Don't know what to do and I'm a little distraught at the idea of possibly having lost all of my files.
    Any advice is appreciated. Thank you very much.

    Hi, Christopher. Welcome to Apple Discussions.
    Try booting into Safe Mode. This will take quite awhile longer than a normal startup because it does a file check and repair of the hard disk.
    If this works you will see your normal desktop. Once completely started up in Safe Mode, try to restart normally, and go to Applications > Utilities > Disk Utility. Click on the top hard drive icon in the left sidebar and note the S.M.A.R.T. status at the bottom right of the pane. What does it say?
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    If Safe Mode doesn't work, you will need to try repairing the hard drive from your Tiger Install disc.
    Every time you have to do a forced shutdown instead of a normal one, there is a chance of hard drive damage and you should repair the hard drive, either by booting into Safe Mode OR by starting up from the Mac OS X Install Disc by inserting the disc and restarting your computer, holding down the C key as the startup chime is ending. Then click 'Next' at the language screen and choose Utilities > Disk Utility and select the hard drive in the left column. Choose the First Aid tab. Click Repair Disk to test and repair the hard drive.
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  • Query logic board prob - errors on installing Tiger

    Hello
    I'm trying to fix a friends G4 iBook 1.2GHz and have apparently made it worse.
    It was running on 10.3.9 and warning of the HD being full so I suggested installing more RAM and updating to 10.4.8
    I put in 512 mb of RAM and tried installing Tiger (from 10.4.6 Apple install disk - a generic one - not a specific to iBook version) and whatever I try it starts the instal and then stops "there were errors installing, please restart and try again"
    I pulled the extra RAM out thinking that may be the cause but got same error. I tried starting the iBook in target disk mode and installing Tiger from my old G4 PowerMac. Also tried zero'ing all data on the iBook. Everything I do gets the same message. I think the message is exactly as I have typed above - there's no error code or specific reason for failure to install. Needless to say, it wont boot from the failed instal version - it just gets a black screen.
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    Hi RichT353
    I my opinion you fell at the first hurdle. An overfull hard drive can cause all sorts of erratic behavior.
    Instead of adding RAM, the remedy would have been a larger Hard disk.
    Nevermind; you must try to restart it in a functioning Operating System, - if that's panther, that is OK, and then make some space on the disk, by dealing with excesive music, file, photos, videos, and other such personal documents.
    Boot from the Installer CD, holding down the C key and then after selecting the language, go up to the top menu bar, to run Disk Utility and selecting the Hard disk, choose
    Repair Disk.
    Then Repair Permissions.
    Exit disk utility, cancel the installation and restart normally.
    Once you have things back on an even keel, then think about upgrading the OS to Tiger.
    Of course adding the extra RAM will not hurt.
    good luck
    regards roam

  • 2006 Mac Pro corrupting the disk - possible logic board problem?

    Hi there.
    I bought a faulty MP (2006) that wouldn't install an OSX. It would install to a point and then fail or install fully then not boot. Apparently this happened shortly after a 10.5.8 update failed mid way. The seller told me how it seemed to corrupt hard disks placed into it. How he diagnosed this I don't know.
    I bought it and did a fresh 10.6 install on a formatted disk in my other 2006 mac pro. Then swapped the disk into the faulty mac pro. Everything seemed fine. Booted up and seemed to work fine.
    Upon trying to install itunes 9 I had all sorts of issues (which I've read about). Upon doing a disk check in disk utility it seems the disk has loads of errors, imcomplete nodes/trees etc. Repairing the disk isn't working (in the OS as well as booting from the DVD).
    Has anyone encountered anything like this? It seems the disk is getting corrupted by something or other. Hardware tests check out fine.
    Could this be a problem on the Logic board?
    Thanks

    One thing I did notice that I thought was odd was on the grey boot screen a small empty progress bar appears for a second or two and then vanishes. Sure this is the same progress bar that appears on an efi update etc.... not sure it's connected

  • IMac intel core 2 due possible logic board failure how much to repair? 3 beeps problem

    Hi guys,
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    Or if I had to buy new ram & or memory how much would that cost?

    Three beeps indicates a RAM problem.
    I would try cleaning the Ram slots with a little alcohol on a Q-tip to make sure that all the dust is gone. Then reinstall the RAM modules pressing real hard on each module with both thumbs to making sure that they are firmly seated in the slots.
    See > iMac: How to remove or install memory

  • PoweBook g4 won't start up possible logic board failure?

    My PB G4 867mh 10.3.9 has entered Hospice mode. Screen stays dark and 3 short beeps occur. Tried to reset the PMU (shift ctrl option start wait 5 sec then start) sometimes works. System profiler states that built in memory slot is empty. with only the 1 gig that I added years ago. from what I have read it appears that this is a logic board issue. After successful "jump start" computer won't wake from sleep- but I don't want to leave it running as it gets very hot.
    3 beeps= memory slot= logic board= S.O.L... right?
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    Jermsy:
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    For a more thorough testing of RAM try Rember-Memory Test. In addition, when you boot from the AHT disk, run the tests in a loop by holding down Command + L during the tests. It sometimes takes dozens of repetitions to detect intermittent errors.
    at one point little black boxes appeard with white text in them over the screen(reminded me of DOS--are these Kernals?)
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  • MBP will not turn on. Possible logic board failure again? How can I get recycle it?

    I have a 2007 model MacBook Pro. I have had the logic board replaced once already. Symptoms seem similar to what happened before.
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    You're Welcome. You might want to take the drive out as it is more then likely still good. You could use it as an external for backing up folders and files from your new Mac. You can also get your data off it by using a SATA to USB adapter or an Enclosure ( I like the Adapters better. More flexable).

  • Possible logic board failure?

    I have an late 2009 apple macbook pro. Mac os 10.9. I was watching a video and all the sudden the computer froze and shut itself down. When I booted it back up, the apple logo disappeared and was replaced by a circle with a cross (No hard drive present warning.) I booted up the computer with the install disk and ran disk utility and sure enough the hard drive was not visible.
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    samsamsam2579,
    perhaps your replacement internal SATA cable is just as faulty as your original internal SATA cable?

  • 2011 Macbook Air - Multiple logic board failures - possible causes?

    I have a 2011 i7 macbook air - 7 months old.  About a month ago I went to use the computer after allowing it to sleep and it was totally dead.  Apple authorized repair center said the logic board failed and needed to be replaced.  Fast forward a month and I finally get the machine back.  It works fine for 6 hours, I put it to sleep, and soon as the screen went out, I hear a pop, fizzle, then the machine is dead again.  The authorized repair center wants to replace the logic board again, which should get me up and running, but its not likley that that is the root CAUSE of the problem here, since it happened twice now.  I suggested to them that perhaps the power adaptor, battery, or some other component is the issue and they don't think so.  I'm located overseas, and every repair attempt takes 1 month b/c of parts (total joke if you're listening apple!!).  My biggest concern is that they replace the logic board again, I'm out of commission for 2 months now, and it just fails again.  Does anyone have any suggestions on the possible causes of this problem? 
    As FYI - I'm using the same power outlet and power strip with another laptop and haven't had any similar issues.  Thanks for the help!

    I have logic board problems too. I have had a late 2010 mac book air for 2 and half years. Its been a great machine in general - although it did go back within the warranty period for the track pad
    Now it has logic board failure - symptons are the sound going and  the battery is dead and it is unable to charge which means every time you put the power lead on the computer thinks it is starting from scratche.
    I have been quoted over £400 for the repair!  Like the above post I do not believe that this part should fail - and if it does then it is a major design problem and Apple should be doing something for us. I just dont know where to start.
    I have used macs for 14 years and owned eight along the way. Most have them have lasted many years with full functionality  the record was my G3 imac which was still working after 13 years.
    I really cant believe the situation I am in and rather think I have bought my last mac!
    alistair

  • My old MBP (2005) often crashes, freezes or shows grey screen at start up. Also track pad often does not work. I have re fomatted the HD and reinstalled system but to no avail. Genius bar says possible faulty HD, but suspect logic board, any ides any body

    My old 17" MBP (2005) often crashes, freezes or shows grey screen at start up. Also track pad often does not work. I have re fomatted the HD and reinstalled system but to no avail. Genius bar says possible faulty HD, but I suspect logic board. All checks out OK on the Apple Diagnostic bench. Can a Logic board go intermittant?? Any Ideas any body??

    Ive repaired 1000s of laptops over the years (translate: diagnose and replace parts).
    Its not that old, Ive owned 100s of laptops (most were free) ....some I still have are nearly 13 years old and still perfect, ....some extremely expensive ones died in under a year.
    other than becoming obsolete at some point, there isnt really any "will spoil on" data like Milk for solid state computer parts, ....alas.
    You can have a $5000 laptop die in 4 months, and a junker one keep kicking after 10 years.... Ive seen that firsthand countless times.
    Common logic dictates that "very expensive = long life" in computers,..... but all the repair people will tell you just the opposite.
    I know you have a gripe, I get that all too well honestly .

  • Logic Board Chipset for "macpro2,1" ? Possible Harpertown boot on it?

    Could someone please shed some light on what chipset does (macpro2,1) logic board version # 2 have? Has anyone had a successful Quad Harpertown boot on this logic board?

    I'm actually building a custom mac pro. I bought a version 2 logic board. Have everything else set in place. I would like to install Harpertowns, just iffy about it. Intel's site states 5000X chipset compatibility for the Harpertowns. Hmmmmmm... Do you have a "macpro2,1"? And if so and if possible, could you please confirm the chipset with CPU-Z? All help is very much appreciated. Thank you kindly.

  • Is it possible to upgrade iPhone by putting in a newer logic board?

    Hello,   
         I have had an iphone 3g for some time now and the speeds on the device are very slow compared to other phones. Is it possible to put in a 3Gs of 4 logicboard in my 3G to make it run faster or posssibly out a better camera in it?

    To purchase a working 3GS or 4 Logic Board will cost you more than buying a complete perfect iPhone 3GS or 4.
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  • (HELP) Dead MacBook Pro.. possibly something to do with the logic board.

    I had been noticing my MacBook Pro's performance degrading lately.. for example whenever I dragged a file into a folder it would lag for 5-6 seconds and then copy over. It started to bug me so I guessed that maybe a reinstall would fix the problem. After reinstalling and rebooting, I got no video on the display.. keyboard wouldn't work.. only things that happened was the disc drive made a sound, light came on the font and could hear the HDD spinning a little.
    I then took it to the Apple store as thats what Apple told me to do on the phone. So we took the loverly 3 hour drive(there and back) to the closest Apple store just to have the man take it out the back for 2-3 minutes and then come back to say "It's possibly the logic board that is dead".
    I am out of warranty by 2-3 months and so he told me I would have to pay £700 or so to repair. As a full-time student I don't have that kind of money.. I don't even have £60. - I find it annoying how they didn't even fully check the problem out.. just a "possibly the logic board".
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    I am a massive fan of Apple.. I love their products. I have brought so many products of theirs.. now just 2-3 months after my warranty runs out.. I get this. They didn't even say sorry for selling me a faulty product and didn't offer to help out in any way. When I spend £1,299 on something I expect it to last A LOT longer than a year and 3 months.
    I need my MacBook Pro very badly for College but now I can't do my work and if I want to do my work, I have to pay £700 for it.
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    I can't settle for anything less than a Mac. I love the OS way too much and need so many of the apps that are Mac-only. So no way am I going to forget this and buy myself some cheap PC CrapTop.
    - iTomath

    Unfortunately, if you cannot boot from the disc, it won't be possible to do any diagnostic tests yourself.
    It might be worth getting a second opinion. Is there an Apple authorized repair shop anywhere near you? If so, possibly you could take it there and see if they can diagnose it. You may need to pay a small fee for them to do this. But possibly someone might take a little more time with it and be able to give you a definitive diagnosis.
    I'm grasping at straws, but you might be able to try resetting the SMC:
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    I don't know if this would help or not--there are not many things to do when the computer is unresponsive and you can't use the keyboard or a disc.
    Unless the problem was reported to Apple while the MBP was still under warranty, I don't think there is any way that Apple would be able to fix it under warranty. Did you ever take it in for any problem under warranty that might relate to its current situation?
    I don't know if you might be up for trying to fix it yourself. If you are, here is a site that might be of help:
    http://www.ifixit.com/
    You have my sympathy--this has to be an exceedingly difficult situation for you. I will continue to think about this, and will post back if anything comes to mind.
    Good luck!

  • New Logic board? possibly repair?

    Recently some water was spilled on my macbook, damaging the high voltage. Apple quoted me a price that was out of this world, my local CompUsa quoted me a 650$ price, and dt&t repair quoted me 550$, im on my computer right now. It works fine, the back light just flickers on and off.
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    The Tech guy At compusa sad they Mark up prices by 20% so if i could find the part i could buy it myself.
    isn't there a cheaper way to get this one problem repaired?
    its not a 500$ problem. maybe a 200$ problem?
    (also could i possibly get a 2.2ghz logic board to stick into my macbook?)
    Message was edited by: Tyner100

    Check with your household insurance company. They may cover it.
    -Bmer
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