Ibook g3 logic board horror history

Hi people,
I don't expect much of this post, I just want to let my history out so you would reconsider buying apple products in the future.
I'm a Mexico studend and got an ibook g3 almost three years ago (will be three years in january next year).
I really love the machine but I'm in my FIFTH logic board by now, and its starting to fail again with random lines in the screen (the same symptom again :-().
The first three times the logic board failed apple remplaced it free of charge under the logic board extension problem, every time taking like 3 or 4 weeks to do it (imagine 3 or 4 weeks without your machine and files :().
The four time I spoke to people in Apple Mexico and they didn't even wanted to replace the logic board, I was really ****** off but in the end they repaired the machine again free of charge, taking about two months in doing it.
Now the machine is failing again and I'll have to yield again on the phone to Apple México just to have the logic board fail in three or four months again when the extensions will have expired for me, and that if they even want to repair it again this time.
Everytime they asure me they are using apple original parts and that the logic board problem has been solved in the new boards, but yet and again the board fails again.
I'm really ****** off at Apple. Since I got the ibook I also got a Powerbook and iPod, but Apple would not see my money again, they make great products but they customer service *****.
Thanks for reading, it's good to let it out.
ibook g3 800mhz   Mac OS X (10.2.x)  

Hello, Juan Pablo. Welcome to Apple Discussions. (I think?)
This is a user-to-user forum, so nobody here can do much except offer advice.
You have violated the Terms of Use of Apple Discussions by, basically, only complaining, slamming Apple, and not asking for help, but I'm going to try to help you, anyway.
Have your iBook serial number and dates and details of past repairs at hand. Call Apple Public Relations in California at (408) 974-2042, and ask to speak to Customer Relations. Be prepared for a long wait on the phone, so don't get angrier about that.
Once you get Customer Relations on the line, explain to them that you have experienced the fifth logic board failure on your iBook and how long it has taken you to get it back each time it was sent away for repairs. Tell them you need a computer you can count on, and your iBook isn't getting the job done for you. Ask for a replacement computer. They have done this in the past in a few cases, and, in my opinion, your sad situation should qualify.
http://discussions.apple.com/thread.jspa?messageID=2308046&#2308046
http://discussions.apple.com/thread.jspa?messageID=2035294&#2035294
Keep the tone polite and disappointed, not angry, although I understand why you are. But the Customer Relations people, being only human, will respond better to a disappointed customer than an angry one.
To the other readers you are trying to warn, I say: this is not the usual case, and Apple cares about its customers. For every one person who posts here with problems, thousands of others are happily iBooking away with no problems whatsoever.
Even though you weren't really asking for help, I've tried to help you here. Please let us know how things go.

Similar Messages

  • IBook G4 logic board repair

    iBook G3 had a logicboard repair program
    http://www.apple.com/support/ibook/faq/
    Many iBook G4 purchasers have the same problem and "Apple accepts fault for defective iBooks in Denmark"
    http://www.appleinsider.com/articles/07/09/21/brieflyipod_estimates_top_10m_ibook_payout_korean_iphonetalks.html
    Can other customers expect any extention program for iBooks G4 bought since 2004?
    Thanks

    Well that chip in question is on the logic board.
    The steady deluge of complaints, and a subsequent investigation by the independent >lab Delta, led the Board to discover an easily repeatable flaw: a solder joint for >a mainboard chip would loosen with each press of the power button, invariably >causing a break in an important connection that would effectively kill the system
    This is not the only bad solder connection on these boards. U28 is another one that has problems for example.
    Richard

  • Ibook g4 logic board work around?

    Newbie here and have read several threads on this topic.
    I've got a ibook g4 late 2004 1.07ghz 14 inch display and it seems to have the logic board problem.
    I've been doing some tests and here's something i've discovered for some of you who may have or are expierencing this problem:
    1. i can only install os 10.4 via cd. i tried 10.2, 9.2 and it won't boot off the cd. oddly enough, i tried this because i wanted to see if the fan would kick in or can be set to kick in earlier then the settings on os x 10.4. why? see # 3.
    2. I tried the typical hard drive format, disk utility check and ram / airport card removal same problem. I did this to eleminate a hardware malfunction on one of these devices.
    3. i started the ibook while it was completely stationary and powered it on with the battery. here's the catch...i set the power to "battery performance" and set the cpu to "reduced" in the option feature. Why? my theory is the heat from the logicboard gets to the point where the cpu or gpu move up and thus we get the typical freezing of the screen, lines on the screen, etc.
    My findings were as I suspected. after setting the screen display to low lighting, cpu to reduced speed and running on best battery performance, i was able to use the ibook from 100% battery all the way down to 0%. This was using the ibook on the web strictly. When i ac powered it up and tried used several applications...boom....went to freeze.
    At this point..the unit is noticeably warm. Keeps freezing. forget it. I wait for 6 hours then boot off the battery again. Take a guess...with the lowest performance settings i got to use the ibook up to 0% battery life.
    Now, the big ? is if there is an application to reduce the cpu speed and set the fan settings to kick in earlier then what os x has preset for would be a great test to try. Also, a cooling pad for under the ibook or some method to keep it from getting to the trigger heat point is another option.
    Any have any ideas on the last 2 options?

    Hi guys,
    I have an ibookG4 1GHz with the approx 15 months until logic board becomes sick with the usual symptoms... (freezes, no boots, boots to screen w/ vertical colored lines, etc.)
    I also took the beast apart and confirmed that the logic board was "touchy" by just touching it on the "top" side near the hard drive (where left hand would lay on the computer if you were using it). So, I tried taping a piece of corrugated cardboard between the bottom case and the metal shield. The symptoms actually got worse/___sbsstatic___/migration-images/migration-img-not-avail.png
    Then I happened to read about the 2 mm playing card trick and tried it... son um a gun, it's been working fine now for hours/___sbsstatic___/migration-images/migration-img-not-avail.png/___sbsstatic ___/migration-images/migration-img-not-avail.png/___sbsstatic___/migration-image s/migration-img-not-avail.png/___sbsstatic___/migration-images/migration-img-not -avail.png
    The lesson seems to be that too thick is not good, a few playing cards seems to be just right/___sbsstatic___/migration-images/migration-img-not-avail.png
    Also, I have another possible theory as too the origin of the problem....
    I know that those little rubber feet seem to come off very easily. On my machine, I have lost all the feet EXCEPT the one on the battery. This situation would always cause the base of the laptop to be CONCAVE. Notice that the pressure that is applied by the "2 mm worth of cards trick" would then be counteracting the concaveness. In fact, anytime there is only a single rubber foot, or, only two feet that are next to each other (not diagonal), the base of the ibook will be forced concave.
    Having three feet will cause CONVEXITY (possibly slight dipping down of the corner without the foot). Two feet diagonal to each other should also cause convexity (opposite corners should dip downward)
    My predictions: people who have the logic board problem have only one rubber foot, or two feet that are not diagonal.
    Hey, I'm a scientist, I always have theories/___sbsstatic___/migration-images/migration-img-not-avail.png/___sbssta tic___/migration-images/migration-img-not-avail.png
    Good luck guys,
    Dean
    PS. Let me know how wrong my theory is...
    ibook G4   Mac OS X (10.4.6)  

  • Retrieving info off ibook with dead logic board

    our ibook's logic board died, so we bought a new macbook. now we are trying to retrieve stuff off the harddrive of the ibook with firewire.
    i followed the steps to use target disk mode, but the ibook starts up with a blue screen and a floating firewire symbol, and nothing shows up on the macbook at all.
    the repair guy said nothing was wrong with the hard drive, so why can't i access it?
    please help!

    jayson,
    The C clamp method works for some units because of an open circuit short on the logic board isolated at the video card chip in the lower left hand corner of the unit, about dead center 1.25 inch approx. away from the left/bottom edge of the iBook. By appling pressure to that area the chip is forced back down into the logic board, closing the circuit, and enabling the computer to startup, use the display and not go into kernal panic from a open circuit short. As far as getting data off of the HD, the local tech claimed my HD was erased and there was nothing viewable on it. I took it home, applied some pressure with my my hand and viola all my data, user account etc like nothing had happened...its sad but I am sitting next to my old computer clamped to the table with some cardboard shims for protection. Guess its a desktop now until I get it fixed!

  • How many times did you change the logic board?

    Hello everybody,
    I"m the formerly proud owner of an iBook G3. Solowly I"m getting tired of the logic board problem. I have AppleCare, but by now I"m sending my iBook twice a year for repair!
    By now I had my iBook sent to Care 5 times due to the logic board problem.
    Now I"d like to know if this is average, low or high ranking on the G3 exchange scale,
    Who can beat 5?
    Michael

    Michael,
    Mine has been back three times.
    If your iBook's logic board goes out again, I recommend that you call Apple and, instead of talking to Customer Support, immediately ask for Customer Relations. Be prepared with dates and details of your iBook's repair history, tell them you need a computer that is dependable, and your iBook just isn't. Then ask for a replacement. It has been known to happen.
    Good luck.

  • New logic board, and new display, but now completely dead.

    Hi guys,
    I've got an iBook G3, running 10.3.9.
    In December 2006, the logic board failed, so I bought a MacBook, because I didn't have time to be offline waiting weeks for Apple to replace the iBook's logic board.
    After much badgering, Apple reluctantly replaced the iBook's logic board under the extended warranty program.
    While the iBook was with the Apple repair store, they replaced the display for new as well, even though I didn't ask them to, and even though I wasn't charged for it.
    I presume that was because the store discovered that the display was duff enough to be replaced under another extended warranty program.
    When I got the "repaired" unit home, with a brand new logic board, and a brand new display, I turned it on, and it seemed to be working fine, so I turned it off, and continued to use my MacBook.
    A few weeks ago, the second logic board on my MacBook failed (another long horror story entirely), so I began using the iBook for the first time since it had been "repaired" some six months earlier.
    Almost immediately, the iBook began exhibiting a major problem, specifically that I'd be typing away, and suddenly the display would go black.
    I could just about see the icons and documents on the screen, but the unit was unusable.
    So I pulled restarts, full shutdowns, disk utility, zapped the PRAM, etc, all to no avail.
    It seemed to be an intermittent problem.
    For example, sometimes, from a cold start, the unit would work for two or three hours until the display went black.
    Other times, I'd pull a cold start, and it would go straight to the black display.
    By chance, I discovered that if I gave the iBook a shake, the display would come back on.
    But then it would go black after a second or two.
    And then with another shake, it would come back on for a second or two.
    And then it would go black after a second or two.
    And then with another shake, it would come back on, sometimes for a couple of hours at a time.
    So I figured that it must be a cable which, during the installation of the logic board, and/or the new display, wasn't seated correctly by the technician.
    I phoned Apple, and told them about it.
    They said that because I had reported the issue beyond 90 days since the logic board had been replaced, it was no longer Apple's problem.
    I explained to Apple that I hadn't used the iBook for six months, because I had a MacBook.
    After much badgering, Apple has agreed to replace the logic board if it's faulty.
    However, Apple has refused to replace the NEW display, even if that's also faulty.
    Apple is also insisting that I have to pay all the labor charges.
    Meanwhile, I've noticed that the iBook is now incredibly hot.
    I mean, the MacBook is infamous for running hot, but this "repaired" iBook makes my MacBook feel like a block of ice by comparison.
    I don't remember the iBook running so extremely hot before the "repair."
    Which has made me notice that during the last few weeks, I've never heard the iBook's fan come on.
    I presume that an iBook has a fan ?
    Please confirm.
    Therefore, another loose cable ?
    Today, the display went black again, as usual.
    So I gave the iBook a shake.
    But this time, nothing happened.
    No display.
    No fan.
    No hard drive spinning.
    Just silent and dead.
    What do you reckon, guys ?
    Duff logic board ?
    And/or duff display ?
    And/or duff fan ?
    And/or duff cabling by the technician ?
    As far as I'm concerned, I don't see why I should have to pay for yet another repair, to correct hardware and/or workmanship which was so bad that after only three weeks of ACTUAL use since the "repair", the unit is now completely dead.
    All opinions and advice gratefully received.
    With thanks and best wishes,
    Michael
    London, England

    Hi S,
    Many thanks for your helpful and swift response.
    I agree with you regarding the likelihood that these problems would have surfaced immediately during normal usage, regardless of how much or little time had passed since the repair.
    As advised, I will inform Apple Customer Relations UK about the new developments.
    Indeed, when I resubmit the iBook, I'll include a print-out of this discussion.
    I agree with you about the fan.
    Prior to the failure of the first logic board, I ran that iBook for YEARS, without noticing any heat issue.
    Indeed, if there had been such incredible heat, then I'd have searched these discussion boards, and reported it to Apple HQ.
    Therefore, the astonishing heat is definitely a new development since the "repair."
    Consequently, I take on board your comments about the lack of a working fan since the "repair", which I shall also mention to Apple HQ.
    As for running the Apple Hardware Test, the unit is completely dead.
    The power cable is green, but the unit is now completely silent and black.
    I also note your suggestions regarding the cable which connects the display to the rest of the unit, which I shall also mention to Apple HQ.
    No repair sheet was ever given to me by the Apple Repair Centre (ARC).
    Indeed, no receipt was ever given to me when I delivered the unit to the ARC, nor was any paperwork ever given to me when I collected the unit from the ARC.
    However, Apple HQ can see on their screen that the logic board and display were both replaced for new by the ARC.
    What else was and wasn't done by the ARC is a mystery.
    I'll phone the ARC and ask for copies of any and all paperwork, so that I can submit it all to Apple HQ, which I note is your recommended option, rather than returning the unit to the ARC.
    However, the complicating factor is that with the exception of the logic board, it is my understanding that Apple is denying any liability on any part of the "repaired" unit, including the brand new display.
    If I understand Apple HQ correctly, they're now saying that all other hardware and labor costs will be mine.
    I'm sure I could buy a WORKING second-hand iBook G3 for the same price as a repair, if not cheaper.
    Therefore, perhaps I should return the unit to the ARC, and give them the opportunity to correct their previous workmanship, at their OWN cost.
    Because as far as I'm concerned, the ARC had two customers during the repair: Apple and the end-user, as evidenced by the fact that the ARC has invoiced its first customer Apple for workmanship which was clearly not up to Apple's own standards, and the ARC has then delivered the unit to its second customer, the end-user.
    In addition, regardless of Apple's 90 day warranty on repaired hardware, UK law includes the Sale of Goods Act 1979, and other relevant legislation: http://www.dti.gov.uk/consumers/fact-sheets/page38311.html
    Furthermore, if the ARC is completely unhelpful, I could jump all over them, by writing to Apple HQ, with cc's to the UK editions of MacWorld, MacFormat, and MacUser magazines.
    As advised, if the unit goes to Apple HQ, I will suggest that the unit is looked at carefully during disassembly, to see if errors were made during the ARC "repair."
    I'm always polite when on the phone to Apple, because I love the company so much.
    Indeed, even though during the last twelve months, I've been having very bad luck with the iBook, as well as with a MacBook which has exhibited so many problems that Apple has now agreed to replace old for new, I still love my Mac.
    And joy, sweet joy, I've just seen on the TNT courier's tracker website, that my replacement MacBook, built by Apple in Singapore, then flown to Arnhem in Germany, then flown to Northampton UK, then delivered to Heathrow UK, left the Heathrow depot 30 minutes ago, for delivery to the customer.
    And the sun is shining.
    Thank you again for all your kind and wise advice.
    With best wishes,
    Michael
    London, England

  • IMPORTANT LOGIC BOARD INFO

    Hey everyone, I just wanted to post my experiences with the iBook G3 logic board issue. I purchased a used 12" iBook G3 800mhz about a year ago. I thought I had read well enough into the logic board repair program and purposely bought an iBook that had already been through it, in fact recently enough to have most of the 90 day warranty left. Not long after I found myself having the same logic board issues I was trying to avoid. Between the two owners the iBook received 5 logic board replacements, as well as a new hard drive, 2 new reed switch assemblies, a power adapter -- this thing was a pain.
    On the 5th logic board replacement the Mac Genius I was talking with told me something I had never heard before; he informed me that when they service the computer they replace the logic board with a different used logic board, which has yet to experience a failure, but has probably not been repaired of the defect. It seems like many of us have gone through replacement after replacement until we get lucky and find a board that has actually been fixed or didn't experience this defect in the first place.
    When I got the iBook back with it's 6th logic board I found out the repair service Apple used had closed the case improperly and jammed the optical drive. I did what many have suggested and called Apple Corporate, asking for Customer Relations, and simply stated "I'm calling to pursue a replacement." Apple replaced the iBook with an off-the-shelf, current model iBook G4. As far as I can tell, I got exactly what I would have if I had ordered the iBook from the Apple Store, but for free.
    By no means am I here to badmouth Apple. Although I have been through many unfortunate inconveniences, the customer service department has always been great to me. Even being in and out of warranties, I only spent a total of $20 on the repairs. This replacement was far more than I could ever have asked for, didn't cost me a cent, and has more than rectified the situation in my opinion. Their immaculate customer service is one of the biggest reasons why I stick by Apple and will continue to recommend them to friends and family.
    If you're having problems, be persistent but don't be aggressive. Contrary to the "official" word, Apple will do repairs outside of warranty at the discretion of a Genius, even a replacement.

    Thanks for posting your experience, Matt.
    Only Apple knows what criteria qualify you for a replacement. Some people are successful; some are not.
    Multiple repairs seem to be a qualifier. The more repairs an iBook (and its owner) has suffered through, the more likely a replacement will be offered.
    It doesn't hurt to be polite; it doesn't help to be angry.
    It usually takes a Customer Relations representative to help you; Customer Service can't do it.
    I am over 250 miles from an Apple Store, so no Genius is going to be helping me. Strictly phone and mail service. I have heard of a Genius giving a replacement, but only on one occasion. I think it must take a store manager to have that kind of authority.
    Congratulations on your new iBook G4!

  • Upgrading from 10.2 to 10.3 w/ history of logic board failure

    Please forgive if this has already been asked but...
    I have an IBook G3 that has had 2 logic board failures in the last 2 years. Is it worth upgrading to 10.3 (Panther) w/ my history? I cannot upgrade most applications ( Itunes, Safari, AOL...) b/c I'm not running 10.3. I don't have the money to upgrade but need access to these things.
    thankx

    You can just install 10.5, assuming the machine supports it. It needs to be fast (> 1Ghz) and have at least 2 GB RAM. Otherwise, you'll be spending a lot more time at your mother's.
    Don't attempt an "upgrade" of 10.2. Back up the data, then reformat the drive, then install Leopard. Don't run any migration utility. Set everything up fresh. Reinstall updated versions of all software that will run on Leopard. The only thing you want to copy from the old machine are documents.

  • Can I buy a new Logic Board for an iBook G3 700 12"?

    The Logic Board in my iBook G3 700 12" just died. My local reseller says it doesn't qualify for the replacement program.
    Anyone know where can I get a NEW Logic Board for my iBook?
    I don't like the thought of buying a used on on eBay and having the same problem 6 months from now.
    Thanks!
    Awfers

    Hi, and welcome to Apple Discussions.
    Yes, but the best place I know actually installs it for less money than they charge you for buying one outright:
    http://www.dttservice.com/ibookg3.html#ibookrepair
    They offer a six-month warranty, which is better than most places (including Apple's own 90-day warranty on repairs).

  • Should I repair an Ibook logic board

    I can have a 12 inch ibook 1.2ghz if I pay to repair it. It was just 14 months old, had been treated with great respect, when the logic board failed. Needless to say its owner had not purchased any extended warranty. Its owner purchased a new macbook and put the ibook in a drawer because he decided it was not worth the repair. I would use this ibook to replace my old Powerbook 3400c that died finally. I see on the forums that logic board failure is a problem with ibooks and that many people replace one only to have it fail. My question is whether it is worth replacing this ibook logic board? Is there a generic problem with the reliability of these logic boards, so that subsequent failure is a hit or miss thing? Or does their failure result from other factors so that an ibook that has one logic board fail may have an underlying cause that will lead to subsequent failures? Is this computer worth saving?

    I see on the forums that logic board failure is a problem with ibooks and that many people replace one only to have it fail.Although there have been some failures the absolute majority of iBook G4 users have not had any type of logic board failure.
    Is there a generic problem with the reliability of these logic boards...
    No
    Is this computer worth saving?
    You will need to look at the cost of replacing the logic board versus buying a new/refurbished iBook G4 or new MacBook.

  • Will a 14" iBook Logic board fit inside a 12" iBook?

    I've seen pictures of the logic boards on various retailer sites, and want to upgrade my 1.0GHz 12" to as fast as possible. I was thinking about the 1.33 GHz 12" but if the 1.42GHz 14" fits then that would be pretty sweet... does anybody have any insight on this?

    "I really don't think it's worth the bother....just get a 12" one."
    Whether or not it is "worth the bother" is soley a matter of what you consider a bother. To some, and I suspect this of the OP, it is very rewarding to do repairs and modifications, and particularliry mods that have not been done before. I say kudos to the OP for trying. It may be cheaper to buy a used 1.33GHz ibook but doing his proposed mod, whether he is successful or not, will make him a little better off than the "can't do's".
    In fact, on this forum all I ever read is "have it looked at" or "send it to Apple" or "it is not user replaceable" etc. Nobody here ever seems to entertain the concept of actually doing something for him/herself.

  • Can I use a 12" logic board in a 14" iBook?

    Hello,
    Here's what could be a stupid question - but I'm going to ask it anyway!
    Will a logic board from a 12" 800 Mhz G3 white iBook fit into (and work in) a 14" 800 Mhz G3 white iBook?

    I would say that it won't work, based on the fact that macrecycling.com lists logic boards specifically for the 14-inch model:
    http://mac.macrecycling.com/logic-board-800mhz-ibook-g3-14-p-100172.html
    If they are interchangeable, it would seem that their listings would reflect that fact.

  • Has anyone ever installed a G4 logic board into a G3 iBook?

    I was just wondering if it was at all possible to install a G4 logic board in a G3 iBook. To be specific, I have an iBook G3 900MHz with a faulty logic board. I could have it replaced under the Apple Logic Board Replacement Program, but I'd hate to replace a bad part with a part that will most likely go bad in the future. Also, trying to find an affordable (in the $100 range) replacement logic board on eBay or anywhere else is proving impossible.
    So, could I buy a 1GHz or similar G4 logic board and swap it into the G3 iBook? I'm sure someone out there has tried something like this, right?
    I'm intrigued by the possability.

    I doubt it. They don't even take the same kind of RAM.
    What makes you think a replacement "will most likely go bad in the future"? Some have had to go back more than once; many haven't. (And many have not gone in at all.) There are many iBook users out there, happily iBooking away without any knowledge of the iBook Logic Board Repair Extension Program because they've never had a problem.
    Get it replaced, free, NOW, and worry about the future when it gets here.
    http://www.apple.com/support/ibook/faq/
    P.S. When you make an error in a post, there is a little edit-pencil icon next to the "Reply" icon in your post. The edit pencil stays there for about 15 minutes to allow you to edit your post. Just click on it, and it takes you back to your message box so you can edit it to your heart's content.

  • What Logic Board fits an iBook G3 900 mhz?

    Hi!
    I have an iBook G3 12" 900mhz with a bad logic board. I'm planning to replace it. Can I fit all kinds of dual USB iBook Logic Boards in there?
    Cheers!

    What are the symptoms?
    You may know that enough Dual USB G3 iBooks suffered from the logic board problem that Apple began the iBook Logic Board Repair Extension Program in January of 2004. Check out the FAQ page and if the symptoms look familiar, give Apple a call. If the iBook qualifies, it's a free fix.
    You can find the original purchase date of the iBook, by entering its serial number into the box toward the bottom right of Apple's main support page under "About Your Support Coverage."
    If it is past the three-year time limit (which it probably is), try calling Apple and ask for Customer Relations (NOT Customer Service--they can't help you) and ask them to please make an exception to the three-year limit in your case.
    If the answer from Apple is absolutely, positively, "NO!" and the symptoms are those of the classic logic board failure described on the FAQ page, you may want to consider trying the shim fix suggested by John Sawyer in the Apple Discussions iBook G3 (Dual USB) Displays Forum:
    [Y]ou can often fix this yourself by removing the iBook's bottom housing, and placing a shim of any sort, about 1mm to 1.5mm thick, onto the raised square on the bottom shield. I use a Scotch mounting square--you can get them in hardware stores and many grocery stores. When you reinstall the bottom case, it will press against this shim, which will press against the graphics chip, and may allow the chip to come into better contact with the logic board.
    John Sawyer
    CJS Macintosh Repair
    Instructions for removing the lower case:
    iFixit.com
    Good luck.

  • Can I use a 16VRAM logic board in my failed 8VRAM G3 ibook 600mhz?

    Hi, my logic board has failed in my G3 ibook 600mhz, I have just managed to find a replacement board for it which has a 16VRAM in it. I have checked the box on my ibook & it says it is 8VRAM. Will the logiv board still be ok to fit/work etc?

    That post is rather misleading.
    The 8 MB logic boards probably fail less often than the 32 MB ones, from what I've seen here.
    The 16 MB logic board failures may not be seen quite as often because there were comparatively few of them produced. Apple produced many more 8 MB and 32 MB iBooks than 16 MB ones, so it stands to reason that we would not see as many reports here of 16 MB logic board failures as we do failures in the other models.
    The poster in the post cited did not say he actually installed the logic board he purchased, although that is certainly the assumption one would tend to make from the statement.

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