IBook G4 1ghz 14" logic board change

I have a 14" iBook with the 1197mhz cpu. The logic board is bad and I have been looking into a replacement. My question is, will the 14" ibook 1.33ghz board work in here? They look identical but I just want to know if anyone has tried this or knows for sure if it would work.
Thanks!

Most people are not, but there are a lot of people who are indeed 'tech savy" and they generally know who they are. There is nothing magic about the construction and assembly of the ibook. It is just a bunch of components assembled in a particular way.
I have had many computers apart and I never wear a grounded wrist strap and have never had one fail. The potential for doing harm is real but it is grossly overstated unless you have a careless approach in your work. There is no need for a strap if you know what you are doing, and that means understanding what potential your body is at, your tools, and the equipment you are working on, and how to keep them all at the same level as they change.
The logic boards in question may very well be interchangeable. For instance, there were three different speeds of the Powerbook 3400 which all had interchangeable mother boards. In fact, they interchanged with the first G3 Powerbook which used an entirely different processor.
If you have competency in these matters (and you know if you do or not) don't let the nay sayers discourage you. The rewards for fixing something yourself far surpass the feelings you get from buying something.
This forum is not really a good place to ask the question about whether a logic board will fit. Rather, try the ibook mailing list. It is made up of people who tend to fix things for themselves.
http://listserver.themacintoshguy.com/mailman/listinfo/ibook

Similar Messages

Trackpad problem after logic board change

So, I had the fourth logic board change... My ibook is out of warranty, but apple fixed it without any hassle. But now, after only a few hours of use the trackpad has frozen, and won't work at all, even after all disc repairs and PMU resets I can think of. My question is if this could all be because of something not getting quite connected after the logic board surgery? Just so I know how to argue that I deserve another free repair!
ibook g3, imac Mac OS X (10.4.8)

The trackpad cable is connected to the logic board. If the repair place hadn't got it connected, it wouldn't have worked at all after you got it back. It's possible that it could have been connected improperly or jiggled loose during shipping back to you. You could call Apple and tell them the circumstances, and they may agree to a repair.
If not, Michael Baker has described how he reconnected his trackpad cable here:
http://discussions.apple.com/thread.jspa?messageID=1034519&#1034519
Good luck.

TS4088 why is there a limit on 3 years? it should be all the MacBook Pro mid 2010 with symptoms, there should get their logic board changed for free, mine mac is 3 month late and i had this problem for over a year, but i first saw this article today :(

it should be all the MacBook Pro mid 2010 with symptoms, there should get their logic board changed for free, mine mac is 3 month late and i had this problem for over a year, but i first saw this article today

Hey Clintonfrombirmingham
I called Apple technical support in Denmark, but with no positive reply.
She couldn't do anything, and said that They had sent a recall Email about the problem and with their offer to repair the Macbook Pro, but I'd never recieved an Email about the problem. She wasn't in power to make an exception. It can't be true that i paid a lot of money, for a product that can't barely stand on its own feets, Apple didn't tell me that the product I was about to buy, would restart every 5 minute. and now when they know the problem, they wont repair it? it just don't make sense for me. If a car seller discovers that all the brakes in a car he had sold, will crash after some years he will call all the cars back to repair no mater what. i just don't understand how Apple will make good service for their custumers, by extending the warranty from 2 to 3 years, but wont take the computers there is a little bit to old, 4 months will make the difference. i can't believe it.
What can i do now?
best regards Oskar

I recently had my logic board changed on my Mac Book pro. Now I have more than 5 computers authorized fo iTunes. How do I de-authorize a computer I do not have access too?

I recently had my logic board changed on my Mac Book pro. Now I have more than 5 computers authorized to iTunes. How do I de-authorize a computer I do not have access too?

If you have reached the limit of 5, then deauthorize all and authorize the active computers:
About iTunes Store authorization and deauthorization

Firewall blocks DHCP after Logic Board Change

I had my computer in repair and they changed the logic board. Since then "Set access to specific services" setting misbehaves and blocks DHCP configuration.
After the repair it asked me to allow incoming connections for configd. I denied because I did not know it.
Problem: configd is not listed in Preferences so it cannot be unblocked!!!
How can I completely reset the rules table and start over?
Firewall[41]: Deny configd data in from 10.37.129.1:67 uid = 0 proto=17
Firewall[41]: Deny mDNSResponder data in from 169.254.203.40:5353 uid = 0 proto=17

I give up. This is a horrible issue. Now, the Firewall blocks internet access to configd and mDNSResponder after wakeup from suspend despite being on the "Allow all incoming" list of the System Preferences panel.
The firewall has become useless.
Jul 17 14:22:13 garfield2 Firewall[42]: Deny configd data in from 10.37.129.1:67 uid = 0 proto=17
Jul 17 14:22:15 garfield2 Firewall[42]: Deny configd data in from 10.211.55.1:67 uid = 0 proto=17
Jul 17 14:22:22 garfield2 Firewall[42]: Deny configd data in from 10.37.129.1:67 uid = 0 proto=17
Jul 17 14:22:24 garfield2 Firewall[42]: Deny configd data in from 10.211.55.1:67 uid = 0 proto=17
Jul 17 14:22:30 garfield2 Firewall[42]: Deny configd data in from 10.37.129.1:67 uid = 0 proto=17
Jul 20 09:18:58 garfield2 Firewall[42]: Deny mDNSResponder data in from fe80::21b:63ff:fe9b:37d4:5353 uid = 0 proto=17
Jul 20 09:18:58 garfield2 Firewall[42]: Deny mDNSResponder data in from fe80::21c:42ff:fe00:0:5353 uid = 0 proto=17
Jul 20 09:18:58 garfield2 Firewall[42]: Deny mDNSResponder data in from fe80::21c:42ff:fe00:1:5353 uid = 0 proto=17
Jul 20 09:18:58 garfield2 Firewall[42]: Deny mDNSResponder data in from fe80::21b:63ff:fe9b:37d4:5353 uid = 0 proto=17

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.

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 replace a logic board?

So my brother-in-law has a 4 year old iBook G3, and the logic board has gone. It will cost $400 to replace at the local shop; if I can find one for like $150 (which I think I can) is it something that could be replaced easily?

Justin and captainbarred, my advice is to send it to DT & T Computer Services in Fremont, California. They charge $225 (plus shipping both ways) to do the repair.
Installing the logic board is a tricky and difficult procedure. If mine goes out again, it's going to DT & T, I believe.

Logic board replacement - do I do it or not?

Hi,
The Logic Board of my iBook G4 14" 1.2 ghz recently died and is going to cost me almost £600 to make right!!!
No I didn't buy Applecare. Call me stupid but I expected Apple machines to be a cut above bog-standard PC machines and assumed it'd last me a while.
If I'd have known these issues before I made my purchase then I'd never have bought the machine - it's 2 years old for god's sake.
I digress.................
I've seen the posts on this board - multiple board replacements seem to be the norm, although by the looks of things the older ibooks seem to suffer the worst from this.
My question is should I expect another board failiure? The service centre is offering me a 3 month warranty on the replacement parts. If my ibook goes down after that with the same problem then I'd be seriously annoyed that I just didn't buy a new MacBook instead. I see I could get hold of their lowest-spec machine for a few hundred pounds more.
What do you guys think?
iBook Mac OS X (10.4.7) iBook G4 1.2ghz 14"

I've seen the posts on this board - multiple board replacements seem to be the norm, although by the looks of things the older ibooks seem to suffer the worst from this.
You'll have to keep in mind that this is a technical support forum specifically for people who are having problems. The topics here do NOT reflect the experience of the vast majority of iBook owners. Apple regularly sold 250,00 iBooks each quarter, so if "multiple board replacements" were the norm, there would be thousands upon thousands of posts here about an issue like that.
Apple did recognize a manufacturing defect in the G3 Dual USB iBooks and created a logic board replacement program for those that failed due to that specific defect. But, it was only for those that did fail and not all of them failed.
Without knowing more about your need and use for your iBook, it will be difficult for us to determine the risk you face by paying for a replacement. There is currently a refurbished iBook 12" 1.33GHz /512DDR /40GB /Combo for £524.25 right now at the UK's "Special Deals" Web site. This computer would have the full Apple warranty and could take an AppleCare Protection Plan as well.
-doug

Where would I find a replacement logic board?

I'm hoping not to use eBay for it. My son's ibook just had the logic board/USB port die and he is beyond beside himself.

Hi, and welcome to Apple Discussions.
DT & T Computer Services in Fremont, California offers the cheapest repair I've found. Their repair is usually less expensive than buying a logic board and installing it yourself. They have a six-month warranty on the repair.
Good luck with it.

Replacinga Logic Board

Hi,
I have a iBook 12" G4 800MHz with a broken logic board (the screen just rolls) can I replace it with a logic board from a 12" G4 1.2Ghz?
Thanks,
Paul

Welcome to Apple Discussions!
The fact there is one page for all 12" iBook G4s here:
http://www.ifixit.com/Guide/Mac/iBook-G4-12-Inch/Logic-Board/83/21/
Suggests it may actually be the same. Contact that website to verify this is the case, or read the instructions and see if they cover all of them.
Edit: My main concern though is that heating circulation may be different between models inside. I'd also ask them about that.
Message was edited by: a brody

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.

IBook G4 has to be tilted 90º backwards to boot - is it HDD or Logic Board?

I have a client's G4 iBook 12" 1GHz - that has to be tilted a full 90º for it to start-up/boot ...
The machine hangs on the grey start-up screen when positioned on a desk normally and won't boot - it chimes, display the grey screen - but i f I turn and rest it back on the screen - with the Apple Logo resting on my desk and the iBook positioned vertically - straight up - it works ...
It's hard to get a feeling for this fault ... obviously, something is loose or disengaged. It's almost like a sudden-motion sensor error - like with the G4 Powerbooks - but I don't recall the iBook G4's having them ... I can't really tell if it's the logic board - or the HDD ... - does anyone know - exactly what this issue is ?
The screen doesn't dip in & out when it's moved - like the terrible 'logic board' video issue that plagued the G3 iBooks ... this machine works fine - but only when it's resting on the back of its display ...
I have exhaustingly searched the posts for key words - such as 'tilt' - '90º' - 'grey/gray screen' - 'backwards' - 'turn' etc ... and have found quite a few posts with the same problem - but none with an absolute diagnosis ... and most posts are from last year ...
I know it needs repairing by a Mac genius - I just need to know what we're in for - a new HDD, or a new board ... - or maybe it's something loose that just needs to be repositioned or adjusted ???
I have also re-seated the ram module - and tested with & without. 'fsck' came back fine - DiskWarrior has updated the volumes etc - The PRAM & PMU have all been reset - everything ...
PS - thankfully - whilst in the 90º angle - I have targeted it to another drive and done a full back up.
Any ideas are welcomed ...

the last iBooks had the sudden motion sensor but the 1Ghz model did not so this is most likely the hard drive

Replace 1.2GHz iBook G4 14" Logic Board with 1.42GHz?

Hi everybody!
I have an almost 2 years old iBook G4 14" 1.2GHz. Or better said - had. The logic board died some weeks ago.
My main point here is to find out if I can replace the faulty Logic Board with something faster, i.e. 1.33 or 1.42 GHz. I have heard some rummours that the cooling systems are a bit different and I am affraid that a faster Logic Board won't fit.
Any suggestions? I would appreciate all comments on the topic.
I also wonder if anybody else has seen the same Logic Board problem. Strangely enough, it shows the symptoms of a dead fan, even though the cooling system is passive, i.e. whe the computer is cool it may even boot the system and let me log in, while when it's already warm, it dies in the middle of the startup.
If I boot the machine in target disk mode, it may run for days. Sometimes though, it may show some video problems: after being operational for some time, the FireWire symbol may freeze. I've noticed, that if I bend the bottom of the iBook a bit the symbol may start going again. Sometimes the display may go completely black. If, in that case, I bend the bottom a bit, a strange video-check-like sequence starts, i.e. going through black, white, red, green, blue and some patterns. At the end of the sequence the FireWire image may be restored.
I have checked all detachable components, i.e. extra RAM and AirPort and I am sure that they work perfectly. It is also worth noting, that the laptop may work several days in single user mode.
Thanks in advance for all comments!
Ventzi

Well, that's exactly what I thought first, but we are talking about an iBook here. That meens, that the 'video card' is actually only a chip soldered on the logic board and the fan turns on only when the computer has reached around 65-70°C.
And I cannot say that it boots OS X...
If the laptop is cold, i.e. has been off for a while, it may boot as far as the login screen. If I then log in, it will halt while still loading the menus.
If the laptop is already warm, e.g. booting it for a second time, it won't even get to the login screen. Usually it halts right after changing the grey screen to a blue one.
And this is NOT a software problem – I experience the same behaviour when booting from the installation DVD.
Interestingly engough, though, the laptop can run for days without any problems if started in single user mode (the text interface) or in target disk mode...
I've taken it all apart and I am certain, that the preriferal devices work.
About the AHT. If the computer is cold, the Extended AHT will pass without any problems. I the computer is warm, on the other hand, AHT will either not load at all, or will halt at some point without any error message...
Thanks for the help!
I hope that we can resolve this issue.

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)

IBook G4 1ghz 14" logic board change

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