Intel Imac with bad logic board.

The logic board on my 20" Intel Imac failed(according to the diagnosis form the tech at the Apple Store) and will require a $900+ dollar repair....a tad bit high considering it's age, the cost of the machine in late 2006 and the going prices of the new Imacs! Anyone know of a lower priced repair option or a way to salvage the machine, or is it now a very large paperweight?

I know that I apparently should've gotten Apple Care, but I've never had such a catastrophic Mac failure in the 12 years I've been dealing with the machines. Judging by the lines/wait for service at the Apple store maybe it's a good idea next time...although with all the problems the new machines seem to be having it seems a bit like extortion and maybe they should just raise the prices and include it.

intel imac 20", core 2 duo

Posted on May 10, 2008 11:15 AM

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390 replies

Feb 9, 2010 9:35 PM in response to markrut

I bought my 20" Intel Core Duo iMac in May in 2006. I paid a high price for it, $3300.00 with applecare? extended warranty, Microsoft Office for Mac, 1Gb RAM and the Elgato Eye DTT TV. I was expecting easily 8 years or so hassle free use out of it, before I would be ready to upgrade it and then give to my nieces to use for their high schooling.

I got 2 years and 7 months.

One day I unplugged to move it to another room and it would not turn on again. I left it unplugged for hours and eventually it did turn back on. Since that day it has been turning itself off randomly and not turning back on until it is left rested, unplugged, for hours.

The reason I agreed to buy an apple computer with such a high price point was because I believed they made good quality, long lasting products.

It was diagnosed with a 'failing' logic board, with no explanation or reason why, and was told I would have to pay another $1064.00AUD to replace it. Why apple thought I would give them any more money after selling me a 'failing', short lived product defied my sense of sense. I made many long phone calls and letters, and after a few months ! I finally got them to agree to replace my logic board.

Two days after the replacement my iMac would not turn on again, after it was shut down correctly through the apple menu, until it was left unplugged. Then it turned itself off after using it for ten short minutes. This was two days after the two week 'repair'. It is currently back in the shop. In total, it has been with Mac1 for more then a month now. Since September 2009 it has been primarily back in it's box, save for the 26th and 27th of December when it shut itself of 8 times in two days, giving ten or so minute windows to retrieve my data to an external HDD. I have spent more then $300.00 on mobile phone call charges. I have had to pack it up, drive into town, and pay parking several times to get it to the Mac1 service centre. I have spent hours writing letters, and had a lot of negative emotional responses about my iMac and it's 'failings', being left sleepless, despairing, anxious and angry.

I am afraid I have very little faith that I will get what I expected out of my iMac. I don't have faith that it can be repaired and that it will last. I would never have paid such a great sum of money if I knew I would only get 3 years out of it, or even 5. I am not one to buy the newest or fastest and shiniest. I saved for more then a year and a half to buy a computer that would last me at least 8 years, though being an 'apple' I was actually expecting it to last much longer then that. I am using a G4 'Sunflower' now, (which my friend generously lent to me and upgraded to Tiger 10.4.11), it is over ten years old and has only had the HDD replaced, with a cheap spare one. I would be totally without a computer if it was not for the loan.

I refute people who say that people who did not buy appleCare? deserve any less then those who did. Even though I paid money for the extended warranty, it was not because I thought I would ever need it for repair, I bought it for the help desk. We all have paid a premium price for a what we thought was a premium, quality, built to last product. I believe the price we paid should have been a guarantee in itself.

I am very disappointed with apple, not because they have 'humanly' built a 'failing' product, but by the way they have treated their once loyal and adoring customers.






The lower case a for apple is intentional, as are the mid sentence ? marks after appleCare!

Feb 11, 2010 8:18 AM in response to BucksCountyBob

I have a early 2008 iMac, and in one week, two power supplies have went bad, it is in repair at the Apple store for its 3rd power supply. My Next computer will be a Mac Pro Clone with retail boards, GPU's, CPU's and other Drives, including the Blu Ray Apple pulled at the last second from their Late 2009 27" iMacs. The reason behind that was because the ATi Radeon 256Mb GPU cannot push a full screen 27" dispay at 1080i quality. Thats from ATi. A 512MB GPU is needed, but Apple dropped the ball on it. Of course I will be using Snow Leopard with Ubuntu 64bit as a dual boot system. I may even throw a copy of MS Xtra Pathetic on it for the out of date game companies that wont do Mac Releases on new games.

Message was edited by: PaganEgyptian

Feb 12, 2010 12:43 PM in response to PaganEgyptian

You know, I've been wanting a mac desktop for the longest time, but I've been reading all this stuff, with many people saying that, "most of the computers are problem free" ? So, clearly there are 2 sides to this, just based on what you read here at this user forum.

However, the ONE thing that has made me more wary than anything else is just observing, just how many refurbished models there are for sale! There are a lot of iMacs on there, all the time! There are a lot of macs on there that are older models from late 2007. Why? I just have to wonder why there are so many failed ones, that have been repaired and are for sale on there. There are a lot of newer laptops and everything else on there, and it just makes you wonder why there are so many. Obviously some were mistreated or just dropped or whatever, but I find that most people treat their computers pretty decently, and that most failures are unrelated to simple mistreatment.

Apr 2, 2010 3:45 PM in response to Garth Algar (way)

I have a early 2008 iMac 24 inch and I just had the Logic Board and Hard Drive replaced. I took it into my closest Apple Store(hour drive from my house) and I'm glad I bought the Apple Care Plan. I had no idea I would be using it this soon since I bought my iMac in February of 2009. I asked the tech at Apple if this was a common problem and he said not really. . . . .after reading this post and other's I see now he was lying! Anyways just wanted to add my name to the list of people with failed Logic Boards. Its really sad when you pay so much for Apple products expecting to get a great product, just to have it fail a year later. . .or sooner! Kinda reminds me of Toyota. . . .did I say that out loud??

May 26, 2010 2:24 PM in response to bobsled

Same thing here the computer is not dead yet but might as well be. It has all the signs of the logic board taking a dive and horizontal lines on the screen, crashing without recovering. Apple is known for their "Sorry you aren't covered" policy. Sadly never buy a mac without the warranty, or get extended. You never regret it if it dies.

May 26, 2010 4:30 PM in response to markrut

I'm throwing my name in the hat. My 2008 20-inch intel iMac started acting up over the last 4 weeks. Freezing with horizontal white and gray lines to the point where I have to reboot it with the power button. I ran the diagnostics test and got a 4MOT code. Which according to an authorized repair shop means - check fan motors. Action procedure: replace fan, if issue not resolved, replace logic board. Ooops!! Went and bought an external hard drive and got Time Machine running quick, fast, and in a hurry. I promise you this, if my iMac goes out and needs a new logic board, there is NO WAY I'm repairing it. I will be spending the $900 to buy a new i7 core HP. By the way, I have an HP laptop I bought in 2003 which still works just fine, other than the DVD player which died last year.

May 28, 2010 3:35 AM in response to ibardac

Partial Redemption! I went back to the Genius Bar, sigh, to get them to remove a library dvd. I patiently explained that, not two months ago, they had replaced the screen at no charge due to a known problem with vertical pin-striping.
The Genius clearly thought that their workmanship was implied.
It almost makes all that standing around for late appointments worth while.
OK, so there are still some reliability issues with the imac IMHO, but Apple have now handled it pretty well for me.

May 28, 2010 4:20 PM in response to markrut

On a somewhat related topic, if my iMac does die, will I be able to access my backups created with Time Machine from a Windows PC? I understand I won't be able to do a full restore, but will I be able to at least go in and pick and choose the files I want? I'm asking because the formating is different when writing data, but how about when reading?? Thanks.

May 31, 2010 6:36 AM in response to Demitri_I

I am in Italy. I bought an iMac ALU (early 2008) on June 29, 2008. Practically brand new. From the Apple store. And since the previous iMac (G5) had its graphics card fail on me after two years and the warranty had expired the year before, I also purchased an AppleCare warranty extension plan, which proved to be the best 250 euros I spent in my whole life, because:

1. One week after purchase, I had to send the iMac to Apple's national repair center because it overheated. The repair center returned it saying everything was normal and that ACTUALLY, it was normal for the iMac to become as hot as a ventilated oven.

2. Exactly one year after purchase, June 29, 2009, the hard drive failed. Fortunately, I had backed up most of my important documents on an external hard drive but I had some important work to complete, so I had to purchase a portable PC (and it was not an Apple product, I had already grown diffident). Apple sent me a tech onsite to replace the hard drive after about ten days and quite a few angry calls.

3. On May 11, 2010, the graphics card failed suddenly. It took Apple 9 days to send me a tech with a replacement card and I made a couple more angry calls in the process.

4. Last week, one week after the replacement of the graphics card, the motherboard failed. I was contacted by the national repair center within the same day of placing A FURIOUS call to Apple, with the promise of a prompt repair of both the motherboard and the graphics card that fried along with it or a replacement of the whole product. Actually, they were surprised I had not asked for a total replacement already. Of course, it is Monday today and I got no confirmation of any visit by a tech.

And the irony is: none of the software tools allowing me to check for hardware errors reported anything ever.

During the weekend I bought a Dell PC. Apple has lost a customer for good.

Apple hardware has ups and downs. It is clear that the iMac of 2008 is like the Performas of 1994. The worst example of fraud I have ever seen in my whole life as a computer user. At least Performas were only very slow.

Jun 5, 2010 7:05 PM in response to markrut

Here is another Imac with a bad graphics card. The issue began while under warranty, but they merely replaced the power supply, not finding graphics problem described that later resurfaced. Since then I've pretty much gotten by with a box fan and SMC Fan control keeping the computer extremely cool, but this is starting to fail. I think the problem is partially my fault, as I did not realize how hot it was getting in Windows, as that the fan was not kicking on with high temps.
My main gripe is that the GPU is supposedly soldered onto the logic board. Why is this done? Also there is no way to hook up the screen, the reason I bought the computer, to an actual working computer. I feel stupid for having an an all-in-one unit that feels like it was intentionally made unserviceable.
I like apple and have had good experience with them, but I'd really like to know why it was engineered in this manor. Intentionally disposable Ipods is one thing, disposable Imac's is another. I have 90% of a great computer with the other 10% ruining the whole!

Enough venting. Please make your own post if you are reading this. Thanks to those who have already posted! I also recommend buying a squaretrade warranty (look for extra coupon codes online) as they helped expose similar problems with Xbox's. I'm guessing only a small subset of imac users really push their graphics card, unlike Xbox users however. Still third party warranties are really the best hope for keeping companies honest.

System specs:
Processor 065-6791 2.16GHz Intel Core 2 Duo
Memory 065-6474 2GB 667 DDR2 SDRAM - 2x1GB
Graphics Memory 065-6801 NVIDIA GEFORCE 7600 GT w/256
Hard Drive 065-6438 250GB Serial ATA Drive
Optical Drive 065-6439 SuperDrive 8X (DVDR-DL/CD-RW)
Modem 065-6448 None

Jun 7, 2010 9:28 AM in response to markrut

And this hasn't become a class action lawsuit yet HOWW???

I read about this problem when i purchased my 24" iMac in May 2008 (the particular version had just come out) and was quite scared that one day I may fall victim to these shenanigans... Whaddayaknow, not even 2 years of operating and BOOM! Headshot!@! Playing a game last night and visual / graphical distortions, vertical artifact lines, etc... had to reboot after this. Basically after this initial crash I would have to reboot, and it would boot fine to the desktop, but open and graphically demanding program (firefox, even!) and Zzzzzz.

Now, Apple I was extremely frustrated with you when my battery on my 2005 Macbook Pro failed THREE times, but each time you ensured me "I'm terribly sorry about this inconvenience and we are aware that this is a common hardware failure in this generation of notebook and we have established a repair program just for it." GREAT, now by my standards it just makes a little sense to me if you would do something about a similar problem we have which is:

A. Driving dozens and dozens of consumers onto the internet to ***** about your service and your incompetence at properly engineering a computer.
B. Costing the faithful consumers who are willing to stick with a Mac repairs of upwards of $950, are you f*cking kidding me?!?!

Jul 10, 2010 1:41 PM in response to markrut

I have been having the same problem for while. It began with horizontal lines/scratches, odd color smudges (mostly pink)and sometimes the graphics would stretch. The exact symptons described throughout this and other threads. I had used smcFan to put off the inevitable but over the last month the freezes got worse and worse. Still had movement of my mouse, but no interaction with the screen. Now I get 5 in minutes from start up if I'm lucky.

The main reason I'm posting is not only to echo the list of symptoms, but share a 1/2 solution that I found is working for me. For some reason, if I boot in SAFE mode by holding the shift key, my iMac works fine. I'm typing on it right now. It's been on for hours with no hint of beach balls or lockups.

Granted this is no long term solution since safe mode means many things won't work. But I wonder that if safe mode is fixing it, and safe mode is supposed to disable potential SOFTWARE conflicts, what is it thats safe mode is preventing from running? Any specifcs? Could this be software related?

Jul 10, 2010 8:15 PM in response to Erik Hornung

For some reason, if I boot in SAFE mode by holding the shift key, my iMac works fine.

I think that is working because it disables hardware acceleration / use of the GPU. There are a couple tricks you can pull that will effectively disable the GPU, forget particulars right now but one is done by telling the system there is no/zero VRAM.
Many (all?) graphics related things will suffer in this mode (e.g. video, gaming).

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Intel Imac with bad logic board.

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