Classic AIO and Powering on w/ no logic board

What happens if I turn on any Classic AIO (Color Classic, LC 575, Power Mac 5200, etc) without a logic board?
I ask this because all above models have a rocker switch but yet it is software controlled (Power Key.)
Does it do anything or is on standby waiting for response from the logic board? Has anyone expiremented this?

This is what they wrote on my genius bar work authorization exactly:
Issue: Computer boots to the apple logo and spinning gear, but then freezes up completely and the fans blow continuously. Occasionally kernal panics. Steps to Reproduce: verified at bar. Attempted SMC and PRAM reset. Upon trying to run AHT, it would boot to open firmware and give an error for "Invalid Memory Address"
Proposed resolution: check in for ASD for $85. Ordering RAM
Cosmetic Conditon: normal wear
I paid for them to run disagnostics and they said they did but my apple store is pretty bad. They're always beyond busy and full 24/7 so there have no patience. When I call, there's at least 20 plus people ahead of me. Even with appt, wait was almost 2 hrs. They said 3-5 day turn around time. I called on day 5, nothing. Day 7, transfered to a genius who said "oh Randall took a look at it, did diagnostics and you need a new logic board. It's gonna be pricey though it's around $1100 and for $50 more you can get a new one." I said, "are you sure?!" He said, "Yeah, that's what Randall wrote." I should've asked more questions, I know, but I was in disbelief. Unfortuantely I had to pick it up with my boss who was in the biggest hurry of his life with every inch of the place so I had no opportunity to ask.
It does chime at boot up. I got a system failure message on the grey screen that said basically:
cpu=0
code=00009 (invalid pmap)
latest crash info for cpu 0: exception sate
BSD process name corresponding to current thread: kernal task
panic: we are hanging here
And then the fans run and it won't go any further. I've had the alert about the startup disk a couple times but I usually kept it with 15GB always free so I hadn't seen the alert in awhile.
Could not get a safe boot either. What do you think?

Similar Messages

My 2011 MacBook Pro does not start and stop after the apple appear, they said that the problem is a video problem and need to change the logic board. Cost almost same to buy a new one. Somebody have the same problem?

I have a MacBook Pro early 2011. Does not start. After the apple show, a blank screen appear. The service said that the problem is with the video plaquue in the logic board. Need to change. Cost lmmost the same than a new MacBook Pro. Somebody has the same problem? What we can do?

I hate to break this to you, but life isn't fair. If your job is that critically in need of a computer, then you should have a spare to use for just this kind of situation or have your employer provide you with a computer to use.
Computers break down, just like cars. If your car breaks down do you curse the car maker or get it fixed? Surely, you paid more for your car than the computer.
This is reality. Best get used to it because it won't get any better.

My computer crashed and I had a new logic board placed in it

Now I am trying without success to get my adobe apps downloaded to my repaired computer. I've tried downloading the Adobe Creative Cloud Desktop app, but I get a message in Japanese that a problem has arisen. What is the problem? And can I get an English version of Adobe support even though I live in Yokohama?
I have been a cloud member for over two years. Why am I now suddenly having problem downloading?

Hi
Did you use migrating tool or something in order to recover your data from broken computer to repaired one? It might have broken your licence information about Adobe apps.
You should use CC Cleaner Tool to get rid of broken information from your computer before installing. Please see the link below
Use the CC Cleaner Tool to solve installation problems | CC, CS3-CS6
In addition, to make sure of your successful installation, You'd better to delete all files and folders of Adobe apps manually. Please check out the page below to know where those are in your Mac.
Delete previously installed application files (Mac OS X)
I am sorry but we cannot provide you with English version of Adobe support in Japan.
Regards,

My logic board was replaced and now Logic is asking for my serial number again - I don't think I have my docs for Logic anymore, what can I do?

I've had my Logic Pro software for years now, and since I got my logic board replaced, Logic won't open without re-entering my serial number, which I don't think I have anymore! What do I do? Help is greatly appreciated!!

Please stop making multiple posts on the same subject.. This is the third thread you have created in a short space of time asking the same question.
Please read the answers given in this thread you posted...
https://discussions.apple.com/thread/5311324?tstart=0

Can I get new logic board without serial number? Machine was refurb and so serial on base is wrong

My MacBook is mid 2010 dual 2.4gz unibody white. I bought it refurbished from a company (not apple). It no longer turns on and showed no sign of degradation so I took it to the Genius Bar and they reckon its the logic board.
Problem is that the base on the laptop was replaced before I got it and so the serial number is not the right one and as it doesn't turn on, there is no way of finding it out.
I am wondering if it is going to be fixable?
Thanks in advance.

You need to have any repairs done by the vendor who sold it to you. Usually Apple will only deal with products purchased from them or an authorized reseller.
Motherboards are not "fixed." They are simply replaced.

Freezing, Panics, and a Logic Board error

Okay, I have a PowerMac G4 Gigabit Ethernet, and it's been crashing, giving me kernal panics, and today, toasted my main hard drive. It's running on:
1.2GHz Sonnet G4 upgrade
1.5GB Ram (2x256 and 2x512)
Radeon 9800 128MB
2x20GB hard drives RAID striped
18GB spare
combo drive
2x120GB external firewire drives
I can give more details if needed, but basically, if I watch TV resolution video with VLC media player it will crash after 25 minutes or so,if I run the iTunes visualizer for 15 mintues it will crash, if I play World of Warcraft for about 30 minutes it will crash, actually, if I run any graphically intensive game it crashes. Then today I ran the Apple update for the JSE (or whatever) and 10.4.6, then when I rebooted, it gave me a kernal panic, where the first line said something about not having the driver for "Powermac G4 3,3". Then I run Apple hardware test 1.0.1, I ran that 5 times, and the first time, I got the error "scc /3/7" every time after that I got "scc /1/5" all on the logic board, and it wouldn't test pass that. I do have the machine running but since I left my system disc at my parents', I'm booting it from another machine in target disk mode that has 10.3.9 (option-boot saved my butt, kinda). Last but not least, I cannot access my main drive (the 2x20GB RAID), and I'm hoping someone has a way to get to it, but every time I start, it tells me that I've connected a disk that is not recognized my Mac OS. If the drives are gone, I'll have to deal with it, but I can't have my machine freezing on me like this, and any help is much appreciated
Gigabit Ethernet Powermac G4 Mac OS X (10.3.9)

Well after 5 tests and every time having the logic board fail I am willing to bet that the logic board IS the probable cause.
What I would do is disconnect all the drives (minus the x2 20gig raid) and get the data off each one. If that other machine you are booting up in targeted disk mode has at least 1 open ATA66 slot free then you can simply change the jumper settings on each drive and get the data off. This will also give you a chance to test and verify each disk.
If the other Mac you are using targeted disk mode on is a laptop then you could go the slower rout of taking turns with making each drive the master drive on the internal ATA66 buss that your machine started with. That way each time you start up with targeted disk mode you can get the data off that drive.
Once all your data is off I would consider the cost for a replacement board (probably $3-500 is my guess) vs the cost of getting a new machine or simply a used newer machine (like a dual 1.2Ghz G4 or something allong those lines). The drives will work in the newer machine so there would be no costs in getting new drives compatible with the system. That is my thoughts.

New iMac G5 PSU/Logic Board Problems

Hi, I just got a new (old) iMac G5 for $30 and thought, "Well, even if it is broken, at least it comes with the new expensive keyboard/mouse" and so brought it home.
When I plugged it in and first powered it on, it went like normal; the fans started, the sleep light went on, then off, made the power sound, but it didn't power the screen and made a sound before everything but the fans went off. So I unplugged it and plugged it back in to see if it would do it again, but all it does now is make a quick high pitched sound then nothing.
I checked the capacitors and the LEDs on the logic board and they tell me it's the logic board (only LED 1 ever goes on), but the faint smell from the PSU and high pitched sound make me think it's the power supply.
What I want to know is which one is most likely broken, because my plan for the computer is to get it running as cheaply as possible and make it into a nice multipurpose family computer (and it still needs a HD and HD tray). If someone who had a broken logic board before tell me what it did when they tried to start up the computer, it would be helpful.
Anyways, thanks to all in advance, and I know I hight find a better iMac on eBay for the same price as the repairs, but it already saved me $70 for the keyboard and mouse, so I thought I might as well fix it up.

Hi, zzloewrider
_"quick high pitched sound"_ -- i think this sounds like the PSU. The LED diagnostics is a bit misunderstandable in that that it says, when the 2nd LED goes shortly on, then it's the PSU, if it doesn't go on, then it's the LB. In fact, the time during which it goes on, can be VERY short, and badly visible in daylight. Thus, you might have luck that its the PSU, not the more expensive LB. The sounds is that what i remember from my PSU failure as well.
Do you have access to an oscilloscope, or at least to a digital voltmeter? You could try to check the voltages the PSU delivers (the oscilloscope gives you in addition information about stability and spikes). if the PSU delivers unstable voltages, then you know whose fault it is. You might even try then to correct it, possibly by replacing some of the capacitors.
Have a look here: http://www.jimwarholic.com/2008/11/apple-imac-g5-power-supply-issues-and.php
Success!
Thomas

Can logic board die slowly, or is it black'n white?

My Macbook Pro 15" i7 of early 2011 seems to have a major problem related to the logic board.
in a nutshell, in case you don't have time to read the details:
The computer stopped starting up after quite a few restarts, AHT, PRAM reset, safe boots, new RAM and new SSD. This all happened withing 3 days.
Apple service guys will look at it tomorrow, but they already said it's most likely logic board failure and will need replacement.
the long story:
symptoms I faced along the way:
- less than two weeks ago, screen started freezing forcing me to force-shut down.
- started repeating within hours, occasionally giving Kernel Panic message.
- within a day, frozen screens had several varieties which would either come after a few minutes of working or at startup: blue screen with vertical bars of different shade blue, or same with yellow tones, or the last seen screen with a couple inches of the of the right side of screen having shifted to the left side with a thick black bar in between the two (i could still move the mouse for a while but not able to click).
- started also having sessions where the computer would not start up at all (blue screen or gray screen with wheel turning)
- in between these steps I ran the computer on safe mode mostly successfully, did Apple Hardware Test 3 times with nothing wrong diagnosed (took 18 mins each), I did PRAM reset a few times too
- i tested these with different peripherals and power cable attached and not attached (normally i have a USB external and one or rarely two firewire drives attached for my video and photo work).
I realized that the computer would still be working after the freeze too. I use the MBPro to share internet for my iPhone and while it was frozen I still had internet.
I was following the suggestions on these forums to diagnose the problem.
Some suggested that it could be the RAM.
Coincidentally, the new 16 GB RAM that i had ordered came with the 246GB SSD just then.
As warranty ended already some months ago, I did the replacement with my dad who is an electrician and would know where to touch where not to.
The computer came back to life, super fast with the new SSD. I installed Mac OS X on it, set up the older HDD which I placed in place of the old DVD drive and started moving files around to configure my stysem.
after several hours the screen freezing came back again.
then after repeating the above steps of AHT (which took 2 hours), PRAM etc, it stopped starting up. It won't start anymore. Freezes in the early blue screen.
Just before new year's, I took it to Apple Service in a local store. They said they will have to look at it thoroughly after the 3rd (tomorrow). But the guy said the symptoms which I wrote above pretty much tell already that the logic board is dead.
Can it die in a slow manner like this?
It will cost me at least 750$ and I am not even sure if shipment and labor is included in this (I live in Cyprus). This is a very expensive price to pay for a relatively new machine for which I already paid over $2000 when I bought it 18 months ago.
I read Apple has a tendency to call all such symptoms a 'dead logic board' and just rip people off unfairly. I am aware this was mostly for 2007 and 2008 models but I worry they would still do it. I just spent my savings for the SSD and new RAM. So this is a major bummer.
What would you all suggest for me to try? How should I talk to the Apple Service guys?
is it better to just sell this 'as is' and try to get a new or properly working pre-owned one?
Message was edited by: incagraphy

seems like I wrote too long and no-one bothered to read and reply
Sometimes some posts just seem to slip through the cracks... if you're taking your machine to an Apple Authorized Service Provider, and they simply 'reconnected' the logic board and you're still having problems, it sounds as if you need to get the logic board replaced. Since you're out of warranty and you, apparently didn't purchase the AppleCare extended warranty, the repair folks will charge you for a logic board replacement.
$750 sounds a little steep, but if that's what it costs then it doesn't seem as if you've an alternative but to pay the price. I don't know about Cyprus, but I do know that in the US there is an Apple flat rate repair pricing scheme in which Apple will repair anything on the machine for less than $350. You might want to look at the article and ask one of the managers about this program and whether or not you could get the 'deal'.
Good luck - sorry that you're having such a bad experience. Just let it be a lesson to always purchase AppleCare - particularly with Apple notebooks.
Clinton

Replaced logic board

Hello,
I just had my macbook pro retina 15"'s logic board replaced. When I got the macbook back from the shop I noticed that the serial number in the about my mac is wrong and the service person got the letters and numbers mixed up. I called the service place and they stated that the logic board would have to be replaced again as they can only enter the serial numbers once.
Is this true or can they re-enter the correct serial number into the same logic board?
Thanks in advance,

As I understand it (and I've never had a logic board replaced) the techs can only 'flash' the serial number to a new logic board once, so what they're telling you seems to be true.
Clinton

New problem WITH the logic board replacement

Hi Everyone,
I sent my computer in recently to get a whirring fan noise repaired, but after receiving my macbook, I have developed the whine.
They tell me they replaced the logic board, but I didn't even ask for one. Now I have a loud whine coming from the left side of my computer near the adaptor.
I guess my question is, is it possible to develop the whine after the logic board has been replaced and why Apple replaced a logic board which had no whine.
Thanks for the help.

You will not be able to order a logic board from Apple. You can look at websites such as iFixit.com and Powerbookmedic.com where Apple MBP parts are available. Costs will be shown there. In additions there are instructions available if you prepared to install it yourself.
Ciao.

Logic Board on iMac G5 busted. What can I do?

Hmmm where to start.
I bought my iMac G5 in July of 2005 so it is just over a year old. About a month ago I turned my computer on and i could not get any kind of hard wired internet connection. So i turned on my air port wireless and was able to get a connection. I then turned that off and rebooted my computer and was able to log on to the hard wire just fine. This has happened three or four times since. It didn't seem like a big deal at the time. Well, I was having trouble getting any kind of internet connection just the other day (hard wire or wireless) and so I decided to take it to a mac genious at a local store. When he plugged it in and went to turn it on nothing happened. That was kinda a kick in the teeth I won't lie. So he quotes me at $861 for a new logic board. $861?!?! I don't care that I didn't buy the warrenty, that's still a ton of money... thats more than half of what I spent on the computer itself. These are great computers. They shouldnt break after just a year. I decided to sleep on it and come here to see if I could get help. I was able to put my hard drive in my room mates Power Mac so none of my information is gone. Does anybody know what I can do? I know there have been problems with logic boards in the past on the iMac G5s (as I have been reading here on the discussion boards). Does anybody know how to get the cost of repair down or how to get some compensation from apple or a replacement board or a replacement computer? I'm at a loss...
Any help would be greatly appreciated.

Here is new information.
I did not actually call apple. It was my mom who did... I'm in class all day so I had to rely on family. What she has found is that the reason the logic boards go bad is because the capasitors heat up and that is what causes to logic board to fry. Like I said I dont know squat about harware.
The reason I did not leave my computer at the apple store is for this reason: He had quoted me a bill for $861 to replace the logic board. I asked him if he was going to call me before he made any replacement decision (no matter what they discovered the real problem to be). He said the only way they would call me was if it was not the logic board. He said that by leaving it there with them I was basically agreeing to fork up $861. So i can't even leave it there for them to run tests for fear that they will just get money happy and throw in a new logic board. I can't stress enough... I don't have that kind of money. I mean ****. New intel imacs start at 999. For that price, screw the G5.
The genious said he doubted it was the power supply due to the internet problem history. As of now my hard drive is in my room mates power mac so i still can have access to all my school files. Thank God for good friends. I hav a friend who owns a computer repair store and he said he can get me a new logic board installed for $376. Granted thats a great price over apple, but how do I make sure that this one does not over heat? I cant be replacing LB after LB like some people have been doing here in the discussion boards. I'm tellin ya, I live a few hours from home and ive got a 96 Grand Am that isnt exactly a gem either.
So again everybody, thanks for all fo your help. More would be greatly appreciated.
Oh, and when I opened it up, the compter wasn't really that dusty. I was thinking it was going to be way worse.
I apologize for my crabbiness... but its practically finals week and ive lost my greatest helper. All of your help is greatly appreciated.
Aaron

Logic board liquid damage of macbook pro retina display late 2012

there were water spilled on my macbook pro 13" retina (late 2012) and I sent it to apple service in Trieste, Italy and they said that the logic board is damaged and I need a new one with a new top case.. which costs as buying a new macbook..is there any suggestions or alternative cheaper way to fix it?!
i will in any price cheaper than buying a new one..

I see nasty corrosion on that logic board
whoever told you they could genuinely "fix" it , lied to you
I also know for 100% certain theyre not going to desolder any of those micro-connections and add new components.
among the laptop repair community, thats called L.C.D. (lost cause destruction) , ...when it exceeds new-unit replacement cost.

Logic board Failure after 2 years - Macbook Pro 13''

Hi! Does anyone had problems regarding logic board failure on Macbooks Pro 13''?
I've bought mine 2 years ago and it started to fail. I took it to the technical support and was told that the logic board was damaged and it had to be changed. The warranty expired last november, so I have to pay for it. The problem is the logic board costs almost the price of a new macbook pro.
It is not possible that Apple think it is ok that a notebook that expensive lasts only two years.
I'm in Brazil and here there is no Apple store. So I'll probably have to buy another laptop ( and sadly I don´t know if I'm going to buy a mac again... not with it lasting as little and being the parts so expensive. )

Hi! Does anyone had problems regarding logic board failure on Macbooks Pro 13''?
I don't have the problem, but it's been percolating on another discussion for several years now:
https://discussions.apple.com/thread/2675881?start=0&tstart=0
You might think about posting there, too, so others can read about your issue.

Which logic boards will fit my Macbook 5,1?

I am looking to upgrade my late 2008 Macbook and would like to replace the logic board instead of purchasing a new computer (I know it's expensive, and I've already upgraded to 8GB of RAM and 750GB storage). Which logic boards are compatible with my Macbook 5,1? I have a 2 GHz Intel Core 2 Duo, so I could feasibly upgrade to the 2.4 GHz late 2008 logic board, but I would like to upgrade quite a bit if possible.
Any input is greatly appreciated!
Specs of my MacBook:
Model Name:    MacBook
Model Identifier:    MacBook5,1
Processor Name:    Intel Core 2 Duo
Processor Speed:    2 GHz
Number Of Processors:    1
Total Number Of Cores:    2
L2 Cache:    3 MB
Memory:    8 GB
Bus Speed:    1.07 GHz
Boot ROM Version:    MB51.007D.B03
SMC Version (system):    1.32f8
Serial Number (system):    W88433751AQ
Hardware UUID:    DD281EE0-65F6-5B91-8DFA-A84F6BEF222E
Sudden Motion Sensor:
State:    Enabled

The 5,1 Aluminum Unibody was an oddball in the MacBook series. It doesn't fit in with the rest of the White and Black MacBooks or the 13" MacBook Pros. The 2.4Ghz 5,1 Aluminum Unibody Logic board would fit though.

Cleaning the microprosessor on the logic board

hey guys,
I have an eMac 2002... I am trying to clean the heat sink and the microprocessor on my logic board so that I can apply new thermal paste. I heard to use 90% alcohol, anyone who tried it?
Another thing, I know this is for iMac and Mac minis but maybe some of you had an eMac before... There is a film on the microprocessor covering the whole square like a thin clear plastic one, does that come off before the new thermal paste or not?
And also my optical drive carrier again from the older eMac like all has a metal heat shield. The service manual calls for a cotter pin to hold it in place. I do not remember having a cotter pin there when I was disassembling it. However there is this plastic pin I found on the floor that may have popped without me noticing while I was taking it off. It looks like a screw but plastic without the threads instead a pop in type of kind. Any clues? Can this be the pin?

That film thing was on there... This is the first time I opened it and was kinda puzzled with it... It is like some small square plastic with a smaller square in the middle. I peeled it already being so curious. I think it was a unique thermal pad with the paste already on it like double sticky tape... Sides were covered with what looked like silver thermal paste and the inner square with a black looking paste... I know sounds crazy, but that is what is on my microprocessor...

Classic AIO and Powering on w/ no logic board

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