Does the logic board affect battery performance?

Anyone know of any issues at all?
Cheers

Yeah sorry. It's just that i had my macbook pro repaired due to a faulty logic board. It's a known problem and covered by Apple, so the repair was free. Since it's come back the battery is not working properly. Never had a problem before with it. I suspect that that they've given me someone else's duff battery. However, I'm investigating the possibility that the battery is fine and it's a faulty logic board that is causing the power problems. The battery used to tell me at about 10% to plug in my power cord, and even when i didn't it just went to sleep - as in after getting a dose of power all the programs were open that i was using etc. Now it shuts down at about 35% power.
Does anyone know if the logic board repair could be causing the problem?
Cheers

Similar Messages

What does the Logic Board do exactly?

My MacBook took a little fall yesterday. I went to the Apple store and they told me that the logic board needs to be replaced, and I was curious as to what it does. I have no doubts that the genius at the store was correct, I'm just wondering what it does for future reference.

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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.

Does anyone know what the second button is for on the logic board of an iMac G5 (PPC), 1st generation ?

One button on the logic board of a 1st generation iMac G5 (PPC) is an alternate power button. Does anyone know what the purpose of the other button is?

I am far from certain but I believe it is the power management unit (PMU) reset switch a/k/a Cuda switch: http://support.apple.com/kb/HT1939
Do not press it when the computer is on.

Does Apple Hardware Test cover the Logic Board

Hello,
I was wondering whether the Apple Hardware Test tests the Logic Board. Would I have to do a extensive scan? The reason I am asking is because I am having a possible issue with the sound chip and the Apple Store told me to go home and do a Hardware Test, but never said if the Logic Board is actually covered in testing. Thanks.

My understanding with the extended test is that it's run time will be based largely off how much RAM your system has. I always used the rule of thumb that it was 25-40 minutes per GB of RAM. I once ran an extended test on a Mac Pro system with 12GB of RAM that took almost 9 hours to run.
The AHT test is not designed to detect any/all hardware issues, even the extended test. Apple Service Providers (Retail Stores as well) have another software-based diagnostic tool that they run, which I believe to be superior to AHT in terms of detecting some issues (not all). Sometimes for specific issues with components on the logic board, there isn't a software test that's going to pick up the issue and you may need to go by what's occurring in the OS.

Mid 2009 applecare logic board and battery ADVICE

returning mac OS and mac hardware buyer here.
i have been questioning (read complaining) about the battery life (1 1/2 hours on safari) and the performance (spinning beachballs on startup, on wake and on starting safari among other things) since i bought this machine. i brought it in for the umpteenth time to the genius bar (they apparently only have 3 of these on record?!) because i had a break and i have a "service battery" alert.
i am being told i can replace the battery and the logic board based upon their diagnostics of the machine and i have FINALLY (Whoo-HOOO yippeee kayeeee'y!!) got a committment from a mac rep that i should be expecting 3 1/2 - 4 hours out of the battery and not 1 1/2 hours.
i don't really have an option here from everything i can tell but does anyone have any advice for me on this? warranty is up in February and from what i am being told i can bring it back if i bring it home and still only get poor battery life.
at the same time i am really unhappy (insert expletive) about having spent so much time troubleshooting this machine only to be told that the hardware seems fine or that the battery tests normal or whatever. this macbook pro 13 inch seems like it was a dog since the day i bought it.
my preference would REALLYT be to trade into mac on a new macbook pro 15" and i am wondering if i am instead i am going to have to just repair this machine (thank my lucky stars that i buy applecare) and empirically test the machine on my end to make sure that i am getting more than 2 hours per charge and that i don't have the spinning beachballs that i have had to have dealt with over the last 3 years...
i mean, i /have/ to fix this machine and monitor it over the next three months instead of them helping me cut bait with it by getting some financial incentive somehow to move into a new MBP is that right...?
TIA

thanks.
looks like it has now had a new battery and a new logic board and it is still failing hardware test for the battery.
they are now sending it out for additional testing to some other facility.
anyone had a similar experience?

How do I know if the logic board is bad?

So the girlfriend dumped a slew of water on her 20 gig 4th gen photo. I've completely disassembled it and THOROUGHLY dried it out and all seems well from that perspective.
So here is what is happening:
- if I plug it into my PB it does not respond, nor does it start to charge
- if I do a "restart" (menu + center button) with it unplugged I get the exclamation point with the battery (low battery indicator)
- if I do a "restart" while it is plugged into the laptop, I get the lightning bolt with a battery (battery is too low to be recognized by computer)
- if I plug it into the regular AC charger, I get the same results
- if I try to "restart" again, the screen goes blank and then the lightening bolt comes back eventually
I opened it up again and took a volt meter and measured that the battery is still good; I get 3.8V I think or something like that from the red and black wires of the battery. Plus this thing is only like 8 months old, so I know the battery isn't bad.
This leads me to believe that the logic board is bad b/c that is what the battery plugs into. The screen must still be ok b/c it looks fine.
So does anybody have any ideas?

OK, so I have answered my own question. I ordered a logic board and put it in. So I know the logic board was bad.
However, now I'm pretty certain the hard drive is bad too as it just spins but won't do anything. I don't even get the folder with the exclamation point- just the big apple like it is booting up.
So I'm looking for a hard drive unless someone has a better idea???

Serial No Mismatch - logic board and battery compartment

Hi,
I ordered a 1GHz G4 Titanium Powerbook as soon as the first SuperDrive model was announced in Nov, 2002, without any add-ons. I received it in early December, 2002. I have just discovered that the serial number on the logic board (next to the memory bays) is completely different to the serial number in the battery compartment. The serial number in the battery compartment is the same as on the box and as reported by 'About this Mac'. I discovered this the first time I ever took the machine in for service - random system crashes/software failure/occasional panics when booting (not fixed by new RAM).
Does anyone know how this serial number mismatch could possibly happen on a brand new model that came from Apple via an AppleCentre?

A follow-up on this:
I spoke to Apple Australia who said it was not uncommon, even though AppleCare (in India) had said it was not something they had heard of and that I should speak to Customer Relations.
The repair person at the second Apple Store then advised me that the logic board serial no on some machines is in fact the factory's serial no, not Apple's, and therefore it is normal. There is confusion, though, since many newer machines have eg iBooks have Apple's serial no under the key pad.

Bulging or leaking capacitors on the logic boards.

I want to buy and Imac but I was reading macworld.com and I read that there was a problem with bulging or even leaking capacitors on the logic boards. Has anyone had a problem with this. I dont' want to spend that much money and have the type of problem.

The only iMac that was affected by the bulging capacitors was the first generation iMac G5. It's my understanding that a bad batch of capacitors were made that not only affected Apple, but many other computer manufacturers.
Apple has an Extended Repair Program in place to fix those iMacs exhibiting video or power problems. In addition to my Intel iMac (which, BTW, has performed flawlessly since I got it in January), we own a first generation iMac G5 that had some bulging caps. Even though it was out of warranty and was not exhibiting video or power problems (its fans would rev at full speed after the computer was put to sleep), Apple replaced the logic board and the power supply at no cost to me and it only took 3 days.

I have a Mac book pro, 15" that I bought 4 years a go, the logic board has died, what recoarse do I have with Apple regarding a product that should last years

I have a 15" Macbook that I bought in late 2007, which is just 4 years old Since then the battery wont hold a descent charge, the screen had to be changed and now the logic board has died. plus there is an issue with the video card for that same model. I would expect a product that carries the Apple brand to last longer. They are not cheap to buy and its some thing that I cant afford to replace every few years. Does any body think that Apple has an obligation to do the right thing or am I expecting too much.

Four years is a pretty typical lifespan for a battery (and for a computer in general).
Does any body think that Apple has an obligation to do the right thing or am I expecting too much.
You are expecting too much.

I got my Macbook Pro 17inch (early 2011) back from Apple (they had to replace the logic board) and now my microphone is not working

I got my Macbook Pro 17inch (early 2011) back from Apple (they had to replace the logic board) 3 days ago, I had a terrible experience as the genious who gave me my solid state disk for safekeeping lost my disk's brackets thus I had to wait 2 more hours until they find one after 10 days of waiting for the repair. I noticed some weird sounds, like somehting is moving with the mac 1-2 times, even if I have no mechanical parts other than the fans, but my real issue at the moment is that my microphone is not working. I can see the mic in the System Info however and in Audio Midi Setup. In the Audio Midi Setup I see that the master chanel is turned off and I can't turn in on. Ch 1 and 2 are on full. I also noticed the first seconds after the comp. boots the blue bar goes to the middle in the System Preferences -> Sound -> Input. Any ideas what to do or try? I do not want to go back to the apple store as it is 50 minutes away from here and I need my laptop as a computer science student. Everything else is working perfectly.

You need to call both the store that did the repair and Apple directly, warranty service or Apple care, and report this problem with both of them and get a ticket number of some kind (some kind of verification number) that the unit just came back from major service with this problem and that you want it fixed when you can lose the use of it, which is not right now.
Without doing something like that they could easily say it is damage not covered under the normal warranty.
God knows what the repair center did and did not do to it while it was there.
And depending on when you actually bought it the warranty could run out in the mean time.

The logic board of my macbkpro 10.6.8 (OS ML) has died. I want t migrate info to another McbkPro (OS Snow Leopard) but is asking me to update to same OS. Can I update the latter to Mavericks and migrate the info from Mountain lion? thanks

Hi i took my macbook pro to an apple store because it would not start correctly. The veredict was that the logic board was dead. As this is a very expensive item to replace, I have decided I will buy a new one but I am currently overseas, and will wait a couple of months when I get back home. This is a macbookpro 15 inch early 2011, running on Mountain Lion OS. I have another macbook pro 13inch running on snow leopard. At the store we tried to migrate the info using an ethernet cable (using the "T" command on startup) but the system asked for an update of the OS. The guy at the store told me I had to update the OS so that the two macs would be on the same OS - mountain Lion. As the newest (and free) OS is Mavericks, I wonder wheather I coud update the 13 inch mac to mavericks and perform the migration. The guy at the store was explicit to say that if the OS were different it would not work. But reading on the apple website it seems that mavericks support this kind of migration altough is not explicit about it. Can you please help?
thanks

Hi BobRz,
As this is a new issue for me, I believe I had the incorrect approach, maybe you can help me. What I want to do is recover a few files in my desktop, and some information i had on the iCal application and the Mail application as well.As I do not want to do a full migration into this computer (which is not mine) I believe that starting the damaged MBP in Target mode should allow me to search and cop the files I need. But:
1. Can I open the Ical and mail apps to look for the info I need while reading it as an external HD ?
2. Do the target machine (my friends) still need to be updated to ML o Mavs so that it recognizes my MBP as an external drive if starting it in Target mode ? (no migration assistant)
Thanks.

Replacing the Logic Board on an iMac G4 (flat panel)

Hi all
A friend of mine has a G4 Flat Panel iMac, and apparently, though I've not seen it for myself yet, her Logic Board died on her. She has since bought an iMac G5. But I've been trying to find where one can get a replacement logic board from, that isn't going to break the bank. I've found nothing so far. Are these available anywhere? And will they be so expensive as to make it not worth the bother? And of course I have not found any technical data about how you open and replace components in one of these iMacs. Apple don't post them since they are supposed to be tampered with only by Apple certified technicians.
Thanks.

Hello,
Apple doesn't typically make their repair components available to the end-user. So, it's a bit harder to find a replacement logic-board for one of their computers.
The service centers can get them, but it's not going to be cheap.
Typically, you can expect to pay $500 to $800 for a replacement logic-board from Apple.
And, the service center is only going to sell it to you if you let them install it.
But, you can sometimes find places that sell them.
This place used to sell lots of Apple logic-boards, case parts, brackets, keyboards, etc. But, they stopped for some reason. But, you might call and see if they have what you need in a warehouse somewhere:
http://cgnusa.com/scripts/default.asp
And, this place does sell some parts for the Do-It-Youself person. But, they typically require you to send in your system for a new logic-board. But, you might be able to get a price from them:
http://www.dttservice.com/index.html
In all honesty, if you are looking for a part you can install yourself, and don't want to pay $500 or more, then you are probably better-off trying to find a used part.
If you can find one who's screen died, but the logic-board is still good on, then you may be able to work out a deal. I hate to recommend them, but e-bay is probably your best chance for a used replacement logic-board. Just don't pay too much.
Whatever route you / they choose, keep in-mind the price of a low-end Mac Mini. Don't spend more to repair an old system than you would spend to buy a current low-end system.
I hope this helps.

Is replacing the logic board going to make my early 2011 Macbook Pro as good as before

I have an early 2011 15" Macbook Pro that just crashed completely days ago. I sent it to the genius bar and was told that I need to replace the logic board and it costs amost $1000. I'm thinking whether changing the logic board actually means that my macbook would be as good as before. I mean I'm not having high expectations but I hope that it would at least lasts for another few years. I've only had this Mac for three years and I'm not sure if its a consistent problem for the early 2011 models regarding the logic board but I sure had mine replaced for at least three times in the first year when I got it. I'm not sure if I should just use that same money to get a brand new laptop, problem is, I'm quite unwilling to switching to a windows system if you understand how it feels.

The first thing I'd look at is your hard drive ... is your free space 10% to 15% or more of the total capacity? If not, that would account for what you're seeing.
See this for other considerations: http://www.thexlab.com/faqs/performance.html

When Replacing the Logic Board....

I recently sent my iBook in for a mulittude of repairs, including a problem with the CD R-W/DVD drive not working right. To fix this they replaced the Logic Board, but when doing so the Hard Drive was wiped. I've had my logic board replaced 100s of times on an iBook G3 without that happening. Anyone know why that would have changed this time?
--Ben

Not answered, but highly irrelevant after 2 years, and a new computer

Does the logic board affect battery performance?

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