Identify logic board revision (without GPU issue)

Hello!
I am participant of this program https://www.apple.com/support/macbookpro-videoissues/
Few days ago I've got from apple authorized service repaired macbook pro late 2011 md318 a1286.
I have small reason to believe that its not new revision of logic board, just a board from other old macbook.
How can I identify that this is new version of logic board without gpu issue.
Thanks a lot.

It doesn't look like brand new. May Apple send refurbished logic board to Authorized Service?

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How Do You Identify Logic board revisions for MDD FW800?

I have a logicboard, the CPU board, and the heatsink for a PowerMac G4 MDD FW800 DP 1.25 that I want to sell, but I can't figure out what Revision it is (A, B, C) or if it is 133MHz or 167MHz. I do not have the computer (bought for parts) they came from anymore but I have my own MDD FW800 DP1.25 I could consult. Logic boards, I'm discovfering, don't make for easy reading--can anyone assist or point me to a "Logic Boards 101" text?

Hi-
The following should help to ID the logic board.
For the FW800 1 ghz board, the part is identified by looking at the serial # ON THE BOARD.
Look for one of the following code combinations in the
last 4 digits of the serial # : NME,P2X,P3E,P3G,P3U,P7P,P8E,
PFD,PFF,PFG,PFT
This would be the 133mhz model.
For FW800 multi processor boards, the part is identified by looking at the serial # ON THE BOARD.
Look for one of the following code combinations in the
last 4 digits of the serial # : NMF,P2Y,P3F,P3H,P3V,P7Q,P8F,
PFE,PFH,PFJ,PFU
This would be the 167mhz model.
For the MDD 167mhz, rev A, look for one of the following code combinations in the
last 4 digits of the serial # MXJ,ND0,ND9,NE2,NE8,NEV,NEX,NFA,NFG,
NG1,NKT,NNR, NNS,NNW,NRC,NWK,P8S,PG2,PG3,PG4,PG5,PG6,PGI
For the MDD 133mhz, rev B, look for one of the following code combinations in the
last 4 digits of the serial # : NF9,NG1,NNR,NRC,PG7
For the MDD 167mhz, rev. C, to determine which 167 MHz logic board is installed in the computer, check the AirPort Card connector at the edge of the board.
If there is a 2-pin fan connector on both sides of the AirPort Card
connector, it is rev.C. Otherwise use rev. A.
Look for one of the following code combinations in the
last 4 digits of the serial # :MXJ,ND0,ND9,NE2,NE8,NEV,NEX,
NFA,NFG,NG1,NKT,NNR,NNS,NNW,NRC,NWK,P8S,PG2,PG3,
PG4,PG5,PG6,PGI
For further reference, check here:
http://www.mac-resource.com/store.php?cat=desktopparts-logicboards
G4 AGP(450)Sawtooth Mac OS X (10.4.8) 2ghzPPC,1.62gbSDRAM, ATI9800, DVR-109,(IntHD)120&160,LaCie160,23"Cinema Display

HT203254 MBP Logic board failure or GPU failure? Apparently it's simple to test...

I have a 2008 Macbook Pro 15" (2.2Ghz) with NVidia 8600M GT graphics chip. Last month it failed, no longer booting up. The fans start, the LED light comes on, but the keyboard, hard drive and screen fail to come on. After reading article TS2377 I was convinced that the symptoms described match those on my MBP, so I took it to the nearest Apple store. The 'genius' at the 'genius bar' (cringe) took it away then came back and told me that the problem was with the logic board, not the GPU. They diagnosed this by removing the RAM and seeing if the RAM failure beeps sounded. Seeing as there was no sound they diagnosed that the logic board was the source of failure because the RAM test comes before the GPU test in the boot sequence. This test is so simple surely it should be posted under article TS2377???
I must say that I'm completely unconvinced by the diagnosis, but who can argue with a 'genius'? I'd really appreciate it if someone on here could give me a second opinion? Even if they turn out to be right I think I might take out the logic board to see if there's evidence that the GPU has fried the logic board...

There are many comments about the NVIDIA GPU issue and Apple not replacing the GPU. I will say I had good success in getting Apple to replace mine in my Macbook Pro. When my computer suddenly would not fully turn on, I researched the issue to find out the possible reasons and then somewhat dawdled in taking it in. It was 2 weeks past the 4-year GPU warranty window. But I had had problems for some time preceding when it wouldn't fully turn on, such as geo designs appearing on the screen and the screen going dark, and those issues did occur at least a month or more before my warranty ended. I had no idea what those issues meant and simply ignored them until the computer wouldn't fully turn on.
The good folks at The Apple store in Austin initially said no luck; yes it's the GPU but it's two weeks past the warranty. But then they kindly relented because clearly the symptoms I described to them that occurred during the warranty were caused by the faulty GPU. How would I know this was the issue? They replaced the logic board at no cost. I've seen comments here that a Genius said the problem was the logic board, not the GPU, and therefore Apple would not make the repair. I was told by my Genius that the GPU is partof the logic board, and therefore the logic board needed replacing. This was a $526 repair that I was grateful Apple took care of. I would not have made the repair and would have gone out and bought a new non-Apple computer with a warranty.
When I got my computer back, I checked it before I left the Apple store and it was running slow. I ended up paying Apple to replace the hard drive, so ultimately I did pay for an Apple repair. But I'm a happy rather than disappointed Apple customer because of the free GPU repair. Happy, devoted customers has made Apple a great company, and it should be worth it to the company to fix the faulty GPUs that are close to warranty to keep customers and keep them happy.

Power Mac G5 DP1.8GHz - Bad Logic Board or Power Management Issue?

I have a Power Mac G5 DP1.8GHz/1.5GB/80GB which I bought non-working. It has not yet been disassembled or examined by a certified tech. This is it's issue (which replicates): the computer powers on. It makes a single warning tone, then the LED flashed at least 15 times (too fast to count). Then the posting chord is heard. Hard drive spins up. Then nothing (no video). Won’t boot from any disk. I have changed the RAM and tested the RAM banks with known-to-be-good RAM from another DP1.8GHz G5. The warning tone stopped once or twice after this switch, but then it didn’t chime. I changed the PRAM battery, but not with as new one. However, after installing the used one and then resetting the PMU, it displayed video briefly for the first time. While installed in the other 1.8GHz G5, the hard drive was formatted, given a clean install of OS X 10.4.11, and then moved into this computer where is never mounts. The computer is not accessible through TDM.
Do I have a bad logic board? Bad CPUs? A power managment issue? A RAM issue?

Through my own trial and error troubleshooting, I have found the CPUs to be in good working order and the logic board passes the Apple Service Diagnostic every time. Despite the installation of numerous pairs of modules that worked in another DP1.8GHz, the computer has a RAM issue-it gives the "no good RAM" tone most of the time when it powers up (after a PMU reset it does not). Also the computer boots from disk or into Open Firmware but the disk utility can't see either hard drive so I may have a bad SATA controller.

Is a new logic board revision confirmed? How to recognize it?

I have seen a lot of talk about a new logic board, and some sort of photo of a paper someone got describing that it required 1.0.4.6...
Is this really a new revision (which then fixes the whine and heat)?
How do you recognize it? I mean, does it have a name, or what do I tell the tech guys at my local service center here in Sweden?
Apple surely must have some stock of spare older logic boards left, and I really want to make sure that I won't receive one of those when I take my MBP in for service.

If your computer is still whining, then yes, you may absolutely be able to get your logic board replaced again. Your logic board was replaced once on March 29th but, as I now too can confirm, Apple released an even newer, revised logic board for the MacBook Pros during the last week of June.
If you are still experiencing the whine, call up AppleCare and simply be persistent and ask for a logic board replacement. If they say they don't know what you're talking about, simply tell them to look it up, as this is what I had to do. Once my Product Specialist sent an "escalation" to Engineering, he called me back within 2 business days and was able to directly confirm that there was a new logic board released recently, and we arranged to have my MBP sent in. And don't worry that your logic board was already replaced once. Mine too was replaced even more recently (end of May), but being as though this revision is very recent, it didn't matter. Just be polite but insist on getting a new logic board.
I however am still waiting on its return to verify whether or not my whine is gone. Turnaround time was amazing; MBP shipped overnight (over Thursday night, that is) and arrived at the repair depot yesterday morning and is on its way back to me as we speak! I should be able to report back on Monday afternoon...

Logic Board or Hard Drive Issue?

Recently my PowerBook G4 failed to boot from the internal hard drive. Gray Apple screen, spinning wheel and after a couple of minutes restart is all I get. What happened initially was the computer froze not allowing Safari to quit for restart. I had to manually shut down after all other means did not work (Force Quit, etc.). I have been able to get it to boot from an external Firewire drive running 10.4, but it will not recognize a USB drive, though the USB ports work for a printer and scanner. I was also able to get it to boot from a 10.5 Install DVD that came with my wife's MacBook. Since I bought this PowerBook used, it had no disks included, but did have 10.5 installed. The other thing is the lower RAM slot has not worked from the day I got it. When I run Disk Utility the drive checks out, though there were some Permission repairs. SMART checks verified. I seem to be able to access the internal disk when booted from the external. Reset PMU & PRAM, no difference. Should I try replacing the hard drive or do I have another issue here?

First up, PowerPC-based Macs can't boot up from a USB external drive (per se... there is a workaround and "hack"). Only Intel-based Macs can do that.
Second, since you say it works and boots up when connected to a FireWire external drive, I believe it is a hard drive issue. S.M.A.R.T. status is not ("not") always a reliable indicator from what I've heard. It may say it's verified, but really it's failing. By the same token, it may say failed, but really it's fine.
That is not always the case however. 95% of the time, S.M.A.R.T. status is highly accurate.
If you are so inclined, you can open up your PowerBook, take out the hard drive, and place a new one in there and see what happens. If it works, you're in business. And you only spent a $100 or less on a new drive (which you might end up needing anyway if your current drive is indeed broken).
(If your drive isn't broken, then you have a backup drive ).
If the new drive installed doesn't work, then it is a logic board issue or something else. But since you say it works fine and boots up from a Leopard install DVD, I think it may just be the hard drive. And a new logic board usually starts at $300 so think about that as well. (You could get a new used one for a bit more and sell that one for parts).

Logic Board Mac Mid 2010 Issues and Questions.

Hi Everybody, this topic is somewhat old but I've been having Kernel Errors with my 2010 MacBook Pro, and they recently just started happening within the last 3-5 mos. Here lately they have been get worse. It will restart for no reason while I'm in the middle of anything. It will sometimes restart 4 times in a row. I figure it's the Logic Board. After looking around the community I noticed that I wasn't the only one with this issue. I also saw that at some point there was free replacement. I didn't know about this at the time because I wasn't having the issue. Is this still going on or is there some sort of discounted rate? I had apple care for 3 years but now it's gone of course and is wondering if there is anything I can do?
Here is a pictured of one of Kernel Errors I had from 2 mos ago.
Thank you for your help! any knowledge about this is appreciated!

Please don't post pics of logs. Better to post the log itself: Mac OS X- How to log a kernel panic.
OS X- About kernel panics
Visit The XLab FAQs and read the FAQ on resolving kernel panics.

Threads in Logic board closed without solutions

Could a mod look at these two? These are problems users are trying to find solutions to, and they've been closed before a solution has been found.
http://discussions.apple.com/thread.jspa?threadID=1685807&tstart=0
http://discussions.apple.com/thread.jspa?threadID=1682452&tstart=0
There definitely have been some off topic posts on these, but PLEASE just delete any off topic posts instead of locking the whole thread. In particular, I'd like to ask the mods to look at a user named <username removed> - he has been taking many many threads off topic. Generally, when someone posts with a problem and asks for a solution, he will respond every time saying that the problem doesn't exist, or that the user is using the program wrong. After dozens and dozens of these posts, it has become incredibly disruptive and extremely difficult to have a discussion and try and actually get questions answered.
If a mod would look into this, I'd appreciate it very much. Thanks.
Message was edited by: Host

Mike,
The reason those threads are closed are because of the other issue you brought up. Unfortunately after multiple attempts of pruning, we felt it necessary to close the topics. One was marked as answered and the other seemed to have reached an agreement about the solutions. If the Original Posters feel that the topics need to continue, they can make the request in this thread and we will reopen them.
Eric W.

Grey Screen at start-up - Troubleshoot harddrive and/or logic board?

Hi everyone. Sorry for the lengthy post, but hopefully you can help me - I've spent a lot of time on the boards already, but hoped you could clarify some things.
The problem is my Powerbook will not get past the grey screen at start-up. It will not boot off the 10.5 install disk and I can't eject the install disk to run the hardware test disk. Removing 3rd party ram, resetting PRAM, NVRAM, attempting to boot in 'safe' mode haven't helped. The harddrive is softly clicking/searching.
So some questions:
1) Is it possible that an interrupted time machine backup will bork the drive to the point where it wont boot? (See back-story below). I wouldn't have thought so, but prove me wrong.
2) Should I be able to boot from the install disk if the harddrive is stuffed?
3) If it is hardware, it's either the logic board or the drive. Is there any way to determine what it is (eg: is it possible to do a remote hardware test?)
Edit: Just tried mounting the drive in target disk mode using an iBook, but it wouldn't mount. Powerbook displays a black screen.
Oh, and I should point out that this is well out of warranty and any fixes would have to be cheap : ). Basically I need to determine if it's the drive or the logic board, preferably without having to buy and install a new drive when it may not be the problem.
Any help or advice would be appreciated.
Cheers
- Ben
Here's the back story if it's any help; recently upgraded to 10.5, created a base install disk image of all installed and registered apps (in the event that my drive failed). Copied data etc from the previous system over. It ran fine for a few days. This morning I ran time machine for the first time, left the computer for a while, came back and the screen was black (as if it was just displaying black, as opposed to off). Thinking it was just a display issue (which I've seen before), I put the system to sleep (power button, then 's'), woke it up again; still black. So I forced a shut down (wouldn't allow me to do a normal shut down, because dialogue boxes must have been preventing it) and on boot I got the grey screen.
-------

Hi Ben W. I don't have a good answer for you, but based on your information and what you've done, I think I would try starting the machine after disconnecting the harddrive. That requires taking the top off first, for which instructions are on ifixit.com.
I can conjecture that a blown HD is preventing normal operation, perhaps sucking the power down, disrupting the optical drive, etc. This is purely conjecture, but costs you nothing but your time. If this turns out to be the case, I figure the optical drive should start responding again (hold C key during reboot, etc).

New logic board and network connection problems

My late 2007 MBP just had a new logic board installed. I have home and work wireless networks that are configured to connect automatically. This always worked flawlessly in the past. My MBP would find the network, connect and all was well. Since I've had the new logic board I'm having issues. The wireless network will be detected but an IP address is not assigned so I can't get on the network or internet. Both my home and work networks were set to assign a specific IP address to my computer. The MAC address detected by the router is correct, at least according to System Preferences.
The only way I can connect is to disable the firewall (Allow all incoming connections). When I do this I connect immediately to the network and everything works as normal. I can even turn the firewall back on and everything will be fine, that is until I leave work and turn the computer on at home. Then I have to go through this again. And then again when I go to work in the morning. I've tried deleting my router profile and resetting from scratch, deleting the network profiles in System Preferences and re-detecting. I don't know what else to try. It's an annoying problem.
Any suggestions?
Thanks.
Kevin

I think I have it fixed. One of the solutions I read about had to do with the 10.5.7 upgrade. I have always installed the smaller upgrades, not the larger "combo" upgrades. One tip suggested installing the full combo upgrade because, among other things, it re-creates two specific files that control how the computer interacts with the network. I installed the combo upgrade last Friday and connected without difficulty to the network at my office this morning. If I connect just as easily when I get home tonight I will consider the problem solved.
Cheers!
Kevin

Power Mac G5 Dual 1.8 Problems / Failed Logic Board?

Okay, it seems that many other people are having problems with the Power Mac G5. All I can really say to Apple is that I love Macintosh and the Power Mac G5 has been the greatest computer I have ever owned. It seems that the logic board is the main issue for most people. Maybe Apple still needs to work out some bugs, but one thing for sure is that it would really be nice if there were no more produced like this and that everyone gets their problems solved without going through it again.
Well, my G5 stopped working about a month ago. I've been really lonely and sad too... It started that the computer would randomly start, meaning that I would have to power it up and down several times until it randomly start. Other people have had these issues too. And after about 2 days of doing this it froze and now it refuses to start. I've done everything I possibly can without being a technician. I have two video cards and switching them dosen't help, my monitor works, and when I take out the ram there's no beeping. No power to keyboard or mouse, can't reset firmware, or reinstall OS or run hardware test. I reset PMU, but still no luck. I've tested both my Superdrive and Hard Drive. They both work. I have a friend with a G5 and I put my Hard Drive in and it booted up perfectly.
Fans are functional, they speed up after about five minutes with no chime at start up. Which the chime is supposed to indicate a hardware failure. My only clues are the logic board and the processors, possibly the power board. Though it seems to be the logic board most of the time. The big thing is, does Apple know what's causing this to happen to Apple fans and costumers?
I saw an earlier post with a guy who bought the same G5 a year and a half ago with three year warranty and had the logic board replaced-three times already!!!
Unfortunately my G5 is out of warranty. I bought it from CompUSA and someone had boughten it and decided to return, unused still. They gave me a the 3-year warranty extension program, but I could never activate it. I've had the computer about a year and a half myself. I bought it early June last year June 2004. But this was right before the new line-up came out. So it's the November 2003 model. It's ecspecially depressing that a week or two later I could of gotten it for $500 dollars cheaper and a newer model. Not to also mention the beautiful new Apple Cinema Displays that match the G5. Though I doubt that Apple with have any sympathy for me for not waiting a little longer. I love my G5 and I just want to hear the chime and watch my 20" Apple ADC Display turn on. I don't live anywhere close the any Apple Stores to take it in for diagnostics.
So I'm really in a tunnel of doom. I'm thinking of buying the logic board from mac-pro.com for $700. I heard Apple wants a $1000, but I don't know. Though driving it in to the Apple store isn't gonna be easy for me. Even so, I'm afraid of how costly it will be. I need to know what's defective and needs replacement more than anything. I only wish there was some way I could activate my 3-year warranty extension program. Well, I suppose that's really enough of my pitiful crying.
Does Apple or anyone care to help me? I would be forever so happy if I could get my G5 working again. Thanks to anyone who'll attempt to help. You too Apple.

Hey Everyone -
Have you looked into the iMac G5 repair exstension Program for video and power issues? Posted on Apples website....The iMac G5 repair extension program for video and power issues applies to the first generation G5 computers that have video or power-related issues as a result of specific component failure. If your iMac G5 is exhibiting any of following symptoms: scrambled or discorted video, no video, no power, your computer may be leigible for repair, free of charge. This article was posted on October 21, 2005.
My computer was freezing up, not booting up, locking on the blue page, static looking when trying to boot up, etc. I took it in to the Apple Store yesterday, and they will be replacing the board within the next 2 weeks. Although my have an extended warrenty, the replacement program is avaliable for certain first generation iMac G5 models that were sold between approximatrely September 2004 and June 2005 freaturing 17- and 20-inch displays with 1.6GHz and 1.8Ghz processors.
If Apple or an Apple Authorized Service Provider determines that your iMac G5 computer is eligible as part of the program, the repair will be covered by Apple for up to two years from the original date of purchase even if your iMac G5 is out of warrenty. This is a worldwide Apple program.
It's worth looking up the article, it list the serial number ranges that apply. Worth a look!

Is there a difference between G3 B&W rev 2 logic boards?

I have a G3 B&W 450 mhz. The logic board went bad, I had to open the case and hit the reset button every time I turned it on. I bought at replacement rev 2 logic board (comes without a processor). I installed my 450 processor into the new logic board and now System Profiler is listing my unit as a 300 mhz model. I looked up the specs and bus speed is showing as 100 mhz on 300-450 mhz G3s. The logic boards are both rev 2. Do I need to do something else? Or did I get the wrong board? Is my only solution to replace the logic board yet again?

Welcome to the Apple user-to-User discussions!
I had to open the case and hit the reset button every time I turned it on.
That is an indication that the US$8 battery is dead. If it fired up after hitting the button, the logic board you had was fine.
I installed my 450 processor into the new logic board and now System Profiler is listing my unit as a 300 mhz model.
The clock to the processor is set with an about 10-position jumper block near the processor socket, under a label warning you that the \[generous 1-year] warranty is void if you remove this label.
If you kept the jumper block that came with the new board, that is not good news, as almost all 300 MHz models were Rev 1, and have issues with drives larger than about 40 GB.
When you put in a 450 jumper block or discrete jumpers, The processor in the socket is clocked at higher speed.

G5 Logic Boards

Hey guys. Long story short here. A while back, I had my logic board replaced in my G5 iMac with what turned out to be a defective logic board. After one issue after another, it's out of warranty.
Around the time I purchased my iMac, a recall was put out on logic boards and power supplies, which can be found here http://www.apple.com/support/imac/repairextensionprogram/
Although I purchased it in the given time frame, the serial number on my iMac does not fall in the given range. No issue there, since it doesn't have its origianl logic board. What I'm wondering is if its possible a defective logic board from that range was inserted into my iMac. I had it repaired at a certified repair facility, although not an actual Apple store. Has anything like this ever happened and if so, is there a recall on the boards specifically? The reason I wonder is my iMac was suffering from similar power issues. Obviously, I would rather avoid having to pay for defective board that was meant to replace my broken one. Thanks.
G5 iMac Mac OS X (10.4)

I too have had the same issues (see my rant yesterday). I am getting ready to throw in the towel. The best part is that many software vendors, mindful of the fact that folks will swap out ocmponents such as hard drives, peg their authorization to the motherboards (serial numbers). So the fun only just begins ......
When I get my mac back with a new logic board, I will then have to "reauthorize" all of those programs and "deauthorize them first on the old logic board. If I am not mistaken, you should deauthorize your iTunes music as well or it may be counted as multiple machines.
Question is - when do you throw in the towel and call it a paperweight. I had a Dell - I couldn't kill it - crappy Windowz OS and Software but rock solid.
This is my first experience with a mac - more lemon than apple frankly. Apple has probably lost a significant amount of the original profits they made on this series , so they have an incentive to fix it moving forward. Let's hope so. This is the worst QC experience in all my years of computing. Even my old Gateway 2000 didn't act like this. I love this machine, but at the end of the day - I just need the thing to work. Looks nice, sleek sexy design and all - but if I can't use it.
BTW - going on third power supply. It's the late 2004 / 2005 first generation iMac's. Now I have learned. Wait ..... just like in software ...don't but 1.0 of anything - lesson learned - the hard way

Getting data off harddrive when logic board is bad.

My Mac has stopped booting and I am curently waiting for a replacement logic board to fix the issue. However until it arrives, is there a way I can get the data off of the harddrive? The ccomputer will not start in target mode so that option does not work. I can't think of any other way.
Any ideas would be helpful.

If the issue is with the logic board (and, thus you can't start target disk mode), you need to take the system to a Mac service center (such as your local Mac store) and have them remove the drive for you so that you can put it in an external enclosure and access the data from another computer.
That will cost you money. You can do it yourself (there's instructions on the net), but in doing so you's void your warrantly. If there's one thing I'd nit-pick about the Mac (er, Apple), is that they don't make things (other than the Mac Pro) user-servicable. I think it they could actually reduce costs and increase customer satisfaction by making it so. Swapping out hard-disks is really necessary for all sorts of reasons today, not the least of which is that the bigger they get the more likely (and more frequently) they fail.

Logic board symol?

Hi there!
I was told by a seller in German store that Rev.E solves the whine and heat problems.
I'll have it replaced in Poland to logic board with symbol: 661-4044.
What does it mean? Is it the newest one?
Thanks
Adam M

Don't worry,
I don't think anyone's English is good enough to understand what he wrote. It seems like he's being a bit of a jerk - as they say in American and if he was any sort of man he'd apologise. He's just making fun of the fact that you are not a native English speaker, but you should see and hear some of the horrible things they do to the English language in America so I wouldn't worry about it or him.
Your original post was fine and quite understandable. Sorry I can't answer your question about the latest logic board revision, but hopefully it will be the latest and best.
Best of luck.

Identify logic board revision (without GPU issue)

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