Power Mac G5 :: Dual 2.0GHz G5 Logic Board - Drive Controller
Nov 14, 2007
I have a dual 2.0GHz G5 that's refusing to boot consistently/run consistently. Here are the symptoms:- Runs for inconsistent period of time; sometimes it hangs just after logging in, other times it hangs after an hour or so of backing up the boot drive (50-75% complete)- Fails to boot after hanging; sometimes it stops at the gray Apple screen without a wait icon, sometimes it stops at the same screen with wait icon, other times the screen stays black- Frequently will not boot into single-user mode- Frequently will not allow you into open-firmware
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Mar 6, 2007
I just got a Dual 1 Ghz MDD. It's a big step up from my 500 Mhz Sawtooth!
The problem is that it (supposedly) needs a new logic board. I've been watching logic boards on ebay, but I'm not finding anything with matching part numbers. My logic board has the following numbers:
630-4373 EEHNNW
448F2
KD2370366NFGA
630-4269
I guess the important numbers are the 630-* numbers. Perhaps one it the
'as designed' rev part number, and one is the 'as manufactured' rev part number?
I have the dual 1 Ghz processors; would they work on a 1.25 Ghz logic board? Most of the boards I see on ebay are 820-1476-A, or 820-1308-A.
What's the difference between the 820- boards and the 630- boards?
I don't have a complete service file for the MDD; can anyone email a copy?
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Mar 18, 2009
Does anyone know if the logic board is the same for all current dual nehalem processors offered by Apple? Or does the dual 2.26GHz quad have a different logic board than the dual 2.93GHz quad?
It seems like if they have the same logic board you could buy the dual 2.26GHz now and down the road you could buy the dual 2.93GHz chips (when they aren't $2,600 more) and just replace the dual 2.26GHz chips. Maybe it's not that easy, but if it is it seems like a great alternative to buying the top machine right now. Does anyone know if this is possible??
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Mar 30, 2012
I've got a g5 2.5 dual mother replace to a 1.8 dual g5 tower, nothing happen except all the fans, did anyone know is it work, or my 2.5 mother board also dead?
Info:
PowerMac, Mac OS X (10.4.11)
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May 13, 2008
so i've got a system with a fried c2d board. i can pick up a cd board for $150 plus shipping which is good for me. to find a comparable replacement, i'm looking at ~350 and i'm just not feelin that price as im on a budget.
i'm not concerned about the speed decrease as im just trying to get this thing rebuilt.
i understand that there are different heatsink assemblys..vertical vs horizontal. however, i do not know how to tell the difference and i am also unsure whether or not my c2d heatsink will work on this board i receive.
the logicboard possess a t7300 c2d and model # is 820-2279-a, it appears.
i cant find anything on that model, except for on ebay.
and i totally cant find the serial number on this macbook. under the battery on the tray has no serial number listed, and i've read through this documentation [URL]
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Mar 12, 2012
I've been using my pmg4 for a while, just recently I noticed that there is a red light located on the logic board on corner of processor heatsink and ram boards. this light is active during when the computer is on. the computer did not misbehave but is it trying to say something? is this normal operation?
Info:
Mac Pro, Mac OS X (10.7.2), MacBook Pro 13.3 | Logic Studio |
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Feb 25, 2010
I've got a 20" 2.1GHz iMac G5 iSight on my bench that doesn't power up.
I've tracked down the issue to a grenaded IC on the logic board.
The IC is an 8 pin SOIC chip, to the right of the power connector, just above the ALS connector. It is labeled UE300.
If you know what this guy is, can send me a good picture of one, or can provide me with the numbers from the IC, I can get this mac back to life.
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Apr 2, 2010
I just bought a new Logic Board for a 1.25Ghz eMac and I've put almost everything back together after installing it until I ran into a problem. The power button cable that runs from the power button on the casing into the logic board has no connector on the Logic Board itself, now I have an old logic board that whilst being broken has a connector on it but I really don't want to have to solder the connector on for fear of breaking the logic board.
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Dec 20, 2007
I am posting this here as well as in the Logic area, to try to get some help. I am desperate, as i can't work. In Logic Pro 7, I can't click anything in the right pane of the bounce dialog box. I CAN select PCM, Mp3 etc. on the left, but get no response from the mouse when trying to change the sample rate, interleave, dithering etc. on the right. I also can't click the flip-box to select different packages in the Loop Browser. I haven't noticed this happening in other applications. DOES ANYONE READING THIS KNOW HOW I CAN GET SOME HELP FROM APPLE? I am told i can't even buy apple care because my computer is too old. I don't know what to do. Tried trashing prefs. Not running any failed audio units. Nothing new in software update. Don't really know what else to do.
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Nov 28, 2009
I was attempting to replace the hard drive in my eMac, but for instructions I HAD to follow some darn take-apart guide that said pull out the connection for the power button cord from the logic board. I didn't know that it was SOLDERED in there, and now I can't complete putting my eMac back together without doing so.
Can this be fixed without having to send it to Apple? Does it HAVE to inolve soldering, or is there an alternative? Is there a way I can temporary have my eMac power on until I get the connector fixed?
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Jan 8, 2009
I picked up a 12" PB for 160 USD today. It had a bad battery and noisy and seemingly non functional optical drive, stock configuration. Looked like someone tried to open it up and failed to put back one of the hinge screws. I believe this is causing a green line (crimp in the video cable) on the screen. My question is: I have never replaced the optical drive on one of these. I bought this for a friend whose ibook died and he has a nearly brand new dual layer ATA superdrive in it that I can replace into the Powerbook. I knew this was daunting. Then I really just looked at the ifixit steps and yeah, you have to dismantle the WHOLE computer. There are 46 steps to replace the optical drive. Has anyone attempted this? I don't understand why you have to take out the logic board to get the optical drive out? On the upside, the near dead battery is eligible for the replacement program, so Apple is sending a new 125 dollar battery. Sorry I am rambling, just freaked at how much work it is to put a new optical drive in these things. Major surgery. someone on MR said they did it before.
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Jun 9, 2009
So the cable that connects the hard drive to the logic board in my MacBook Pro (15" A1211 model) had the adhesive wear off and as a result, the tiny little hook broken off. Apple quoted me between $300 and $1250 (great range huh?) to fix it, in spite of that apparently useless little Apple Care warranty I paid $350 for and have never used. Sorry, kind of really annoyed right now. Anyway, I'm not paying that. I found a new connector for like $30. Has anyone had any luck reinstalling this part? Any tips or how-to's? Alternately, the hook is still there, and I've read forum posts about potentially soldering it back on, but there are no responses, so has anyone done that before? Any advice would be greatly appreciated.
Another issue is that my CD drive randomly stopped working. The guy told me something was probably just out of line, but they won't fix THAT because "there's a dent in the back of the computer." It's a tiny dent that has been there for over two years now, so...again, dumb. But I can't seem to get the screws off the optical drive to open it. Any suggestions for loosening really stuck screws?
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Oct 17, 2009
my machine was working fine all day. I installed a yep(the PDF management app) trial and the app locked up so I tried to quit the app. It removed itself from the dock but wouldn't disappear from the desktop. I tried to do a reboot but it got stuck so I held down the power button. I then tried to reboot and it kinda got stuck in some kind of loop and I had to unplug some peripherals and it eventually shutdown. But now it won't boot. I press the power button and it just shuts down. I tried resetting the PRAM and the SMC and neither worked. I had replaced the ram a long time ago (January of this year) and thinking maybe it was the RAM I swapped back in the old Apple RAM with the same result. I can hear the CD drive spin but I cannot I hold it down and the indicator light flashes but after a few seconds the machine shuts off.
With my battery being full I am convinced that either the logic board is dead or the hard drive crashed. I do have AppleCare and I do have an appointment tomorrow but my question is assuming the worst and the logic board is dead, is this covered under AppleCare?
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Aug 3, 2006
The logic board on my powerbook (aluminum)G4 is fried. I would like to get the data off the drive, but would like to do it myself. Will the drive plug into an external carrier rig like any other drive? I have a granite digital external firewire drive caddy rig. I assume that the mini drive in the powerbook will not plug into an enclosure that was made for a regular drive? Are there any adapters for this sort of thing?
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Aug 1, 2009
I have had some serious isues with my Macbook Pro (2.5 GHz Intel Core 2 Duo with 4 GB 667 MHz DDR2 SDRAM - Mac OS Version 10.5.7) and a Seagate FreeAgent Xtreme external hard drive. Twice in the last month I have cooked the logic board by plugging in the FW drive into the FW port on my laptop. The first time they replaced the logic board without testing my hard drive. The second time they asked me to bring in my new external hard drive.
They've checked out both the 2nd logic board and the new hard drive numerous times and say everything works fine... Should it make any difference if the external drive is plugged into a wall outlet before I connect the laptop to the external drive? Or would it make a difference if the laptop is powered up before plugging in the FW drive?
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Feb 3, 2010
My '08 Mac Pro got it's logic board replaced last week because it wasn't seeing all the RAM I had installed, and now it's not recognizing my Time Machine drive as a Time Machine drive. The drive mounts fine (internal bay 4), all the stuff is still on it, I can still read/write to other folders on the drive. When I go into Time Machine it just shows that there're no back ups. When it tries to do a backup it just says "Backup failed". I ran disc utility and repaired permissions, still no dice.
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Jun 18, 2010
MBP is not starting up or chiming - none of the resets work, been through that yesterday, not even getting to chime. I took the memory out of the MBP and it is running but having a loud bleep every few seconds. Does anyone know what this indicates? does this mean the logic board is ok but the hard drive is dead or could it still be the logic board? If this means the hard drive is dead then I could maybe buy a new one, if it means its the logic board I could recover my files from the hard drive via a hard drive enclosure.
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Jun 27, 2012
06 Macbook Pro. Replaced the Logic Board. Now the CD Drive doesn't work and there's a cd stuck in it! Not under warranty. Outside party replaced the part.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Jan 15, 2008
I was just wondering if anyone could help me with this. the iBook that I just inherited from my aunt, (She got a new MB) was working yesterday, whenever the power shut-off on it. (It has a power issue on the logic board, and if it comes unplugged it dies, even though it has a new battery.) so she went to work, and attempted to power it on, it came up, and the apple was on the screen, and the spinner came up, nad it spun for a very long time, eventually the screen flashed, and turned blue, and the spinner came again. After around 15 minutes, she was given the kernal panic screen. She held down the power button, and restarted, only to come up with the old finder face, and a question mark. I rush over with my disc's, and load up the disk utility. It was repairing the disk, and about 3/4 of the way through, it had an error. So, I rebooted, and we got an apple, and it repeated the previous situation, and gave the blue screen, followed by a kernel panic. This time I ran the hardware test, and it says that the logic board passed, but there was an issued with the harddrive.
At first disk utility could find the hard drive, and it reported it as being a 2 TB drive!!!!!!! So I got suspicous about that, and after the hardware test, the computer was reporting that there was no hard drive in the computer at all. we know for a fact that the drive was either 50, or 80Gb's, (90% sure 80) My question to you is: Is this the hard drive that has gone bad, or, is it the controller on the logicboard needing to be replaced?
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Nov 5, 2009
My iMac G5 is basically dead. Logic board failure. Apple is going to replace it by giving me a credit toward the purchase of a new iMac but that is a different story. I need to send my G5 back to them. Can I take the internal hard drive out and transfer the data to a PC and then get that data off the PC onto an external HD?
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Oct 1, 2010
To make the long story short, I am a careful computer user and I treat my computer like my baby since I am a college student studying Architecture and I spend more time and money on my computer than on books and there haven been 5 replacements on this mbp that I am using right now.
My 1st hard drive crash happened 3 weeks after I bought my mbp in April 2008. I got it replaced under warranty.
2nd hard drive crash happened little after 6 months............
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Nov 12, 2010
i had a 2006 macbook core duo that ran really nice with snow leopard, recently the logic board died so it hasn't been used for a month, i got parts from my friend and now running a 1.83ghz core 2 duo logicboard in its place. the big problem what i think is the hard drive got corrupted due to the bad logic board, when i first put the hard drive back in it wouldn't boot except into safe mode and after i repaired permissions it would boot. however it still starts up slow and os performance seems sluggish and if i run disk utility it always has permissions to fix and takes forever.
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Jan 18, 2009
Basically I believe my logic board to be fried, the evening before it was slow and then when I tried to turn it on the next morning the error message saying i need to restart it came up but it was not totally blue instead had what looked like black dead pixels everywhere. After this when I turn it on i get the power light and disk checking noise but nothing on screen its dead. I need whats on that Hard Drive but cant turn the computer on so any option? Are there any caddys out there? or any ways of this at all?
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Nov 13, 2009
I contacted apple to argue for their original quote which is $1200, the first representative couldn't get it done since he didn't have the authority, but he got me to talk with a senior advisor, after probably 1 hour arguement, she said $900 would be the bottom line. Then I mentioned i had my LB replaced last year for $310 due to the KNOWN video card issue, and most importantly there are no physical damages on on my computer back then, whcih means i'm eligible for the refund policy, also I stated an issue I posted here [URL] then she agreed to reduce the quote to $600, so what do u guys think, is it worth going for it?
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Aug 25, 2007
I have a PowerBook G4 15" 1.33GHz that up until now ran flawlessly. Today I was watching a movie on it with some friends when it randomly shutdown. Since then, it no longer turns on. The battery is fully charged and there is no problem with my AC adapter. With just the battery, nothing happens when I press the power button. When the AC adapter is plugged in and I press the power button, the optical drive spins at full speed for a few minutes and then the PowerBook shuts itself down again. I have attempted reseting pram and pmu with no success. I think it could be a dead logic board but I'm not sure. Would it be worth the money to buy a new logic board or should I just part it out?
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Apr 17, 2009
I'm somewhat new to the forums, and found a really good deal for a brand new macbook air (rev.1). I'd like to know if it is possible to replace the logic board in my macbook air with a newer, nvidia-gfx based logic board. As in, will it fit, does the same power supply run it, same peripherals (airport, keyboard, etc) work/interface with it, etc?
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Sep 9, 2009
My PowerBook G4 (Alum) died. I've had it for 4 years, taken it with me to Alaska and all over the lower 48, and have had nothing but happy experiences. I knew she was gonna go, but I was hoping she'd hold on until I could afford a MacBook. Alas, no. The problem appears to be the ability of the logic board to communicate with the hard drive. I can hear the HD spin, but even with Disk Warrior, I cannot locate it. The Mac Geniuses at my local Apple store confirmed this and gave me a shoulder to cry on. I've run Disk Warrior, Disk Utility, and tried finding it using the target disk mode - no luck.
The problem is that I've got 4 years of teaching materials, 6000 songs, and irreplaceable pictures on the HD, so I can't bring myself to just trash it. It's true that you only fail to back up you stuff once. This is my once. I've heard that with PC hard drives, you can just drop the old HD into a USB HD box and use it as an external HD. I can't afford professional data retrevial, and I want to give this option a try if it'll work with a Mac HD. Any ideas or suggestions?
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Nov 24, 2009
I like eMacs but the G5 looks sooo nice. I know I probably won't be able to use any for very long but whatever. What is the best?
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Aug 16, 2006
I listed my Dual 2GHz G5 on ebay and hope to sell it. In the event I can't, would it make a good server if I throw Mac OS X Server on it? Would a server be of any benefit since my network consists of my Mac Pro, Mac Book,a nd Xbox 360?
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Apr 9, 2009
When browsing controllers in Logic, only a few show, such as pan and main volume, but none of the rest (like effects depths, portamento etc.). Is there a setting that makes the rest appear in the list? Also, if I import a MIDI file in, it uses sounds from GarageBand, and not the quicktime MIDI sounds. Is there a way to make it take the quicktime, or other GM sounds instead of the GarageBand ones?
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