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MultiFinder17

macrumors 68030
Original poster
Jan 8, 2008
2,807
2,191
Tampa, Florida
I've had a beater iBook G4 around for years now. It's a 14" 1.0GHz late 2003 machine that I picked out of the recycle pile at the computer shop I used to work for. It was well-used; one of its USB ports is missing (someone ripped it out), it has a crack in the front left corner, several of the key caps are rubbed off, it's always had dirt and grime in all the little nooks and crannies, and it's missing all of its feet. I've kept it around as something to noodle around on. Today I decided to give it some well-earned TLC.

My biggest goals were a fresh load of OS X, general cleanup, repad/paste, and replace the missing USB port. I spent much of this morning tearing it down, soldering, pasting, and cleaning, and the patient survived and is now in much better shape than ever! I've attached some pics of the process today. If you've never had the "pleasure" of working deep inside an iBook, it's something to cross off your bucket list. It's off mine. This thing made my 12" PowerBook G4 seem like a pleasure to disassemble :p

First, here's the view from the outside. You can see that the left USB port is entirely missing, and the right one is bent up a bit.
IMG_0265.jpeg

And the view inside! The port was just ripped out; all the pins are still soldered in to their mounts.
IMG_0267.jpeg


While disassembling I managed to break off the microphone holster from the logic board. Oops.
IMG_0268.jpeg


Ready to rock! My soldering station isn't the most professional, nor do I pretend to be a pro at this, but I'm good enough at it for fairly delicate hobby work.
IMG_0270.jpeg


Old solder won't come out? When in doubt, drench it in flux! Works every time.
IMG_0271.jpeg


Managed to reattach the Microphone holster. (Spoilers - the mic worked fine once I got the machine back together!)
IMG_0272.jpeg


Quick test fit of the new USB port. Important to note is that most replacement USB ports you'll find have those metal flares around the outside edge. These prevent it from going in the hole in the I/O shield on the iBook.
IMG_0273.jpeg


I snipped off the sides and bent the top and bottom outwards flat so that they would go in the hole.
IMG_0274.jpeg


Quick test fit with the I/O shield; it fits perfectly fine!
IMG_0276.jpeg


Got the new port soldered in and starting to reassemble the iBook. The new port doesn't look 100% original, but it sure looks better than a black hole there.
IMG_0277.jpeg
 
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With the heatsink off, I could check the pads. The CPU pad was getting dry, but the other pads were plenty squishy and pliable, so I left them be. I replaced the CPU pad with some fresh thermal paste instead of a pad, since that's the only heatsink that screws down to press on the chip.
IMG_0279.jpegIMG_0280.jpeg


While testing it to make sure that the core parts were working and plugged in, I may have tapped the underside of the DC in board to the frame of the laptop. Got some nice sparks and pops and scorched one of the components, but it still works fine!
IMG_0281.jpeg


All reassembled, and it's looking much better! While I had the bottom pan off, I cleaned in all the nooks and crannies and it looks and feels 1000x better. And here's the new I/O lineup, now with two USB ports! I managed to straighten out the other port a little as well. Booted it up, and both work beautifully.
IMG_0283.jpeg


Finally, I replaced the feet with little felt pads. They work well enough!
IMG_0284.jpeg


Next step is a fresh load; debating between Tiger or Leopard, leaning towards Leopard. I removed the old 512MB stick that was in here and maxed it out at 1.12GB, so it should run well enough.

I love restoring these old machines and giving them a little TLC. Here's to many more happy years with my little (big) beater iBook!
61074305673__538051FA-8789-4672-BBF2-7F3C6C8B44D1.jpg
 
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Is your soldering station a real hakko? They are pretty good in my book. I use a mid-range weller wes51 and it work well. You did a fantastic job on this ibook!
 
Is your soldering station a real hakko? They are pretty good in my book. I use a mid-range weller wes51 and it work well. You did a fantastic job on this ibook!
Yup! I love that thing. I convinced my old boss at the computer shop to get it back when I did board repairs there (mostly broken DC Jacks) and ended up buying it off him last year when the shop closed. Hot swappable tips, room temp to 800F in about 10 seconds.

And thank you! The new USB port is holding up well, and the fan is coming on less often with the new paste. I’m in the middle of setting up Leopard.
 
I've got the software situation pretty much set up on this machine. I quite like the keyboard on it, so I'm planning on using it for a bit of creative writing as well as getting more involved in programming again. I'm a middle school teacher, so I've been working from home with plenty of spare time recently, so having something to mess around with coding again will be fun!

Posting this from the iBook :)

Picture 1.png
 
Getting the iBook spruced up inspired me to give another PowerPC machine a little TLC - my trusty little 12" PowerBook! This 1.5GHz monster got me through college, and I figured that in honor of its 15th birthday, I'd give it a little internal rework.

The machine itself is in much better physical shape both internally and externally than the iBook. It has a repaired dent on the side of the battery compartment from me rushing to class one day, but other than that it's in fantastic shape overall. A few years back I swapped the original 80GB HDD for a 32GB KingSpec SSD and was never super happy with it due to the limited space. I decided to go back to a HDD, and grabbed a 160GB from an old dead first-gen Apple TV!

Overall goals are to swap in the new HDD and redo the thermals.


First things first, opening it up! After the iBook the day before, the PowerBook seemed like a pleasure to open. Got the heatsink off; can see the goop from the old pads along with crust on the CPU. The blue pads are starting to dry out a bit, and the CPU pad is a rock. My plan is to replace the two pads and replace the CPU pad with paste.
IMG_0291.jpegIMG_0292.jpeg


I have a few large sheets of thermal pads, so I cut some new ones to shape using the old ones as patterns. I also cleaned off the CPU sink; getting that rock-like pad off took a lot of scraping and alcohol, but it finally did come clean!
IMG_0293.jpegIMG_0295.jpeg


One thing I'm always concerned about when replacing a pad with paste is the contact that's being made between the die and the copper surface of the heatsink. I always do a test fitting; I put paste on the CPU, mount the heatsink, tighten it down, then remove it to see how well the paste spread. In this case, it spread pretty darn well, so I felt confident in my choice to replace the pad with paste.
IMG_0296.jpegIMG_0297.jpeg


Because PowerPC CPUs are pretty (and really, who here doesn't appreciate a little bit of computer internals porn), have a glamor shot of the MC7447B :)
IMG_0298.jpeg
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With the CPU and heatsink sorted, next step was the new HDD. Here's the SSD that I put in years ago; it was quiet, sure, but no faster than the factory HDD and significantly smaller, small enough to be a regular annoyance. Time to go!
IMG_0299.jpeg


And in goes a 160GB 5400RPM drive from an Apple TV! I chose this particular drive for two reasons:
1. Its capacity. 160GB! So much room for activities! That'll let me dual-boot between Leopard and Tiger with plenty of breathing room for both.
2. It's sound, or lack thereof. This is one of the quietest hard drives I've ever encountered.
In it goes! Before tearing the laptop apart, I cloned the SSD to this HDD, so it should just boot once I get things back together.
IMG_0300.jpeg


Let's get the heatsink reattached properly and take a gander at what's been done so far. You can see the edges of the new pads poking out like the originals did, and the new HDD in place.
IMG_0303.jpeg


Throw a keyboard on top, plug it in, and let's see if I broke anything major! Boots up just fine, everything working :)
IMG_0301.jpeg


And here we are, reassembled! I love using this little PowerBook; it's a fantastic notebook, and one that I plan on keeping running as long as I possibly can! It has served me well for many, many years now.
IMG_0304.jpeg
 
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Hey OP, can you please help me? I have a PB G4 12 that has the studs on either side of the CPU off. Can you fix them? If you can help me, email me at arkieboy72472 at yahoo dot com or replay please. I need someone who can help me fix this.
 
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I've had a beater iBook G4 around for years now. It's a 14" 1.0GHz late 2003 machine that I picked out of the recycle pile at the computer shop I used to work for. It was well-used; one of its USB ports is missing (someone ripped it out), it has a crack in the front left corner, several of the key caps are rubbed off, it's always had dirt and grime in all the little nooks and crannies, and it's missing all of its feet. I've kept it around as something to noodle around on. Today I decided to give it some well-earned TLC.

My biggest goals were a fresh load of OS X, general cleanup, repad/paste, and replace the missing USB port. I spent much of this morning tearing it down, soldering, pasting, and cleaning, and the patient survived and is now in much better shape than ever! I've attached some pics of the process today. If you've never had the "pleasure" of working deep inside an iBook, it's something to cross off your bucket list. It's off mine. This thing made my 12" PowerBook G4 seem like a pleasure to disassemble :p

First, here's the view from the outside. You can see that the left USB port is entirely missing, and the right one is bent up a bit.
View attachment 913531

And the view inside! The port was just ripped out; all the pins are still soldered in to their mounts.
View attachment 913532


While disassembling I managed to break off the microphone holster from the logic board. Oops.
View attachment 913533


Ready to rock! My soldering station isn't the most professional, nor do I pretend to be a pro at this, but I'm good enough at it for fairly delicate hobby work.
View attachment 913534


Old solder won't come out? When in doubt, drench it in flux! Works every time.
View attachment 913535


Managed to reattach the Microphone holster. (Spoilers - the mic worked fine once I got the machine back together!)
View attachment 913536


Quick test fit of the new USB port. Important to note is that most replacement USB ports you'll find have those metal flares around the outside edge. These prevent it from going in the hole in the I/O shield on the iBook.
View attachment 913537


I snipped off the sides and bent the top and bottom outwards flat so that they would go in the hole.
View attachment 913538


Quick test fit with the I/O shield; it fits perfectly fine!
View attachment 913539


Got the new port soldered in and starting to reassemble the iBook. The new port doesn't look 100% original, but it sure looks better than a black hole there.
View attachment 913540

That’s awesome. I have a broken iBook that looks sad, thanks for posting what you did.

I’ll do something similar
 
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