PPC PowerBook G4 / Mac mini disk image compatibility

[Snial]

So, a quick question: the screw thread on my PowerBook G4 12" is threaded, preventing me from screwing down the heatsink. However, I have a 320GB HD running Tiger / Leopard which I could stick in a Mac mini G4 until I get the PowerBook G4 sorted out (though I don't know how). Will it boot OK (i.e. does a Mac OS X install model-specific drivers and optimisations or is it all generic by the time we get to Mac OS X 10.5)?

 

[Phipli]

So, a quick question: the screw thread on my PowerBook G4 12" is threaded, preventing me from screwing down the heatsink.

Do you mean stripped? I don't quite follow. "Threaded" means has a thread, which is what you expect of a screw.

Stripped means the thread tore off.

 

[Snial]

Do you mean stripped? I don't quite follow. "Threaded" means has a thread, which is what you expect of a screw.

Stripped means the thread tore off.

Thanks for the reply. Yes, I mean stripped - well, it still has a thread, but it doesn't screw tightly, whereas the nuts (and they're weird nuts) do screw tightly onto the other screw. The screws are soldered onto the motherboard at the base. I heard at one point that the solder can 'break' and they can start spinning, but I don't believe that's case here, because I put some red marker pen on one half of the top of the screw and when I try to screw it down, it doesn't rotate. So, I figured that it must be stripped.

 

[Phipli]

The screws are soldered onto the motherboard at the base.

Since we're covering nomenclature, a threaded bar fixed to the part would be called a "stud". Curse my family of engineers

The screws are soldered onto the motherboard at the base. I heard at one point that the solder can 'break' and they can start spinning, but I don't believe that's case here, because I put some red marker pen on one half of the top of the screw and when I try to screw it down, it doesn't rotate. So, I figured that it must be stripped.

Do you have some close-up photos. It should be clearly visible if they're stripped.

Silly question, is there any chance you mixed up the nuts?

 

[Snial]

Since we're covering nomenclature, a threaded bar fixed to the part would be called a "stud". Curse my family of engineers

It's OK, happy to be educated - whether I'll remember it is a different matter!

Do you have some close-up photos. It should be clearly visible if they're stripped.

LHS one is bad, RHS is OK. This was as focussed as I could get.

Silly question, is there any chance you mixed up the nuts?

I thought both of the nuts were the same?


It's a 'crosshead' nut in that it screws down on the other side. Actually, I'm not sure where the other one is. The nut screws down on the LHS screw, but then spins. On the RHS it screws tightly. It's an M2 thread.

-cheers from Julz

 

[Phipli]

LHS one is bad, RHS is OK. This was as focussed as I could get.

I can't see the threads sorry, if you take the photo in sunlight, and clean the lens on your phone first using IPA it will help. Is there a macro mode? If not, do you have a magnifying glass to take the photo through? It should be possible to get a better picture. This is with my phone on a ~3mm thread :

 

[Snial]

I can't see the threads sorry, if you take the photo in sunlight, and clean the lens on your phone first using IPA it will help. Is there a macro mode? If not, do you have a magnifying glass to take the photo through? It should be possible to get a better picture. This is with my phone on a ~3mm thread :

Thanks. I didn't have time to provide you with another photo today, but I'll do that as soon as I can!

-cheers from Julz

 

[Snial]

I can't see the threads sorry, if you take the photo in sunlight, and clean the lens on your phone first using IPA it will help. Is there a macro mode? If not, do you have a magnifying glass to take the photo through? It should be possible to get a better picture. This is with my phone on a ~3mm thread :

Aaaah, it's taken me a week to get around to taking a better photo.


Is this good enough? You can see there's some damage at the top of the screw thread. Those photos were taken using my wife's iPhone. Here's a few using my Celestron Digital Microscope:



Front, then from RHS.



This is the other screw

-cheers from Julz