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Hardware / Re: Copper heatsink G4 mini
« Last post by Jubadub on Today at 12:23:19 AM »Maybe call it an "iSink"… after indibil’s original approach?
It isn’t pretty (yet) but the first “replicant” here is finally complete.
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Hardware / Re: Copper heatsink G4 mini
« Last post by ssp3 on Yesterday at 11:31:31 PM »"like"
"don't like" you quoting the whole @abc's post.
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Hardware / Re: Copper heatsink G4 mini
« Last post by indibil on Yesterday at 11:13:37 PM »Maybe call it an "iSink"… after indibil’s original approach?
It isn’t pretty (yet) but the first “replicant” here is finally complete.
Could use a bit of cleaning (copper dust particles, etc.) and some emery cloth smoothing of the rough fin edges.
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Mac OS 9 on Unsupported Hardware / Re: Mac OS 9 booting on: Mac mini G4 (Detailed Posts)
« Last post by Jubadub on Yesterday at 11:03:14 PM »@zefrenchtoon Thanks for the pointer!
Btw, I tried to use the Mac mini ROM with Mac OS 9.1 (System and Finder files replaced accordingly), and, it bombs during Start Up screen. Oh well, it would have been too easy otherwise.
I may try 9.2 and 9.2.1 next, but, I'm not sure I care about these so much, since I'm too happy with Mac OS 9.2.2 to try anything else, to be perfectly honest. But it would be great if people got the mini to boot 9.0.4 and 8.6 somehow.
Or, even earlier than 8.6. New World ROM Macs, with support for the separate Mac OS ROM file, got introduced with Mac OS 8.1 for the Beige PowerMac G3, so we could theoretically go as low as that. To go even lower, I believe we would have to patch up the System file of Mac OS 8.0 and lower with whatever was added to the Mac OS 8.1 System file, much like how we patch System 7.5.5 ~ Mac OS 8 System file so that they support HFS+ just like Mac OS 8.1, which @ELN pulled off in 2020.
Btw, I tried to use the Mac mini ROM with Mac OS 9.1 (System and Finder files replaced accordingly), and, it bombs during Start Up screen.
Oh well, it would have been too easy otherwise.I may try 9.2 and 9.2.1 next, but, I'm not sure I care about these so much, since I'm too happy with Mac OS 9.2.2 to try anything else, to be perfectly honest. But it would be great if people got the mini to boot 9.0.4 and 8.6 somehow.
Or, even earlier than 8.6. New World ROM Macs, with support for the separate Mac OS ROM file, got introduced with Mac OS 8.1 for the Beige PowerMac G3, so we could theoretically go as low as that. To go even lower, I believe we would have to patch up the System file of Mac OS 8.0 and lower with whatever was added to the Mac OS 8.1 System file, much like how we patch System 7.5.5 ~ Mac OS 8 System file so that they support HFS+ just like Mac OS 8.1, which @ELN pulled off in 2020.
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Development & Programming / Re: Trying to get Jabbernaut to compile in CodeWarrior 6
« Last post by Jubadub on Yesterday at 10:37:45 PM »It's great to have you here in Mac OS 9 Lives, as well, @laulandn!
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Emulation / Re: Power MachTen kicks ass. Can we compile QEMU for it?
« Last post by Jubadub on Yesterday at 10:36:11 PM »But...talking about it just now I had an idea...it might be possible to build a cross compiler on another host...or something like that.
Not a bad idea! In fact, how did Tenon compile GCC 2.8.1 for Power MachTen in the first place, despite all the unfinished memory management in the PowerPC version of MachTen (Power MachTen)?
Cross-compilation might be a VERY good answer!
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CPU Upgrades / Re: The 1.6ghz Sonnet Encore MDX overclocking project
« Last post by Jubadub on Yesterday at 10:25:18 PM »@aBc Thanks for those links!
I really doubt House of Moth's claim on graphite thermal pads beating Thermal Grizzly Kryonaut (let alone the superior Kryonaut Extreme), but I can't say I tried them personally, so... *shrug* Who knows.
@GaryN That's a good point with regards to the processor height difference in the MDX, in terms of getting the copper heatsink to do its job properly. However, you should still be able to use it properly for both CPUs if you add copper shims (one or multiple). Using 7448 and 7457 processors, and/or interposer boards, instead of the usual 7447 or 7455 with MDX and stock daughtercards also leads to those kinds of height concerns. The opposite is also true: Washers/spacers also help with when the CPUs are too high for the heatsink. Quoting one of my linked comments:
If you ever give this a try, let us know how it worked out with your MDX card.
I really doubt House of Moth's claim on graphite thermal pads beating Thermal Grizzly Kryonaut (let alone the superior Kryonaut Extreme), but I can't say I tried them personally, so... *shrug* Who knows.
@GaryN That's a good point with regards to the processor height difference in the MDX, in terms of getting the copper heatsink to do its job properly. However, you should still be able to use it properly for both CPUs if you add copper shims (one or multiple). Using 7448 and 7457 processors, and/or interposer boards, instead of the usual 7447 or 7455 with MDX and stock daughtercards also leads to those kinds of height concerns. The opposite is also true: Washers/spacers also help with when the CPUs are too high for the heatsink. Quoting one of my linked comments:
Quote
If using any of the 3 stock heatsinks, use copper shim(s) for the 7457 to take into account its slightly lower height compared to the stock 7455, or, in the case of the 7448 that has additional height due to the interposer board, use washers/spacers between the posts and heatsink to raise the height at which the heatsink stands.
If you ever give this a try, let us know how it worked out with your MDX card.
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Hardware / Re: Copper heatsink G4 mini
« Last post by ssp3 on Yesterday at 10:07:47 PM »Albeit of different design (pipes etc), maybe this test can give a hint regarding copper vs. aluminium temperature differences.
https://gamersnexus.net/guides/1975-aluminum-vs-copper-coldplate-benchmark-liquid-coolers
https://gamersnexus.net/guides/1975-aluminum-vs-copper-coldplate-benchmark-liquid-coolers
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Hardware / Re: Copper heatsink G4 mini
« Last post by Jubadub on Yesterday at 10:01:46 PM »Perhaps you could delegate this work to someone affordable, so that they make 20000 of these. Then you sell and ship worldwide! 
I would totally buy some of these! If I was rich, at least 5 units!
Copper itself AFAIK is quite costly, though, even at this size. Then there's the time cost, expertise cost, and manufacturing cost (materials, electricity etc.). So... This would understandably have to be sold for a "respectable" price in order for the effort to be worth it!
Just saying. New business startup? "Mac mini G4 Industries Ltd." or, maybe to avoid an overly-protective Apple, "Fruit mini G4 Industries Ltd.".
I would totally buy some of these! If I was rich, at least 5 units!Copper itself AFAIK is quite costly, though, even at this size. Then there's the time cost, expertise cost, and manufacturing cost (materials, electricity etc.). So... This would understandably have to be sold for a "respectable" price in order for the effort to be worth it!
Just saying.
New business startup? "Mac mini G4 Industries Ltd." or, maybe to avoid an overly-protective Apple, "Fruit mini G4 Industries Ltd.".10
Hardware / Re: Copper heatsink G4 mini
« Last post by GaryN on Yesterday at 05:20:49 PM »Heck, I'll buy one for that kind of money and I don't even own a Mini!