Listing of ReMix Logic Board Projects?

[Trash80toHP_Mini]

Was wondering about the 840AV, which got me to wondering . . .

If anyone has links to the development threads for Macs that have been reverse engineered or are in the process at present, this'd be the place to put 'em!

 

[Daniël]

For availability and redundancy sake, the SE and Classic Reloaded projects have been mirrored on my site, compliant under the CC-BY-NC-SA 4.0 license, should anyone be in need of replacement boards for their project Macs: https://techandmusic.nl/tidbits/macresources/index.html

I'll probably add other such board projects that are licensed to allow redistribution when time permits.

 

[eharmon]

I've been maintaining a list of these (and others) I need to get around publishing. Here's the logic board ones I know of:

• 128k - https://github.com/RichCini/MacRedux
• Plus - MacPlus-Reloaded
• SE - https://github.com/kr239/Macintosh-SE-Reloaded - Logic Board - Macintosh SE Reloaded - Macintosh SE Reloaded Logic Board
• SE/30 - https://github.com/TheRealBolle/SE30 - https://68kmla.org/bb/index.php?threads/macintosh-se-30-logicboard-recreation-thread-revival.39485/
• Classic - Macintosh-Classic-Reloaded - https://tinkerdifferent.com/threads/logic-board-macintosh-classic-reloaded.26/ - Macintosh Classic Reloaded Logic Board
• IIci - https://github.com/max234252/Macintosh-IIci-Reloaded - https://68kmla.org/bb/index.php?threads/macintosh-iici-logicboard-recreation.46334/
• IIcx- GitHub - max234252/MacIIcx_Reloaded: 1:1 Reproduction of the Mac IIcx PCB - https://tinkerdifferent.com/threads/reverse-engineering-the-macintosh-iicx-logicboard.905/
• IIfx - GitHub - TheRealBolle/IIfx: Recreation of the Macintosh IIfx logicboard - https://68kmla.org/bb/index.php?threads/macintosh-iifx-logicboard-recreation.46709/
• LC - MacLC-Reloaded - Reverse Engineering the Macintosh LC Logicboard
• LC II - MacLCII_Reloaded
• LC III - max234252/Macintosh_LCIII-Reloaded - https://tinkerdifferent.com/threads/reverse-engineering-the-macintosh-lc-iii-logicboard.35/

Quality/completeness varies, so your mileage may vary.

 

[Bolle]

Here's the logic board ones I know of:

Shamelessly adding my LC475 reloaded board as well as my latest piece of insanity: Quadra 950

The files for the Q950 will be available soon, the first prototype board has been through hours of testing and passed all tests I could throw at it so far.

 

[croissantking]

Was wondering about the 840AV, which got me to wondering . . .

I would love to see one for an 840AV. We could save a lot of capacitor-destroyed boards!

 

[Trash80toHP_Mini]

Amazing progress has been made in terms of complexity wondering where we'll be within the next ten years?

Anxiously awaiting a hybrid Q630 leading into PPC versions of the platform. Really needs provision for more memory and pathway to install a great VidCard for both platforms.

 

[croissantking]

Shamelessly adding my LC475 reloaded board as well as my latest piece of insanity: Quadra 950

The files for the Q950 will be available soon, the first prototype board has been through hours of testing and passed all tests I could throw at it so far.

Thank for you for sharing these with the community, Bolle. I don’t take it for granted.

 

[Callan]

I would love to see one for an 840AV. We could save a lot of capacitor-destroyed boards!

Amen to this brother... I have had so many problems with these boards! Especially the brown mask ones.

 

[jmacz]

For these projects, is there a lot of value trying to get them as 1:1 as possible, vs making them easier to build, or just whatever provides a working solution? Obviously physical dimensions and basic locations are important, but for example if the original used through hole passives, how valued is it to also use through hole passives vs SMD which might save space for something else, etc? How much value is there for routing traces close to the original?

Asking as one of these days (to learn/for fun) I might want to try designing a simple one. My 512K board is trashed so thought it might be fun to attempt to make one.

 

[croissantking]

For these projects, is there a lot of value trying to get them as 1:1 as possible, vs making them easier to build, or just whatever provides a working solution? Obviously physical dimensions and basic locations are important, but for example if the original used through hole passives, how valued is it to also use through hole passives vs SMD which might save space for something else, etc? How much value is there for routing traces close to the original?

Asking as one of these days (to learn/for fun) I might want to try designing a simple one. My 512K board is trashed so thought it might be fun to attempt to make one.

For passives that you won’t be harvesting from an original board, it really doesn’t matter from a functional perspective if different footprints are used.

The SE/30 Reloaded was done right with regards to trace routing - it was redesigned to fit onto four layers, making production cheaper. However, the board still has all of the aesthetic appeal of the original.

 

[cheesestraws]

For these projects, is there a lot of value trying to get them as 1:1 as possible, vs making them easier to build, or just whatever provides a working solution? Obviously physical dimensions and basic locations are important, but for example if the original used through hole passives, how valued is it to also use through hole passives vs SMD which might save space for something else, etc? How much value is there for routing traces close to the original?

Asking as one of these days (to learn/for fun) I might want to try designing a simple one. My 512K board is trashed so thought it might be fun to attempt to make one.

First of all, if you're doing the work, you get to choose what you value in the result! My opinions are (but you are by no means obliged to take them remotely seriously) that ideally the process of building the board would contribute to understanding how the computer works, rather than just produce "something that works for some reason", and that the end result should be accessible to as many people as possible to build. A remote third place is "doesn't look weird as hell".

But there are valid arguments for other approaches too.

 

[finkmac]

For these projects, is there a lot of value trying to get them as 1:1 as possible, vs making them easier to build, or just whatever provides a working solution? Obviously physical dimensions and basic locations are important, but for example if the original used through hole passives, how valued is it to also use through hole passives vs SMD which might save space for something else, etc? How much value is there for routing traces close to the original?

Asking as one of these days (to learn/for fun) I might want to try designing a simple one. My 512K board is trashed so thought it might be fun to attempt to make one.

it's a tradeoff i'd guess. a close to 1:1 layout ensures proper fit, and also allows you to use pictures of original boards as assembly references.
but i think quality of life improvements are a good idea.

 

[Realitystorm]

Shamelessly adding my LC475 reloaded board as well as my latest piece of insanity: Quadra 950

The files for the Q950 will be available soon, the first prototype board has been through hours of testing and passed all tests I could throw at it so far.

Is there any difference in the max speed you can overclock the CPU for your LC475 reloaded board vs the original?

 

[Realitystorm]

I've been maintaining a list of these (and others) I need to get around publishing.

I've been thinking of adding a similar list to my site similar to my page on modern storage options. I also need to update my list of accelerators to include the "modern" versions create by @Bolle and others.

 

[Trash80toHP_Mini]

Thanks much for all the input, gang, very helpful. One more in the works: @max1zzz is reshaping ITXPlus.

Obligatory Tangent Time:

One day I'll get around to building the SE/30 Remix with my dead board, but not a purist about these things whatsoever. I'm a huge fan of @max1zzz reshaping of ITXPlus. Given advances in printing tech, I'd love to see some Remix boards re-tailored for creating things like FrogDesign Macintosh prototypes.

I could see something like Jonathan sitting to the left of my main workstation's display. A cloned Radius FPD card's output scaled to fit in the lower left corner as if the actual Display were sitting next to it. Lots of room for KVM, I/O ports and removable media for both platforms.



Nice spot to tuck away the KBD for both. TAM be Damned!


edit: moderately priced 2-4K or 1440p displays got window in window features for this yet?

 

[qubitz]

I wonder what the chances are of some unobtainable machines like a Daystar Genesis MP being reloaded.

 

[finkmac]

daystar genesis mp uses a powermac 9500 logic board

 

[qubitz]

daystar genesis mp uses a powermac 9500 logic board

Oh so what we really want is some cloned CPU cards?

 

[cheesestraws]

I wonder what the chances are of some unobtainable machines like a Daystar Genesis MP being reloaded.

daystar genesis mp uses a powermac 9500 logic board

Yeah, the Genesis MP is as near as dammit a 9500. The logic board isn't quite identical; mine at least has different silkscreening and apparently some later ones had some changes that broke BeOS - but nothing major, you can drop a 9500 board into an MP and it'll work (my spare board is just a 9500 board).

Oh so what we really want is some cloned CPU cards?

If you want a reloaded MP, yeah.

 

[qubitz]

If you want a reloaded MP, yeah.

I've got a dual 66mhz BeBox and a dual 133mhz BeBox but what I REALLY want is quad 200+mhz!