Finished restoration of Macintosh 512k with custom SCSI

[olePigeon]

I finally finished a Macintosh 512k with a completely custom SCSI installation.  I took a generic SCSI upgrade and made a custom SCSI cable.  I crimped an additional 25 pin internal connector about 1/3 of the way along the SCSI cable.

After that I designed and printed out a custom 3D printed bracket so I could attach a SCSI2SD card to the floppy drive carriage.  Because it's such low power, I just soldered an additional power cable to the 5V line on the motherboard.

Some Retr0Briting, and I have a restored and completely custom 512k.

This one is up on Craigslist, and if it doesn't sell there, will be up on eBay next week.

The SCSI2SD is nuts.  The machine boots in under 5 seconds. :lol:

 

[Elfen]

Excellent work there!

 

[SE30_Neal]

Nice job, wow does boot quickly

 

[uniserver]

sick ness how much do you want for it... I like it a lot.

 

[billymade]

Wow, with that spec, restoration quality and upgrades; you could sell these restored macs online!

 

[olePigeon]

If anyone is interested, just throw me a PM.  This 512k was apart of that huge lot that CC, jose, and I picked up (with help from Mori512k).  It has a few nicks and scratches, but after the plastic is brightened, they're hidden pretty well.

 

[uniserver]

it looks like a nice machine man.

 

[SE30_Neal]

Does every scsi to sd card boot up that quickly on all vintage macs?

 

[Paralel]

Depends on the OS and what you extensions you are running, etc... My Classic II takes about 30 seconds with 7.1.1 and about 8 extensions.

 

[BadGoldEagle]

Wow the Classic II is THAT slow?

My SE/30, running 7.5.1 with about 8 extensions also takes about 35 secs to boot, from its original HD!

And it's all original!

I guess it depends on RAM, and on the extensions themselves... 

Very nice hack though.

I guess that's a SCSI1 board in there but are you getting the proper figures even with a 512k? Is it really faster than the BMOW Floppy emulator?

Anyway, 6 seconds is VERY impressive.

Good job ole!

 

[olePigeon]

Yeah, SCSI 1.  I haven't tried booting off a Floppy Emu yet, but I'd imagine it's faster.  SCSI 1 would be faster than the floppy port.

This is running System 3, so no extensions or control panels.  It fits on a 400k floppy with room to spare for applications.

 

[Elfen]

Wow the Classic II is THAT slow?

My SE/30, running 7.5.1 with about 8 extensions also takes about 35 secs to boot, from its original HD!

And it's all original!

I guess it depends on RAM, and on the extensions themselves... 

ATM (Adobe Type Font Manager) extension can take a lot of time because after it loads up, it looks at all the fonts in the system folder and elsewhere to do what ever it is it has to do.... That alone can take a minute or two alone to do. And some QuickTime Extensions are notorious for long delays after their icons pop up.

 

[olePigeon]

The Fujitsu MO extension can take a while on 68k machines as it attempts to scan the entire SCSI BUS.

 

[trag]

Very cool. Will it play Megaroids? Can't think of any reason it wouldn't, but Megaroids doesn't seem to run on anything past a 512, not even a 512 with a memory upgrade.

 

[olePigeon]

Haven't tried.

 

[Paralel]

Megaroids sounds like a serious medical condition.

 

[SE30_Neal]

Haha yes it does