Jackhammer SCSI card pausing during boot

[trag]

YES! I got it to work finally with my Turbo 601. I found a website with "Turbo 601 eccentricities" with a cool copy of a FAX conversation between an owner of a Turbo 601 & FWB Card.

"Turbo 601 eccentricities" is one of the pages on Brinnoven's "The Unofficial Turbo 601 Site".

http://www.brinnoven.co.uk/turbo601/index.html

That was the place to be, back in the day. There's a ton of great information and experience preserved there for the Turbo601 and there was a sister-site for the PowerPro(?) -- the PPC upgrade for 68040 machines.

I now have a Mac IIci with a Turbo 601 upgrade and Jackhammer SCSI card. Phew, that thing is finicky. I should print out the configuration and stick it with my manuals so I don't have to go through this again. :approve:

The JackHammer is actually very simple, if one follows the rules for terminating SCSI properly. The rules for terminating SCSI properly are not so simple...

Adding a Turbo601 into the mix just makes configuration a nightmare. It's like a dancing bear. The wonder is not that it dances so well, but that it dances at all.

I had a Turbo601/66 way back when. I hacked it to run at ~94 MHz.

http://homepage.mac.com/schrier/dt601.html

Once I had everything working well, and had used it for a while, I sold it to some poor soul and took the money and ran as fast as I could to a refurb'ed PowerComputing Power120 (8100 clone).

There was just too much configuration hassle with the Turbo601. If one wanted a fast NuBus, it was better to get an x100 machine.

Still, the Turbo601 is a very cool piece of Mac history.

 

[Unknown_K]

Yes, the Daystar Powerpro 601 was for the 68040 machines. Even those are not worth it (unless you get the one with 1MB cache and 4 x 72 pin SIMMs) unless you absolutely need one for an AVID system.

All those stop gap upgrades are still cool to own and play with but were only realy useful to users during the brief switch from 68K to PPC where new machines cost a mint and the upgrade kept you working for a few years without having to buy a new machine. It took a while for memory prices to drop and HD speeds to get faster to show how bad a PPC chip would run in an old 68K design.

 

[olePigeon]

I lucked out in that my Turbo 601 is the 100Mhz version. It's also boxed and minty fresh. I was reading about clock chipping it, but there're only directions for the 60MHz one. Wasn't sure if I wanted to risk it.

Yeah, it's kind of pointless, but I just like the idea of hot rodding my IIci into sillyness. When I get some time and money, I'm going to try an ATX conversion on the power supply so I can also run my RadiusRocket 33 in there. Talk about a configuration nightmare. )

 

[Unknown_K]

Someday I might ATX a Q950 so that I actually have room for all the SCSI drives it can manage.