Bolles finds

[Franklinstein]

Dove was a pretty prolific producer of Mac enhancements. Normally those just clip down onto the stock processor. Not the greatest design in the world; they were sensitive to shock and prone to corrosion at the processor pins. Maybe slather on some electronics-grade corrosion inhibitor before installing.

 

[Bolle]

Normally those just clip down onto the stock processor.

That's what I figured. Missing that clip though, so have to solder it down somehow.

 

[bibilit]

Probably a Killy Clip was provided at some point.
 

 

[Franklinstein]

If the adapter is gone and you don't mind a permanent mod, there isn't anything that would keep you from removing the 68000 and installing a socket or directly soldering the card into place. I'd go with the socket, myself.

 

[Bolle]

Went for one of the spare SE boards to test if this thing actually works at all before I solder a socket to my only Plus board:





Works like a charm. Cool thing about using it in the SE is that the expansion slot stays unoccupied... :evil:

So I might as well go full sandwich on that one and keep the Plus stock for now (or move my other SE upgrade into the Plus, it has mounting points for a 68000 clip on socket type thing as well)



It does work, but wont fit the case that way. Going to have to get a right angle plug for the PDS and use a modern SE chassis with the SE/30 style expansion card cutout.

 

[Trash80toHP_Mini]

Sweetness! You are definitely a madman with mad skills, if not entirely insane my friend. :approve:

Question came up recently as to whether these upgrades can run without the the 68000 on the logic board, similar to the way the SE/30 runs with an empty CPU socket when the PowerCache it installed. WAG would be that the INIT/Driver needs to run on the Mac's CPU at startup to enable the upgrade to function, but  .  .  .  :huh:

 

[CC_333]

Well, if it is capable of intercepting and issuing the proper commands on the CPU bus, it seems logical to assume that whatever computer you put it in (provided it's compatible) should work fine with its stock CPU removed.

Such would seem to be true, at least in this case.

c

 

[Trash80toHP_Mini]

Bolle soldered headers to the SE's 68000 to test the board, so that's not been proven to be the case so far.

The PDS PowerCache yanks a line to disable the native 68030 when both come on line. The socketed version doesn't need to do that. Both are the processor type the ROMs are set up to support. 68030 in the 68000 socket is not necessarily the same case even if it has a the equivalent of CPUDIS or the like. The ROM may need to be patched to support the newer processor  .  .  .  or not.

Waiting to see what the Wizard of Wetzlar has to say about it.

 

[Trash80toHP_Mini]

View attachment 25641

It does work, but wont fit the case that way. Going to have to get a right angle plug for the PDS and use a modern SE chassis with the SE/30 style expansion card cutout. 

SE's the perfect place for that stack if you have an extra chassis from any compact. You can almost entirely remove the floorboard and still keep it functional. I've already done that, but to build an AtomicZipMacPlus IIRC.

Nibble away what you need to for the vertical slot and your stack, Then build a frame to install the FDD in the upper slot. That clears all kinds of cubic for the Pagoda and can be done in a config enhancing original structural integrity.

 

[Trash80toHP_Mini]

 

[Bolle]

Nah, I am more comfortable with the soldering iron than with the hacksaw







030 and ethernet in a Mac SE -> Mission accomplished.

 

[Trash80toHP_Mini]

Very nice. most elegant. I misunderstood your fitment issue. Sorry about posting that tangential booboo pic.

What's the story on removal of the 68000 when using an accelerator? Can the 68030 run in 68000 CPU mode  to POST at startup and bootstrap its own drivers/whatever need s to be done?

 

[trag]

If you need to install additional headers on 68000 chips for the installation of old upgrades, get a couple of 32 pin header strips and a 64 pin DIP socket.   Insert the strips in the 64 pin socket.     The turn the assembly upside down (socket on top, strips on bottom) and slide over the target 68000 so that each header pin is pushing against a CPU pin.   

Solder the corner header pins to the CPU pins.    Solder the rest of the pins.   Remove the 64 pin socket.  It was jsut there to hold the header strips in place correctly.

Apologies if this was already obvious.   Back when these upgrades shipped, they often came with both a Killy Clip and a header strip/socket assembly with instructions on how to use either one.    The Killy Clip was easier.  The soldered header strips were more reliable.

 

[Bolle]

Found this 50€ SE/30 on eBay and the breakout panel on the back screamed Asante NIC.

It came with an Asante NIC indeed but one I have not yet seen before.

It does not have the PDS passthrough one would expect to see on there:



The SE/30 itself is in decent condition. Some yellowing, no battery disaster, no heavy burnin on the crt, some corrosion due to caps.

Seller said it doesn't work - I didn't even try it yet. Got the caps off the board and gave it a run in the dishwasher.

I'll get new caps on there and see if it's good to go already afterwards. It might not - a few vias look like they might have been eaten away by cap goo.

Still a steal at that price even if it needs some work. The bucket suggests it once was an SE that has been upgraded because it has the SE/30 label put over the original SE one.

Soon Gotta find a new way to stack those SE/30s to squeeze some more of them into the limited storage space I have...

 

[ArmorAlley]

View attachment 17716

This is just the bizarrest thing I have seen in quite a while. The external zip-drive gives it a most surreal quality.

 

[Bolle]

Snatched a IIvx from eBay that had a sticker that caught my attention:



Seller said there was a PowerPC upgrade in there and indeed it came with a Turbo 601:



Card and Mac work. Mac came with 16MB RAM, VRAM slots filled as well as a 500MB harddrive.

The Turbo 601 is a 66MHz one. Gotta do some spelunking on the ROMs on there and see what version I got there and what kind of patches it has applied. I am also curious to see if it works in the IIci and IIsi.

On a sidenote the logicboard was a prime example for caps that just started to leak:



Only 7 47uF SMD caps and two through holes on there so easy to recap. Already gave the board a run in the washer.

 

[omidimo]

I am also curious to see if it works in the IIci and IIsi.

It works in the Iici as is, but the IIsi had a special single slot adapter (no PDS port). I think it was due to power or something like that.

 

[Bolle]

I have an adapter for the IIsi of course

The T601 was supposed to have different part numbers and ROM revisions depending on what Mac it was made for, that’s what makes me curious.

 

[trag]

I think that SE/30 NIC is meant for a IIsi or IIsi/SE/30.   The SE/30 would never have a use for an FPU socket.  That might explain the lack of a PDS pass through.

There is some discussion on "The Unofficial Turbo601 Home page" about using the Turbo601 in a IIvx.  There was some kind of video problem, that led to Daystar issuing a special ROM for the card, IIRC.   The Unofficial Turbo601 Home Page went down a while back, but I think  it is archived, or possibly mirrored.

https://web.archive.org/web/20040415145546/http://www.brinnoven.co.uk/turbo601/miscinfo.html#anchor475621

If you ever have the heat sink off, would you post the CPU's rated speed?

 

[Bolle]

It’s a 66MHz part... first thing I checked.

I have a spare 100MHz chip, not sure if I should attempt the swap though. That’s some damn fine pitch right there.

It seems to have the 256 color patch as it did work just fine at 640*480@16bit color with the onboard video.