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Renegade
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I hate flea markets, unlike my children and their mother. But this morning I was well advised to go with them.
I found this nice PowerBook 180c for 30€. Even if it's dead, it would still be a bargain.
Renegade
As long as we're in the mood of trying to save '040s, do you think this one is salvageable?

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Renegade
Renegade
Comes from a battery-bombed Quadra 610.
I was thinking that by cutting off all the pins and hoping that the rust could be removed, the chip could be modded into some kind of BGA-ish that could be placed on a custom adapter PCB which would fit into a 68040 socket.
A lot of effort for a less than guaranteed result, eh?
croissantking
croissantking
croissantking
This shutdown dialog under System 7.1 is particular to the 840AV. Normally, nothing happens when you press the power key under 7.1. It’s a customisation built into this machine’s system enabler.

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Renegade
Renegade
it seems to me that many enablers implement this functionality under 7.1
croissantking
croissantking
It is an ugly dialog box for sure! Probably made by an engineer not a designer. Still, interesting to see the progression towards the 7.5+ shutdown box we all know and love
croissantking
I’m hoping to save this 040 chip, soldered to one of @zigzagjoe’s QFP2PGA boards. I ground two corners with a Dremel to be able to attach repair wires to the missing pins, which were lost to corrosion. Might give you some ideas for yours @jmacz

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jmacz
jmacz
Nice, haven’t played with the chips yet but will try to save that one with the broken pin.
Joopmac
Joopmac
cool, what about this adapter? is this an accelerator or just adapter? looks sweet.. is there a topic?
croissantking
croissantking
@Joopmac its an adapter that lets you use a quad flat pack 040 in a PGA socket, designed by @zigzagjoe. It’s freely available on his GitHub :)
SophieRose
Good old Bryce
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LaPorta
LaPorta
I have had the program for years. I think I’ve got Bryce 2-4 on my machines, and I also have a version for OS X as well that does run on 10.6, 10.7, etc. so much fun as a kid.
J
joshc
I spent many hours of my childhood using Bryce 2 on a Performa 6200. The rendering times were horrendous but it was worth the wait to see your render by the end of it.
Snial
Snial
@joshc , but isn't @SophieRose using a 68040 Mac to do this? So, the rendering times must be even slower? Unless it's the world's only souped-up 8 core, liquid Nitrogen cooled, 200MHz, 68060 Mac (with hacked '060 Mac OS, obvs).
croissantking
My SE/30s are very ill. Stock PSU issues, mostly. They’re recapped, but their +5V rails are too low. I might try tweaking the voltage pot - but +12V is already quite high.
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croissantking
croissantking
As I recall, anecdotally, they got worse after recapping. The big cap is a slightly different capacitance than the original, I hope that didn’t mess things up.
robin-fo
robin-fo
I didn‘t change the big cap..
croissantking
croissantking
Have you played with the pot yet? I’ve been putting it off as it’s a fiddle to do, but I need to try.
SophieRose
I might regret this purchase lol
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drummerboy51
On a Macintosh restoration journey!
croissantking
Anyone know anything about this mystery USB Port '0' on the Yosemite board? (Next to the firewire module)

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Daniël
Daniël
The Yosemite schematic says J18 should be a test point for the 14MHz clock going to the IMI SG500 clock generator, so the silkscreen for a supposed USB port seems unrelated. There is mention of a removed internal USB port during the prototype phase in the schematic changelog, so it may just be orphaned silkscreening for that.
croissantking
croissantking
That’s interesting!
C
cheesestraws
yeah, agree with @obsolete and @Daniël - that's definitely an RF connector footprint of some description, probably is an SMA but I'm not familiar enough with 'em to be able to tell them by sight so I'll trust @obsolete on this one :-D. No idea what the usb0 silkscreen is doing there.
croissantking
Hit 94.7MHz bus speed on the Beige today, it’s stable but the clock generator can’t seem to handle more. I have some ideas to push it further.

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