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MacClip Jr (Quadra 800/840) Dip Settings

rezwits

rezwits

6502
HI, I just recently got a turbo charged Quadra 800 with a MacClip Jr on board.  It also has an authentic 40 MHz '040, but the Open Transport crashes continuously because of the Serial Ports and acceleration.

All I am looking for are the Dip Settings for the Mac Clip Jr (for the Quadra 800/840) if any one has those I should be good to go if I can just lower it down to 33 MHz / 16.5 MHz (default).

Thanks anyone out there!

Laters...

 
Open Transport was the evil stepchild of Apple networking. You need to carefully set your control panels and extensions right or it will always crash.

But having your 040 running that fast, though it can handle it, like you stated, your ports will be running too fast. But also, does your 040 have a heatsink? In the least you should back it down to 33MHz to get things working again.

 
Last edited by a moderator:
How much faster are you running your Q800?

"Quadra 800

The Quadra 800 has a 16.67 MHz oscillator which runs the processor at 33.33 MHz. The highest speed oscillator you can replace it with while keeping the serial ports functional is 21 MHz, to run the processor at 42 MHz. If you don’t need to use the serial ports, you can put in a 24 MHz oscillator and run the CPU at 48 MHz.

With an Apple PPC card installed, the maximum oscillator you can use is 19.286 MHz, to run the 68040 at 38.572 MHz and the PPC card at 77.144 MHz.

    Info from Mac"

http://lowendmac.com/2014/overclocking-the-mac-quadra-series/

 
Last edited by a moderator:
Elfen said:
Open Transport was the evil stepchild of Apple networking. You need to carefully set your control panels and extensions right or it will always crash.
Click to expand...
Odd. In my experience (at stock speeds), OT has always been easier to set up than classic Mac networking, more stable, and usably fast even on '030s with limited RAM like the PowerBook 180.

In this case, it's probably the overclock causing OT to crash for the OP, not OT itself being the "evil stepchild." (I don't think classifying it as evil stepchild is fair either, it officially replaced the old networking stack somewhere in system 7, and the old stack was just gone somewhere in the 8 family.

 
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