Quadra 800 in a IIci?

[olePigeon]

So I was looking at the Quadra 800 motherboard, and the layout looks remarkably smilar to a IIci, all the way down to the ports and the placement of the programmer buttons and Power Supply. It looks like it'd fit in a IIci case. Anyone try this?

The only major layout difference appears to be that the spot where the audio port is on the IIci, there's an extra ADB port for the Quadra 800.

 

[beachycove]

Never tried it myself, but it is said to fit without modification.

 

[MinerAl]

The IIci, IIvi, & Q800 boxes all take the same dimension logic boards. That includes every variation on those themes except the PM9500, whose board is too big to fit in the other (but the others might fit in it).

Search for "board swap al miner" on LowEndMac.com for a chart of logic board form factors.

 

[trag]

Back in the day, Shreve Systems sold an "upgrade" to the IIci in which they would replace the IIci logic board with a Q650 logic board. The Q650 and Q800 logic boards are the same, with only tiny differences in installed components.

IIRC, the rear port openings must be modified to accommodate the different arrangement of the Quadra ports.

I think, but am not certain, that a Q800 board would fit into a Q700 case without modifying either the case or the rear port openings.

 

[olePigeon]

But the Q700 only has 2 NuBUS slot openings. I was looking at the IIci because it has all 3. I think just one port would need to be changed, and that's the audio port (which is an ADB port on a Q800.)

I don't have a Q800 board to play with, though.

 

[Trash80toHP_Mini]

Offhand, the Quadra boards all have the AAUI port, IIRC. This is conspicuously lacking in the IIci port layout, so I'd put in a tentative negatory on that, good buddy. :-/

"board swap al miner"

 

[Trash80toHP_Mini]

You're looking at a much less ambitious hack for a QuadraIIci/IIci040/IIciQuadra than my Quadra 7100 was. You'd only need to graft the ports section from a compatible case for a pseudo-stealth hack. Meanwhile you can cleanly excise the rectangular ports opening in preparation for the graft or just savage the IIci's ports section with a dremel per Al's warning in his (linked in previous post) LowEndMac article.