todays auction finds: A motorola qbus cpu ??

From: Tom Ponsford <tponsford_at_theriver.com>
Date: Tue Jun 29 18:14:34 2004

Hi All

Ethan Dicks wrote:
>
>
>
> I don't recall anything about "Extrel", but unless this card was at the
> top of the bus, it was a peripheral card, not the primary CPU (you have
> to put the CPU at the top because boards "above" the CPU wouldn't be able
> to break the grant chain for interrupts or DMA requests).

The board was at the top of the bus. I'm pretty sure this is not a peripheral
board. The fact that it says on a paper label "QBUS CPU" lead me to beleive
this is the primary cpu board.
>

>
> So what sorts of connectors are coming off the top of the board? 40-pin
> Berg connectors were commonly used for serial ports (DL11E, DUP11, DUV11...)
> but with a 3rd party board, there's no standard.

One 20 pin and two 34 pin connectors

The board looks like it also contains a small amount of ram.

Cheers

Tom


.



> -ethan
>

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Received on Tue Jun 29 2004 - 18:14:34 BST

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