Date   : Thu, 16 Dec 2010 15:55:48 -0600
From   : jules.richardson99@... (Jules Richardson)
Subject: Harddisc fakery using a microcontroller

Ian Stocks wrote:
> On 16/12/2010 7:36 pm, Jules Richardson wrote:
>> Phil Blundell wrote:
>>> On Mon, 2010-11-29 at 16:24 +0000, Ian Stocks wrote:
>>>> Did anything have SCSI on-board?, ST506 was on-board for A4xx series,
>>>> but the A540, which had SCSI as standard, was still a podule.
>>> The A680 had onboard SCSI.
>> Coming into the discussion rather late, but so did the M4.
> 
> M4 - "A development computer for RISC iX. Apparently only 2 were built 
> and one was subsequently destroyed"
> 
> It's a good job this conversation hasn't descended into discussion of 
> esoteric machines that no one owns.

Hey, I had the PCB from one in a cupboard for several years, y'know :-)

Never did figure out it if implied a third machine, or was from the one that 
was supposedly destroyed.

Quicky of the PCB: http://www.patooie.com/temp/m4.jpg

The sticker claimed it was s/n 0001, but I never did try peeling it off to see 
if it said anything different underneath (wonder if there was a s/n 0000, or 
if they started numbering at 1?)

There were numerous hacks on the board - wires, extra components etc., and 
obviously whoever built it couldn't find a SCSI socket because the one it had 
was made from two chopped sockets soldered side-by-side (hacked floppy 
connector sockets, quite possibly) :-)

cheers

Jules