Date   : Sun, 12 Nov 2006 09:39:37 +0000
From   : aixguru@... (Mike Howard)
Subject: 128K Upgrade Board - Fitting Howto

D.G. van der Pol wrote:
> This sounds like a Solidisk 2/4Meg upgrade. As you might have  
> guessed, this one has 128k ram, used for sideways- and shadow ram.
> I think the instruction manual should be on BBC Lives! <http:// 
> www.nvg.ntnu.no/bbc/doc/Solidisk-2and4meg-manual.rtf>
> 
> I have a 4meg/256k board from Solidisk. The ram part of the board is  
> OK, but the 4MHz is very unreliable.
> 
> I used this board primairy for Interword, as you have a lot of  
> sidewaysramsockets & shadow ram.
> 
> Have fun!
> 
> Daniel G.
> 
> 
> Op 11-nov-2006, om 9:36 heeft Mike Howard het volgende geschreven:
> 
>> Hello All,
>>
>> I have a 128k upgrade board for a BBC/B but unfortunately I don't have
>> the fitting instructions.
>>
>> The board is marked '6502' above the 6502 chip and 'TWO' 'MEG' '128'
>> (printed underneath each other)to the left of the 6502 chip.
>>
>> It has a switch wired from the top edge of the board and 3 wires
>> soldered to the bottom edge (underside) of the board.
>>
>> Obviously, it plugs into the 6502 socket on the motherboard but which
>> header (S20? S22?) and in which order do the 3 wires attach? The wires
>> are coloured black, brown and red.
>>
>> Anybody any idea?
>>
>> Any help appreciated.

Hi Daniel,

Thanks for the info and the link. It certainly sounds like the Solidisk 
board but ithe installation instructions pointed to by the link you 
provided refer to; "two spring clips to be clipped on to points in the 
BBC micro."

The board I have here only has the three wires, no sign of spring clips. 
I suppose I could try connecting those as per the instructions and see 
what happens, or maybe doesn't happen :)

Cheers,
Mike.

-- 
Mike Howard                    aixguru at blueyonder dot co dot uk
Eccleston                      (Hotmail Reply-To is a spam trap)
UK