11 Apr
2007
11 Apr
'07
11:19 p.m.
Hi,
A "cheap and dirty" memory epansion for the
Atari 540ST was....
Here in Europe we had the "520" and the "1040" (and later Mega 1 &
Mega 2),
did Atari market them under slightly different names in the US, IE "540ST"?
The "half good" memory dates back long
before 256K chips--it goes
all the way back to 16K ones....
I believe (though have not verified it myself since I utterly despise the
machines) that Sinclair used this technique in the early Spectrums; they,
apparently, simply disabled the faulty half of the DRAMs using jumpers on
the board.
TTFN - Pete.