8 Nov
2006
8 Nov
'06
1:09 p.m.
On 8 Nov 2006 at 12:18, Al Hartman wrote:
A friend gave me a Magitronic XT RAM Card.
A quick way to determine if the board's for 4116's or 4164's is to
remember that 4116's are 3-supply chips, so pin 1 will connect to the
-5 supply rail.
Otherwise, I suspect the DIP switch merely sets the base address for
the DRAM, probably on a 16K or 64K boundary. Shouldn't be too hard
to figure out which.
Cheers,
Chuck