Pin 1 of the Gardener board is not square. However the silkscreen has pin
1 5 10 14 etc marked. Additionally a 30 pin sim 1 connector has small
locator post at pin 1 end and large locator post at pin 30 end. These
thermoplastic locator posts were meant to be mushed down for retention
through a wave.
Pin 1 of SIM 1 boards is the indented "keyed" end.
SIM 1 boards are according to AMP drawing
SIMM2 boards are Jedec 72 pin standard. The spelling is correct the unit is
a "SIM" not a "SIMM"
Wish you luck.
At 07:58 AM 2/28/2001 Wednesday, you wrote:
>When I put together the Gardner board I recall the connector was keyed so
>it could only be plugged into the PC board one way, as well as being keyed to
>prevent the Ucsimm from being plugged in backwards. If this has changed pin
>one on the PC board is usually a different shape (square, etc) from the
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