Memory upgrades

[imactheknife]

I took off some ram chips and put on an expansion board. One works fine, the other one is giving me grief. See attached video. Do ram chips have to be a certain direction like the writing on the top? Sorry if dumb question but I can’t think of anything else? Will attach picture of both sides. The side that says simple sta-165/80 is the side i added the memory too.

 

[obsolete]

Do ram chips have to be a certain direction like the writing on the top?

Yep, see the little dot in the lower left hand corner of the chip? That's pin 1. I'm having trouble making out whether there are any corresponding markings on the board, though. Usually there's a silkscreened dot or some other kind of symbol to match the dot on the chip up to.