Installing a 32k DS1386 into an SGI Indy that expects an 8k DS1386

The TL;DR is - you can't just plug a 32k DS1386 into an SGI Indy and have it work, as a bunch of stuff is wrong. The longer version! Here's a picture from the datasheet: Now, at the outset it looks like A13 and A14 on the 32k module need to at least be grounded - if they're floated or high then the RAM will be selected when you don't want it to be, and you'll just fail to see the RTC. However, if…