nvdeynde, it cannot be said that ESD damage "to any chip" will cause Simasimac lines at startup. Some damage will cause merely a blank screen with no lines at all. And although I do not know every chip that does cause Simasimac stripes, some among us, like TechKnight, have learned from practical experience (repair of many SE/30 boards) which chip typically die and which exhibit Simasimac stripes at startup. Have a look at TechKnight's comments on that here:

viewtopic.php?p=173470#p173470

Since the BOURNS filters are a very common cause, I bought several and had them shipped to Techknight last year. But as he writes in that post, he suspects one or more other chips are bad too, so he was wanting to lay his hands on a junk (nearly impossible to repair) SE/30 board so he could extract those chips and put them on my board to see if that would resolve the Simasimac.

But the fact remains that if a trace is broken, then changing out any number of chips won't fix your board. So examining traces with both high magnification AND a DMM with Continuity Check (while using schematics to guide you) is time consuming but not in vain. It's just that after confirming all the traces are good (as I myself did with two SE/30 boards I shipped to Techknight), and after pulling all the socketed chips and replacing them with known-good chips from a known-good SE/30 board, there still could be one or more chips (possibly including the BOURNS) that would need to be replaced to finally fix the board.