First post, by keenerb
System uses one of Sergey Malinov's atx ISA backplanes and supports various single-board computers that I've collected over the years, as my primary MSDOS/windows 3.1 machine.
Instead of tapping new screw holes or anything like that, I capped each of the existing mount studs with a plastic stud and use the expansion cards themselves to hold motherboard in place. Ergo, there is no contact between motherboard ground plane and chassis through the screws.
I was pondering whether the screws are an integral part of motherboard grounding, but all of the expansion cards seem to have their metal slots grounded to the chassis already.
Any feedback? Is motherboard screw/post grounding generally important?