I think that Framiga may be right. Any kind of non-standard format of 72-pin simms usually doesn't work on Phase 5 accelerators, so it's very possible that these single sided 32MB simms wouldn't work, or at least they would show up as 16MB each.
i have here a couple of this "things": 32MB 50ns SS 4 thin chips, seen like 16MB each.
Last but not least, i suspect that this POS, has fried my 1st CSPPC . . . argh!!!