instant reset with dfe-530tx network card

After installing a D-Link DFE-530TX network adapter in a Big Sur, the machine fails to boot: it resets right at the point where the EFI shell should come up. Has anyone else seen this?

I have only tried on one machine so far, but the reset is clearly due to the network card: if I remove it, the machine boots just fine. I also tried different PCI slots, to no avail. Actually, I only tried the 3.3V slots; perhaps I should have tried the 5V slot. I'll try that later. The firmware is build 117a.

	--david